final blocksync fixup

This case is symmetric to what we did for CheckTx calls, where we release the
mempool mutex to ensure callbacks can fire during call setup.  We also need
this behaviour for application flush, for the same reason: The caller holds the
lock by contract from the Mempool interface.

.github/dependabot.yml

@@ -1,27 +0,0 @@
-version: 2
-updates:
-  - package-ecosystem: github-actions
-    directory: "/"
-    schedule:
-      interval: daily
-      time: "11:00"
-    open-pull-requests-limit: 10
-  - package-ecosystem: npm
-    directory: "/docs"
-    schedule:
-      interval: daily
-      time: "11:00"
-    open-pull-requests-limit: 10
-    reviewers:
-      - fadeev
-  - package-ecosystem: gomod
-    directory: "/"
-    schedule:
-      interval: daily
-      time: "11:00"
-    open-pull-requests-limit: 10
-    reviewers:
-      - melekes
-      - tessr
-    labels:
-      - T:dependencies

.github/workflows/build.yml

@@ -20,11 +20,11 @@ jobs:
         goos: ["linux"]
     timeout-minutes: 5
     steps:
-      - uses: actions/setup-go@v2
+      - uses: actions/setup-go@v3
         with:
           go-version: "1.17"
-      - uses: actions/checkout@v2.4.0
-      - uses: technote-space/get-diff-action@v5
+      - uses: actions/checkout@v3
+      - uses: technote-space/get-diff-action@v6
         with:
           PATTERNS: |
             **/**.go
@@ -41,11 +41,11 @@ jobs:
     needs: build
     timeout-minutes: 5
     steps:
-      - uses: actions/setup-go@v2
+      - uses: actions/setup-go@v3
         with:
           go-version: "1.17"
-      - uses: actions/checkout@v2.4.0
-      - uses: technote-space/get-diff-action@v5
+      - uses: actions/checkout@v3
+      - uses: technote-space/get-diff-action@v6
         with:
           PATTERNS: |
             **/**.go
@@ -63,11 +63,11 @@ jobs:
     needs: build
     timeout-minutes: 5
     steps:
-      - uses: actions/setup-go@v2
+      - uses: actions/setup-go@v3
         with:
           go-version: "1.17"
-      - uses: actions/checkout@v2.4.0
-      - uses: technote-space/get-diff-action@v5
+      - uses: actions/checkout@v3
+      - uses: technote-space/get-diff-action@v6
         with:
           PATTERNS: |
             **/**.go

.github/workflows/docker.yml

@@ -13,7 +13,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2.3.4
+      - uses: actions/checkout@v3
       - name: Prepare
         id: prep
         run: |
@@ -39,17 +39,17 @@ jobs:
           platforms: all
 
       - name: Set up Docker Build
-        uses: docker/setup-buildx-action@v1.6.0
+        uses: docker/setup-buildx-action@v2
 
       - name: Login to DockerHub
         if: ${{ github.event_name != 'pull_request' }}
-        uses: docker/login-action@v1.10.0
+        uses: docker/login-action@v2
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
 
       - name: Publish to Docker Hub
-        uses: docker/build-push-action@v2.7.0
+        uses: docker/build-push-action@v3
         with:
           context: .
           file: ./DOCKER/Dockerfile

.github/workflows/e2e-manual.yml

@@ -15,11 +15,11 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 60
     steps:
-      - uses: actions/setup-go@v2
+      - uses: actions/setup-go@v3
         with:
           go-version: '1.17'
 
-      - uses: actions/checkout@v2.4.0
+      - uses: actions/checkout@v3
 
       - name: Build
         working-directory: test/e2e

.github/workflows/e2e-nightly-34x.yml

@@ -21,11 +21,11 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 60
     steps:
-      - uses: actions/setup-go@v2
+      - uses: actions/setup-go@v3
         with:
           go-version: '1.17'
 
-      - uses: actions/checkout@v2.3.4
+      - uses: actions/checkout@v3
         with:
           ref: 'v0.34.x'
 

.github/workflows/e2e-nightly-master.yml

@@ -21,11 +21,11 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 60
     steps:
-      - uses: actions/setup-go@v2
+      - uses: actions/setup-go@v3
         with:
           go-version: '1.17'
 
-      - uses: actions/checkout@v2.3.4
+      - uses: actions/checkout@v3
 
       - name: Build
         working-directory: test/e2e

.github/workflows/e2e.yml

@@ -14,11 +14,11 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 15
     steps:
-      - uses: actions/setup-go@v2
+      - uses: actions/setup-go@v3
         with:
           go-version: '1.17'
-      - uses: actions/checkout@v2.3.4
-      - uses: technote-space/get-diff-action@v5
+      - uses: actions/checkout@v3
+      - uses: technote-space/get-diff-action@v6
         with:
           PATTERNS: |
             **/**.go

.github/workflows/fuzz-nightly.yml

@@ -13,11 +13,11 @@ jobs:
   fuzz-nightly-test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/setup-go@v2
+      - uses: actions/setup-go@v3
         with:
           go-version: '1.17'
 
-      - uses: actions/checkout@v2.3.4
+      - uses: actions/checkout@v3
 
       - name: Install go-fuzz
         working-directory: test/fuzz
@@ -54,14 +54,14 @@ jobs:
         continue-on-error: true
 
       - name: Archive crashers
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v3
         with:
           name: crashers
           path: test/fuzz/**/crashers
           retention-days: 3
 
       - name: Archive suppressions
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v3
         with:
           name: suppressions
           path: test/fuzz/**/suppressions

.github/workflows/janitor.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 3
     steps:
-      - uses: styfle/cancel-workflow-action@0.9.1
+      - uses: styfle/cancel-workflow-action@0.10.0
         with:
           workflow_id: 1041851,1401230,2837803
           access_token: ${{ github.token }}

.github/workflows/jepsen.yml

@@ -46,7 +46,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout the Jepsen repository
-        uses: actions/checkout@v2.3.4
+        uses: actions/checkout@v3
         with:
           repository: 'tendermint/jepsen'
 
@@ -58,7 +58,7 @@ jobs:
         run: docker exec -i jepsen-control bash -c 'source /root/.bashrc; cd /jepsen/tendermint; lein run test --nemesis ${{ github.event.inputs.nemesis }} --workload ${{ github.event.inputs.workload }} --concurrency ${{ github.event.inputs.concurrency }} --tendermint-url ${{ github.event.inputs.tendermintUrl }} --merkleeyes-url ${{ github.event.inputs.merkleeyesUrl }} --time-limit ${{ github.event.inputs.timeLimit }} ${{ github.event.inputs.dupOrSuperByzValidators }}'
 
       - name: Archive results
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v3
         with:
           name: results
           path: tendermint/store/latest

.github/workflows/linkchecker.yml

@@ -6,7 +6,7 @@ jobs:
   markdown-link-check:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2.3.4
-      - uses: gaurav-nelson/github-action-markdown-link-check@1.0.13
+      - uses: actions/checkout@v3
+      - uses: creachadair/github-action-markdown-link-check@master
         with:
           folder-path: "docs"

.github/workflows/lint.yml

@@ -21,13 +21,13 @@ jobs:
       - uses: actions/setup-go@v3
         with:
           go-version: '^1.17'
-      - uses: technote-space/get-diff-action@v6.0.1
+      - uses: technote-space/get-diff-action@v6
         with:
           PATTERNS: |
             **/**.go
             go.mod
             go.sum
-      - uses: golangci/golangci-lint-action@v3.1.0
+      - uses: golangci/golangci-lint-action@v3
         with:
           # Required: the version of golangci-lint is required and
           # must be specified without patch version: we always use the

.github/workflows/linter.yml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Code
-        uses: actions/checkout@v2.4.0
+        uses: actions/checkout@v3
       - name: Lint Code Base
         uses: docker://github/super-linter:v4
         env:

.github/workflows/proto-docker.yml

@@ -16,7 +16,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2.3.4
+      - uses: actions/checkout@v3
       - name: Prepare
         id: prep
         run: |
@@ -34,16 +34,16 @@ jobs:
           echo ::set-output name=tags::${TAGS}
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v1.6.0
+        uses: docker/setup-buildx-action@v2
 
       - name: Login to DockerHub
-        uses: docker/login-action@v1.10.0
+        uses: docker/login-action@v2
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
 
       - name: Publish to Docker Hub
-        uses: docker/build-push-action@v2.7.0
+        uses: docker/build-push-action@v3
         with:
           context: ./tools/proto
           file: ./tools/proto/Dockerfile

.github/workflows/proto.yml

@@ -11,13 +11,13 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 4
     steps:
-      - uses: actions/checkout@v2.3.4
+      - uses: actions/checkout@v3
       - name: lint
         run: make proto-lint
   proto-breakage:
     runs-on: ubuntu-latest
     timeout-minutes: 4
     steps:
-      - uses: actions/checkout@v2.3.4
+      - uses: actions/checkout@v3
       - name: check-breakage
         run: make proto-check-breaking-ci

.github/workflows/release.yml

@@ -16,12 +16,12 @@ jobs:
         with:
           fetch-depth: 0
 
-      - uses: actions/setup-go@v2
+      - uses: actions/setup-go@v3
         with:
           go-version: '1.17'
 
       - name: Build
-        uses: goreleaser/goreleaser-action@v2
+        uses: goreleaser/goreleaser-action@v3
         if: ${{ github.event_name == 'pull_request' }}
         with:
           version: latest
@@ -30,7 +30,7 @@ jobs:
       - run: echo https://github.com/tendermint/tendermint/blob/${GITHUB_REF#refs/tags/}/CHANGELOG.md#${GITHUB_REF#refs/tags/} > ../release_notes.md
 
       - name: Release
-        uses: goreleaser/goreleaser-action@v2
+        uses: goreleaser/goreleaser-action@v3
         if: startsWith(github.ref, 'refs/tags/')
         with:
           version: latest

.github/workflows/stale.yml

@@ -7,7 +7,7 @@ jobs:
   stale:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/stale@v4
+      - uses: actions/stale@v5
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
           stale-pr-message: "This pull request has been automatically marked as stale because it has not had

.github/workflows/tests.yml

@@ -16,11 +16,11 @@ jobs:
       matrix:
         part: ["00", "01", "02", "03", "04", "05"]
     steps:
-      - uses: actions/setup-go@v2
+      - uses: actions/setup-go@v3
         with:
           go-version: "1.17"
-      - uses: actions/checkout@v2.3.4
-      - uses: technote-space/get-diff-action@v5
+      - uses: actions/checkout@v3
+      - uses: technote-space/get-diff-action@v6
         with:
           PATTERNS: |
             **/**.go
@@ -32,7 +32,7 @@ jobs:
         run: |
           make test-group-${{ matrix.part }} NUM_SPLIT=6
         if: env.GIT_DIFF
-      - uses: actions/upload-artifact@v2
+      - uses: actions/upload-artifact@v3
         with:
           name: "${{ github.sha }}-${{ matrix.part }}-coverage"
           path: ./build/${{ matrix.part }}.profile.out
@@ -41,8 +41,8 @@ jobs:
     runs-on: ubuntu-latest
     needs: tests
     steps:
-      - uses: actions/checkout@v2.4.0
-      - uses: technote-space/get-diff-action@v5
+      - uses: actions/checkout@v3
+      - uses: technote-space/get-diff-action@v6
         with:
           PATTERNS: |
             **/**.go
@@ -50,26 +50,26 @@ jobs:
             go.mod
             go.sum
             Makefile
-      - uses: actions/download-artifact@v2
+      - uses: actions/download-artifact@v3
         with:
           name: "${{ github.sha }}-00-coverage"
         if: env.GIT_DIFF
-      - uses: actions/download-artifact@v2
+      - uses: actions/download-artifact@v3
         with:
           name: "${{ github.sha }}-01-coverage"
         if: env.GIT_DIFF
-      - uses: actions/download-artifact@v2
+      - uses: actions/download-artifact@v3
         with:
           name: "${{ github.sha }}-02-coverage"
         if: env.GIT_DIFF
-      - uses: actions/download-artifact@v2
+      - uses: actions/download-artifact@v3
         with:
           name: "${{ github.sha }}-03-coverage"
         if: env.GIT_DIFF
       - run: |
           cat ./*profile.out | grep -v "mode: set" >> coverage.txt
         if: env.GIT_DIFF
-      - uses: codecov/codecov-action@v2.1.0
+      - uses: codecov/codecov-action@v3
         with:
           file: ./coverage.txt
         if: env.GIT_DIFF

CHANGELOG.md

@@ -2,6 +2,52 @@
 
 Friendly reminder: We have a [bug bounty program](https://hackerone.com/cosmos).
 
+## v0.35.7
+
+June 16, 2022
+
+### BUG FIXES
+
+- [p2p] [\#8692](https://github.com/tendermint/tendermint/pull/8692) scale the number of stored peers by the configured maximum connections (#8684)
+- [rpc] [\#8715](https://github.com/tendermint/tendermint/pull/8715) always close http bodies (backport #8712)
+- [p2p] [\#8760](https://github.com/tendermint/tendermint/pull/8760) accept should not abort on first error (backport #8759)
+
+### BREAKING CHANGES
+
+- P2P Protocol
+
+  - [p2p] [\#8737](https://github.com/tendermint/tendermint/pull/8737) Introduce "inactive" peer label to avoid re-dialing incompatible peers. (@tychoish)
+  - [p2p] [\#8737](https://github.com/tendermint/tendermint/pull/8737) Increase frequency of dialing attempts to reduce latency for peer acquisition. (@tychoish)
+  - [p2p] [\#8737](https://github.com/tendermint/tendermint/pull/8737) Improvements to peer scoring and sorting to gossip a greater variety of peers during PEX. (@tychoish)
+  - [p2p] [\#8737](https://github.com/tendermint/tendermint/pull/8737) Track incoming and outgoing peers separately to ensure more peer slots open for incoming connections. (@tychoish)
+
+## v0.35.6
+
+June 3, 2022
+
+### FEATURES
+
+- [migrate] [\#8672](https://github.com/tendermint/tendermint/pull/8672) provide function for database production (backport #8614) (@tychoish)
+
+### BUG FIXES
+
+- [consensus] [\#8651](https://github.com/tendermint/tendermint/pull/8651) restructure peer catchup sleep (@tychoish)
+- [pex] [\#8657](https://github.com/tendermint/tendermint/pull/8657) align max address thresholds (@cmwaters)
+- [cmd] [\#8668](https://github.com/tendermint/tendermint/pull/8668) don't used global config for reset commands (@cmwaters)
+- [p2p] [\#8681](https://github.com/tendermint/tendermint/pull/8681) shed peers from store from other networks (backport #8678) (@tychoish)
+
+## v0.35.5
+
+May 26, 2022
+
+### BUG FIXES
+
+- [p2p] [\#8371](https://github.com/tendermint/tendermint/pull/8371) fix setting in con-tracker (backport #8370) (@tychoish)
+- [blocksync] [\#8496](https://github.com/tendermint/tendermint/pull/8496) validate block against state before persisting it to disk (@cmwaters)
+- [statesync] [\#8494](https://github.com/tendermint/tendermint/pull/8494) avoid potential race (@tychoish)
+- [keymigrate] [\#8467](https://github.com/tendermint/tendermint/pull/8467) improve filtering for legacy transaction hashes (backport #8466) (@creachadair)
+- [rpc] [\#8594](https://github.com/tendermint/tendermint/pull/8594) fix encoding of block_results responses (@creachadair)
+
 ## v0.35.4
 
 April 18, 2022

CHANGELOG_PENDING.md

@@ -2,7 +2,7 @@
 
 Friendly reminder: We have a [bug bounty program](https://hackerone.com/cosmos).
 
-## v0.35.5
+## v0.35.8
 
 Month DD, YYYY
 
@@ -22,6 +22,10 @@ Special thanks to external contributors on this release:
 
 ### FEATURES
 
+- [cli] [\#8675] Add command to force compact goleveldb databases (@cmwaters)
+
 ### IMPROVEMENTS
 
 ### BUG FIXES
+
+- [mempool] \#8944 Fix unbounded heap growth in the priority mempool. (@creachadair)

Makefile

@@ -228,10 +228,8 @@ build-docs:
 ###                            Docker image                                 ###
 ###############################################################################
 
-build-docker: build-linux
-	cp $(BUILDDIR)/tendermint DOCKER/tendermint
+build-docker:
 	docker build --label=tendermint --tag="tendermint/tendermint" -f DOCKER/Dockerfile .
-	rm -rf DOCKER/tendermint
 .PHONY: build-docker
 
 

UPGRADING.md

@@ -66,22 +66,25 @@ This guide provides instructions for upgrading to specific versions of Tendermin
 
 The format of all tendermint on-disk database keys changes in
 0.35. Upgrading nodes must either re-sync all data or run a migration
-script provided in this release. The script located in
-`github.com/tendermint/tendermint/scripts/keymigrate/migrate.go`
-provides the function `Migrate(context.Context, db.DB)` which you can
-operationalize as makes sense for your deployment.
+script provided in this release.
+
+The script located in
+`github.com/tendermint/tendermint/scripts/keymigrate/migrate.go` provides the
+function `Migrate(context.Context, db.DB)` which you can operationalize as
+makes sense for your deployment.
 
 For ease of use the `tendermint` command includes a CLI version of the
 migration script, which you can invoke, as in:
 
 	tendermint key-migrate
 
-This reads the configuration file as normal and allows the
-`--db-backend` and `--db-dir` flags to change database operations as
-needed.
+This reads the configuration file as normal and allows the `--db-backend` and
+`--db-dir` flags to override the database location as needed.
 
-The migration operation is idempotent and can be run more than once,
-if needed.
+The migration operation is intended to be idempotent, and should be safe to
+rerun on the same database multiple times.  As a safety measure, however, we
+recommend that operators test out the migration on a copy of the database
+first, if it is practical to do so, before applying it to the production data.
 
 ### CLI Changes
 

abci/client/mocks/client.go

@@ -801,3 +801,18 @@ func (_m *Client) String() string {
 func (_m *Client) Wait() {
 	_m.Called()
 }
+
+type mockConstructorTestingTNewClient interface {
+	mock.TestingT
+	Cleanup(func())
+}
+
+// NewClient creates a new instance of Client. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
+func NewClient(t mockConstructorTestingTNewClient) *Client {
+	mock := &Client{}
+	mock.Mock.Test(t)
+
+	t.Cleanup(func() { mock.AssertExpectations(t) })
+
+	return mock
+}

abci/types/result.go

@@ -5,6 +5,9 @@ import (
 	"encoding/json"
 
 	"github.com/gogo/protobuf/jsonpb"
+	"github.com/tendermint/tendermint/crypto"
+	"github.com/tendermint/tendermint/crypto/encoding"
+	tmjson "github.com/tendermint/tendermint/libs/json"
 )
 
 const (
@@ -102,6 +105,48 @@ func (r *EventAttribute) UnmarshalJSON(b []byte) error {
 	return jsonpbUnmarshaller.Unmarshal(reader, r)
 }
 
+// validatorUpdateJSON is the JSON encoding of a validator update.
+//
+// It handles translation of public keys from the protobuf representation to
+// the legacy Amino-compatible format expected by RPC clients.
+type validatorUpdateJSON struct {
+	PubKey json.RawMessage `json:"pub_key,omitempty"`
+	Power  int64           `json:"power,string"`
+}
+
+func (v *ValidatorUpdate) MarshalJSON() ([]byte, error) {
+	key, err := encoding.PubKeyFromProto(v.PubKey)
+	if err != nil {
+		return nil, err
+	}
+	jkey, err := tmjson.Marshal(key)
+	if err != nil {
+		return nil, err
+	}
+	return json.Marshal(validatorUpdateJSON{
+		PubKey: jkey,
+		Power:  v.GetPower(),
+	})
+}
+
+func (v *ValidatorUpdate) UnmarshalJSON(data []byte) error {
+	var vu validatorUpdateJSON
+	if err := json.Unmarshal(data, &vu); err != nil {
+		return err
+	}
+	var key crypto.PubKey
+	if err := tmjson.Unmarshal(vu.PubKey, &key); err != nil {
+		return err
+	}
+	pkey, err := encoding.PubKeyToProto(key)
+	if err != nil {
+		return err
+	}
+	v.PubKey = pkey
+	v.Power = vu.Power
+	return nil
+}
+
 // Some compile time assertions to ensure we don't
 // have accidental runtime surprises later on.
 

cmd/tendermint/commands/compact.go

@@ -0,0 +1,69 @@
+package commands
+
+import (
+	"errors"
+	"path/filepath"
+	"sync"
+
+	"github.com/spf13/cobra"
+	"github.com/syndtr/goleveldb/leveldb"
+	"github.com/syndtr/goleveldb/leveldb/opt"
+	"github.com/syndtr/goleveldb/leveldb/util"
+	"github.com/tendermint/tendermint/libs/log"
+)
+
+func MakeCompactDBCommand() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "experimental-compact-goleveldb",
+		Short: "force compacts the tendermint storage engine (only GoLevelDB supported)",
+		Long: `
+This is a temporary utility command that performs a force compaction on the state 
+and blockstores to reduce disk space for a pruning node. This should only be run 
+once the node has stopped. This command will likely be omitted in the future after
+the planned refactor to the storage engine.
+
+Currently, only GoLevelDB is supported.
+	`,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			if config.DBBackend != "goleveldb" {
+				return errors.New("compaction is currently only supported with goleveldb")
+			}
+
+			compactGoLevelDBs(config.RootDir, logger)
+			return nil
+		},
+	}
+
+	return cmd
+}
+
+func compactGoLevelDBs(rootDir string, logger log.Logger) {
+	dbNames := []string{"state", "blockstore"}
+	o := &opt.Options{
+		DisableSeeksCompaction: true,
+	}
+	wg := sync.WaitGroup{}
+
+	for _, dbName := range dbNames {
+		dbName := dbName
+		wg.Add(1)
+		go func() {
+			defer wg.Done()
+			dbPath := filepath.Join(rootDir, "data", dbName+".db")
+			store, err := leveldb.OpenFile(dbPath, o)
+			if err != nil {
+				logger.Error("failed to initialize tendermint db", "path", dbPath, "err", err)
+				return
+			}
+			defer store.Close()
+
+			logger.Info("starting compaction...", "db", dbPath)
+
+			err = store.CompactRange(util.Range{Start: nil, Limit: nil})
+			if err != nil {
+				logger.Error("failed to compact tendermint db", "path", dbPath, "err", err)
+			}
+		}()
+	}
+	wg.Wait()
+}

cmd/tendermint/commands/key_migrate.go

@@ -5,7 +5,9 @@ import (
 	"fmt"
 
 	"github.com/spf13/cobra"
+
 	cfg "github.com/tendermint/tendermint/config"
+	"github.com/tendermint/tendermint/libs/log"
 	"github.com/tendermint/tendermint/scripts/keymigrate"
 	"github.com/tendermint/tendermint/scripts/scmigrate"
 )
@@ -15,53 +17,7 @@ func MakeKeyMigrateCommand() *cobra.Command {
 		Use:   "key-migrate",
 		Short: "Run Database key migration",
 		RunE: func(cmd *cobra.Command, args []string) error {
-			ctx, cancel := context.WithCancel(cmd.Context())
-			defer cancel()
-
-			contexts := []string{
-				// this is ordered to put the
-				// (presumably) biggest/most important
-				// subsets first.
-				"blockstore",
-				"state",
-				"peerstore",
-				"tx_index",
-				"evidence",
-				"light",
-			}
-
-			for idx, dbctx := range contexts {
-				logger.Info("beginning a key migration",
-					"dbctx", dbctx,
-					"num", idx+1,
-					"total", len(contexts),
-				)
-
-				db, err := cfg.DefaultDBProvider(&cfg.DBContext{
-					ID:     dbctx,
-					Config: config,
-				})
-
-				if err != nil {
-					return fmt.Errorf("constructing database handle: %w", err)
-				}
-
-				if err = keymigrate.Migrate(ctx, db); err != nil {
-					return fmt.Errorf("running migration for context %q: %w",
-						dbctx, err)
-				}
-
-				if dbctx == "blockstore" {
-					if err := scmigrate.Migrate(ctx, db); err != nil {
-						return fmt.Errorf("running seen commit migration: %w", err)
-
-					}
-				}
-			}
-
-			logger.Info("completed database migration successfully")
-
-			return nil
+			return RunDatabaseMigration(cmd.Context(), logger, config)
 		},
 	}
 
@@ -70,3 +26,51 @@ func MakeKeyMigrateCommand() *cobra.Command {
 
 	return cmd
 }
+
+func RunDatabaseMigration(ctx context.Context, logger log.Logger, conf *cfg.Config) error {
+	contexts := []string{
+		// this is ordered to put
+		// the more ephemeral tables first to
+		// reduce the possibility of the
+		// ephemeral data overwriting later data
+		"tx_index",
+		"peerstore",
+		"light",
+		"blockstore",
+		"state",
+		"evidence",
+	}
+
+	for idx, dbctx := range contexts {
+		logger.Info("beginning a key migration",
+			"dbctx", dbctx,
+			"num", idx+1,
+			"total", len(contexts),
+		)
+
+		db, err := cfg.DefaultDBProvider(&cfg.DBContext{
+			ID:     dbctx,
+			Config: conf,
+		})
+
+		if err != nil {
+			return fmt.Errorf("constructing database handle: %w", err)
+		}
+
+		if err = keymigrate.Migrate(ctx, db); err != nil {
+			return fmt.Errorf("running migration for context %q: %w",
+				dbctx, err)
+		}
+
+		if dbctx == "blockstore" {
+			if err := scmigrate.Migrate(ctx, db); err != nil {
+				return fmt.Errorf("running seen commit migration: %w", err)
+
+			}
+		}
+	}
+
+	logger.Info("completed database migration successfully")
+
+	return nil
+}

cmd/tendermint/commands/reset.go

@@ -27,6 +27,11 @@ var ResetStateCmd = &cobra.Command{
 	Use:   "reset-state",
 	Short: "Remove all the data and WAL",
 	RunE: func(cmd *cobra.Command, args []string) error {
+		config, err := ParseConfig()
+		if err != nil {
+			return err
+		}
+
 		return resetState(config.DBDir(), logger, keyType)
 	},
 }
@@ -47,13 +52,27 @@ var ResetPrivValidatorCmd = &cobra.Command{
 // XXX: this is totally unsafe.
 // it's only suitable for testnets.
 func resetAllCmd(cmd *cobra.Command, args []string) error {
-	return resetAll(config.DBDir(), config.P2P.AddrBookFile(), config.PrivValidator.KeyFile(),
-		config.PrivValidator.StateFile(), logger)
+	config, err := ParseConfig()
+	if err != nil {
+		return err
+	}
+
+	return resetAll(
+		config.DBDir(),
+		config.P2P.AddrBookFile(),
+		config.PrivValidator.KeyFile(),
+		config.PrivValidator.StateFile(),
+		logger,
+	)
 }
 
 // XXX: this is totally unsafe.
 // it's only suitable for testnets.
 func resetPrivValidator(cmd *cobra.Command, args []string) error {
+	config, err := ParseConfig()
+	if err != nil {
+		return err
+	}
 	return resetFilePV(config.PrivValidator.KeyFile(), config.PrivValidator.StateFile(), logger, keyType)
 }
 

cmd/tendermint/commands/run_node.go

@@ -34,9 +34,6 @@ func AddNodeFlags(cmd *cobra.Command) {
 		config.PrivValidator.ListenAddr,
 		"socket address to listen on for connections from external priv-validator process")
 
-	// node flags
-	cmd.Flags().Bool("blocksync.enable", config.BlockSync.Enable, "enable fast blockchain syncing")
-
 	// TODO (https://github.com/tendermint/tendermint/issues/6908): remove this check after the v0.35 release cycle
 	// This check was added to give users an upgrade prompt to use the new flag for syncing.
 	//

cmd/tendermint/main.go

@@ -32,6 +32,7 @@ func main() {
 		cmd.InspectCmd,
 		cmd.RollbackStateCmd,
 		cmd.MakeKeyMigrateCommand(),
+		cmd.MakeCompactDBCommand(),
 		debug.DebugCmd,
 		cli.NewCompletionCmd(rootCmd, true),
 	)

config/config.go

@@ -712,6 +712,10 @@ type P2PConfig struct { //nolint: maligned
 	// outbound).
 	MaxConnections uint16 `mapstructure:"max-connections"`
 
+	// MaxOutgoingConnections defines the maximum number of connected peers (inbound and
+	// outbound).
+	MaxOutgoingConnections uint16 `mapstructure:"max-outgoing-connections"`
+
 	// MaxIncomingConnectionAttempts rate limits the number of incoming connection
 	// attempts per IP address.
 	MaxIncomingConnectionAttempts uint `mapstructure:"max-incoming-connection-attempts"`
@@ -774,6 +778,7 @@ func DefaultP2PConfig() *P2PConfig {
 		MaxNumInboundPeers:            40,
 		MaxNumOutboundPeers:           10,
 		MaxConnections:                64,
+		MaxOutgoingConnections:        12,
 		MaxIncomingConnectionAttempts: 100,
 		PersistentPeersMaxDialPeriod:  0 * time.Second,
 		FlushThrottleTimeout:          100 * time.Millisecond,
@@ -833,6 +838,9 @@ func (cfg *P2PConfig) ValidateBasic() error {
 	if cfg.RecvRate < 0 {
 		return errors.New("recv-rate can't be negative")
 	}
+	if cfg.MaxOutgoingConnections > cfg.MaxConnections {
+		return errors.New("max-outgoing-connections cannot be larger than max-connections")
+	}
 	return nil
 }
 

config/toml.go

@@ -355,6 +355,10 @@ max-num-outbound-peers = {{ .P2P.MaxNumOutboundPeers }}
 # Maximum number of connections (inbound and outbound).
 max-connections = {{ .P2P.MaxConnections }}
 
+# Maximum number of connections reserved for outgoing
+# connections. Must be less than max-connections
+max-outgoing-connections = {{ .P2P.MaxOutgoingConnections }}
+
 # Rate limits the number of incoming connection attempts per IP address.
 max-incoming-connection-attempts = {{ .P2P.MaxIncomingConnectionAttempts }}
 

docs/.vuepress/config.js

@@ -44,10 +44,6 @@ module.exports = {
         {
           title: 'Resources',
           children: [
-            {
-              title: 'Developer Sessions',
-              path: '/DEV_SESSIONS.html'
-            },
             {
               // TODO(creachadair): Figure out how to make this per-branch.
               // See: https://github.com/tendermint/tendermint/issues/7908

docs/nodes/metrics.md

@@ -18,39 +18,43 @@ Listen address can be changed in the config file (see
 
 The following metrics are available:
 
-| **Name**                               | **Type**  | **Tags**      | **Description**                                                        |
-| -------------------------------------- | --------- | ------------- | ---------------------------------------------------------------------- |
-| abci_connection_method_timing          | Histogram | method, type  | Timings for each of the ABCI methods                                   |
-| consensus_height                       | Gauge     |               | Height of the chain                                                    |
-| consensus_validators                   | Gauge     |               | Number of validators                                                   |
-| consensus_validators_power             | Gauge     |               | Total voting power of all validators                                   |
-| consensus_validator_power              | Gauge     |               | Voting power of the node if in the validator set                       |
-| consensus_validator_last_signed_height | Gauge     |               | Last height the node signed a block, if the node is a validator        |
-| consensus_validator_missed_blocks      | Gauge     |               | Total amount of blocks missed for the node, if the node is a validator |
-| consensus_missing_validators           | Gauge     |               | Number of validators who did not sign                                  |
-| consensus_missing_validators_power     | Gauge     |               | Total voting power of the missing validators                           |
-| consensus_byzantine_validators         | Gauge     |               | Number of validators who tried to double sign                          |
-| consensus_byzantine_validators_power   | Gauge     |               | Total voting power of the byzantine validators                         |
-| consensus_block_interval_seconds       | Histogram |               | Time between this and last block (Block.Header.Time) in seconds        |
-| consensus_rounds                       | Gauge     |               | Number of rounds                                                       |
-| consensus_num_txs                      | Gauge     |               | Number of transactions                                                 |
-| consensus_total_txs                    | Gauge     |               | Total number of transactions committed                                 |
-| consensus_block_parts                  | counter   | peer_id       | number of blockparts transmitted by peer                               |
-| consensus_latest_block_height          | gauge     |               | /status sync_info number                                               |
-| consensus_fast_syncing                 | gauge     |               | either 0 (not fast syncing) or 1 (syncing)                             |
-| consensus_state_syncing                | gauge     |               | either 0 (not state syncing) or 1 (syncing)                            |
-| consensus_block_size_bytes             | Gauge     |               | Block size in bytes                                                    |
-| p2p_peers                              | Gauge     |               | Number of peers node's connected to                                    |
-| p2p_peer_receive_bytes_total           | counter   | peer_id, chID | number of bytes per channel received from a given peer                 |
-| p2p_peer_send_bytes_total              | counter   | peer_id, chID | number of bytes per channel sent to a given peer                       |
-| p2p_peer_pending_send_bytes            | gauge     | peer_id       | number of pending bytes to be sent to a given peer                     |
-| p2p_num_txs                            | gauge     | peer_id       | number of transactions submitted by each peer_id                       |
-| p2p_pending_send_bytes                 | gauge     | peer_id       | amount of data pending to be sent to peer                              |
-| mempool_size                           | Gauge     |               | Number of uncommitted transactions                                     |
-| mempool_tx_size_bytes                  | histogram |               | transaction sizes in bytes                                             |
-| mempool_failed_txs                     | counter   |               | number of failed transactions                                          |
-| mempool_recheck_times                  | counter   |               | number of transactions rechecked in the mempool                        |
-| state_block_processing_time            | histogram |               | time between BeginBlock and EndBlock in ms                             |
+| **Name**                               | **Type**  | **Tags**      | **Description**                                                                                           |
+|----------------------------------------|-----------|---------------|-----------------------------------------------------------------------------------------------------------|
+| abci_connection_method_timing          | Histogram | method, type  | Timings for each of the ABCI methods                                                                      |
+| consensus_height                       | Gauge     |               | Height of the chain                                                                                       |
+| consensus_validators                   | Gauge     |               | Number of validators                                                                                      |
+| consensus_validators_power             | Gauge     |               | Total voting power of all validators                                                                      |
+| consensus_validator_power              | Gauge     |               | Voting power of the node if in the validator set                                                          |
+| consensus_validator_last_signed_height | Gauge     |               | Last height the node signed a block, if the node is a validator                                           |
+| consensus_validator_missed_blocks      | Gauge     |               | Total amount of blocks missed for the node, if the node is a validator                                    |
+| consensus_missing_validators           | Gauge     |               | Number of validators who did not sign                                                                     |
+| consensus_missing_validators_power     | Gauge     |               | Total voting power of the missing validators                                                              |
+| consensus_byzantine_validators         | Gauge     |               | Number of validators who tried to double sign                                                             |
+| consensus_byzantine_validators_power   | Gauge     |               | Total voting power of the byzantine validators                                                            |
+| consensus_block_interval_seconds       | Histogram |               | Time between this and last block (Block.Header.Time) in seconds                                           |
+| consensus_rounds                       | Gauge     |               | Number of rounds                                                                                          |
+| consensus_num_txs                      | Gauge     |               | Number of transactions                                                                                    |
+| consensus_total_txs                    | Gauge     |               | Total number of transactions committed                                                                    |
+| consensus_block_parts                  | counter   | peer_id       | number of blockparts transmitted by peer                                                                  |
+| consensus_latest_block_height          | gauge     |               | /status sync_info number                                                                                  |
+| consensus_fast_syncing                 | gauge     |               | either 0 (not fast syncing) or 1 (syncing)                                                                |
+| consensus_state_syncing                | gauge     |               | either 0 (not state syncing) or 1 (syncing)                                                               |
+| consensus_block_size_bytes             | Gauge     |               | Block size in bytes                                                                                       |
+| p2p_peers                              | Gauge     |               | Number of peers node's connected to                                                                       |
+| p2p_peer_receive_bytes_total           | Counter   | peer_id, chID | number of bytes per channel received from a given peer                                                    |
+| p2p_peer_send_bytes_total              | Counter   | peer_id, chID | number of bytes per channel sent to a given peer                                                          |
+| p2p_peer_pending_send_bytes            | Gauge     | peer_id       | number of pending bytes to be sent to a given peer                                                        |
+| p2p_router_peer_queue_recv             | Histogram |               | The time taken to read off of a peer's queue before sending on the connection                             |
+| p2p_router_peer_queue_send             | Histogram |               | The time taken to send on a peer's queue which will later be sent on the connection                       |
+| p2p_router_channel_queue_send          | Histogram |               | The time taken to send on a p2p channel's queue which will later be consumed by the corresponding service |
+| p2p_router_channel_queue_dropped_msgs  | Counter   | ch_id         | The number of messages dropped from a peer's queue for a specific p2p channel                             |
+| p2p_peer_queue_msg_size                | Gauge     | ch_id         | The size of messages sent over a peer's queue for a specific p2p channel                                  |
+| mempool_size                           | Gauge     |               | Number of uncommitted transactions                                                                        |
+| mempool_tx_size_bytes                  | histogram |               | transaction sizes in bytes                                                                                |
+| mempool_failed_txs                     | counter   |               | number of failed transactions                                                                             |
+| mempool_recheck_times                  | counter   |               | number of transactions rechecked in the mempool                                                           |
+| state_block_processing_time            | histogram |               | time between BeginBlock and EndBlock in ms                                                                |
+
 
 ## Useful queries
 

go.mod

@@ -5,12 +5,13 @@ go 1.16
 require (
 	github.com/BurntSushi/toml v1.1.0
 	github.com/Workiva/go-datastructures v1.0.53
-	github.com/adlio/schema v1.3.0
-	github.com/btcsuite/btcd v0.22.0-beta
+	github.com/adlio/schema v1.3.3
+	github.com/btcsuite/btcd v0.22.1
 	github.com/btcsuite/btcutil v1.0.3-0.20201208143702-a53e38424cce
-	github.com/creachadair/atomicfile v0.2.4
+	github.com/cenkalti/backoff v2.2.1+incompatible // indirect
+	github.com/creachadair/atomicfile v0.2.6
 	github.com/creachadair/taskgroup v0.3.2
-	github.com/creachadair/tomledit v0.0.16
+	github.com/creachadair/tomledit v0.0.22
 	github.com/facebookgo/ensure v0.0.0-20160127193407-b4ab57deab51 // indirect
 	github.com/facebookgo/stack v0.0.0-20160209184415-751773369052 // indirect
 	github.com/facebookgo/subset v0.0.0-20150612182917-8dac2c3c4870 // indirect
@@ -18,34 +19,37 @@ require (
 	github.com/go-kit/kit v0.12.0
 	github.com/gogo/protobuf v1.3.2
 	github.com/golang/protobuf v1.5.2
-	github.com/golangci/golangci-lint v1.45.2
-	github.com/google/go-cmp v0.5.7
+	github.com/golangci/golangci-lint v1.46.0
+	github.com/google/go-cmp v0.5.8
 	github.com/google/orderedcode v0.0.1
 	github.com/google/uuid v1.3.0
 	github.com/gorilla/websocket v1.5.0
+	github.com/gotestyourself/gotestyourself v2.2.0+incompatible // indirect
 	github.com/grpc-ecosystem/go-grpc-middleware v1.3.0
 	github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0
-	github.com/lib/pq v1.10.5
-	github.com/libp2p/go-buffer-pool v0.0.2
+	github.com/lib/pq v1.10.6
+	github.com/libp2p/go-buffer-pool v0.1.0
 	github.com/minio/highwayhash v1.0.2
 	github.com/mroth/weightedrand v0.4.1
 	github.com/oasisprotocol/curve25519-voi v0.0.0-20210609091139-0a56a4bca00b
 	github.com/ory/dockertest v3.3.5+incompatible
-	github.com/prometheus/client_golang v1.12.1
+	github.com/prometheus/client_golang v1.12.2
 	github.com/rcrowley/go-metrics v0.0.0-20200313005456-10cdbea86bc0
 	github.com/rs/cors v1.8.2
-	github.com/rs/zerolog v1.26.1
+	github.com/rs/zerolog v1.27.0
 	github.com/sasha-s/go-deadlock v0.2.1-0.20190427202633-1595213edefa
 	github.com/snikch/goodman v0.0.0-20171125024755-10e37e294daa
-	github.com/spf13/cobra v1.4.0
-	github.com/spf13/viper v1.11.0
-	github.com/stretchr/testify v1.7.1
+	github.com/spf13/cobra v1.5.0
+	github.com/spf13/viper v1.12.0
+	github.com/stretchr/testify v1.8.0
+	github.com/syndtr/goleveldb v1.0.1-0.20200815110645-5c35d600f0ca
 	github.com/tendermint/tm-db v0.6.6
-	github.com/vektra/mockery/v2 v2.10.6
-	golang.org/x/crypto v0.0.0-20220411220226-7b82a4e95df4
-	golang.org/x/net v0.0.0-20220412020605-290c469a71a5
-	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c
-	google.golang.org/grpc v1.45.0
+	github.com/vektra/mockery/v2 v2.14.0
+	golang.org/x/crypto v0.0.0-20220525230936-793ad666bf5e
+	golang.org/x/net v0.0.0-20220617184016-355a448f1bc9
+	golang.org/x/sync v0.0.0-20220513210516-0976fa681c29
+	google.golang.org/grpc v1.47.0
 	gopkg.in/check.v1 v1.0.0-20200902074654-038fdea0a05b // indirect
+	gotest.tools v2.2.0+incompatible // indirect
 	pgregory.net/rapid v0.4.7
 )

go.sum

@@ -1,6 +1,5 @@
 4d63.com/gochecknoglobals v0.1.0 h1:zeZSRqj5yCg28tCkIV/z/lWbwvNm5qnKVS15PI8nhD0=
 4d63.com/gochecknoglobals v0.1.0/go.mod h1:wfdC5ZjKSPr7CybKEcgJhUOgeAQW1+7WcyK8OvUilfo=
-bazil.org/fuse v0.0.0-20200407214033-5883e5a4b512/go.mod h1:FbcW6z/2VytnFDhZfumh8Ss8zxHE6qpMP5sHTRe0EaM=
 bitbucket.org/creachadair/shell v0.0.6/go.mod h1:8Qqi/cYk7vPnsOePHroKXDJYmb5x7ENhtiFtfZq8K+M=
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
@@ -44,9 +43,10 @@ cloud.google.com/go/bigquery v1.8.0/go.mod h1:J5hqkt3O0uAFnINi6JXValWIb1v0goeZM7
 cloud.google.com/go/compute v0.1.0/go.mod h1:GAesmwr110a34z04OlxYkATPBEfVhkymfTBXtfbBFow=
 cloud.google.com/go/compute v1.3.0/go.mod h1:cCZiE1NHEtai4wiufUhW8I8S1JKkAnhnQJWM7YD99wM=
 cloud.google.com/go/compute v1.5.0/go.mod h1:9SMHyhJlzhlkJqrPAc839t2BZFTSk6Jdj6mkzQJeu0M=
+cloud.google.com/go/compute v1.6.0/go.mod h1:T29tfhtVbq1wvAPo0E3+7vhgmkOYeXjhFvz/FMzPu0s=
+cloud.google.com/go/compute v1.6.1/go.mod h1:g85FgpzFvNULZ+S8AYq87axRKuf2Kh7deLqV/jJ3thU=
 cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
 cloud.google.com/go/datastore v1.1.0/go.mod h1:umbIZjpQpHh4hmRpGhH4tLFup+FVzqBi1b3c64qFpCk=
-cloud.google.com/go/firestore v1.6.0/go.mod h1:afJwI0vaXwAG54kI7A//lP/lSPDkQORQuMkv56TxEPU=
 cloud.google.com/go/firestore v1.6.1/go.mod h1:asNXNOzBdyVQmEU+ggO8UPodTkEVFW5Qx+rwHnAz+EY=
 cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
 cloud.google.com/go/pubsub v1.1.0/go.mod h1:EwwdRX2sKPjnvnqCa270oGRyludottCI76h+R3AArQw=
@@ -62,17 +62,18 @@ cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9
 cloud.google.com/go/storage v1.14.0/go.mod h1:GrKmX003DSIwi9o29oFT7YDnHYwZoctc3fOKtUw0Xmo=
 contrib.go.opencensus.io/exporter/stackdriver v0.13.4/go.mod h1:aXENhDJ1Y4lIg4EUaVTwzvYETVNZk10Pu26tevFKLUc=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
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@@ -106,8 +109,8 @@ github.com/VividCortex/gohistogram v1.0.0 h1:6+hBz+qvs0JOrrNhhmR7lFxo5sINxBCGXrd
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@@ -209,33 +215,35 @@ github.com/cncf/xds/go v0.0.0-20211001041855-01bcc9b48dfe/go.mod h1:eXthEFrGJvWH
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@@ -255,8 +263,13 @@ github.com/dgraph-io/ristretto v0.0.3-0.20200630154024-f66de99634de/go.mod h1:KP
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@@ -277,6 +290,7 @@ github.com/envoyproxy/go-control-plane v0.9.9-0.20210217033140-668b12f5399d/go.m
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@@ -298,24 +312,28 @@ github.com/fatih/color v1.13.0 h1:8LOYc1KYPPmyKMuN8QV2DNRWNbLo6LZ0iLs8+mlH53w=
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@@ -360,6 +378,7 @@ github.com/go-zookeeper/zk v1.0.2/go.mod h1:nOB03cncLtlp4t+UAkGSV+9beXP/akpekBwL
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@@ -376,7 +395,6 @@ github.com/golang-sql/sqlexp v0.0.0-20170517235910-f1bb20e5a188/go.mod h1:vXjM/+
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@@ -417,12 +435,12 @@ github.com/golangci/check v0.0.0-20180506172741-cfe4005ccda2 h1:23T5iq8rbUYlhpt5
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@@ -450,8 +468,9 @@ github.com/google/go-cmp v0.5.3/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
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@@ -477,6 +496,8 @@ github.com/google/pprof v0.0.0-20210601050228-01bbb1931b22/go.mod h1:kpwsk12EmLe
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 github.com/ugorji/go/codec v0.0.0-20181204163529-d75b2dcb6bc8/go.mod h1:VFNgLljTbGfSG7qAOspJ7OScBnGdDN/yBr0sguwnwf0=
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 github.com/ultraware/funlen v0.0.3/go.mod h1:Dp4UiAus7Wdb9KUZsYWZEWiRzGuM2kXM1lPbfaF6xhA=
@@ -1067,18 +1106,25 @@ github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyC
 github.com/valyala/fasthttp v1.30.0/go.mod h1:2rsYD01CKFrjjsvFxx75KlEUNpWNBY9JWD3K/7o2Cus=
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-github.com/vektra/mockery/v2 v2.10.6/go.mod h1:8vf4KDDUptfkyypzdHLuE7OE2xA7Gdt60WgIS8PgD+U=
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 github.com/xordataexchange/crypt v0.0.3-0.20170626215501-b2862e3d0a77/go.mod h1:aYKd//L2LvnjZzWKhF00oedf4jCCReLcmhLdhm1A27Q=
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 github.com/yagipy/maintidx v1.0.0/go.mod h1:0qNf/I/CCZXSMhsRsrEPDZ+DkekpKLXAJfsTACwgXLk=
-github.com/yeya24/promlinter v0.1.1-0.20210918184747-d757024714a1 h1:YAaOqqMTstELMMGblt6yJ/fcOt4owSYuw3IttMnKfAM=
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 github.com/yudai/gojsondiff v1.0.0/go.mod h1:AY32+k2cwILAkW1fbgxQ5mUmMiZFgLIV+FBNExI05xg=
 github.com/yudai/golcs v0.0.0-20170316035057-ecda9a501e82/go.mod h1:lgjkn3NuSvDfVJdfcVVdX+jpBxNmX4rDAzaS45IcYoM=
 github.com/yudai/pp v2.0.1+incompatible/go.mod h1:PuxR/8QJ7cyCkFp/aUDS+JY727OFEZkTdatxwunjIkc=
@@ -1092,7 +1138,6 @@ github.com/yuin/goldmark v1.4.1/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1
 github.com/yusufpapurcu/wmi v1.2.2/go.mod h1:SBZ9tNy3G9/m5Oi98Zks0QjeHVDvuK0qfxQmPyzfmi0=
 gitlab.com/bosi/decorder v0.2.1 h1:ehqZe8hI4w7O4b1vgsDZw1YU1PE7iJXrQWFMsocbQ1w=
 gitlab.com/bosi/decorder v0.2.1/go.mod h1:6C/nhLSbF6qZbYD8bRmISBwc6vcWdNsiIBkRvjJFrH0=
-go.etcd.io/bbolt v1.3.2/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
 go.etcd.io/bbolt v1.3.3/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
 go.etcd.io/bbolt v1.3.4/go.mod h1:G5EMThwa9y8QZGBClrRx5EY+Yw9kAhnjy3bSjsnlVTQ=
 go.etcd.io/bbolt v1.3.6 h1:/ecaJf0sk1l4l6V4awd65v2C3ILy7MSj+s/x1ADCIMU=
@@ -1101,13 +1146,17 @@ go.etcd.io/etcd v0.0.0-20200513171258-e048e166ab9c/go.mod h1:xCI7ZzBfRuGgBXyXO6y
 go.etcd.io/etcd/api/v3 v3.5.0/go.mod h1:cbVKeC6lCfl7j/8jBhAK6aIYO9XOjdptoxU/nLQcPvs=
 go.etcd.io/etcd/api/v3 v3.5.1/go.mod h1:cbVKeC6lCfl7j/8jBhAK6aIYO9XOjdptoxU/nLQcPvs=
 go.etcd.io/etcd/api/v3 v3.5.2/go.mod h1:5GB2vv4A4AOn3yk7MftYGHkUfGtDHnEraIjym4dYz5A=
+go.etcd.io/etcd/api/v3 v3.5.4/go.mod h1:5GB2vv4A4AOn3yk7MftYGHkUfGtDHnEraIjym4dYz5A=
 go.etcd.io/etcd/client/pkg/v3 v3.5.0/go.mod h1:IJHfcCEKxYu1Os13ZdwCwIUTUVGYTSAM3YSwc9/Ac1g=
 go.etcd.io/etcd/client/pkg/v3 v3.5.1/go.mod h1:IJHfcCEKxYu1Os13ZdwCwIUTUVGYTSAM3YSwc9/Ac1g=
 go.etcd.io/etcd/client/pkg/v3 v3.5.2/go.mod h1:IJHfcCEKxYu1Os13ZdwCwIUTUVGYTSAM3YSwc9/Ac1g=
+go.etcd.io/etcd/client/pkg/v3 v3.5.4/go.mod h1:IJHfcCEKxYu1Os13ZdwCwIUTUVGYTSAM3YSwc9/Ac1g=
 go.etcd.io/etcd/client/v2 v2.305.0/go.mod h1:h9puh54ZTgAKtEbut2oe9P4L/oqKCVB6xsXlzd7alYQ=
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+go.etcd.io/etcd/client/v2 v2.305.4/go.mod h1:Ud+VUwIi9/uQHOMA+4ekToJ12lTxlv0zB/+DHwTGEbU=
 go.etcd.io/etcd/client/v3 v3.5.0/go.mod h1:AIKXXVX/DQXtfTEqBryiLTUXwON+GuvO6Z7lLS/oTh0=
+go.etcd.io/etcd/client/v3 v3.5.4/go.mod h1:ZaRkVgBZC+L+dLCjTcF1hRXpgZXQPOvnA/Ak/gq3kiY=
 go.mozilla.org/mozlog v0.0.0-20170222151521-4bb13139d403/go.mod h1:jHoPAGnDrCy6kaI2tAze5Prf0Nr0w/oNkROt2lw3n3o=
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 go.opencensus.io v0.22.0/go.mod h1:+kGneAE2xo2IficOXnaByMWTGM9T73dGwxeWcUqIpI8=
@@ -1158,11 +1207,10 @@ golang.org/x/crypto v0.0.0-20210817164053-32db794688a5/go.mod h1:GvvjBRRGRdwPK5y
 golang.org/x/crypto v0.0.0-20210915214749-c084706c2272/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/crypto v0.0.0-20211108221036-ceb1ce70b4fa/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
-golang.org/x/crypto v0.0.0-20211215165025-cf75a172585e/go.mod h1:P+XmwS30IXTQdn5tA2iutPOUgjI07+tq3H3K9MVA1s8=
-golang.org/x/crypto v0.0.0-20220112180741-5e0467b6c7ce/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
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 golang.org/x/exp v0.0.0-20180321215751-8460e604b9de/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20180807140117-3d87b88a115f/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
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@@ -1176,7 +1224,10 @@ golang.org/x/exp v0.0.0-20191227195350-da58074b4299/go.mod h1:2RIsYlXP63K8oxa1u0
 golang.org/x/exp v0.0.0-20200119233911-0405dc783f0a/go.mod h1:2RIsYlXP63K8oxa1u096TMicItID8zy7Y6sNkU49FU4=
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 golang.org/x/exp v0.0.0-20200331195152-e8c3332aa8e5/go.mod h1:4M0jN8W1tt0AVLNr8HDosyJCDCDuyL9N9+3m7wDWgKw=
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@@ -1205,8 +1256,9 @@ golang.org/x/mod v0.4.1/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
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@@ -1220,7 +1272,6 @@ golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn
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@@ -1267,12 +1318,14 @@ golang.org/x/net v0.0.0-20210813160813-60bc85c4be6d/go.mod h1:9nx3DQGgdP8bBQD5qx
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@@ -1304,8 +1357,9 @@ golang.org/x/sync v0.0.0-20200317015054-43a5402ce75a/go.mod h1:RxMgew5VJxzue5/jJ
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@@ -1339,7 +1393,6 @@ golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7w
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@@ -1362,8 +1415,8 @@ golang.org/x/sys v0.0.0-20200615200032-f1bc736245b1/go.mod h1:h1NjWce9XRLGQEsW7w
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@@ -1383,7 +1436,6 @@ golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7w
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@@ -1393,33 +1445,43 @@ golang.org/x/sys v0.0.0-20210616094352-59db8d763f22/go.mod h1:oPkhp1MJrh7nUepCBc
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@@ -1443,6 +1505,7 @@ golang.org/x/tools v0.0.0-20181030221726-6c7e314b6563/go.mod h1:n7NCudcB/nEzxVGm
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@@ -1456,6 +1519,7 @@ golang.org/x/tools v0.0.0-20190506145303-2d16b83fe98c/go.mod h1:RgjU9mgBXZiqYHBn
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@@ -1517,7 +1581,6 @@ golang.org/x/tools v0.0.0-20201022035929-9cf592e881e9/go.mod h1:emZCQorbCU4vsT4f
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@@ -1537,14 +1600,16 @@ golang.org/x/tools v0.1.7/go.mod h1:LGqMHiF4EqQNHR1JncWGqT5BVaXmza+X+BDGol+dOxo=
 golang.org/x/tools v0.1.8/go.mod h1:nABZi5QlRsZVlzPpHl034qft6wpY4eDcsTt5AaioBiU=
 golang.org/x/tools v0.1.9-0.20211228192929-ee1ca4ffc4da/go.mod h1:nABZi5QlRsZVlzPpHl034qft6wpY4eDcsTt5AaioBiU=
 golang.org/x/tools v0.1.9/go.mod h1:nABZi5QlRsZVlzPpHl034qft6wpY4eDcsTt5AaioBiU=
-golang.org/x/tools v0.1.10 h1:QjFRCZxdOhBJ/UNgnBZLbNV13DlbnK0quyivTnXJM20=
 golang.org/x/tools v0.1.10/go.mod h1:Uh6Zz+xoGYZom868N8YTex3t7RhtHDBrE8Gzo9bV56E=
+golang.org/x/tools v0.1.11-0.20220316014157-77aa08bb151a/go.mod h1:Uh6Zz+xoGYZom868N8YTex3t7RhtHDBrE8Gzo9bV56E=
+golang.org/x/tools v0.1.11 h1:loJ25fNOEhSXfHrpoGj91eCUThwdNX6u24rO1xnNteY=
+golang.org/x/tools v0.1.11/go.mod h1:SgwaegtQh8clINPpECJMqnxLv9I09HLqnW3RMqW0CA4=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.org/x/xerrors v0.0.0-20220411194840-2f41105eb62f h1:GGU+dLjvlC3qDwqYgL6UgRmHXhOOgns0bZu2Ty5mm6U=
 golang.org/x/xerrors v0.0.0-20220411194840-2f41105eb62f/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20220517211312-f3a8303e98df/go.mod h1:K8+ghG5WaK9qNqU5K3HdILfMLy1f3aNYFI/wnl100a8=
 gonum.org/v1/gonum v0.0.0-20180816165407-929014505bf4/go.mod h1:Y+Yx5eoAFn32cQvJDxZx5Dpnq+c3wtXuadVZAcxbbBo=
 gonum.org/v1/gonum v0.8.2/go.mod h1:oe/vMfY3deqTw+1EZJhuvEW2iwGF1bW9wwu7XCu0+v0=
 gonum.org/v1/netlib v0.0.0-20190313105609-8cb42192e0e0/go.mod h1:wa6Ws7BG/ESfp6dHfk7C6KdzKA7wR7u/rKwOGE66zvw=
@@ -1587,6 +1652,9 @@ google.golang.org/api v0.67.0/go.mod h1:ShHKP8E60yPsKNw/w8w+VYaj9H6buA5UqDp8dhbQ
 google.golang.org/api v0.70.0/go.mod h1:Bs4ZM2HGifEvXwd50TtW70ovgJffJYw2oRCOFU/SkfA=
 google.golang.org/api v0.71.0/go.mod h1:4PyU6e6JogV1f9eA4voyrTY2batOLdgZ5qZ5HOCc4j8=
 google.golang.org/api v0.74.0/go.mod h1:ZpfMZOVRMywNyvJFeqL9HRWBgAuRfSjJFpe9QtRRyDs=
+google.golang.org/api v0.75.0/go.mod h1:pU9QmyHLnzlpar1Mjt4IbapUCy8J+6HD6GeELN69ljA=
+google.golang.org/api v0.78.0/go.mod h1:1Sg78yoMLOhlQTeF+ARBoytAcH1NNyyl390YMy6rKmw=
+google.golang.org/api v0.81.0/go.mod h1:FA6Mb/bZxj706H2j+j2d6mHEEaHBmbbWnkfvmorOCko=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
 google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
 google.golang.org/appengine v1.5.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
@@ -1675,12 +1743,17 @@ google.golang.org/genproto v0.0.0-20220222213610-43724f9ea8cf/go.mod h1:kGP+zUP2
 google.golang.org/genproto v0.0.0-20220304144024-325a89244dc8/go.mod h1:kGP+zUP2Ddo0ayMi4YuN7C3WZyJvGLZRh8Z5wnAqvEI=
 google.golang.org/genproto v0.0.0-20220310185008-1973136f34c6/go.mod h1:kGP+zUP2Ddo0ayMi4YuN7C3WZyJvGLZRh8Z5wnAqvEI=
 google.golang.org/genproto v0.0.0-20220324131243-acbaeb5b85eb/go.mod h1:hAL49I2IFola2sVEjAn7MEwsja0xp51I0tlGAf9hz4E=
-google.golang.org/genproto v0.0.0-20220407144326-9054f6ed7bac h1:qSNTkEN+L2mvWcLgJOR+8bdHX9rN/IdU3A1Ghpfb1Rg=
 google.golang.org/genproto v0.0.0-20220407144326-9054f6ed7bac/go.mod h1:8w6bsBMX6yCPbAVTeqQHvzxW0EIFigd5lZyahWgyfDo=
+google.golang.org/genproto v0.0.0-20220413183235-5e96e2839df9/go.mod h1:8w6bsBMX6yCPbAVTeqQHvzxW0EIFigd5lZyahWgyfDo=
+google.golang.org/genproto v0.0.0-20220414192740-2d67ff6cf2b4/go.mod h1:8w6bsBMX6yCPbAVTeqQHvzxW0EIFigd5lZyahWgyfDo=
+google.golang.org/genproto v0.0.0-20220421151946-72621c1f0bd3/go.mod h1:8w6bsBMX6yCPbAVTeqQHvzxW0EIFigd5lZyahWgyfDo=
+google.golang.org/genproto v0.0.0-20220429170224-98d788798c3e/go.mod h1:8w6bsBMX6yCPbAVTeqQHvzxW0EIFigd5lZyahWgyfDo=
+google.golang.org/genproto v0.0.0-20220505152158-f39f71e6c8f3/go.mod h1:RAyBrSAP7Fh3Nc84ghnVLDPuV51xc9agzmm4Ph6i0Q4=
+google.golang.org/genproto v0.0.0-20220519153652-3a47de7e79bd h1:e0TwkXOdbnH/1x5rc5MZ/VYyiZ4v+RdVfrGMqEwT68I=
+google.golang.org/genproto v0.0.0-20220519153652-3a47de7e79bd/go.mod h1:RAyBrSAP7Fh3Nc84ghnVLDPuV51xc9agzmm4Ph6i0Q4=
 google.golang.org/grpc v1.8.0/go.mod h1:yo6s7OP7yaDglbqo1J04qKzAhqBH6lvTonzMVmEdcZw=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
-google.golang.org/grpc v1.21.0/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
 google.golang.org/grpc v1.21.1/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
 google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
 google.golang.org/grpc v1.23.1/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
@@ -1709,10 +1782,12 @@ google.golang.org/grpc v1.39.1/go.mod h1:PImNr+rS9TWYb2O4/emRugxiyHZ5JyHW5F+RPnD
 google.golang.org/grpc v1.40.0/go.mod h1:ogyxbiOoUXAkP+4+xa6PZSE9DZgIHtSpzjDTB9KAK34=
 google.golang.org/grpc v1.40.1/go.mod h1:ogyxbiOoUXAkP+4+xa6PZSE9DZgIHtSpzjDTB9KAK34=
 google.golang.org/grpc v1.42.0/go.mod h1:k+4IHHFw41K8+bbowsex27ge2rCb65oeWqe4jJ590SU=
-google.golang.org/grpc v1.43.0/go.mod h1:k+4IHHFw41K8+bbowsex27ge2rCb65oeWqe4jJ590SU=
 google.golang.org/grpc v1.44.0/go.mod h1:k+4IHHFw41K8+bbowsex27ge2rCb65oeWqe4jJ590SU=
-google.golang.org/grpc v1.45.0 h1:NEpgUqV3Z+ZjkqMsxMg11IaDrXY4RY6CQukSGK0uI1M=
 google.golang.org/grpc v1.45.0/go.mod h1:lN7owxKUQEqMfSyQikvvk5tf/6zMPsrK+ONuO11+0rQ=
+google.golang.org/grpc v1.46.0/go.mod h1:vN9eftEi1UMyUsIF80+uQXhHjbXYbm0uXoFCACuMGWk=
+google.golang.org/grpc v1.46.2/go.mod h1:vN9eftEi1UMyUsIF80+uQXhHjbXYbm0uXoFCACuMGWk=
+google.golang.org/grpc v1.47.0 h1:9n77onPX5F3qfFCqjy9dhn8PbNQsIKeVU04J9G7umt8=
+google.golang.org/grpc v1.47.0/go.mod h1:vN9eftEi1UMyUsIF80+uQXhHjbXYbm0uXoFCACuMGWk=
 google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.1.0/go.mod h1:6Kw0yEErY5E/yWrBtf03jp27GLLJujG4z/JK95pnjjw=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
@@ -1741,11 +1816,10 @@ gopkg.in/cheggaaa/pb.v1 v1.0.28/go.mod h1:V/YB90LKu/1FcN3WVnfiiE5oMCibMjukxqG/qS
 gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
 gopkg.in/gcfg.v1 v1.2.3/go.mod h1:yesOnuUOFQAhST5vPY4nbZsb/huCgGGXlipJsBn0b3o=
-gopkg.in/ini.v1 v1.63.2/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
 gopkg.in/ini.v1 v1.66.2/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
-gopkg.in/ini.v1 v1.66.3/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
-gopkg.in/ini.v1 v1.66.4 h1:SsAcf+mM7mRZo2nJNGt8mZCjG8ZRaNGMURJw7BsIST4=
 gopkg.in/ini.v1 v1.66.4/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
+gopkg.in/ini.v1 v1.66.6 h1:LATuAqN/shcYAOkv3wl2L4rkaKqkcgTBQjOyYDvcPKI=
+gopkg.in/ini.v1 v1.66.6/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
 gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
@@ -1762,10 +1836,14 @@ gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
 gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gotest.tools v2.2.0+incompatible h1:VsBPFP1AI068pPrMxtb/S8Zkgf9xEmTLJjfM+P5UIEo=
 gotest.tools v2.2.0+incompatible/go.mod h1:DsYFclhRJ6vuDpmuTbkuFWG+y2sxOXAzmJt81HFBacw=
+gotest.tools/v3 v3.0.2/go.mod h1:3SzNCllyD9/Y+b5r9JIKQ474KzkZyqLqEfYqMsX94Bk=
+gotest.tools/v3 v3.2.0/go.mod h1:Mcr9QNxkg0uMvy/YElmo4SpXgJKWgQvYrT7Kw5RzJ1A=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
@@ -1773,10 +1851,10 @@ honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWh
 honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
 honnef.co/go/tools v0.0.1-2020.1.3/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
 honnef.co/go/tools v0.0.1-2020.1.4/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
-honnef.co/go/tools v0.2.2 h1:MNh1AVMyVX23VUHE2O27jm6lNj3vjO5DexS4A1xvnzk=
-honnef.co/go/tools v0.2.2/go.mod h1:lPVVZ2BS5TfnjLyizF7o7hv7j9/L+8cZY2hLyjP9cGY=
-mvdan.cc/gofumpt v0.3.0 h1:kTojdZo9AcEYbQYhGuLf/zszYthRdhDNDUi2JKTxas4=
-mvdan.cc/gofumpt v0.3.0/go.mod h1:0+VyGZWleeIj5oostkOex+nDBA0eyavuDnDusAJ8ylo=
+honnef.co/go/tools v0.3.1 h1:1kJlrWJLkaGXgcaeosRXViwviqjI7nkBvU2+sZW0AYc=
+honnef.co/go/tools v0.3.1/go.mod h1:vlRD9XErLMGT+mDuofSr0mMMquscM/1nQqtRSsh6m70=
+mvdan.cc/gofumpt v0.3.1 h1:avhhrOmv0IuvQVK7fvwV91oFSGAk5/6Po8GXTzICeu8=
+mvdan.cc/gofumpt v0.3.1/go.mod h1:w3ymliuxvzVx8DAutBnVyDqYb1Niy/yCJt/lk821YCE=
 mvdan.cc/interfacer v0.0.0-20180901003855-c20040233aed h1:WX1yoOaKQfddO/mLzdV4wptyWgoH/6hwLs7QHTixo0I=
 mvdan.cc/interfacer v0.0.0-20180901003855-c20040233aed/go.mod h1:Xkxe497xwlCKkIaQYRfC7CSLworTXY9RMqwhhCm+8Nc=
 mvdan.cc/lint v0.0.0-20170908181259-adc824a0674b h1:DxJ5nJdkhDlLok9K6qO+5290kphDJbHOQO1DFFFTeBo=

internal/blocksync/v0/reactor.go

@@ -544,8 +544,15 @@ FOR_LOOP:
 			// first.Hash() doesn't verify the tx contents, so MakePartSet() is
 			// currently necessary.
 			err := state.Validators.VerifyCommitLight(chainID, firstID, first.Height, second.LastCommit)
+
+			if err == nil {
+				// validate the block before we persist it
+				err = r.blockExec.ValidateBlock(state, first)
+			}
+
+			// If either of the checks failed we log the error and request for a new block
+			// at that height
 			if err != nil {
-				err = fmt.Errorf("invalid last commit: %w", err)
 				r.Logger.Error(
 					err.Error(),
 					"last_commit", second.LastCommit,
@@ -570,37 +577,34 @@ FOR_LOOP:
 				}
 
 				continue FOR_LOOP
-			} else {
-				r.pool.PopRequest()
+			}
 
-				// TODO: batch saves so we do not persist to disk every block
-				r.store.SaveBlock(first, firstParts, second.LastCommit)
+			r.pool.PopRequest()
 
-				var err error
+			// TODO: batch saves so we do not persist to disk every block
+			r.store.SaveBlock(first, firstParts, second.LastCommit)
 
-				// TODO: Same thing for app - but we would need a way to get the hash
-				// without persisting the state.
-				state, err = r.blockExec.ApplyBlock(state, firstID, first)
-				if err != nil {
-					// TODO: This is bad, are we zombie?
-					panic(fmt.Sprintf("failed to process committed block (%d:%X): %v", first.Height, first.Hash(), err))
-				}
+			// TODO: Same thing for app - but we would need a way to get the hash
+			// without persisting the state.
+			state, err = r.blockExec.ApplyBlock(state, firstID, first)
+			if err != nil {
+				panic(fmt.Sprintf("failed to process committed block (%d:%X): %v", first.Height, first.Hash(), err))
+			}
 
-				r.metrics.RecordConsMetrics(first)
+			r.metrics.RecordConsMetrics(first)
 
-				blocksSynced++
+			blocksSynced++
 
-				if blocksSynced%100 == 0 {
-					lastRate = 0.9*lastRate + 0.1*(100/time.Since(lastHundred).Seconds())
-					r.Logger.Info(
-						"block sync rate",
-						"height", r.pool.height,
-						"max_peer_height", r.pool.MaxPeerHeight(),
-						"blocks/s", lastRate,
-					)
+			if blocksSynced%100 == 0 {
+				lastRate = 0.9*lastRate + 0.1*(100/time.Since(lastHundred).Seconds())
+				r.Logger.Info(
+					"block sync rate",
+					"height", r.pool.height,
+					"max_peer_height", r.pool.MaxPeerHeight(),
+					"blocks/s", lastRate,
+				)
 
-					lastHundred = time.Now()
-				}
+				lastHundred = time.Now()
 			}
 
 			continue FOR_LOOP

internal/consensus/mocks/cons_sync_reactor.go

@@ -26,3 +26,18 @@ func (_m *ConsSyncReactor) SetStateSyncingMetrics(_a0 float64) {
 func (_m *ConsSyncReactor) SwitchToConsensus(_a0 state.State, _a1 bool) {
 	_m.Called(_a0, _a1)
 }
+
+type mockConstructorTestingTNewConsSyncReactor interface {
+	mock.TestingT
+	Cleanup(func())
+}
+
+// NewConsSyncReactor creates a new instance of ConsSyncReactor. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
+func NewConsSyncReactor(t mockConstructorTestingTNewConsSyncReactor) *ConsSyncReactor {
+	mock := &ConsSyncReactor{}
+	mock.Mock.Test(t)
+
+	t.Cleanup(func() { mock.AssertExpectations(t) })
+
+	return mock
+}

internal/consensus/reactor.go

@@ -544,6 +544,8 @@ func (r *Reactor) gossipDataForCatchup(rs *cstypes.RoundState, prs *cstypes.Peer
 
 func (r *Reactor) gossipDataRoutine(ps *PeerState) {
 	logger := r.Logger.With("peer", ps.peerID)
+	timer := time.NewTimer(r.state.config.PeerGossipSleepDuration)
+	defer timer.Stop()
 
 OUTER_LOOP:
 	for {
@@ -551,6 +553,8 @@ OUTER_LOOP:
 			return
 		}
 
+		timer.Reset(r.state.config.PeerGossipSleepDuration)
+
 		select {
 		case <-r.closeCh:
 			return
@@ -558,8 +562,7 @@ OUTER_LOOP:
 			// The peer is marked for removal via a PeerUpdate as the doneCh was
 			// explicitly closed to signal we should exit.
 			return
-
-		default:
+		case <-timer.C:
 		}
 
 		rs := r.getRoundState()
@@ -605,7 +608,6 @@ OUTER_LOOP:
 						"blockstoreBase", blockStoreBase,
 						"blockstoreHeight", r.state.blockStore.Height(),
 					)
-					time.Sleep(r.state.config.PeerGossipSleepDuration)
 				} else {
 					ps.InitProposalBlockParts(blockMeta.BlockID.PartSetHeader)
 				}
@@ -621,7 +623,6 @@ OUTER_LOOP:
 
 		// if height and round don't match, sleep
 		if (rs.Height != prs.Height) || (rs.Round != prs.Round) {
-			time.Sleep(r.state.config.PeerGossipSleepDuration)
 			continue OUTER_LOOP
 		}
 
@@ -676,12 +677,8 @@ OUTER_LOOP:
 				}:
 				}
 			}
-
-			continue OUTER_LOOP
 		}
 
-		// nothing to do -- sleep
-		time.Sleep(r.state.config.PeerGossipSleepDuration)
 		continue OUTER_LOOP
 	}
 }

internal/consensus/ticker.go

@@ -119,9 +119,9 @@ func (t *timeoutTicker) timeoutRoutine() {
 			// NOTE time.Timer allows duration to be non-positive
 			ti = newti
 			t.timer.Reset(ti.Duration)
-			t.Logger.Debug("Scheduled timeout", "dur", ti.Duration, "height", ti.Height, "round", ti.Round, "step", ti.Step)
+			t.Logger.Debug("Internal state machine timeout scheduled", "duration", ti.Duration, "height", ti.Height, "round", ti.Round, "step", ti.Step)
 		case <-t.timer.C:
-			t.Logger.Info("Timed out", "dur", ti.Duration, "height", ti.Height, "round", ti.Round, "step", ti.Step)
+			t.Logger.Debug("Internal state machine timeout elapsed ", "duration", ti.Duration, "height", ti.Height, "round", ti.Round, "step", ti.Step)
 			// go routine here guarantees timeoutRoutine doesn't block.
 			// Determinism comes from playback in the receiveRoutine.
 			// We can eliminate it by merging the timeoutRoutine into receiveRoutine

internal/evidence/mocks/block_store.go

@@ -57,3 +57,18 @@ func (_m *BlockStore) LoadBlockMeta(height int64) *types.BlockMeta {
 
 	return r0
 }
+
+type mockConstructorTestingTNewBlockStore interface {
+	mock.TestingT
+	Cleanup(func())
+}
+
+// NewBlockStore creates a new instance of BlockStore. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
+func NewBlockStore(t mockConstructorTestingTNewBlockStore) *BlockStore {
+	mock := &BlockStore{}
+	mock.Mock.Test(t)
+
+	t.Cleanup(func() { mock.AssertExpectations(t) })
+
+	return mock
+}

internal/mempool/v0/clist_mempool.go

@@ -242,17 +242,13 @@ func (mem *CListMempool) CheckTx(
 		// so we only record the sender for txs still in the mempool.
 		if e, ok := mem.txsMap.Load(tx.Key()); ok {
 			memTx := e.(*clist.CElement).Value.(*mempoolTx)
-			_, loaded := memTx.senders.LoadOrStore(txInfo.SenderID, true)
+			memTx.senders.LoadOrStore(txInfo.SenderID, true)
 			// TODO: consider punishing peer for dups,
 			// its non-trivial since invalid txs can become valid,
 			// but they can spam the same tx with little cost to them atm.
-			if loaded {
-				return types.ErrTxInCache
-			}
 		}
 
-		mem.logger.Debug("tx exists already in cache", "tx_hash", tx.Hash())
-		return nil
+		return types.ErrTxInCache
 	}
 
 	if ctx == nil {

internal/mempool/v0/clist_mempool_test.go

@@ -200,7 +200,7 @@ func TestMempoolUpdate(t *testing.T) {
 		err := mp.Update(1, []types.Tx{[]byte{0x01}}, abciResponses(1, abci.CodeTypeOK), nil, nil)
 		require.NoError(t, err)
 		err = mp.CheckTx(context.Background(), []byte{0x01}, nil, mempool.TxInfo{})
-		require.NoError(t, err)
+		assert.Error(t, err)
 	}
 
 	// 2. Removes valid txs from the mempool
@@ -305,11 +305,15 @@ func TestMempool_KeepInvalidTxsInCache(t *testing.T) {
 
 		// a must be added to the cache
 		err = mp.CheckTx(context.Background(), a, nil, mempool.TxInfo{})
-		require.NoError(t, err)
+		if assert.Error(t, err) {
+			assert.Equal(t, types.ErrTxInCache, err)
+		}
 
 		// b must remain in the cache
 		err = mp.CheckTx(context.Background(), b, nil, mempool.TxInfo{})
-		require.NoError(t, err)
+		if assert.Error(t, err) {
+			assert.Equal(t, types.ErrTxInCache, err)
+		}
 	}
 
 	// 2. An invalid transaction must remain in the cache

internal/mempool/v0/reactor.go

@@ -6,7 +6,6 @@ import (
 	"fmt"
 	"runtime/debug"
 	"sync"
-	"time"
 
 	"github.com/tendermint/tendermint/config"
 	"github.com/tendermint/tendermint/internal/libs/clist"
@@ -24,13 +23,6 @@ var (
 	_ p2p.Wrapper     = (*protomem.Message)(nil)
 )
 
-// PeerManager defines the interface contract required for getting necessary
-// peer information. This should eventually be replaced with a message-oriented
-// approach utilizing the p2p stack.
-type PeerManager interface {
-	GetHeight(types.NodeID) int64
-}
-
 // Reactor implements a service that contains mempool of txs that are broadcasted
 // amongst peers. It maintains a map from peer ID to counter, to prevent gossiping
 // txs to the peers you received it from.
@@ -41,11 +33,6 @@ type Reactor struct {
 	mempool *CListMempool
 	ids     *mempool.MempoolIDs
 
-	// XXX: Currently, this is the only way to get information about a peer. Ideally,
-	// we rely on message-oriented communication to get necessary peer data.
-	// ref: https://github.com/tendermint/tendermint/issues/5670
-	peerMgr PeerManager
-
 	mempoolCh   *p2p.Channel
 	peerUpdates *p2p.PeerUpdates
 	closeCh     chan struct{}
@@ -62,7 +49,6 @@ type Reactor struct {
 func NewReactor(
 	logger log.Logger,
 	cfg *config.MempoolConfig,
-	peerMgr PeerManager,
 	mp *CListMempool,
 	mempoolCh *p2p.Channel,
 	peerUpdates *p2p.PeerUpdates,
@@ -70,7 +56,6 @@ func NewReactor(
 
 	r := &Reactor{
 		cfg:          cfg,
-		peerMgr:      peerMgr,
 		mempool:      mp,
 		ids:          mempool.NewMempoolIDs(),
 		mempoolCh:    mempoolCh,
@@ -171,6 +156,15 @@ func (r *Reactor) handleMempoolMessage(envelope p2p.Envelope) error {
 
 		for _, tx := range protoTxs {
 			if err := r.mempool.CheckTx(context.Background(), types.Tx(tx), nil, txInfo); err != nil {
+				if errors.Is(err, types.ErrTxInCache) {
+					// if the tx is in the cache,
+					// then we've been gossiped a
+					// Tx that we've already
+					// got. Gossip should be
+					// smarter, but it's not a
+					// problem.
+					continue
+				}
 				logger.Error("checktx failed for tx", "tx", fmt.Sprintf("%X", types.Tx(tx).Hash()), "err", err)
 			}
 		}
@@ -355,15 +349,6 @@ func (r *Reactor) broadcastTxRoutine(peerID types.NodeID, closer *tmsync.Closer)
 
 		memTx := next.Value.(*mempoolTx)
 
-		if r.peerMgr != nil {
-			height := r.peerMgr.GetHeight(peerID)
-			if height > 0 && height < memTx.Height()-1 {
-				// allow for a lag of one block
-				time.Sleep(mempool.PeerCatchupSleepIntervalMS * time.Millisecond)
-				continue
-			}
-		}
-
 		// NOTE: Transaction batching was disabled due to:
 		// https://github.com/tendermint/tendermint/issues/5796
 

internal/mempool/v0/reactor_test.go

@@ -70,7 +70,6 @@ func setup(t *testing.T, config *config.MempoolConfig, numNodes int, chBuf uint)
 		rts.reactors[nodeID] = NewReactor(
 			rts.logger.With("nodeID", nodeID),
 			config,
-			rts.network.Nodes[nodeID].PeerManager,
 			mempool,
 			rts.mempoolChnnels[nodeID],
 			rts.peerUpdates[nodeID],

internal/mempool/v1/mempool_test.go

@@ -95,6 +95,18 @@ func setup(t testing.TB, cacheSize int, options ...TxMempoolOption) *TxMempool {
 	return NewTxMempool(log.TestingLogger().With("test", t.Name()), cfg.Mempool, appConnMem, 0, options...)
 }
 
+// mustCheckTx invokes txmp.CheckTx for the given transaction and waits until
+// its callback has finished executing. It fails t if CheckTx fails.
+func mustCheckTx(t *testing.T, txmp *TxMempool, spec string) {
+	done := make(chan struct{})
+	if err := txmp.CheckTx(context.Background(), []byte(spec), func(*abci.Response) {
+		close(done)
+	}, mempool.TxInfo{}); err != nil {
+		t.Fatalf("CheckTx for %q failed: %v", spec, err)
+	}
+	<-done
+}
+
 func checkTxs(t *testing.T, txmp *TxMempool, numTxs int, peerID uint16) []testTx {
 	txs := make([]testTx, numTxs)
 	txInfo := mempool.TxInfo{SenderID: peerID}
@@ -196,6 +208,76 @@ func TestTxMempool_Size(t *testing.T) {
 	require.Equal(t, int64(2850), txmp.SizeBytes())
 }
 
+func TestTxMempool_Eviction(t *testing.T) {
+	txmp := setup(t, 0)
+	txmp.config.Size = 5
+	txmp.config.MaxTxsBytes = 60
+	txExists := func(spec string) bool {
+		txmp.Lock()
+		defer txmp.Unlock()
+		key := types.Tx(spec).Key()
+		_, ok := txmp.txByKey[key]
+		return ok
+	}
+
+	// A transaction bigger than the mempool should be rejected even when there
+	// are slots available.
+	mustCheckTx(t, txmp, "big=0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef=1")
+	require.Equal(t, 0, txmp.Size())
+
+	// Nearly-fill the mempool with a low-priority transaction, to show that it
+	// is evicted even when slots are available for a higher-priority tx.
+	const bigTx = "big=0123456789abcdef0123456789abcdef0123456789abcdef01234=2"
+	mustCheckTx(t, txmp, bigTx)
+	require.Equal(t, 1, txmp.Size()) // bigTx is the only element
+	require.True(t, txExists(bigTx))
+	require.Equal(t, int64(len(bigTx)), txmp.SizeBytes())
+
+	// The next transaction should evict bigTx, because it is higher priority
+	// but does not fit on size.
+	mustCheckTx(t, txmp, "key1=0000=25")
+	require.True(t, txExists("key1=0000=25"))
+	require.False(t, txExists(bigTx))
+	require.Equal(t, int64(len("key1=0000=25")), txmp.SizeBytes())
+
+	// Now fill up the rest of the slots with other transactions.
+	mustCheckTx(t, txmp, "key2=0001=5")
+	mustCheckTx(t, txmp, "key3=0002=10")
+	mustCheckTx(t, txmp, "key4=0003=3")
+	mustCheckTx(t, txmp, "key5=0004=3")
+
+	// A new transaction with low priority should be discarded.
+	mustCheckTx(t, txmp, "key6=0005=1")
+	require.False(t, txExists("key6=0005=1"))
+
+	// A new transaction with higher priority should evict key5, which is the
+	// newest of the two transactions with lowest priority.
+	mustCheckTx(t, txmp, "key7=0006=7")
+	require.True(t, txExists("key7=0006=7"))  // new transaction added
+	require.False(t, txExists("key5=0004=3")) // newest low-priority tx evicted
+	require.True(t, txExists("key4=0003=3"))  // older low-priority tx retained
+
+	// Another new transaction evicts the other low-priority element.
+	mustCheckTx(t, txmp, "key8=0007=20")
+	require.True(t, txExists("key8=0007=20"))
+	require.False(t, txExists("key4=0003=3"))
+
+	// Now the lowest-priority tx is 5, so that should be the next to go.
+	mustCheckTx(t, txmp, "key9=0008=9")
+	require.True(t, txExists("key9=0008=9"))
+	require.False(t, txExists("k3y2=0001=5"))
+
+	// Add a transaction that requires eviction of multiple lower-priority
+	// entries, in order to fit the size of the element.
+	mustCheckTx(t, txmp, "key10=0123456789abcdef=11") // evict 10, 9, 7; keep 25, 20, 11
+	require.True(t, txExists("key1=0000=25"))
+	require.True(t, txExists("key8=0007=20"))
+	require.True(t, txExists("key10=0123456789abcdef=11"))
+	require.False(t, txExists("key3=0002=10"))
+	require.False(t, txExists("key9=0008=9"))
+	require.False(t, txExists("key7=0006=7"))
+}
+
 func TestTxMempool_Flush(t *testing.T) {
 	txmp := setup(t, 0)
 	txs := checkTxs(t, txmp, 100, 0)
@@ -438,6 +520,51 @@ func TestTxMempool_ConcurrentTxs(t *testing.T) {
 	require.Zero(t, txmp.SizeBytes())
 }
 
+func TestTxMempool_ExpiredTxs_Timestamp(t *testing.T) {
+	txmp := setup(t, 50)
+	txmp.config.TTLDuration = 5 * time.Millisecond
+
+	added1 := checkTxs(t, txmp, 25, 0)
+	require.Equal(t, len(added1), txmp.Size())
+
+	// Wait a while, then add some more transactions that should not be expired
+	// when the first batch TTLs out.
+	//
+	// ms: 0   1   2   3   4   5   6
+	//     ^           ^       ^   ^
+	//     |           |       |   +-- Update (triggers pruning)
+	//     |           |       +------ first batch expires
+	//     |           +-------------- second batch added
+	//     +-------------------------- first batch added
+	//
+	// The exact intervals are not important except that the delta should be
+	// large relative to the cost of CheckTx (ms vs. ns is fine here).
+	time.Sleep(3 * time.Millisecond)
+	added2 := checkTxs(t, txmp, 25, 1)
+
+	// Wait a while longer, so that the first batch will expire.
+	time.Sleep(3 * time.Millisecond)
+
+	// Trigger an update so that pruning will occur.
+	txmp.Lock()
+	defer txmp.Unlock()
+	require.NoError(t, txmp.Update(txmp.height+1, nil, nil, nil, nil))
+
+	// All the transactions in the original set should have been purged.
+	for _, tx := range added1 {
+		if _, ok := txmp.txByKey[tx.tx.Key()]; ok {
+			t.Errorf("Transaction %X should have been purged for TTL", tx.tx.Key())
+		}
+	}
+
+	// All the transactions added later should still be around.
+	for _, tx := range added2 {
+		if _, ok := txmp.txByKey[tx.tx.Key()]; !ok {
+			t.Errorf("Transaction %X should still be in the mempool, but is not", tx.tx.Key())
+		}
+	}
+}
+
 func TestTxMempool_ExpiredTxs_NumBlocks(t *testing.T) {
 	txmp := setup(t, 500)
 	txmp.height = 100
@@ -445,7 +572,6 @@ func TestTxMempool_ExpiredTxs_NumBlocks(t *testing.T) {
 
 	tTxs := checkTxs(t, txmp, 100, 0)
 	require.Equal(t, len(tTxs), txmp.Size())
-	require.Equal(t, 100, txmp.heightIndex.Size())
 
 	// reap 5 txs at the next height -- no txs should expire
 	reapedTxs := txmp.ReapMaxTxs(5)
@@ -459,12 +585,10 @@ func TestTxMempool_ExpiredTxs_NumBlocks(t *testing.T) {
 	txmp.Unlock()
 
 	require.Equal(t, 95, txmp.Size())
-	require.Equal(t, 95, txmp.heightIndex.Size())
 
 	// check more txs at height 101
 	_ = checkTxs(t, txmp, 50, 1)
 	require.Equal(t, 145, txmp.Size())
-	require.Equal(t, 145, txmp.heightIndex.Size())
 
 	// Reap 5 txs at a height that would expire all the transactions from before
 	// the previous Update (height 100).
@@ -485,7 +609,6 @@ func TestTxMempool_ExpiredTxs_NumBlocks(t *testing.T) {
 	txmp.Unlock()
 
 	require.GreaterOrEqual(t, txmp.Size(), 45)
-	require.GreaterOrEqual(t, txmp.heightIndex.Size(), 45)
 }
 
 func TestTxMempool_CheckTxPostCheckError(t *testing.T) {

internal/mempool/v1/priority_queue.go

@@ -1,159 +0,0 @@
-package v1
-
-import (
-	"container/heap"
-	"sort"
-
-	tmsync "github.com/tendermint/tendermint/internal/libs/sync"
-)
-
-var _ heap.Interface = (*TxPriorityQueue)(nil)
-
-// TxPriorityQueue defines a thread-safe priority queue for valid transactions.
-type TxPriorityQueue struct {
-	mtx tmsync.RWMutex
-	txs []*WrappedTx
-}
-
-func NewTxPriorityQueue() *TxPriorityQueue {
-	pq := &TxPriorityQueue{
-		txs: make([]*WrappedTx, 0),
-	}
-
-	heap.Init(pq)
-
-	return pq
-}
-
-// GetEvictableTxs attempts to find and return a list of *WrappedTx than can be
-// evicted to make room for another *WrappedTx with higher priority. If no such
-// list of *WrappedTx exists, nil will be returned. The returned list of *WrappedTx
-// indicate that these transactions can be removed due to them being of lower
-// priority and that their total sum in size allows room for the incoming
-// transaction according to the mempool's configured limits.
-func (pq *TxPriorityQueue) GetEvictableTxs(priority, txSize, totalSize, cap int64) []*WrappedTx {
-	pq.mtx.RLock()
-	defer pq.mtx.RUnlock()
-
-	txs := make([]*WrappedTx, len(pq.txs))
-	copy(txs, pq.txs)
-
-	sort.Slice(txs, func(i, j int) bool {
-		return txs[i].priority < txs[j].priority
-	})
-
-	var (
-		toEvict []*WrappedTx
-		i       int
-	)
-
-	currSize := totalSize
-
-	// Loop over all transactions in ascending priority order evaluating those
-	// that are only of less priority than the provided argument. We continue
-	// evaluating transactions until there is sufficient capacity for the new
-	// transaction (size) as defined by txSize.
-	for i < len(txs) && txs[i].priority < priority {
-		toEvict = append(toEvict, txs[i])
-		currSize -= int64(txs[i].Size())
-
-		if currSize+txSize <= cap {
-			return toEvict
-		}
-
-		i++
-	}
-
-	return nil
-}
-
-// NumTxs returns the number of transactions in the priority queue. It is
-// thread safe.
-func (pq *TxPriorityQueue) NumTxs() int {
-	pq.mtx.RLock()
-	defer pq.mtx.RUnlock()
-
-	return len(pq.txs)
-}
-
-// RemoveTx removes a specific transaction from the priority queue.
-func (pq *TxPriorityQueue) RemoveTx(tx *WrappedTx) {
-	pq.mtx.Lock()
-	defer pq.mtx.Unlock()
-
-	if tx.heapIndex < len(pq.txs) {
-		heap.Remove(pq, tx.heapIndex)
-	}
-}
-
-// PushTx adds a valid transaction to the priority queue. It is thread safe.
-func (pq *TxPriorityQueue) PushTx(tx *WrappedTx) {
-	pq.mtx.Lock()
-	defer pq.mtx.Unlock()
-
-	heap.Push(pq, tx)
-}
-
-// PopTx removes the top priority transaction from the queue. It is thread safe.
-func (pq *TxPriorityQueue) PopTx() *WrappedTx {
-	pq.mtx.Lock()
-	defer pq.mtx.Unlock()
-
-	x := heap.Pop(pq)
-	if x != nil {
-		return x.(*WrappedTx)
-	}
-
-	return nil
-}
-
-// Push implements the Heap interface.
-//
-// NOTE: A caller should never call Push. Use PushTx instead.
-func (pq *TxPriorityQueue) Push(x interface{}) {
-	n := len(pq.txs)
-	item := x.(*WrappedTx)
-	item.heapIndex = n
-	pq.txs = append(pq.txs, item)
-}
-
-// Pop implements the Heap interface.
-//
-// NOTE: A caller should never call Pop. Use PopTx instead.
-func (pq *TxPriorityQueue) Pop() interface{} {
-	old := pq.txs
-	n := len(old)
-	item := old[n-1]
-	old[n-1] = nil      // avoid memory leak
-	item.heapIndex = -1 // for safety
-	pq.txs = old[0 : n-1]
-	return item
-}
-
-// Len implements the Heap interface.
-//
-// NOTE: A caller should never call Len. Use NumTxs instead.
-func (pq *TxPriorityQueue) Len() int {
-	return len(pq.txs)
-}
-
-// Less implements the Heap interface. It returns true if the transaction at
-// position i in the queue is of less priority than the transaction at position j.
-func (pq *TxPriorityQueue) Less(i, j int) bool {
-	// If there exists two transactions with the same priority, consider the one
-	// that we saw the earliest as the higher priority transaction.
-	if pq.txs[i].priority == pq.txs[j].priority {
-		return pq.txs[i].timestamp.Before(pq.txs[j].timestamp)
-	}
-
-	// We want Pop to give us the highest, not lowest, priority so we use greater
-	// than here.
-	return pq.txs[i].priority > pq.txs[j].priority
-}
-
-// Swap implements the Heap interface. It swaps two transactions in the queue.
-func (pq *TxPriorityQueue) Swap(i, j int) {
-	pq.txs[i], pq.txs[j] = pq.txs[j], pq.txs[i]
-	pq.txs[i].heapIndex = i
-	pq.txs[j].heapIndex = j
-}

internal/mempool/v1/priority_queue_test.go

@@ -1,176 +0,0 @@
-package v1
-
-import (
-	"math/rand"
-	"sort"
-	"sync"
-	"testing"
-	"time"
-
-	"github.com/stretchr/testify/require"
-)
-
-func TestTxPriorityQueue(t *testing.T) {
-	pq := NewTxPriorityQueue()
-	numTxs := 1000
-
-	priorities := make([]int, numTxs)
-
-	var wg sync.WaitGroup
-	for i := 1; i <= numTxs; i++ {
-		priorities[i-1] = i
-		wg.Add(1)
-
-		go func(i int) {
-			pq.PushTx(&WrappedTx{
-				priority:  int64(i),
-				timestamp: time.Now(),
-			})
-
-			wg.Done()
-		}(i)
-	}
-
-	sort.Sort(sort.Reverse(sort.IntSlice(priorities)))
-
-	wg.Wait()
-	require.Equal(t, numTxs, pq.NumTxs())
-
-	// Wait a second and push a tx with a duplicate priority
-	time.Sleep(time.Second)
-	now := time.Now()
-	pq.PushTx(&WrappedTx{
-		priority:  1000,
-		timestamp: now,
-	})
-	require.Equal(t, 1001, pq.NumTxs())
-
-	tx := pq.PopTx()
-	require.Equal(t, 1000, pq.NumTxs())
-	require.Equal(t, int64(1000), tx.priority)
-	require.NotEqual(t, now, tx.timestamp)
-
-	gotPriorities := make([]int, 0)
-	for pq.NumTxs() > 0 {
-		gotPriorities = append(gotPriorities, int(pq.PopTx().priority))
-	}
-
-	require.Equal(t, priorities, gotPriorities)
-}
-
-func TestTxPriorityQueue_GetEvictableTxs(t *testing.T) {
-	pq := NewTxPriorityQueue()
-	rng := rand.New(rand.NewSource(time.Now().UnixNano()))
-
-	values := make([]int, 1000)
-
-	for i := 0; i < 1000; i++ {
-		tx := make([]byte, 5) // each tx is 5 bytes
-		_, err := rng.Read(tx)
-		require.NoError(t, err)
-
-		x := rng.Intn(100000)
-		pq.PushTx(&WrappedTx{
-			tx:       tx,
-			priority: int64(x),
-		})
-
-		values[i] = x
-	}
-
-	sort.Ints(values)
-
-	max := values[len(values)-1]
-	min := values[0]
-	totalSize := int64(len(values) * 5)
-
-	testCases := []struct {
-		name                             string
-		priority, txSize, totalSize, cap int64
-		expectedLen                      int
-	}{
-		{
-			name:        "larest priority; single tx",
-			priority:    int64(max + 1),
-			txSize:      5,
-			totalSize:   totalSize,
-			cap:         totalSize,
-			expectedLen: 1,
-		},
-		{
-			name:        "larest priority; multi tx",
-			priority:    int64(max + 1),
-			txSize:      17,
-			totalSize:   totalSize,
-			cap:         totalSize,
-			expectedLen: 4,
-		},
-		{
-			name:        "larest priority; out of capacity",
-			priority:    int64(max + 1),
-			txSize:      totalSize + 1,
-			totalSize:   totalSize,
-			cap:         totalSize,
-			expectedLen: 0,
-		},
-		{
-			name:        "smallest priority; no tx",
-			priority:    int64(min - 1),
-			txSize:      5,
-			totalSize:   totalSize,
-			cap:         totalSize,
-			expectedLen: 0,
-		},
-		{
-			name:        "small priority; no tx",
-			priority:    int64(min),
-			txSize:      5,
-			totalSize:   totalSize,
-			cap:         totalSize,
-			expectedLen: 0,
-		},
-	}
-
-	for _, tc := range testCases {
-		tc := tc
-
-		t.Run(tc.name, func(t *testing.T) {
-			evictTxs := pq.GetEvictableTxs(tc.priority, tc.txSize, tc.totalSize, tc.cap)
-			require.Len(t, evictTxs, tc.expectedLen)
-		})
-	}
-}
-
-func TestTxPriorityQueue_RemoveTx(t *testing.T) {
-	pq := NewTxPriorityQueue()
-	rng := rand.New(rand.NewSource(time.Now().UnixNano()))
-	numTxs := 1000
-
-	values := make([]int, numTxs)
-
-	for i := 0; i < numTxs; i++ {
-		x := rng.Intn(100000)
-		pq.PushTx(&WrappedTx{
-			priority: int64(x),
-		})
-
-		values[i] = x
-	}
-
-	require.Equal(t, numTxs, pq.NumTxs())
-
-	sort.Ints(values)
-	max := values[len(values)-1]
-
-	wtx := pq.txs[pq.NumTxs()/2]
-	pq.RemoveTx(wtx)
-	require.Equal(t, numTxs-1, pq.NumTxs())
-	require.Equal(t, int64(max), pq.PopTx().priority)
-	require.Equal(t, numTxs-2, pq.NumTxs())
-
-	require.NotPanics(t, func() {
-		pq.RemoveTx(&WrappedTx{heapIndex: numTxs})
-		pq.RemoveTx(&WrappedTx{heapIndex: numTxs + 1})
-	})
-	require.Equal(t, numTxs-2, pq.NumTxs())
-}

internal/mempool/v1/reactor.go

@@ -6,7 +6,6 @@ import (
 	"fmt"
 	"runtime/debug"
 	"sync"
-	"time"
 
 	"github.com/tendermint/tendermint/config"
 	"github.com/tendermint/tendermint/internal/libs/clist"
@@ -24,13 +23,6 @@ var (
 	_ p2p.Wrapper     = (*protomem.Message)(nil)
 )
 
-// PeerManager defines the interface contract required for getting necessary
-// peer information. This should eventually be replaced with a message-oriented
-// approach utilizing the p2p stack.
-type PeerManager interface {
-	GetHeight(types.NodeID) int64
-}
-
 // Reactor implements a service that contains mempool of txs that are broadcasted
 // amongst peers. It maintains a map from peer ID to counter, to prevent gossiping
 // txs to the peers you received it from.
@@ -41,11 +33,6 @@ type Reactor struct {
 	mempool *TxMempool
 	ids     *mempool.MempoolIDs
 
-	// XXX: Currently, this is the only way to get information about a peer. Ideally,
-	// we rely on message-oriented communication to get necessary peer data.
-	// ref: https://github.com/tendermint/tendermint/issues/5670
-	peerMgr PeerManager
-
 	mempoolCh   *p2p.Channel
 	peerUpdates *p2p.PeerUpdates
 	closeCh     chan struct{}
@@ -66,7 +53,6 @@ type Reactor struct {
 func NewReactor(
 	logger log.Logger,
 	cfg *config.MempoolConfig,
-	peerMgr PeerManager,
 	txmp *TxMempool,
 	mempoolCh *p2p.Channel,
 	peerUpdates *p2p.PeerUpdates,
@@ -74,7 +60,6 @@ func NewReactor(
 
 	r := &Reactor{
 		cfg:          cfg,
-		peerMgr:      peerMgr,
 		mempool:      txmp,
 		ids:          mempool.NewMempoolIDs(),
 		mempoolCh:    mempoolCh,
@@ -178,6 +163,15 @@ func (r *Reactor) handleMempoolMessage(envelope p2p.Envelope) error {
 
 		for _, tx := range protoTxs {
 			if err := r.mempool.CheckTx(context.Background(), types.Tx(tx), nil, txInfo); err != nil {
+				if errors.Is(err, types.ErrTxInCache) {
+					// if the tx is in the cache,
+					// then we've been gossiped a
+					// Tx that we've already
+					// got. Gossip should be
+					// smarter, but it's not a
+					// problem.
+					continue
+				}
 				logger.Error("checktx failed for tx", "tx", fmt.Sprintf("%X", types.Tx(tx).Hash()), "err", err)
 			}
 		}
@@ -314,9 +308,6 @@ func (r *Reactor) processPeerUpdates() {
 }
 
 func (r *Reactor) broadcastTxRoutine(peerID types.NodeID, closer *tmsync.Closer) {
-	peerMempoolID := r.ids.GetForPeer(peerID)
-	var nextGossipTx *clist.CElement
-
 	// remove the peer ID from the map of routines and mark the waitgroup as done
 	defer func() {
 		r.mtx.Lock()
@@ -335,6 +326,8 @@ func (r *Reactor) broadcastTxRoutine(peerID types.NodeID, closer *tmsync.Closer)
 		}
 	}()
 
+	peerMempoolID := r.ids.GetForPeer(peerID)
+	var nextGossipTx *clist.CElement
 	for {
 		if !r.IsRunning() {
 			return
@@ -345,8 +338,8 @@ func (r *Reactor) broadcastTxRoutine(peerID types.NodeID, closer *tmsync.Closer)
 		// start from the beginning.
 		if nextGossipTx == nil {
 			select {
-			case <-r.mempool.WaitForNextTx(): // wait until a tx is available
-				if nextGossipTx = r.mempool.NextGossipTx(); nextGossipTx == nil {
+			case <-r.mempool.TxsWaitChan(): // wait until a tx is available
+				if nextGossipTx = r.mempool.TxsFront(); nextGossipTx == nil {
 					continue
 				}
 
@@ -364,18 +357,11 @@ func (r *Reactor) broadcastTxRoutine(peerID types.NodeID, closer *tmsync.Closer)
 
 		memTx := nextGossipTx.Value.(*WrappedTx)
 
-		if r.peerMgr != nil {
-			height := r.peerMgr.GetHeight(peerID)
-			if height > 0 && height < memTx.height-1 {
-				// allow for a lag of one block
-				time.Sleep(mempool.PeerCatchupSleepIntervalMS * time.Millisecond)
-				continue
-			}
-		}
-
+		// Send the transaction to a peer if we didn't receive it from that peer.
+		//
 		// NOTE: Transaction batching was disabled due to:
 		// https://github.com/tendermint/tendermint/issues/5796
-		if ok := r.mempool.txStore.TxHasPeer(memTx.hash, peerMempoolID); !ok {
+		if !memTx.HasPeer(peerMempoolID) {
 			// Send the mempool tx to the corresponding peer. Note, the peer may be
 			// behind and thus would not be able to process the mempool tx correctly.
 			r.mempoolCh.Out <- p2p.Envelope{

internal/mempool/v1/reactor_test.go

@@ -67,7 +67,6 @@ func setupReactors(t *testing.T, numNodes int, chBuf uint) *reactorTestSuite {
 		rts.reactors[nodeID] = NewReactor(
 			rts.logger.With("nodeID", nodeID),
 			cfg.Mempool,
-			rts.network.Nodes[nodeID].PeerManager,
 			mempool,
 			rts.mempoolChannels[nodeID],
 			rts.peerUpdates[nodeID],
@@ -135,7 +134,9 @@ func TestReactorBroadcastDoesNotPanic(t *testing.T) {
 		wg.Add(1)
 		go func() {
 			defer wg.Done()
+			primaryMempool.Lock()
 			primaryMempool.insertTx(next)
+			primaryMempool.Unlock()
 		}()
 	}
 

internal/mempool/v1/tx.go

@@ -1,281 +1,87 @@
 package v1
 
 import (
-	"sort"
+	"sync"
 	"time"
 
-	"github.com/tendermint/tendermint/internal/libs/clist"
-	tmsync "github.com/tendermint/tendermint/internal/libs/sync"
 	"github.com/tendermint/tendermint/types"
 )
 
 // WrappedTx defines a wrapper around a raw transaction with additional metadata
 // that is used for indexing.
 type WrappedTx struct {
-	// tx represents the raw binary transaction data
-	tx types.Tx
+	tx        types.Tx    // the original transaction data
+	hash      types.TxKey // the transaction hash
+	height    int64       // height when this transaction was initially checked (for expiry)
+	timestamp time.Time   // time when transaction was entered (for TTL)
 
-	// hash defines the transaction hash and the primary key used in the mempool
-	hash types.TxKey
-
-	// height defines the height at which the transaction was validated at
-	height int64
-
-	// gasWanted defines the amount of gas the transaction sender requires
-	gasWanted int64
-
-	// priority defines the transaction's priority as specified by the application
-	// in the ResponseCheckTx response.
-	priority int64
-
-	// sender defines the transaction's sender as specified by the application in
-	// the ResponseCheckTx response.
-	sender string
-
-	// timestamp is the time at which the node first received the transaction from
-	// a peer. It is used as a second dimension is prioritizing transactions when
-	// two transactions have the same priority.
-	timestamp time.Time
-
-	// peers records a mapping of all peers that sent a given transaction
-	peers map[uint16]struct{}
-
-	// heapIndex defines the index of the item in the heap
-	heapIndex int
-
-	// gossipEl references the linked-list element in the gossip index
-	gossipEl *clist.CElement
-
-	// removed marks the transaction as removed from the mempool. This is set
-	// during RemoveTx and is needed due to the fact that a given existing
-	// transaction in the mempool can be evicted when it is simultaneously having
-	// a reCheckTx callback executed.
-	removed bool
+	mtx       sync.Mutex
+	gasWanted int64           // app: gas required to execute this transaction
+	priority  int64           // app: priority value for this transaction
+	sender    string          // app: assigned sender label
+	peers     map[uint16]bool // peer IDs who have sent us this transaction
 }
 
-func (wtx *WrappedTx) Size() int {
-	return len(wtx.tx)
-}
+// Size reports the size of the raw transaction in bytes.
+func (w *WrappedTx) Size() int64 { return int64(len(w.tx)) }
 
-// TxStore implements a thread-safe mapping of valid transaction(s).
-//
-// NOTE:
-// - Concurrent read-only access to a *WrappedTx object is OK. However, mutative
-//   access is not allowed. Regardless, it is not expected for the mempool to
-//   need mutative access.
-type TxStore struct {
-	mtx       tmsync.RWMutex
-	hashTxs   map[types.TxKey]*WrappedTx // primary index
-	senderTxs map[string]*WrappedTx      // sender is defined by the ABCI application
-}
-
-func NewTxStore() *TxStore {
-	return &TxStore{
-		senderTxs: make(map[string]*WrappedTx),
-		hashTxs:   make(map[types.TxKey]*WrappedTx),
+// SetPeer adds the specified peer ID as a sender of w.
+func (w *WrappedTx) SetPeer(id uint16) {
+	w.mtx.Lock()
+	defer w.mtx.Unlock()
+	if w.peers == nil {
+		w.peers = map[uint16]bool{id: true}
+	} else {
+		w.peers[id] = true
 	}
 }
 
-// Size returns the total number of transactions in the store.
-func (txs *TxStore) Size() int {
-	txs.mtx.RLock()
-	defer txs.mtx.RUnlock()
-
-	return len(txs.hashTxs)
-}
-
-// GetAllTxs returns all the transactions currently in the store.
-func (txs *TxStore) GetAllTxs() []*WrappedTx {
-	txs.mtx.RLock()
-	defer txs.mtx.RUnlock()
-
-	wTxs := make([]*WrappedTx, len(txs.hashTxs))
-	i := 0
-	for _, wtx := range txs.hashTxs {
-		wTxs[i] = wtx
-		i++
-	}
-
-	return wTxs
-}
-
-// GetTxBySender returns a *WrappedTx by the transaction's sender property
-// defined by the ABCI application.
-func (txs *TxStore) GetTxBySender(sender string) *WrappedTx {
-	txs.mtx.RLock()
-	defer txs.mtx.RUnlock()
-
-	return txs.senderTxs[sender]
-}
-
-// GetTxByHash returns a *WrappedTx by the transaction's hash.
-func (txs *TxStore) GetTxByHash(hash types.TxKey) *WrappedTx {
-	txs.mtx.RLock()
-	defer txs.mtx.RUnlock()
-
-	return txs.hashTxs[hash]
-}
-
-// IsTxRemoved returns true if a transaction by hash is marked as removed and
-// false otherwise.
-func (txs *TxStore) IsTxRemoved(hash types.TxKey) bool {
-	txs.mtx.RLock()
-	defer txs.mtx.RUnlock()
-
-	wtx, ok := txs.hashTxs[hash]
-	if ok {
-		return wtx.removed
-	}
-
-	return false
-}
-
-// SetTx stores a *WrappedTx by it's hash. If the transaction also contains a
-// non-empty sender, we additionally store the transaction by the sender as
-// defined by the ABCI application.
-func (txs *TxStore) SetTx(wtx *WrappedTx) {
-	txs.mtx.Lock()
-	defer txs.mtx.Unlock()
-
-	if len(wtx.sender) > 0 {
-		txs.senderTxs[wtx.sender] = wtx
-	}
-
-	txs.hashTxs[wtx.tx.Key()] = wtx
-}
-
-// RemoveTx removes a *WrappedTx from the transaction store. It deletes all
-// indexes of the transaction.
-func (txs *TxStore) RemoveTx(wtx *WrappedTx) {
-	txs.mtx.Lock()
-	defer txs.mtx.Unlock()
-
-	if len(wtx.sender) > 0 {
-		delete(txs.senderTxs, wtx.sender)
-	}
-
-	delete(txs.hashTxs, wtx.tx.Key())
-	wtx.removed = true
-}
-
-// TxHasPeer returns true if a transaction by hash has a given peer ID and false
-// otherwise. If the transaction does not exist, false is returned.
-func (txs *TxStore) TxHasPeer(hash types.TxKey, peerID uint16) bool {
-	txs.mtx.RLock()
-	defer txs.mtx.RUnlock()
-
-	wtx := txs.hashTxs[hash]
-	if wtx == nil {
-		return false
-	}
-
-	_, ok := wtx.peers[peerID]
+// HasPeer reports whether the specified peer ID is a sender of w.
+func (w *WrappedTx) HasPeer(id uint16) bool {
+	w.mtx.Lock()
+	defer w.mtx.Unlock()
+	_, ok := w.peers[id]
 	return ok
 }
 
-// GetOrSetPeerByTxHash looks up a WrappedTx by transaction hash and adds the
-// given peerID to the WrappedTx's set of peers that sent us this transaction.
-// We return true if we've already recorded the given peer for this transaction
-// and false otherwise. If the transaction does not exist by hash, we return
-// (nil, false).
-func (txs *TxStore) GetOrSetPeerByTxHash(hash types.TxKey, peerID uint16) (*WrappedTx, bool) {
-	txs.mtx.Lock()
-	defer txs.mtx.Unlock()
-
-	wtx := txs.hashTxs[hash]
-	if wtx == nil {
-		return nil, false
-	}
-
-	if wtx.peers == nil {
-		wtx.peers = make(map[uint16]struct{})
-	}
-
-	if _, ok := wtx.peers[peerID]; ok {
-		return wtx, true
-	}
-
-	wtx.peers[peerID] = struct{}{}
-	return wtx, false
+// SetGasWanted sets the application-assigned gas requirement of w.
+func (w *WrappedTx) SetGasWanted(gas int64) {
+	w.mtx.Lock()
+	defer w.mtx.Unlock()
+	w.gasWanted = gas
 }
 
-// WrappedTxList implements a thread-safe list of *WrappedTx objects that can be
-// used to build generic transaction indexes in the mempool. It accepts a
-// comparator function, less(a, b *WrappedTx) bool, that compares two WrappedTx
-// references which is used during Insert in order to determine sorted order. If
-// less returns true, a <= b.
-type WrappedTxList struct {
-	mtx  tmsync.RWMutex
-	txs  []*WrappedTx
-	less func(*WrappedTx, *WrappedTx) bool
+// GasWanted reports the application-assigned gas requirement of w.
+func (w *WrappedTx) GasWanted() int64 {
+	w.mtx.Lock()
+	defer w.mtx.Unlock()
+	return w.gasWanted
 }
 
-func NewWrappedTxList(less func(*WrappedTx, *WrappedTx) bool) *WrappedTxList {
-	return &WrappedTxList{
-		txs:  make([]*WrappedTx, 0),
-		less: less,
-	}
+// SetSender sets the application-assigned sender of w.
+func (w *WrappedTx) SetSender(sender string) {
+	w.mtx.Lock()
+	defer w.mtx.Unlock()
+	w.sender = sender
 }
 
-// Size returns the number of WrappedTx objects in the list.
-func (wtl *WrappedTxList) Size() int {
-	wtl.mtx.RLock()
-	defer wtl.mtx.RUnlock()
-
-	return len(wtl.txs)
+// Sender reports the application-assigned sender of w.
+func (w *WrappedTx) Sender() string {
+	w.mtx.Lock()
+	defer w.mtx.Unlock()
+	return w.sender
 }
 
-// Reset resets the list of transactions to an empty list.
-func (wtl *WrappedTxList) Reset() {
-	wtl.mtx.Lock()
-	defer wtl.mtx.Unlock()
-
-	wtl.txs = make([]*WrappedTx, 0)
+// SetPriority sets the application-assigned priority of w.
+func (w *WrappedTx) SetPriority(p int64) {
+	w.mtx.Lock()
+	defer w.mtx.Unlock()
+	w.priority = p
 }
 
-// Insert inserts a WrappedTx reference into the sorted list based on the list's
-// comparator function.
-func (wtl *WrappedTxList) Insert(wtx *WrappedTx) {
-	wtl.mtx.Lock()
-	defer wtl.mtx.Unlock()
-
-	i := sort.Search(len(wtl.txs), func(i int) bool {
-		return wtl.less(wtl.txs[i], wtx)
-	})
-
-	if i == len(wtl.txs) {
-		// insert at the end
-		wtl.txs = append(wtl.txs, wtx)
-		return
-	}
-
-	// Make space for the inserted element by shifting values at the insertion
-	// index up one index.
-	//
-	// NOTE: The call to append does not allocate memory when cap(wtl.txs) > len(wtl.txs).
-	wtl.txs = append(wtl.txs[:i+1], wtl.txs[i:]...)
-	wtl.txs[i] = wtx
-}
-
-// Remove attempts to remove a WrappedTx from the sorted list.
-func (wtl *WrappedTxList) Remove(wtx *WrappedTx) {
-	wtl.mtx.Lock()
-	defer wtl.mtx.Unlock()
-
-	i := sort.Search(len(wtl.txs), func(i int) bool {
-		return wtl.less(wtl.txs[i], wtx)
-	})
-
-	// Since the list is sorted, we evaluate all elements starting at i. Note, if
-	// the element does not exist, we may potentially evaluate the entire remainder
-	// of the list. However, a caller should not be expected to call Remove with a
-	// non-existing element.
-	for i < len(wtl.txs) {
-		if wtl.txs[i] == wtx {
-			wtl.txs = append(wtl.txs[:i], wtl.txs[i+1:]...)
-			return
-		}
-
-		i++
-	}
+// Priority reports the application-assigned priority of w.
+func (w *WrappedTx) Priority() int64 {
+	w.mtx.Lock()
+	defer w.mtx.Unlock()
+	return w.priority
 }

internal/mempool/v1/tx_test.go

@@ -1,230 +0,0 @@
-package v1
-
-import (
-	"fmt"
-	"math/rand"
-	"sort"
-	"testing"
-	"time"
-
-	"github.com/stretchr/testify/require"
-	"github.com/tendermint/tendermint/types"
-)
-
-func TestTxStore_GetTxBySender(t *testing.T) {
-	txs := NewTxStore()
-	wtx := &WrappedTx{
-		tx:        []byte("test_tx"),
-		sender:    "foo",
-		priority:  1,
-		timestamp: time.Now(),
-	}
-
-	res := txs.GetTxBySender(wtx.sender)
-	require.Nil(t, res)
-
-	txs.SetTx(wtx)
-
-	res = txs.GetTxBySender(wtx.sender)
-	require.NotNil(t, res)
-	require.Equal(t, wtx, res)
-}
-
-func TestTxStore_GetTxByHash(t *testing.T) {
-	txs := NewTxStore()
-	wtx := &WrappedTx{
-		tx:        []byte("test_tx"),
-		sender:    "foo",
-		priority:  1,
-		timestamp: time.Now(),
-	}
-
-	key := wtx.tx.Key()
-	res := txs.GetTxByHash(key)
-	require.Nil(t, res)
-
-	txs.SetTx(wtx)
-
-	res = txs.GetTxByHash(key)
-	require.NotNil(t, res)
-	require.Equal(t, wtx, res)
-}
-
-func TestTxStore_SetTx(t *testing.T) {
-	txs := NewTxStore()
-	wtx := &WrappedTx{
-		tx:        []byte("test_tx"),
-		priority:  1,
-		timestamp: time.Now(),
-	}
-
-	key := wtx.tx.Key()
-	txs.SetTx(wtx)
-
-	res := txs.GetTxByHash(key)
-	require.NotNil(t, res)
-	require.Equal(t, wtx, res)
-
-	wtx.sender = "foo"
-	txs.SetTx(wtx)
-
-	res = txs.GetTxByHash(key)
-	require.NotNil(t, res)
-	require.Equal(t, wtx, res)
-}
-
-func TestTxStore_GetOrSetPeerByTxHash(t *testing.T) {
-	txs := NewTxStore()
-	wtx := &WrappedTx{
-		tx:        []byte("test_tx"),
-		priority:  1,
-		timestamp: time.Now(),
-	}
-
-	key := wtx.tx.Key()
-	txs.SetTx(wtx)
-
-	res, ok := txs.GetOrSetPeerByTxHash(types.Tx([]byte("test_tx_2")).Key(), 15)
-	require.Nil(t, res)
-	require.False(t, ok)
-
-	res, ok = txs.GetOrSetPeerByTxHash(key, 15)
-	require.NotNil(t, res)
-	require.False(t, ok)
-
-	res, ok = txs.GetOrSetPeerByTxHash(key, 15)
-	require.NotNil(t, res)
-	require.True(t, ok)
-
-	require.True(t, txs.TxHasPeer(key, 15))
-	require.False(t, txs.TxHasPeer(key, 16))
-}
-
-func TestTxStore_RemoveTx(t *testing.T) {
-	txs := NewTxStore()
-	wtx := &WrappedTx{
-		tx:        []byte("test_tx"),
-		priority:  1,
-		timestamp: time.Now(),
-	}
-
-	txs.SetTx(wtx)
-
-	key := wtx.tx.Key()
-	res := txs.GetTxByHash(key)
-	require.NotNil(t, res)
-
-	txs.RemoveTx(res)
-
-	res = txs.GetTxByHash(key)
-	require.Nil(t, res)
-}
-
-func TestTxStore_Size(t *testing.T) {
-	txStore := NewTxStore()
-	numTxs := 1000
-
-	for i := 0; i < numTxs; i++ {
-		txStore.SetTx(&WrappedTx{
-			tx:        []byte(fmt.Sprintf("test_tx_%d", i)),
-			priority:  int64(i),
-			timestamp: time.Now(),
-		})
-	}
-
-	require.Equal(t, numTxs, txStore.Size())
-}
-
-func TestWrappedTxList_Reset(t *testing.T) {
-	list := NewWrappedTxList(func(wtx1, wtx2 *WrappedTx) bool {
-		return wtx1.height >= wtx2.height
-	})
-
-	require.Zero(t, list.Size())
-
-	for i := 0; i < 100; i++ {
-		list.Insert(&WrappedTx{height: int64(i)})
-	}
-
-	require.Equal(t, 100, list.Size())
-
-	list.Reset()
-	require.Zero(t, list.Size())
-}
-
-func TestWrappedTxList_Insert(t *testing.T) {
-	list := NewWrappedTxList(func(wtx1, wtx2 *WrappedTx) bool {
-		return wtx1.height >= wtx2.height
-	})
-
-	rng := rand.New(rand.NewSource(time.Now().UnixNano()))
-
-	var expected []int
-	for i := 0; i < 100; i++ {
-		height := rng.Int63n(10000)
-		expected = append(expected, int(height))
-		list.Insert(&WrappedTx{height: height})
-
-		if i%10 == 0 {
-			list.Insert(&WrappedTx{height: height})
-			expected = append(expected, int(height))
-		}
-	}
-
-	got := make([]int, list.Size())
-	for i, wtx := range list.txs {
-		got[i] = int(wtx.height)
-	}
-
-	sort.Ints(expected)
-	require.Equal(t, expected, got)
-}
-
-func TestWrappedTxList_Remove(t *testing.T) {
-	list := NewWrappedTxList(func(wtx1, wtx2 *WrappedTx) bool {
-		return wtx1.height >= wtx2.height
-	})
-
-	rng := rand.New(rand.NewSource(time.Now().UnixNano()))
-
-	var txs []*WrappedTx
-	for i := 0; i < 100; i++ {
-		height := rng.Int63n(10000)
-		tx := &WrappedTx{height: height}
-
-		txs = append(txs, tx)
-		list.Insert(tx)
-
-		if i%10 == 0 {
-			tx = &WrappedTx{height: height}
-			list.Insert(tx)
-			txs = append(txs, tx)
-		}
-	}
-
-	// remove a tx that does not exist
-	list.Remove(&WrappedTx{height: 20000})
-
-	// remove a tx that exists (by height) but not referenced
-	list.Remove(&WrappedTx{height: txs[0].height})
-
-	// remove a few existing txs
-	for i := 0; i < 25; i++ {
-		j := rng.Intn(len(txs))
-		list.Remove(txs[j])
-		txs = append(txs[:j], txs[j+1:]...)
-	}
-
-	expected := make([]int, len(txs))
-	for i, tx := range txs {
-		expected[i] = int(tx.height)
-	}
-
-	got := make([]int, list.Size())
-	for i, wtx := range list.txs {
-		got[i] = int(wtx.height)
-	}
-
-	sort.Ints(expected)
-	require.Equal(t, expected, got)
-}

internal/p2p/conn/connection.go

@@ -807,6 +807,8 @@ func (ch *Channel) sendBytes(bytes []byte) bool {
 		return true
 	case <-time.After(defaultSendTimeout):
 		return false
+	case <-ch.conn.Quit():
+		return false
 	}
 }
 

internal/p2p/conn_tracker.go

@@ -26,6 +26,7 @@ func newConnTracker(max uint, window time.Duration) connectionTracker {
 		cache:       make(map[string]uint),
 		lastConnect: make(map[string]time.Time),
 		max:         max,
+		window:      window,
 	}
 }
 
@@ -43,7 +44,7 @@ func (rat *connTrackerImpl) AddConn(addr net.IP) error {
 	if num := rat.cache[address]; num >= rat.max {
 		return fmt.Errorf("%q has %d connections [max=%d]", address, num, rat.max)
 	} else if num == 0 {
-		// if there is already at least connection, check to
+		// if there is already at least one connection, check to
 		// see if it was established before within the window,
 		// and error if so.
 		if last := rat.lastConnect[address]; time.Since(last) < rat.window {

internal/p2p/conn_tracker_test.go

@@ -70,4 +70,15 @@ func TestConnTracker(t *testing.T) {
 		}
 		require.Equal(t, 10, ct.Len())
 	})
+	t.Run("Window", func(t *testing.T) {
+		const window = 100 * time.Millisecond
+		ct := newConnTracker(10, window)
+		ip := randLocalIPv4()
+		require.NoError(t, ct.AddConn(ip))
+		ct.RemoveConn(ip)
+		require.Error(t, ct.AddConn(ip))
+		time.Sleep(window)
+		require.NoError(t, ct.AddConn(ip))
+	})
+
 }

internal/p2p/metrics.go

@@ -27,8 +27,13 @@ var (
 
 // Metrics contains metrics exposed by this package.
 type Metrics struct {
-	// Number of peers.
+	// Number of peers connected.
 	Peers metrics.Gauge
+	// Nomber of peers in the peer store database.
+	PeersStored metrics.Gauge
+	// Number of inactive peers stored.
+	PeersInactivated metrics.Gauge
+
 	// Number of bytes received from a given peer.
 	PeerReceiveBytesTotal metrics.Counter
 	// Number of bytes sent to a given peer.
@@ -36,6 +41,21 @@ type Metrics struct {
 	// Pending bytes to be sent to a given peer.
 	PeerPendingSendBytes metrics.Gauge
 
+	// Number of successful connection attempts
+	PeersConnectedSuccess metrics.Counter
+	// Number of failed connection attempts
+	PeersConnectedFailure metrics.Counter
+
+	// Number of peers connected as a result of dialing the
+	// peer.
+	PeersConnectedOutgoing metrics.Gauge
+	// Number of peers connected as a result of the peer dialing
+	// this node.
+	PeersConnectedIncoming metrics.Gauge
+
+	// Number of peers evicted by this node.
+	PeersEvicted metrics.Counter
+
 	// RouterPeerQueueRecv defines the time taken to read off of a peer's queue
 	// before sending on the connection.
 	RouterPeerQueueRecv metrics.Histogram
@@ -73,7 +93,49 @@ func PrometheusMetrics(namespace string, labelsAndValues ...string) *Metrics {
 			Namespace: namespace,
 			Subsystem: MetricsSubsystem,
 			Name:      "peers",
-			Help:      "Number of peers.",
+			Help:      "Number of peers connected.",
+		}, labels).With(labelsAndValues...),
+		PeersStored: prometheus.NewGaugeFrom(stdprometheus.GaugeOpts{
+			Namespace: namespace,
+			Subsystem: MetricsSubsystem,
+			Name:      "peers_stored",
+			Help:      "Number of peers in the peer Store",
+		}, labels).With(labelsAndValues...),
+		PeersInactivated: prometheus.NewGaugeFrom(stdprometheus.GaugeOpts{
+			Namespace: namespace,
+			Subsystem: MetricsSubsystem,
+			Name:      "peers_inactivated",
+			Help:      "Number of peers inactivated",
+		}, labels).With(labelsAndValues...),
+		PeersConnectedSuccess: prometheus.NewCounterFrom(stdprometheus.CounterOpts{
+			Namespace: namespace,
+			Subsystem: MetricsSubsystem,
+			Name:      "peers_connected_success",
+			Help:      "Number of successful peer connection attempts",
+		}, labels).With(labelsAndValues...),
+		PeersEvicted: prometheus.NewCounterFrom(stdprometheus.CounterOpts{
+			Namespace: namespace,
+			Subsystem: MetricsSubsystem,
+			Name:      "peers_evicted",
+			Help:      "Number of connected peers evicted",
+		}, labels).With(labelsAndValues...),
+		PeersConnectedFailure: prometheus.NewCounterFrom(stdprometheus.CounterOpts{
+			Namespace: namespace,
+			Subsystem: MetricsSubsystem,
+			Name:      "peers_connected_failure",
+			Help:      "Number of unsuccessful peer connection attempts",
+		}, labels).With(labelsAndValues...),
+		PeersConnectedIncoming: prometheus.NewGaugeFrom(stdprometheus.GaugeOpts{
+			Namespace: namespace,
+			Subsystem: MetricsSubsystem,
+			Name:      "peers_connected_incoming",
+			Help:      "Number of peers connected by peer dialing this node",
+		}, labels).With(labelsAndValues...),
+		PeersConnectedOutgoing: prometheus.NewGaugeFrom(stdprometheus.GaugeOpts{
+			Namespace: namespace,
+			Subsystem: MetricsSubsystem,
+			Name:      "peers_connected_outgoing",
+			Help:      "Number of peers connected by this node dialing the peer",
 		}, labels).With(labelsAndValues...),
 
 		PeerReceiveBytesTotal: prometheus.NewCounterFrom(stdprometheus.CounterOpts{
@@ -141,6 +203,13 @@ func PrometheusMetrics(namespace string, labelsAndValues ...string) *Metrics {
 func NopMetrics() *Metrics {
 	return &Metrics{
 		Peers:                  discard.NewGauge(),
+		PeersStored:            discard.NewGauge(),
+		PeersConnectedSuccess:  discard.NewCounter(),
+		PeersConnectedFailure:  discard.NewCounter(),
+		PeersConnectedIncoming: discard.NewGauge(),
+		PeersConnectedOutgoing: discard.NewGauge(),
+		PeersInactivated:       discard.NewGauge(),
+		PeersEvicted:           discard.NewCounter(),
 		PeerReceiveBytesTotal:  discard.NewCounter(),
 		PeerSendBytesTotal:     discard.NewCounter(),
 		PeerPendingSendBytes:   discard.NewGauge(),

internal/p2p/mocks/connection.go

@@ -13,6 +13,8 @@ import (
 
 	p2p "github.com/tendermint/tendermint/internal/p2p"
 
+	time "time"
+
 	types "github.com/tendermint/tendermint/types"
 )
 
@@ -49,20 +51,20 @@ func (_m *Connection) FlushClose() error {
 	return r0
 }
 
-// Handshake provides a mock function with given fields: _a0, _a1, _a2
-func (_m *Connection) Handshake(_a0 context.Context, _a1 types.NodeInfo, _a2 crypto.PrivKey) (types.NodeInfo, crypto.PubKey, error) {
-	ret := _m.Called(_a0, _a1, _a2)
+// Handshake provides a mock function with given fields: _a0, _a1, _a2, _a3
+func (_m *Connection) Handshake(_a0 context.Context, _a1 time.Duration, _a2 types.NodeInfo, _a3 crypto.PrivKey) (types.NodeInfo, crypto.PubKey, error) {
+	ret := _m.Called(_a0, _a1, _a2, _a3)
 
 	var r0 types.NodeInfo
-	if rf, ok := ret.Get(0).(func(context.Context, types.NodeInfo, crypto.PrivKey) types.NodeInfo); ok {
-		r0 = rf(_a0, _a1, _a2)
+	if rf, ok := ret.Get(0).(func(context.Context, time.Duration, types.NodeInfo, crypto.PrivKey) types.NodeInfo); ok {
+		r0 = rf(_a0, _a1, _a2, _a3)
 	} else {
 		r0 = ret.Get(0).(types.NodeInfo)
 	}
 
 	var r1 crypto.PubKey
-	if rf, ok := ret.Get(1).(func(context.Context, types.NodeInfo, crypto.PrivKey) crypto.PubKey); ok {
-		r1 = rf(_a0, _a1, _a2)
+	if rf, ok := ret.Get(1).(func(context.Context, time.Duration, types.NodeInfo, crypto.PrivKey) crypto.PubKey); ok {
+		r1 = rf(_a0, _a1, _a2, _a3)
 	} else {
 		if ret.Get(1) != nil {
 			r1 = ret.Get(1).(crypto.PubKey)
@@ -70,8 +72,8 @@ func (_m *Connection) Handshake(_a0 context.Context, _a1 types.NodeInfo, _a2 cry
 	}
 
 	var r2 error
-	if rf, ok := ret.Get(2).(func(context.Context, types.NodeInfo, crypto.PrivKey) error); ok {
-		r2 = rf(_a0, _a1, _a2)
+	if rf, ok := ret.Get(2).(func(context.Context, time.Duration, types.NodeInfo, crypto.PrivKey) error); ok {
+		r2 = rf(_a0, _a1, _a2, _a3)
 	} else {
 		r2 = ret.Error(2)
 	}
@@ -206,3 +208,18 @@ func (_m *Connection) TrySendMessage(_a0 p2p.ChannelID, _a1 []byte) (bool, error
 
 	return r0, r1
 }
+
+type mockConstructorTestingTNewConnection interface {
+	mock.TestingT
+	Cleanup(func())
+}
+
+// NewConnection creates a new instance of Connection. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
+func NewConnection(t mockConstructorTestingTNewConnection) *Connection {
+	mock := &Connection{}
+	mock.Mock.Test(t)
+
+	t.Cleanup(func() { mock.AssertExpectations(t) })
+
+	return mock
+}

internal/p2p/mocks/peer.go

@@ -332,3 +332,18 @@ func (_m *Peer) TrySend(_a0 byte, _a1 []byte) bool {
 func (_m *Peer) Wait() {
 	_m.Called()
 }
+
+type mockConstructorTestingTNewPeer interface {
+	mock.TestingT
+	Cleanup(func())
+}
+
+// NewPeer creates a new instance of Peer. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
+func NewPeer(t mockConstructorTestingTNewPeer) *Peer {
+	mock := &Peer{}
+	mock.Mock.Test(t)
+
+	t.Cleanup(func() { mock.AssertExpectations(t) })
+
+	return mock
+}

internal/p2p/mocks/transport.go

@@ -119,3 +119,18 @@ func (_m *Transport) String() string {
 
 	return r0
 }
+
+type mockConstructorTestingTNewTransport interface {
+	mock.TestingT
+	Cleanup(func())
+}
+
+// NewTransport creates a new instance of Transport. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
+func NewTransport(t mockConstructorTestingTNewTransport) *Transport {
+	mock := &Transport{}
+	mock.Mock.Test(t)
+
+	t.Cleanup(func() { mock.AssertExpectations(t) })
+
+	return mock
+}

internal/p2p/p2ptest/network.go

@@ -1,7 +1,6 @@
 package p2ptest
 
 import (
-	"context"
 	"math/rand"
 	"testing"
 	"time"
@@ -238,11 +237,13 @@ func (n *Network) MakeNode(t *testing.T, opts NodeOptions) *Node {
 	require.Len(t, transport.Endpoints(), 1, "transport not listening on 1 endpoint")
 
 	peerManager, err := p2p.NewPeerManager(nodeID, dbm.NewMemDB(), p2p.PeerManagerOptions{
-		MinRetryTime:    10 * time.Millisecond,
-		MaxRetryTime:    100 * time.Millisecond,
-		RetryTimeJitter: time.Millisecond,
-		MaxPeers:        opts.MaxPeers,
-		MaxConnected:    opts.MaxConnected,
+		MinRetryTime:             10 * time.Millisecond,
+		DisconnectCooldownPeriod: 10 * time.Millisecond,
+		MaxRetryTime:             100 * time.Millisecond,
+		RetryTimeJitter:          time.Millisecond,
+		MaxPeers:                 opts.MaxPeers,
+		MaxConnected:             opts.MaxConnected,
+		Metrics:                  p2p.NopMetrics(),
 	})
 	require.NoError(t, err)
 
@@ -253,7 +254,7 @@ func (n *Network) MakeNode(t *testing.T, opts NodeOptions) *Node {
 		privKey,
 		peerManager,
 		[]p2p.Transport{transport},
-		p2p.RouterOptions{DialSleep: func(_ context.Context) {}},
+		p2p.RouterOptions{},
 	)
 	require.NoError(t, err)
 	require.NoError(t, router.Start())

internal/p2p/peer_test.go

@@ -90,7 +90,7 @@ func createOutboundPeerAndPerformHandshake(
 	if err != nil {
 		return nil, err
 	}
-	peerInfo, _, err := pc.conn.Handshake(context.Background(), ourNodeInfo, pk)
+	peerInfo, _, err := pc.conn.Handshake(context.Background(), 0, ourNodeInfo, pk)
 	if err != nil {
 		return nil, err
 	}
@@ -187,7 +187,7 @@ func (rp *remotePeer) Dial(addr *NetAddress) (net.Conn, error) {
 	if err != nil {
 		return nil, err
 	}
-	_, _, err = pc.conn.Handshake(context.Background(), rp.nodeInfo(), rp.PrivKey)
+	_, _, err = pc.conn.Handshake(context.Background(), 0, rp.nodeInfo(), rp.PrivKey)
 	if err != nil {
 		return nil, err
 	}
@@ -213,7 +213,7 @@ func (rp *remotePeer) accept() {
 		if err != nil {
 			golog.Printf("Failed to create a peer: %+v", err)
 		}
-		_, _, err = pc.conn.Handshake(context.Background(), rp.nodeInfo(), rp.PrivKey)
+		_, _, err = pc.conn.Handshake(context.Background(), 0, rp.nodeInfo(), rp.PrivKey)
 		if err != nil {
 			golog.Printf("Failed to handshake a peer: %+v", err)
 		}

internal/p2p/peermanager.go

@@ -38,11 +38,19 @@ const (
 	PeerStatusBad  PeerStatus = "bad"  // peer observed as bad
 )
 
-// PeerScore is a numeric score assigned to a peer (higher is better).
-type PeerScore uint8
+type peerConnectionDirection int
 
 const (
-	PeerScorePersistent PeerScore = math.MaxUint8 // persistent peers
+	peerConnectionIncoming peerConnectionDirection = iota + 1
+	peerConnectionOutgoing
+)
+
+// PeerScore is a numeric score assigned to a peer (higher is better).
+type PeerScore int16
+
+const (
+	PeerScorePersistent       PeerScore = math.MaxInt16 // persistent peers
+	MaxPeerScoreNotPersistent PeerScore = PeerScorePersistent - 1
 )
 
 // PeerUpdate is a peer update event sent via PeerUpdates.
@@ -118,6 +126,13 @@ type PeerManagerOptions struct {
 	// outbound). 0 means no limit.
 	MaxConnected uint16
 
+	// MaxOutgoingConnections specifies how many outgoing
+	// connections. It must be lower than MaxConnected. If it is
+	// 0, then all connections can be outgoing. Once this limit is
+	// reached, the node will not dial peers, allowing the
+	// remaining peer connections to be used by incoming connections.
+	MaxOutgoingConnections uint16
+
 	// MaxConnectedUpgrade is the maximum number of additional connections to
 	// use for probing any better-scored peers to upgrade to when all connection
 	// slots are full. 0 disables peer upgrading.
@@ -147,6 +162,10 @@ type PeerManagerOptions struct {
 	// retry times, to avoid thundering herds. 0 disables jitter.
 	RetryTimeJitter time.Duration
 
+	// DisconnectCooldownPeriod is the amount of time after we
+	// disconnect from a peer before we'll consider dialing a new peer
+	DisconnectCooldownPeriod time.Duration
+
 	// PeerScores sets fixed scores for specific peers. It is mainly used
 	// for testing. A score of 0 is ignored.
 	PeerScores map[types.NodeID]PeerScore
@@ -162,6 +181,9 @@ type PeerManagerOptions struct {
 	// persistentPeers provides fast PersistentPeers lookups. It is built
 	// by optimize().
 	persistentPeers map[types.NodeID]bool
+
+	// Peer Metrics
+	Metrics *Metrics
 }
 
 // Validate validates the options.
@@ -212,6 +234,10 @@ func (o *PeerManagerOptions) Validate() error {
 		}
 	}
 
+	if o.MaxOutgoingConnections > 0 && o.MaxConnected < o.MaxOutgoingConnections {
+		return errors.New("cannot set MaxOutgoingConnections to a value larger than MaxConnected")
+	}
+
 	return nil
 }
 
@@ -280,6 +306,7 @@ func (o *PeerManagerOptions) optimize() {
 type PeerManager struct {
 	selfID     types.NodeID
 	options    PeerManagerOptions
+	metrics    *Metrics
 	rand       *rand.Rand
 	dialWaker  *tmsync.Waker // wakes up DialNext() on relevant peer changes
 	evictWaker *tmsync.Waker // wakes up EvictNext() on relevant peer changes
@@ -288,13 +315,13 @@ type PeerManager struct {
 
 	mtx           sync.Mutex
 	store         *peerStore
-	subscriptions map[*PeerUpdates]*PeerUpdates // keyed by struct identity (address)
-	dialing       map[types.NodeID]bool         // peers being dialed (DialNext → Dialed/DialFail)
-	upgrading     map[types.NodeID]types.NodeID // peers claimed for upgrade (DialNext → Dialed/DialFail)
-	connected     map[types.NodeID]bool         // connected peers (Dialed/Accepted → Disconnected)
-	ready         map[types.NodeID]bool         // ready peers (Ready → Disconnected)
-	evict         map[types.NodeID]bool         // peers scheduled for eviction (Connected → EvictNext)
-	evicting      map[types.NodeID]bool         // peers being evicted (EvictNext → Disconnected)
+	subscriptions map[*PeerUpdates]*PeerUpdates            // keyed by struct identity (address)
+	dialing       map[types.NodeID]bool                    // peers being dialed (DialNext → Dialed/DialFail)
+	upgrading     map[types.NodeID]types.NodeID            // peers claimed for upgrade (DialNext → Dialed/DialFail)
+	connected     map[types.NodeID]peerConnectionDirection // connected peers (Dialed/Accepted → Disconnected)
+	ready         map[types.NodeID]bool                    // ready peers (Ready → Disconnected)
+	evict         map[types.NodeID]bool                    // peers scheduled for eviction (Connected → EvictNext)
+	evicting      map[types.NodeID]bool                    // peers being evicted (EvictNext → Disconnected)
 }
 
 // NewPeerManager creates a new peer manager.
@@ -314,28 +341,34 @@ func NewPeerManager(selfID types.NodeID, peerDB dbm.DB, options PeerManagerOptio
 	}
 
 	peerManager := &PeerManager{
-		selfID:     selfID,
-		options:    options,
-		rand:       rand.New(rand.NewSource(time.Now().UnixNano())), // nolint:gosec
-		dialWaker:  tmsync.NewWaker(),
-		evictWaker: tmsync.NewWaker(),
-		closeCh:    make(chan struct{}),
-
+		selfID:        selfID,
+		options:       options,
+		rand:          rand.New(rand.NewSource(time.Now().UnixNano())), // nolint:gosec
+		dialWaker:     tmsync.NewWaker(),
+		evictWaker:    tmsync.NewWaker(),
+		closeCh:       make(chan struct{}),
+		metrics:       NopMetrics(),
 		store:         store,
 		dialing:       map[types.NodeID]bool{},
 		upgrading:     map[types.NodeID]types.NodeID{},
-		connected:     map[types.NodeID]bool{},
+		connected:     map[types.NodeID]peerConnectionDirection{},
 		ready:         map[types.NodeID]bool{},
 		evict:         map[types.NodeID]bool{},
 		evicting:      map[types.NodeID]bool{},
 		subscriptions: map[*PeerUpdates]*PeerUpdates{},
 	}
+
+	if options.Metrics != nil {
+		peerManager.metrics = options.Metrics
+	}
+
 	if err = peerManager.configurePeers(); err != nil {
 		return nil, err
 	}
 	if err = peerManager.prunePeers(); err != nil {
 		return nil, err
 	}
+
 	return peerManager, nil
 }
 
@@ -361,6 +394,7 @@ func (m *PeerManager) configurePeers() error {
 			}
 		}
 	}
+	m.metrics.PeersStored.Add(float64(m.store.Size()))
 	return nil
 }
 
@@ -390,20 +424,45 @@ func (m *PeerManager) prunePeers() error {
 	ranked := m.store.Ranked()
 	for i := len(ranked) - 1; i >= 0; i-- {
 		peerID := ranked[i].ID
+
 		switch {
 		case m.store.Size() <= int(m.options.MaxPeers):
 			return nil
 		case m.dialing[peerID]:
-		case m.connected[peerID]:
+		case m.isConnected(peerID):
 		default:
 			if err := m.store.Delete(peerID); err != nil {
 				return err
 			}
+			m.metrics.PeersStored.Add(-1)
 		}
 	}
 	return nil
 }
 
+func (m *PeerManager) isConnected(peerID types.NodeID) bool {
+	_, ok := m.connected[peerID]
+	return ok
+}
+
+type connectionStats struct {
+	incoming uint16
+	outgoing uint16
+}
+
+func (m *PeerManager) getConnectedInfo() connectionStats {
+	out := connectionStats{}
+	for _, direction := range m.connected {
+		switch direction {
+		case peerConnectionIncoming:
+			out.incoming++
+		case peerConnectionOutgoing:
+			out.outgoing++
+		}
+	}
+	return out
+}
+
 // Add adds a peer to the manager, given as an address. If the peer already
 // exists, the address is added to it if it isn't already present. This will push
 // low scoring peers out of the address book if it exceeds the maximum size.
@@ -427,12 +486,17 @@ func (m *PeerManager) Add(address NodeAddress) (bool, error) {
 	if ok {
 		return false, nil
 	}
+	if peer.Inactive {
+		return false, nil
+	}
 
 	// else add the new address
 	peer.AddressInfo[address] = &peerAddressInfo{Address: address}
 	if err := m.store.Set(peer); err != nil {
 		return false, err
 	}
+
+	m.metrics.PeersStored.Add(1)
 	if err := m.prunePeers(); err != nil {
 		return true, err
 	}
@@ -452,18 +516,35 @@ func (m *PeerManager) PeerRatio() float64 {
 	return float64(m.store.Size()) / float64(m.options.MaxPeers)
 }
 
+func (m *PeerManager) HasMaxPeerCapacity() bool {
+	m.mtx.Lock()
+	defer m.mtx.Unlock()
+
+	return len(m.connected) >= int(m.options.MaxConnected)
+}
+
+func (m *PeerManager) HasDialedMaxPeers() bool {
+	m.mtx.Lock()
+	defer m.mtx.Unlock()
+
+	stats := m.getConnectedInfo()
+
+	return stats.outgoing >= m.options.MaxOutgoingConnections
+}
+
 // DialNext finds an appropriate peer address to dial, and marks it as dialing.
 // If no peer is found, or all connection slots are full, it blocks until one
 // becomes available. The caller must call Dialed() or DialFailed() for the
 // returned peer.
 func (m *PeerManager) DialNext(ctx context.Context) (NodeAddress, error) {
 	for {
-		address, err := m.TryDialNext()
-		if err != nil || (address != NodeAddress{}) {
-			return address, err
+		if address := m.TryDialNext(); (address != NodeAddress{}) {
+			return address, nil
 		}
+
 		select {
 		case <-m.dialWaker.Sleep():
+			continue
 		case <-ctx.Done():
 			return NodeAddress{}, ctx.Err()
 		}
@@ -472,20 +553,28 @@ func (m *PeerManager) DialNext(ctx context.Context) (NodeAddress, error) {
 
 // TryDialNext is equivalent to DialNext(), but immediately returns an empty
 // address if no peers or connection slots are available.
-func (m *PeerManager) TryDialNext() (NodeAddress, error) {
+func (m *PeerManager) TryDialNext() NodeAddress {
 	m.mtx.Lock()
 	defer m.mtx.Unlock()
 
 	// We allow dialing MaxConnected+MaxConnectedUpgrade peers. Including
 	// MaxConnectedUpgrade allows us to probe additional peers that have a
 	// higher score than any other peers, and if successful evict it.
-	if m.options.MaxConnected > 0 && len(m.connected)+len(m.dialing) >=
-		int(m.options.MaxConnected)+int(m.options.MaxConnectedUpgrade) {
-		return NodeAddress{}, nil
+	if m.options.MaxConnected > 0 && len(m.connected)+len(m.dialing) >= int(m.options.MaxConnected)+int(m.options.MaxConnectedUpgrade) {
+		return NodeAddress{}
+	}
+
+	cinfo := m.getConnectedInfo()
+	if m.options.MaxOutgoingConnections > 0 && cinfo.outgoing >= m.options.MaxOutgoingConnections {
+		return NodeAddress{}
 	}
 
 	for _, peer := range m.store.Ranked() {
-		if m.dialing[peer.ID] || m.connected[peer.ID] {
+		if m.dialing[peer.ID] || m.isConnected(peer.ID) {
+			continue
+		}
+
+		if !peer.LastDisconnected.IsZero() && time.Since(peer.LastDisconnected) < m.options.DisconnectCooldownPeriod {
 			continue
 		}
 
@@ -494,6 +583,10 @@ func (m *PeerManager) TryDialNext() (NodeAddress, error) {
 				continue
 			}
 
+			if id, ok := m.store.Resolve(addressInfo.Address); ok && (m.isConnected(id) || m.dialing[id]) {
+				continue
+			}
+
 			// We now have an eligible address to dial. If we're full but have
 			// upgrade capacity (as checked above), we find a lower-scored peer
 			// we can replace and mark it as upgrading so noone else claims it.
@@ -504,25 +597,24 @@ func (m *PeerManager) TryDialNext() (NodeAddress, error) {
 			if m.options.MaxConnected > 0 && len(m.connected) >= int(m.options.MaxConnected) {
 				upgradeFromPeer := m.findUpgradeCandidate(peer.ID, peer.Score())
 				if upgradeFromPeer == "" {
-					return NodeAddress{}, nil
+					return NodeAddress{}
 				}
 				m.upgrading[upgradeFromPeer] = peer.ID
 			}
 
 			m.dialing[peer.ID] = true
-			return addressInfo.Address, nil
+			return addressInfo.Address
 		}
 	}
-	return NodeAddress{}, nil
+	return NodeAddress{}
 }
 
 // DialFailed reports a failed dial attempt. This will make the peer available
 // for dialing again when appropriate (possibly after a retry timeout).
-//
-// FIXME: This should probably delete or mark bad addresses/peers after some time.
 func (m *PeerManager) DialFailed(address NodeAddress) error {
 	m.mtx.Lock()
 	defer m.mtx.Unlock()
+	m.metrics.PeersConnectedFailure.Add(1)
 
 	delete(m.dialing, address.NodeID)
 	for from, to := range m.upgrading {
@@ -542,6 +634,7 @@ func (m *PeerManager) DialFailed(address NodeAddress) error {
 
 	addressInfo.LastDialFailure = time.Now().UTC()
 	addressInfo.DialFailures++
+
 	if err := m.store.Set(peer); err != nil {
 		return err
 	}
@@ -575,6 +668,8 @@ func (m *PeerManager) Dialed(address NodeAddress) error {
 	m.mtx.Lock()
 	defer m.mtx.Unlock()
 
+	m.metrics.PeersConnectedSuccess.Add(1)
+
 	delete(m.dialing, address.NodeID)
 
 	var upgradeFromPeer types.NodeID
@@ -589,12 +684,11 @@ func (m *PeerManager) Dialed(address NodeAddress) error {
 	if address.NodeID == m.selfID {
 		return fmt.Errorf("rejecting connection to self (%v)", address.NodeID)
 	}
-	if m.connected[address.NodeID] {
+	if m.isConnected(address.NodeID) {
 		return fmt.Errorf("peer %v is already connected", address.NodeID)
 	}
 	if m.options.MaxConnected > 0 && len(m.connected) >= int(m.options.MaxConnected) {
-		if upgradeFromPeer == "" || len(m.connected) >=
-			int(m.options.MaxConnected)+int(m.options.MaxConnectedUpgrade) {
+		if upgradeFromPeer == "" || len(m.connected) >= int(m.options.MaxConnected)+int(m.options.MaxConnectedUpgrade) {
 			return fmt.Errorf("already connected to maximum number of peers")
 		}
 	}
@@ -604,6 +698,11 @@ func (m *PeerManager) Dialed(address NodeAddress) error {
 		return fmt.Errorf("peer %q was removed while dialing", address.NodeID)
 	}
 	now := time.Now().UTC()
+	if peer.Inactive {
+		m.metrics.PeersInactivated.Add(-1)
+	}
+	peer.Inactive = false
+
 	peer.LastConnected = now
 	if addressInfo, ok := peer.AddressInfo[address]; ok {
 		addressInfo.DialFailures = 0
@@ -615,8 +714,7 @@ func (m *PeerManager) Dialed(address NodeAddress) error {
 		return err
 	}
 
-	if upgradeFromPeer != "" && m.options.MaxConnected > 0 &&
-		len(m.connected) >= int(m.options.MaxConnected) {
+	if upgradeFromPeer != "" && m.options.MaxConnected > 0 && len(m.connected) >= int(m.options.MaxConnected) {
 		// Look for an even lower-scored peer that may have appeared since we
 		// started the upgrade.
 		if p, ok := m.store.Get(upgradeFromPeer); ok {
@@ -625,9 +723,11 @@ func (m *PeerManager) Dialed(address NodeAddress) error {
 			}
 		}
 		m.evict[upgradeFromPeer] = true
+		m.evictWaker.Wake()
 	}
-	m.connected[peer.ID] = true
-	m.evictWaker.Wake()
+
+	m.metrics.PeersConnectedOutgoing.Add(1)
+	m.connected[peer.ID] = peerConnectionOutgoing
 
 	return nil
 }
@@ -656,11 +756,10 @@ func (m *PeerManager) Accepted(peerID types.NodeID) error {
 	if peerID == m.selfID {
 		return fmt.Errorf("rejecting connection from self (%v)", peerID)
 	}
-	if m.connected[peerID] {
+	if m.isConnected(peerID) {
 		return fmt.Errorf("peer %q is already connected", peerID)
 	}
-	if m.options.MaxConnected > 0 &&
-		len(m.connected) >= int(m.options.MaxConnected)+int(m.options.MaxConnectedUpgrade) {
+	if m.options.MaxConnected > 0 && len(m.connected) >= int(m.options.MaxConnected)+int(m.options.MaxConnectedUpgrade) {
 		return fmt.Errorf("already connected to maximum number of peers")
 	}
 
@@ -685,12 +784,17 @@ func (m *PeerManager) Accepted(peerID types.NodeID) error {
 		}
 	}
 
+	if peer.Inactive {
+		m.metrics.PeersInactivated.Add(-1)
+	}
+	peer.Inactive = false
 	peer.LastConnected = time.Now().UTC()
 	if err := m.store.Set(peer); err != nil {
 		return err
 	}
 
-	m.connected[peerID] = true
+	m.metrics.PeersConnectedIncoming.Add(1)
+	m.connected[peerID] = peerConnectionIncoming
 	if upgradeFromPeer != "" {
 		m.evict[upgradeFromPeer] = true
 	}
@@ -709,7 +813,7 @@ func (m *PeerManager) Ready(peerID types.NodeID, channels ChannelIDSet) {
 	m.mtx.Lock()
 	defer m.mtx.Unlock()
 
-	if m.connected[peerID] {
+	if m.isConnected(peerID) {
 		m.ready[peerID] = true
 		m.broadcast(PeerUpdate{
 			NodeID:   peerID,
@@ -745,7 +849,7 @@ func (m *PeerManager) TryEvictNext() (types.NodeID, error) {
 	// random one.
 	for peerID := range m.evict {
 		delete(m.evict, peerID)
-		if m.connected[peerID] && !m.evicting[peerID] {
+		if m.isConnected(peerID) && !m.evicting[peerID] {
 			m.evicting[peerID] = true
 			return peerID, nil
 		}
@@ -762,7 +866,7 @@ func (m *PeerManager) TryEvictNext() (types.NodeID, error) {
 	ranked := m.store.Ranked()
 	for i := len(ranked) - 1; i >= 0; i-- {
 		peer := ranked[i]
-		if m.connected[peer.ID] && !m.evicting[peer.ID] {
+		if m.isConnected(peer.ID) && !m.evicting[peer.ID] {
 			m.evicting[peer.ID] = true
 			return peer.ID, nil
 		}
@@ -777,6 +881,13 @@ func (m *PeerManager) Disconnected(peerID types.NodeID) {
 	m.mtx.Lock()
 	defer m.mtx.Unlock()
 
+	switch m.connected[peerID] {
+	case peerConnectionIncoming:
+		m.metrics.PeersConnectedIncoming.Add(-1)
+	case peerConnectionOutgoing:
+		m.metrics.PeersConnectedOutgoing.Add(-1)
+	}
+
 	ready := m.ready[peerID]
 
 	delete(m.connected, peerID)
@@ -785,6 +896,22 @@ func (m *PeerManager) Disconnected(peerID types.NodeID) {
 	delete(m.evicting, peerID)
 	delete(m.ready, peerID)
 
+	if peer, ok := m.store.Get(peerID); ok {
+		peer.LastDisconnected = time.Now()
+		_ = m.store.Set(peer)
+		// launch a thread to ping the dialWaker when the
+		// disconnected peer can be dialed again.
+		go func() {
+			timer := time.NewTimer(m.options.DisconnectCooldownPeriod)
+			defer timer.Stop()
+			select {
+			case <-timer.C:
+				m.dialWaker.Wake()
+			case <-m.closeCh:
+			}
+		}()
+	}
+
 	if ready {
 		m.broadcast(PeerUpdate{
 			NodeID: peerID,
@@ -807,17 +934,34 @@ func (m *PeerManager) Errored(peerID types.NodeID, err error) {
 	m.mtx.Lock()
 	defer m.mtx.Unlock()
 
-	if m.connected[peerID] {
+	if m.isConnected(peerID) {
 		m.evict[peerID] = true
 	}
 
 	m.evictWaker.Wake()
 }
 
+// Inactivate marks a peer as inactive which means we won't attempt to
+// dial this peer again. A peer can be reactivated by successfully
+// dialing and connecting to the node.
+func (m *PeerManager) Inactivate(peerID types.NodeID) error {
+	m.mtx.Lock()
+	defer m.mtx.Unlock()
+
+	peer, ok := m.store.peers[peerID]
+	if !ok {
+		return nil
+	}
+
+	peer.Inactive = true
+	m.metrics.PeersInactivated.Add(1)
+	return m.store.Set(*peer)
+}
+
 // Advertise returns a list of peer addresses to advertise to a peer.
 //
-// FIXME: This is fairly naïve and only returns the addresses of the
-// highest-ranked peers.
+// It sorts all peers in the peer store, and assembles a list of peers
+// that is most likely to include the highest priority of peers.
 func (m *PeerManager) Advertise(peerID types.NodeID, limit uint16) []NodeAddress {
 	m.mtx.Lock()
 	defer m.mtx.Unlock()
@@ -830,19 +974,98 @@ func (m *PeerManager) Advertise(peerID types.NodeID, limit uint16) []NodeAddress
 		addresses = append(addresses, m.options.SelfAddress)
 	}
 
-	for _, peer := range m.store.Ranked() {
+	var numAddresses int
+	var totalAbsScore int
+	ranked := m.store.Ranked()
+	seenAddresses := map[NodeAddress]struct{}{}
+	scores := map[types.NodeID]int{}
+
+	// get the total number of possible addresses
+	for _, peer := range ranked {
 		if peer.ID == peerID {
 			continue
 		}
+		score := int(peer.Score())
+		if score < 0 {
+			totalAbsScore += -score
+		} else {
+			totalAbsScore += score
+		}
 
-		for nodeAddr, addressInfo := range peer.AddressInfo {
-			if len(addresses) >= int(limit) {
-				return addresses
+		scores[peer.ID] = score
+		for addr := range peer.AddressInfo {
+			if _, ok := m.options.PrivatePeers[addr.NodeID]; !ok {
+				numAddresses++
+			}
+		}
+	}
+
+	meanAbsScore := (totalAbsScore + 1) / (len(scores) + 1)
+
+	var attempts uint16
+	var addedLastIteration bool
+
+	// if the number of addresses is less than the number of peers
+	// to advertise, adjust the limit downwards
+	if numAddresses < int(limit) {
+		limit = uint16(numAddresses)
+	}
+
+	// collect addresses until we have the number requested
+	// (limit), or we've added all known addresses, or we've tried
+	// at least 256 times and the last time we iterated over
+	// remaining addresses we added no new candidates.
+	for len(addresses) < int(limit) && (attempts < (limit*2) || !addedLastIteration) {
+		attempts++
+		addedLastIteration = false
+
+		for idx, peer := range ranked {
+			if peer.ID == peerID {
+				continue
 			}
 
-			// only add non-private NodeIDs
-			if _, ok := m.options.PrivatePeers[nodeAddr.NodeID]; !ok {
-				addresses = append(addresses, addressInfo.Address)
+			if len(addresses) >= int(limit) {
+				break
+			}
+
+			for nodeAddr, addressInfo := range peer.AddressInfo {
+				if len(addresses) >= int(limit) {
+					break
+				}
+
+				// only look at each address once, by
+				// tracking a set of addresses seen
+				if _, ok := seenAddresses[addressInfo.Address]; ok {
+					continue
+				}
+
+				// only add non-private NodeIDs
+				if _, ok := m.options.PrivatePeers[nodeAddr.NodeID]; !ok {
+					// add the peer if the total number of ranked addresses is
+					// will fit within the limit, or otherwise adding
+					// addresses based on a coin flip.
+
+					// the coinflip is based on the score, commonly, but
+					// 10% of the time we'll randomly insert a "loosing"
+					// peer.
+
+					// nolint:gosec // G404: Use of weak random number generator
+					if numAddresses <= int(limit) || rand.Intn((meanAbsScore*2)+1) <= scores[peer.ID]+1 || rand.Intn((idx+1)*10) <= idx+1 {
+						addresses = append(addresses, addressInfo.Address)
+						addedLastIteration = true
+						seenAddresses[addressInfo.Address] = struct{}{}
+					}
+				} else {
+					seenAddresses[addressInfo.Address] = struct{}{}
+					// if the number of addresses
+					// is the same as the limit,
+					// we should remove private
+					// addresses from the limit so
+					// we can still return early.
+					if numAddresses == int(limit) {
+						limit--
+					}
+				}
 			}
 		}
 	}
@@ -912,8 +1135,14 @@ func (m *PeerManager) processPeerEvent(pu PeerUpdate) {
 
 	switch pu.Status {
 	case PeerStatusBad:
+		if m.store.peers[pu.NodeID].MutableScore == math.MinInt16 {
+			return
+		}
 		m.store.peers[pu.NodeID].MutableScore--
 	case PeerStatusGood:
+		if m.store.peers[pu.NodeID].MutableScore == math.MaxInt16 {
+			return
+		}
 		m.store.peers[pu.NodeID].MutableScore++
 	}
 }
@@ -1014,9 +1243,11 @@ func (m *PeerManager) findUpgradeCandidate(id types.NodeID, score PeerScore) typ
 	for i := len(ranked) - 1; i >= 0; i-- {
 		candidate := ranked[i]
 		switch {
+		case candidate.ID == id:
+			continue
 		case candidate.Score() >= score:
 			return "" // no further peers can be scored lower, due to sorting
-		case !m.connected[candidate.ID]:
+		case !m.isConnected(candidate.ID):
 		case m.evict[candidate.ID]:
 		case m.evicting[candidate.ID]:
 		case m.upgrading[candidate.ID] != "":
@@ -1055,37 +1286,6 @@ func (m *PeerManager) retryDelay(failures uint32, persistent bool) time.Duration
 	return delay
 }
 
-// GetHeight returns a peer's height, as reported via SetHeight, or 0 if the
-// peer or height is unknown.
-//
-// FIXME: This is a temporary workaround to share state between the consensus
-// and mempool reactors, carried over from the legacy P2P stack. Reactors should
-// not have dependencies on each other, instead tracking this themselves.
-func (m *PeerManager) GetHeight(peerID types.NodeID) int64 {
-	m.mtx.Lock()
-	defer m.mtx.Unlock()
-
-	peer, _ := m.store.Get(peerID)
-	return peer.Height
-}
-
-// SetHeight stores a peer's height, making it available via GetHeight.
-//
-// FIXME: This is a temporary workaround to share state between the consensus
-// and mempool reactors, carried over from the legacy P2P stack. Reactors should
-// not have dependencies on each other, instead tracking this themselves.
-func (m *PeerManager) SetHeight(peerID types.NodeID, height int64) error {
-	m.mtx.Lock()
-	defer m.mtx.Unlock()
-
-	peer, ok := m.store.Get(peerID)
-	if !ok {
-		peer = m.newPeerInfo(peerID)
-	}
-	peer.Height = height
-	return m.store.Set(peer)
-}
-
 // peerStore stores information about peers. It is not thread-safe, assuming it
 // is only used by PeerManager which handles concurrency control. This allows
 // the manager to execute multiple operations atomically via its own mutex.
@@ -1096,6 +1296,7 @@ func (m *PeerManager) SetHeight(peerID types.NodeID, height int64) error {
 type peerStore struct {
 	db     dbm.DB
 	peers  map[types.NodeID]*peerInfo
+	index  map[NodeAddress]types.NodeID
 	ranked []*peerInfo // cache for Ranked(), nil invalidates cache
 }
 
@@ -1115,6 +1316,7 @@ func newPeerStore(db dbm.DB) (*peerStore, error) {
 // loadPeers loads all peers from the database into memory.
 func (s *peerStore) loadPeers() error {
 	peers := map[types.NodeID]*peerInfo{}
+	addrs := map[NodeAddress]types.NodeID{}
 
 	start, end := keyPeerInfoRange()
 	iter, err := s.db.Iterator(start, end)
@@ -1134,11 +1336,18 @@ func (s *peerStore) loadPeers() error {
 			return fmt.Errorf("invalid peer data: %w", err)
 		}
 		peers[peer.ID] = peer
+		for addr := range peer.AddressInfo {
+			// TODO maybe check to see if we've seen this
+			// addr before for a different peer, there
+			// could be duplicates.
+			addrs[addr] = peer.ID
+		}
 	}
 	if iter.Error() != nil {
 		return iter.Error()
 	}
 	s.peers = peers
+	s.index = addrs
 	s.ranked = nil // invalidate cache if populated
 	return nil
 }
@@ -1150,6 +1359,12 @@ func (s *peerStore) Get(id types.NodeID) (peerInfo, bool) {
 	return peer.Copy(), ok
 }
 
+// Resolve returns the peer ID for a given node address if known.
+func (s *peerStore) Resolve(addr NodeAddress) (types.NodeID, bool) {
+	id, ok := s.index[addr]
+	return id, ok
+}
+
 // Set stores peer data. The input data will be copied, and can safely be reused
 // by the caller.
 func (s *peerStore) Set(peer peerInfo) error {
@@ -1178,20 +1393,29 @@ func (s *peerStore) Set(peer peerInfo) error {
 		// update the existing pointer address.
 		*current = peer
 	}
+	for addr := range peer.AddressInfo {
+		s.index[addr] = peer.ID
+	}
 
 	return nil
 }
 
 // Delete deletes a peer, or does nothing if it does not exist.
 func (s *peerStore) Delete(id types.NodeID) error {
-	if _, ok := s.peers[id]; !ok {
+	peer, ok := s.peers[id]
+	if !ok {
 		return nil
 	}
-	if err := s.db.Delete(keyPeerInfo(id)); err != nil {
-		return err
+	for _, addr := range peer.AddressInfo {
+		delete(s.index, addr.Address)
 	}
 	delete(s.peers, id)
 	s.ranked = nil
+
+	if err := s.db.Delete(keyPeerInfo(id)); err != nil {
+		return err
+	}
+
 	return nil
 }
 
@@ -1227,8 +1451,6 @@ func (s *peerStore) Ranked() []*peerInfo {
 		s.ranked = append(s.ranked, peer)
 	}
 	sort.Slice(s.ranked, func(i, j int) bool {
-		// FIXME: If necessary, consider precomputing scores before sorting,
-		// to reduce the number of Score() calls.
 		return s.ranked[i].Score() > s.ranked[j].Score()
 	})
 	return s.ranked
@@ -1241,17 +1463,18 @@ func (s *peerStore) Size() int {
 
 // peerInfo contains peer information stored in a peerStore.
 type peerInfo struct {
-	ID            types.NodeID
-	AddressInfo   map[NodeAddress]*peerAddressInfo
-	LastConnected time.Time
+	ID               types.NodeID
+	AddressInfo      map[NodeAddress]*peerAddressInfo
+	LastConnected    time.Time
+	LastDisconnected time.Time
 
 	// These fields are ephemeral, i.e. not persisted to the database.
 	Persistent bool
-	Seed       bool
 	Height     int64
 	FixedScore PeerScore // mainly for tests
 
 	MutableScore int64 // updated by router
+	Inactive     bool
 }
 
 // peerInfoFromProto converts a Protobuf PeerInfo message to a peerInfo,
@@ -1260,6 +1483,7 @@ func peerInfoFromProto(msg *p2pproto.PeerInfo) (*peerInfo, error) {
 	p := &peerInfo{
 		ID:          types.NodeID(msg.ID),
 		AddressInfo: map[NodeAddress]*peerAddressInfo{},
+		Inactive:    msg.Inactive,
 	}
 	if msg.LastConnected != nil {
 		p.LastConnected = *msg.LastConnected
@@ -1282,6 +1506,7 @@ func peerInfoFromProto(msg *p2pproto.PeerInfo) (*peerInfo, error) {
 func (p *peerInfo) ToProto() *p2pproto.PeerInfo {
 	msg := &p2pproto.PeerInfo{
 		ID:            string(p.ID),
+		Inactive:      p.Inactive,
 		LastConnected: &p.LastConnected,
 	}
 	for _, addressInfo := range p.AddressInfo {
@@ -1290,6 +1515,7 @@ func (p *peerInfo) ToProto() *p2pproto.PeerInfo {
 	if msg.LastConnected.IsZero() {
 		msg.LastConnected = nil
 	}
+
 	return msg
 }
 
@@ -1306,6 +1532,45 @@ func (p *peerInfo) Copy() peerInfo {
 	return c
 }
 
+// LastDialed returns when the peer was last dialed, and if that dial
+// attempt was successful. If the peer was never dialed the time stamp
+// is zero time.
+func (p *peerInfo) LastDialed() (time.Time, bool) {
+	var (
+		last    time.Time
+		success bool
+	)
+	last = last.Add(-1) // so it's after the epoch
+
+	for _, addr := range p.AddressInfo {
+		if addr.LastDialFailure.Equal(addr.LastDialSuccess) {
+			if addr.LastDialFailure.IsZero() {
+				continue
+			}
+			if last.After(addr.LastDialSuccess) {
+				continue
+			}
+			success = true
+			last = addr.LastDialSuccess
+		}
+		if addr.LastDialFailure.After(last) {
+			success = false
+			last = addr.LastDialFailure
+		}
+		if addr.LastDialSuccess.After(last) || last.Equal(addr.LastDialSuccess) {
+			success = true
+			last = addr.LastDialSuccess
+		}
+	}
+
+	// if we never modified last, then
+	if last.Add(1).IsZero() {
+		return time.Time{}, success
+	}
+
+	return last, success
+}
+
 // Score calculates a score for the peer. Higher-scored peers will be
 // preferred over lower scores.
 func (p *peerInfo) Score() PeerScore {
@@ -1324,12 +1589,8 @@ func (p *peerInfo) Score() PeerScore {
 		score -= int64(addr.DialFailures)
 	}
 
-	if score <= 0 {
-		return 0
-	}
-
-	if score >= math.MaxUint8 {
-		return PeerScore(math.MaxUint8)
+	if score < math.MinInt16 {
+		score = math.MinInt16
 	}
 
 	return PeerScore(score)

internal/p2p/peermanager_scoring_test.go

@@ -31,7 +31,7 @@ func TestPeerScoring(t *testing.T) {
 
 	t.Run("Synchronous", func(t *testing.T) {
 		// update the manager and make sure it's correct
-		require.EqualValues(t, 0, peerManager.Scores()[id])
+		require.Zero(t, peerManager.Scores()[id])
 
 		// add a bunch of good status updates and watch things increase.
 		for i := 1; i < 10; i++ {
@@ -80,3 +80,173 @@ func TestPeerScoring(t *testing.T) {
 			"startAt=%d score=%d", start, peerManager.Scores()[id])
 	})
 }
+
+func makeMockPeerStore(t *testing.T, peers ...peerInfo) *peerStore {
+	t.Helper()
+	s, err := newPeerStore(dbm.NewMemDB())
+	if err != nil {
+		t.Fatal(err)
+	}
+	for idx := range peers {
+		if err := s.Set(peers[idx]); err != nil {
+			t.Fatal(err)
+		}
+	}
+	return s
+}
+
+func TestPeerRanking(t *testing.T) {
+	t.Run("InactiveSecond", func(t *testing.T) {
+		t.Skip("inactive status is not currently factored into peer rank.")
+
+		store := makeMockPeerStore(t,
+			peerInfo{ID: "second", Inactive: true},
+			peerInfo{ID: "first", Inactive: false},
+		)
+
+		ranked := store.Ranked()
+		if len(ranked) != 2 {
+			t.Fatal("missing peer in ranked output")
+		}
+		if ranked[0].ID != "first" {
+			t.Error("inactive peer is first")
+		}
+		if ranked[1].ID != "second" {
+			t.Error("active peer is second")
+		}
+	})
+	t.Run("ScoreOrder", func(t *testing.T) {
+		for _, test := range []struct {
+			Name   string
+			First  int64
+			Second int64
+		}{
+			{
+				Name:   "Mirror",
+				First:  100,
+				Second: -100,
+			},
+			{
+				Name:   "VeryLow",
+				First:  0,
+				Second: -100,
+			},
+			{
+				Name:   "High",
+				First:  300,
+				Second: 256,
+			},
+		} {
+			t.Run(test.Name, func(t *testing.T) {
+				store := makeMockPeerStore(t,
+					peerInfo{
+						ID:           "second",
+						MutableScore: test.Second,
+					},
+					peerInfo{
+						ID:           "first",
+						MutableScore: test.First,
+					})
+
+				ranked := store.Ranked()
+				if len(ranked) != 2 {
+					t.Fatal("missing peer in ranked output")
+				}
+				if ranked[0].ID != "first" {
+					t.Error("higher peer is first")
+				}
+				if ranked[1].ID != "second" {
+					t.Error("higher peer is second")
+				}
+			})
+		}
+	})
+}
+
+func TestLastDialed(t *testing.T) {
+	t.Run("Zero", func(t *testing.T) {
+		p := &peerInfo{}
+		ts, ok := p.LastDialed()
+		if !ts.IsZero() {
+			t.Error("timestamp should be zero:", ts)
+		}
+		if ok {
+			t.Error("peer reported success, despite none")
+		}
+	})
+	t.Run("NeverDialed", func(t *testing.T) {
+		p := &peerInfo{
+			AddressInfo: map[NodeAddress]*peerAddressInfo{
+				{NodeID: "kip"}:    {},
+				{NodeID: "merlin"}: {},
+			},
+		}
+		ts, ok := p.LastDialed()
+		if !ts.IsZero() {
+			t.Error("timestamp should be zero:", ts)
+		}
+		if ok {
+			t.Error("peer reported success, despite none")
+		}
+	})
+	t.Run("Ordered", func(t *testing.T) {
+		base := time.Now()
+		for _, test := range []struct {
+			Name            string
+			SuccessTime     time.Time
+			FailTime        time.Time
+			ExpectedSuccess bool
+		}{
+			{
+				Name: "Zero",
+			},
+			{
+				Name:            "Success",
+				SuccessTime:     base.Add(time.Hour),
+				FailTime:        base,
+				ExpectedSuccess: true,
+			},
+			{
+				Name:            "Equal",
+				SuccessTime:     base,
+				FailTime:        base,
+				ExpectedSuccess: true,
+			},
+			{
+				Name:            "Failure",
+				SuccessTime:     base,
+				FailTime:        base.Add(time.Hour),
+				ExpectedSuccess: false,
+			},
+		} {
+			t.Run(test.Name, func(t *testing.T) {
+				p := &peerInfo{
+					AddressInfo: map[NodeAddress]*peerAddressInfo{
+						{NodeID: "kip"}:    {LastDialSuccess: test.SuccessTime},
+						{NodeID: "merlin"}: {LastDialFailure: test.FailTime},
+					},
+				}
+				ts, ok := p.LastDialed()
+				if test.ExpectedSuccess && !ts.Equal(test.SuccessTime) {
+					if !ts.Equal(test.FailTime) {
+						t.Fatal("got unexpected timestamp:", ts)
+					}
+
+					t.Error("last dialed time reported incorrect value:", ts)
+				}
+				if !test.ExpectedSuccess && !ts.Equal(test.FailTime) {
+					if !ts.Equal(test.SuccessTime) {
+						t.Fatal("got unexpected timestamp:", ts)
+					}
+
+					t.Error("last dialed time reported incorrect value:", ts)
+				}
+				if test.ExpectedSuccess != ok {
+					t.Error("test reported incorrect outcome for last dialed type")
+				}
+			})
+		}
+
+	})
+
+}

internal/p2p/peermanager_test.go

@@ -378,16 +378,14 @@ func TestPeerManager_DialNext_WakeOnDialFailed(t *testing.T) {
 	added, err := peerManager.Add(a)
 	require.NoError(t, err)
 	require.True(t, added)
-	dial, err := peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial := peerManager.TryDialNext()
 	require.Equal(t, a, dial)
 
 	// Add b. We shouldn't be able to dial it, due to MaxConnected.
 	added, err = peerManager.Add(b)
 	require.NoError(t, err)
 	require.True(t, added)
-	dial, err = peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial = peerManager.TryDialNext()
 	require.Zero(t, dial)
 
 	// Spawn a goroutine to fail a's dial attempt.
@@ -415,8 +413,7 @@ func TestPeerManager_DialNext_WakeOnDialFailedRetry(t *testing.T) {
 	added, err := peerManager.Add(a)
 	require.NoError(t, err)
 	require.True(t, added)
-	dial, err := peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial := peerManager.TryDialNext()
 	require.Equal(t, a, dial)
 	require.NoError(t, peerManager.DialFailed(dial))
 	failed := time.Now()
@@ -443,8 +440,7 @@ func TestPeerManager_DialNext_WakeOnDisconnected(t *testing.T) {
 	err = peerManager.Accepted(a.NodeID)
 	require.NoError(t, err)
 
-	dial, err := peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial := peerManager.TryDialNext()
 	require.Zero(t, dial)
 
 	go func() {
@@ -473,8 +469,7 @@ func TestPeerManager_TryDialNext_MaxConnected(t *testing.T) {
 	added, err := peerManager.Add(a)
 	require.NoError(t, err)
 	require.True(t, added)
-	dial, err := peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial := peerManager.TryDialNext()
 	require.Equal(t, a, dial)
 	require.NoError(t, peerManager.Dialed(a))
 
@@ -482,16 +477,14 @@ func TestPeerManager_TryDialNext_MaxConnected(t *testing.T) {
 	added, err = peerManager.Add(b)
 	require.NoError(t, err)
 	require.True(t, added)
-	dial, err = peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial = peerManager.TryDialNext()
 	require.Equal(t, b, dial)
 
 	// At this point, adding c will not allow dialing it.
 	added, err = peerManager.Add(c)
 	require.NoError(t, err)
 	require.True(t, added)
-	dial, err = peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial = peerManager.TryDialNext()
 	require.Zero(t, dial)
 }
 
@@ -504,11 +497,11 @@ func TestPeerManager_TryDialNext_MaxConnectedUpgrade(t *testing.T) {
 
 	peerManager, err := p2p.NewPeerManager(selfID, dbm.NewMemDB(), p2p.PeerManagerOptions{
 		PeerScores: map[types.NodeID]p2p.PeerScore{
-			a.NodeID: 0,
-			b.NodeID: 1,
-			c.NodeID: 2,
-			d.NodeID: 3,
-			e.NodeID: 0,
+			a.NodeID: p2p.PeerScore(0),
+			b.NodeID: p2p.PeerScore(1),
+			c.NodeID: p2p.PeerScore(2),
+			d.NodeID: p2p.PeerScore(3),
+			e.NodeID: p2p.PeerScore(0),
 		},
 		PersistentPeers:     []types.NodeID{c.NodeID, d.NodeID},
 		MaxConnected:        2,
@@ -520,7 +513,7 @@ func TestPeerManager_TryDialNext_MaxConnectedUpgrade(t *testing.T) {
 	added, err := peerManager.Add(a)
 	require.NoError(t, err)
 	require.True(t, added)
-	dial, err := peerManager.TryDialNext()
+	dial := peerManager.TryDialNext()
 	require.NoError(t, err)
 	require.Equal(t, a, dial)
 	require.NoError(t, peerManager.Dialed(a))
@@ -529,8 +522,7 @@ func TestPeerManager_TryDialNext_MaxConnectedUpgrade(t *testing.T) {
 	added, err = peerManager.Add(b)
 	require.NoError(t, err)
 	require.True(t, added)
-	dial, err = peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial = peerManager.TryDialNext()
 	require.Equal(t, b, dial)
 
 	// Even though we are at capacity, we should be allowed to dial c for an
@@ -538,8 +530,7 @@ func TestPeerManager_TryDialNext_MaxConnectedUpgrade(t *testing.T) {
 	added, err = peerManager.Add(c)
 	require.NoError(t, err)
 	require.True(t, added)
-	dial, err = peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial = peerManager.TryDialNext()
 	require.Equal(t, c, dial)
 
 	// However, since we're using all upgrade slots now, we can't add and dial
@@ -547,24 +538,20 @@ func TestPeerManager_TryDialNext_MaxConnectedUpgrade(t *testing.T) {
 	added, err = peerManager.Add(d)
 	require.NoError(t, err)
 	require.True(t, added)
-	dial, err = peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial = peerManager.TryDialNext()
 	require.Zero(t, dial)
 
 	// We go through with c's upgrade.
 	require.NoError(t, peerManager.Dialed(c))
 
 	// Still can't dial d.
-	dial, err = peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial = peerManager.TryDialNext()
 	require.Zero(t, dial)
 
 	// Now, if we disconnect a, we should be allowed to dial d because we have a
 	// free upgrade slot.
+	require.Error(t, peerManager.Dialed(d))
 	peerManager.Disconnected(a.NodeID)
-	dial, err = peerManager.TryDialNext()
-	require.NoError(t, err)
-	require.Equal(t, d, dial)
 	require.NoError(t, peerManager.Dialed(d))
 
 	// However, if we disconnect b (such that only c and d are connected), we
@@ -574,8 +561,7 @@ func TestPeerManager_TryDialNext_MaxConnectedUpgrade(t *testing.T) {
 	added, err = peerManager.Add(e)
 	require.NoError(t, err)
 	require.True(t, added)
-	dial, err = peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial = peerManager.TryDialNext()
 	require.Zero(t, dial)
 }
 
@@ -585,7 +571,7 @@ func TestPeerManager_TryDialNext_UpgradeReservesPeer(t *testing.T) {
 	c := p2p.NodeAddress{Protocol: "memory", NodeID: types.NodeID(strings.Repeat("c", 40))}
 
 	peerManager, err := p2p.NewPeerManager(selfID, dbm.NewMemDB(), p2p.PeerManagerOptions{
-		PeerScores:          map[types.NodeID]p2p.PeerScore{b.NodeID: 1, c.NodeID: 1},
+		PeerScores:          map[types.NodeID]p2p.PeerScore{b.NodeID: p2p.PeerScore(1), c.NodeID: 1},
 		MaxConnected:        1,
 		MaxConnectedUpgrade: 2,
 	})
@@ -595,8 +581,7 @@ func TestPeerManager_TryDialNext_UpgradeReservesPeer(t *testing.T) {
 	added, err := peerManager.Add(a)
 	require.NoError(t, err)
 	require.True(t, added)
-	dial, err := peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial := peerManager.TryDialNext()
 	require.Equal(t, a, dial)
 	require.NoError(t, peerManager.Dialed(a))
 
@@ -604,8 +589,7 @@ func TestPeerManager_TryDialNext_UpgradeReservesPeer(t *testing.T) {
 	added, err = peerManager.Add(b)
 	require.NoError(t, err)
 	require.True(t, added)
-	dial, err = peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial = peerManager.TryDialNext()
 	require.Equal(t, b, dial)
 
 	// Adding c and dialing it will fail, because a is the only connected
@@ -613,8 +597,7 @@ func TestPeerManager_TryDialNext_UpgradeReservesPeer(t *testing.T) {
 	added, err = peerManager.Add(c)
 	require.NoError(t, err)
 	require.True(t, added)
-	dial, err = peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial = peerManager.TryDialNext()
 	require.Empty(t, dial)
 }
 
@@ -635,22 +618,19 @@ func TestPeerManager_TryDialNext_DialingConnected(t *testing.T) {
 	added, err := peerManager.Add(a)
 	require.NoError(t, err)
 	require.True(t, added)
-	dial, err := peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial := peerManager.TryDialNext()
 	require.Equal(t, a, dial)
 
 	// Adding a's TCP address will not dispense a, since it's already dialing.
 	added, err = peerManager.Add(aTCP)
 	require.NoError(t, err)
 	require.True(t, added)
-	dial, err = peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial = peerManager.TryDialNext()
 	require.Zero(t, dial)
 
 	// Marking a as dialed will still not dispense it.
 	require.NoError(t, peerManager.Dialed(a))
-	dial, err = peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial = peerManager.TryDialNext()
 	require.Zero(t, dial)
 
 	// Adding b and accepting a connection from it will not dispense it either.
@@ -658,8 +638,7 @@ func TestPeerManager_TryDialNext_DialingConnected(t *testing.T) {
 	require.NoError(t, err)
 	require.True(t, added)
 	require.NoError(t, peerManager.Accepted(bID))
-	dial, err = peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial = peerManager.TryDialNext()
 	require.Zero(t, dial)
 }
 
@@ -685,16 +664,14 @@ func TestPeerManager_TryDialNext_Multiple(t *testing.T) {
 	// All addresses should be dispensed as long as dialing them has failed.
 	dial := []p2p.NodeAddress{}
 	for range addresses {
-		address, err := peerManager.TryDialNext()
-		require.NoError(t, err)
+		address := peerManager.TryDialNext()
 		require.NotZero(t, address)
 		require.NoError(t, peerManager.DialFailed(address))
 		dial = append(dial, address)
 	}
 	require.ElementsMatch(t, dial, addresses)
 
-	address, err := peerManager.TryDialNext()
-	require.NoError(t, err)
+	address := peerManager.TryDialNext()
 	require.Zero(t, address)
 }
 
@@ -716,15 +693,14 @@ func TestPeerManager_DialFailed(t *testing.T) {
 	// Dialing and then calling DialFailed with a different address (same
 	// NodeID) should unmark as dialing and allow us to dial the other address
 	// again, but not register the failed address.
-	dial, err := peerManager.TryDialNext()
+	dial := peerManager.TryDialNext()
 	require.NoError(t, err)
 	require.Equal(t, a, dial)
 	require.NoError(t, peerManager.DialFailed(p2p.NodeAddress{
 		Protocol: "tcp", NodeID: aID, Hostname: "localhost"}))
 	require.Equal(t, []p2p.NodeAddress{a}, peerManager.Addresses(aID))
 
-	dial, err = peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial = peerManager.TryDialNext()
 	require.Equal(t, a, dial)
 
 	// Calling DialFailed on same address twice should be fine.
@@ -742,7 +718,10 @@ func TestPeerManager_DialFailed_UnreservePeer(t *testing.T) {
 	c := p2p.NodeAddress{Protocol: "memory", NodeID: types.NodeID(strings.Repeat("c", 40))}
 
 	peerManager, err := p2p.NewPeerManager(selfID, dbm.NewMemDB(), p2p.PeerManagerOptions{
-		PeerScores:          map[types.NodeID]p2p.PeerScore{b.NodeID: 1, c.NodeID: 1},
+		PeerScores: map[types.NodeID]p2p.PeerScore{
+			b.NodeID: p2p.PeerScore(1),
+			c.NodeID: p2p.PeerScore(2),
+		},
 		MaxConnected:        1,
 		MaxConnectedUpgrade: 2,
 	})
@@ -752,8 +731,7 @@ func TestPeerManager_DialFailed_UnreservePeer(t *testing.T) {
 	added, err := peerManager.Add(a)
 	require.NoError(t, err)
 	require.True(t, added)
-	dial, err := peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial := peerManager.TryDialNext()
 	require.Equal(t, a, dial)
 	require.NoError(t, peerManager.Dialed(a))
 
@@ -761,8 +739,7 @@ func TestPeerManager_DialFailed_UnreservePeer(t *testing.T) {
 	added, err = peerManager.Add(b)
 	require.NoError(t, err)
 	require.True(t, added)
-	dial, err = peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial = peerManager.TryDialNext()
 	require.Equal(t, b, dial)
 
 	// Adding c and dialing it will fail, even though it could upgrade a and we
@@ -771,14 +748,12 @@ func TestPeerManager_DialFailed_UnreservePeer(t *testing.T) {
 	added, err = peerManager.Add(c)
 	require.NoError(t, err)
 	require.True(t, added)
-	dial, err = peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial = peerManager.TryDialNext()
 	require.Empty(t, dial)
 
 	// Failing b's dial will now make c available for dialing.
 	require.NoError(t, peerManager.DialFailed(b))
-	dial, err = peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial = peerManager.TryDialNext()
 	require.Equal(t, c, dial)
 }
 
@@ -793,8 +768,7 @@ func TestPeerManager_Dialed_Connected(t *testing.T) {
 	added, err := peerManager.Add(a)
 	require.NoError(t, err)
 	require.True(t, added)
-	dial, err := peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial := peerManager.TryDialNext()
 	require.Equal(t, a, dial)
 
 	require.NoError(t, peerManager.Dialed(a))
@@ -804,8 +778,7 @@ func TestPeerManager_Dialed_Connected(t *testing.T) {
 	added, err = peerManager.Add(b)
 	require.NoError(t, err)
 	require.True(t, added)
-	dial, err = peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial = peerManager.TryDialNext()
 	require.Equal(t, b, dial)
 
 	require.NoError(t, peerManager.Accepted(b.NodeID))
@@ -834,8 +807,7 @@ func TestPeerManager_Dialed_MaxConnected(t *testing.T) {
 	added, err := peerManager.Add(a)
 	require.NoError(t, err)
 	require.True(t, added)
-	dial, err := peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial := peerManager.TryDialNext()
 	require.Equal(t, a, dial)
 
 	// Marking b as dialed in the meanwhile (even without TryDialNext)
@@ -858,7 +830,7 @@ func TestPeerManager_Dialed_MaxConnectedUpgrade(t *testing.T) {
 	peerManager, err := p2p.NewPeerManager(selfID, dbm.NewMemDB(), p2p.PeerManagerOptions{
 		MaxConnected:        2,
 		MaxConnectedUpgrade: 1,
-		PeerScores:          map[types.NodeID]p2p.PeerScore{c.NodeID: 1, d.NodeID: 1},
+		PeerScores:          map[types.NodeID]p2p.PeerScore{c.NodeID: p2p.PeerScore(1), d.NodeID: 1},
 	})
 	require.NoError(t, err)
 
@@ -877,8 +849,7 @@ func TestPeerManager_Dialed_MaxConnectedUpgrade(t *testing.T) {
 	added, err = peerManager.Add(c)
 	require.NoError(t, err)
 	require.True(t, added)
-	dial, err := peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial := peerManager.TryDialNext()
 	require.Equal(t, c, dial)
 	require.NoError(t, peerManager.Dialed(c))
 
@@ -908,7 +879,7 @@ func TestPeerManager_Dialed_Upgrade(t *testing.T) {
 	peerManager, err := p2p.NewPeerManager(selfID, dbm.NewMemDB(), p2p.PeerManagerOptions{
 		MaxConnected:        1,
 		MaxConnectedUpgrade: 2,
-		PeerScores:          map[types.NodeID]p2p.PeerScore{b.NodeID: 1, c.NodeID: 1},
+		PeerScores:          map[types.NodeID]p2p.PeerScore{b.NodeID: p2p.PeerScore(1), c.NodeID: 1},
 	})
 	require.NoError(t, err)
 
@@ -922,8 +893,7 @@ func TestPeerManager_Dialed_Upgrade(t *testing.T) {
 	added, err = peerManager.Add(b)
 	require.NoError(t, err)
 	require.True(t, added)
-	dial, err := peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial := peerManager.TryDialNext()
 	require.Equal(t, b, dial)
 	require.NoError(t, peerManager.Dialed(b))
 
@@ -932,8 +902,7 @@ func TestPeerManager_Dialed_Upgrade(t *testing.T) {
 	added, err = peerManager.Add(c)
 	require.NoError(t, err)
 	require.True(t, added)
-	dial, err = peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial = peerManager.TryDialNext()
 	require.Empty(t, dial)
 
 	// a should now be evicted.
@@ -952,10 +921,10 @@ func TestPeerManager_Dialed_UpgradeEvenLower(t *testing.T) {
 		MaxConnected:        2,
 		MaxConnectedUpgrade: 1,
 		PeerScores: map[types.NodeID]p2p.PeerScore{
-			a.NodeID: 3,
-			b.NodeID: 2,
-			c.NodeID: 10,
-			d.NodeID: 1,
+			a.NodeID: p2p.PeerScore(3),
+			b.NodeID: p2p.PeerScore(2),
+			c.NodeID: p2p.PeerScore(10),
+			d.NodeID: p2p.PeerScore(1),
 		},
 	})
 	require.NoError(t, err)
@@ -976,8 +945,7 @@ func TestPeerManager_Dialed_UpgradeEvenLower(t *testing.T) {
 	added, err = peerManager.Add(c)
 	require.NoError(t, err)
 	require.True(t, added)
-	dial, err := peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial := peerManager.TryDialNext()
 	require.Equal(t, c, dial)
 
 	// In the meanwhile, a disconnects and d connects. d is even lower-scored
@@ -1005,9 +973,9 @@ func TestPeerManager_Dialed_UpgradeNoEvict(t *testing.T) {
 		MaxConnected:        2,
 		MaxConnectedUpgrade: 1,
 		PeerScores: map[types.NodeID]p2p.PeerScore{
-			a.NodeID: 1,
-			b.NodeID: 2,
-			c.NodeID: 3,
+			a.NodeID: p2p.PeerScore(1),
+			b.NodeID: p2p.PeerScore(2),
+			c.NodeID: p2p.PeerScore(3),
 		},
 	})
 	require.NoError(t, err)
@@ -1027,7 +995,7 @@ func TestPeerManager_Dialed_UpgradeNoEvict(t *testing.T) {
 	added, err = peerManager.Add(c)
 	require.NoError(t, err)
 	require.True(t, added)
-	dial, err := peerManager.TryDialNext()
+	dial := peerManager.TryDialNext()
 	require.NoError(t, err)
 	require.Equal(t, c, dial)
 
@@ -1073,8 +1041,7 @@ func TestPeerManager_Accepted(t *testing.T) {
 	added, err = peerManager.Add(c)
 	require.NoError(t, err)
 	require.True(t, added)
-	dial, err := peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial := peerManager.TryDialNext()
 	require.Equal(t, c, dial)
 	require.NoError(t, peerManager.Accepted(c.NodeID))
 	require.Error(t, peerManager.Dialed(c))
@@ -1083,8 +1050,7 @@ func TestPeerManager_Accepted(t *testing.T) {
 	added, err = peerManager.Add(d)
 	require.NoError(t, err)
 	require.True(t, added)
-	dial, err = peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial = peerManager.TryDialNext()
 	require.Equal(t, d, dial)
 	require.NoError(t, peerManager.Dialed(d))
 	require.Error(t, peerManager.Accepted(d.NodeID))
@@ -1126,8 +1092,8 @@ func TestPeerManager_Accepted_MaxConnectedUpgrade(t *testing.T) {
 
 	peerManager, err := p2p.NewPeerManager(selfID, dbm.NewMemDB(), p2p.PeerManagerOptions{
 		PeerScores: map[types.NodeID]p2p.PeerScore{
-			c.NodeID: 1,
-			d.NodeID: 2,
+			c.NodeID: p2p.PeerScore(1),
+			d.NodeID: p2p.PeerScore(2),
 		},
 		MaxConnected:        1,
 		MaxConnectedUpgrade: 1,
@@ -1171,8 +1137,8 @@ func TestPeerManager_Accepted_Upgrade(t *testing.T) {
 
 	peerManager, err := p2p.NewPeerManager(selfID, dbm.NewMemDB(), p2p.PeerManagerOptions{
 		PeerScores: map[types.NodeID]p2p.PeerScore{
-			b.NodeID: 1,
-			c.NodeID: 1,
+			b.NodeID: p2p.PeerScore(1),
+			c.NodeID: p2p.PeerScore(1),
 		},
 		MaxConnected:        1,
 		MaxConnectedUpgrade: 2,
@@ -1214,8 +1180,8 @@ func TestPeerManager_Accepted_UpgradeDialing(t *testing.T) {
 
 	peerManager, err := p2p.NewPeerManager(selfID, dbm.NewMemDB(), p2p.PeerManagerOptions{
 		PeerScores: map[types.NodeID]p2p.PeerScore{
-			b.NodeID: 1,
-			c.NodeID: 1,
+			b.NodeID: p2p.PeerScore(1),
+			c.NodeID: p2p.PeerScore(1),
 		},
 		MaxConnected:        1,
 		MaxConnectedUpgrade: 2,
@@ -1232,8 +1198,7 @@ func TestPeerManager_Accepted_UpgradeDialing(t *testing.T) {
 	added, err = peerManager.Add(b)
 	require.NoError(t, err)
 	require.True(t, added)
-	dial, err := peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial := peerManager.TryDialNext()
 	require.Equal(t, b, dial)
 
 	// a has already been claimed as an upgrade of a, so accepting
@@ -1376,7 +1341,7 @@ func TestPeerManager_EvictNext_WakeOnUpgradeDialed(t *testing.T) {
 	peerManager, err := p2p.NewPeerManager(selfID, dbm.NewMemDB(), p2p.PeerManagerOptions{
 		MaxConnected:        1,
 		MaxConnectedUpgrade: 1,
-		PeerScores:          map[types.NodeID]p2p.PeerScore{b.NodeID: 1},
+		PeerScores:          map[types.NodeID]p2p.PeerScore{b.NodeID: p2p.PeerScore(1)},
 	})
 	require.NoError(t, err)
 
@@ -1393,8 +1358,7 @@ func TestPeerManager_EvictNext_WakeOnUpgradeDialed(t *testing.T) {
 		added, err := peerManager.Add(b)
 		require.NoError(t, err)
 		require.True(t, added)
-		dial, err := peerManager.TryDialNext()
-		require.NoError(t, err)
+		dial := peerManager.TryDialNext()
 		require.Equal(t, b, dial)
 		require.NoError(t, peerManager.Dialed(b))
 	}()
@@ -1414,7 +1378,9 @@ func TestPeerManager_EvictNext_WakeOnUpgradeAccepted(t *testing.T) {
 	peerManager, err := p2p.NewPeerManager(selfID, dbm.NewMemDB(), p2p.PeerManagerOptions{
 		MaxConnected:        1,
 		MaxConnectedUpgrade: 1,
-		PeerScores:          map[types.NodeID]p2p.PeerScore{b.NodeID: 1},
+		PeerScores: map[types.NodeID]p2p.PeerScore{
+			b.NodeID: p2p.PeerScore(1),
+		},
 	})
 	require.NoError(t, err)
 
@@ -1518,13 +1484,11 @@ func TestPeerManager_Disconnected(t *testing.T) {
 
 	// Disconnecting a dialing peer does not unmark it as dialing, to avoid
 	// dialing it multiple times in parallel.
-	dial, err := peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial := peerManager.TryDialNext()
 	require.Equal(t, a, dial)
 
 	peerManager.Disconnected(a.NodeID)
-	dial, err = peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial = peerManager.TryDialNext()
 	require.Zero(t, dial)
 }
 
@@ -1592,8 +1556,7 @@ func TestPeerManager_Subscribe(t *testing.T) {
 	require.Equal(t, p2p.PeerUpdate{NodeID: a.NodeID, Status: p2p.PeerStatusDown}, <-sub.Updates())
 
 	// Outbound connection with peer error and eviction.
-	dial, err := peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial := peerManager.TryDialNext()
 	require.Equal(t, a, dial)
 	require.Empty(t, sub.Updates())
 
@@ -1616,8 +1579,7 @@ func TestPeerManager_Subscribe(t *testing.T) {
 	require.Equal(t, p2p.PeerUpdate{NodeID: a.NodeID, Status: p2p.PeerStatusDown}, <-sub.Updates())
 
 	// Outbound connection with dial failure.
-	dial, err = peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial = peerManager.TryDialNext()
 	require.Equal(t, a, dial)
 	require.Empty(t, sub.Updates())
 
@@ -1713,8 +1675,7 @@ func TestPeerManager_Close(t *testing.T) {
 	added, err := peerManager.Add(a)
 	require.NoError(t, err)
 	require.True(t, added)
-	dial, err := peerManager.TryDialNext()
-	require.NoError(t, err)
+	dial := peerManager.TryDialNext()
 	require.Equal(t, a, dial)
 	require.NoError(t, peerManager.DialFailed(a))
 
@@ -1763,6 +1724,7 @@ func TestPeerManager_Advertise(t *testing.T) {
 	require.NoError(t, err)
 	require.True(t, added)
 
+	require.Len(t, peerManager.Advertise(dID, 100), 6)
 	// d should get all addresses.
 	require.ElementsMatch(t, []p2p.NodeAddress{
 		aTCP, aMem, bTCP, bMem, cTCP, cMem,
@@ -1776,10 +1738,24 @@ func TestPeerManager_Advertise(t *testing.T) {
 	// Asking for 0 addresses should return, well, 0.
 	require.Empty(t, peerManager.Advertise(aID, 0))
 
-	// Asking for 2 addresses should get the highest-rated ones, i.e. a.
-	require.ElementsMatch(t, []p2p.NodeAddress{
-		aTCP, aMem,
-	}, peerManager.Advertise(dID, 2))
+	// Asking for 2 addresses should get two addresses
+	// and usually not the lowest ranked one
+	numLowestRanked := 0
+	for i := 0; i < 100; i++ {
+		addrs := peerManager.Advertise(dID, 2)
+		require.Len(t, addrs, 2)
+		for _, addr := range addrs {
+			if dID == addr.NodeID {
+				t.Fatal("never advertise self")
+			}
+			if cID == addr.NodeID {
+				numLowestRanked++
+			}
+		}
+	}
+	if numLowestRanked > 20 {
+		t.Errorf("lowest ranked peer returned in results too often: %d", numLowestRanked)
+	}
 }
 
 func TestPeerManager_Advertise_Self(t *testing.T) {
@@ -1799,39 +1775,3 @@ func TestPeerManager_Advertise_Self(t *testing.T) {
 		self,
 	}, peerManager.Advertise(dID, 100))
 }
-
-func TestPeerManager_SetHeight_GetHeight(t *testing.T) {
-	a := p2p.NodeAddress{Protocol: "memory", NodeID: types.NodeID(strings.Repeat("a", 40))}
-	b := p2p.NodeAddress{Protocol: "memory", NodeID: types.NodeID(strings.Repeat("b", 40))}
-
-	db := dbm.NewMemDB()
-	peerManager, err := p2p.NewPeerManager(selfID, db, p2p.PeerManagerOptions{})
-	require.NoError(t, err)
-
-	// Getting a height should default to 0, for unknown peers and
-	// for known peers without height.
-	added, err := peerManager.Add(a)
-	require.NoError(t, err)
-	require.True(t, added)
-	require.EqualValues(t, 0, peerManager.GetHeight(a.NodeID))
-	require.EqualValues(t, 0, peerManager.GetHeight(b.NodeID))
-
-	// Setting a height should work for a known node.
-	require.NoError(t, peerManager.SetHeight(a.NodeID, 3))
-	require.EqualValues(t, 3, peerManager.GetHeight(a.NodeID))
-
-	// Setting a height should add an unknown node.
-	require.Equal(t, []types.NodeID{a.NodeID}, peerManager.Peers())
-	require.NoError(t, peerManager.SetHeight(b.NodeID, 7))
-	require.EqualValues(t, 7, peerManager.GetHeight(b.NodeID))
-	require.ElementsMatch(t, []types.NodeID{a.NodeID, b.NodeID}, peerManager.Peers())
-
-	// The heights should not be persisted.
-	peerManager.Close()
-	peerManager, err = p2p.NewPeerManager(selfID, db, p2p.PeerManagerOptions{})
-	require.NoError(t, err)
-
-	require.ElementsMatch(t, []types.NodeID{a.NodeID, b.NodeID}, peerManager.Peers())
-	require.Zero(t, peerManager.GetHeight(a.NodeID))
-	require.Zero(t, peerManager.GetHeight(b.NodeID))
-}

internal/p2p/pex/params.go

@@ -51,5 +51,5 @@ const (
 
 	// max addresses returned by GetSelection
 	// NOTE: this must match "maxMsgSize"
-	maxGetSelection = 250
+	maxGetSelection = 100
 )

internal/p2p/pex/pex_reactor.go

@@ -102,12 +102,6 @@ type Reactor struct {
 	crawlPeerInfos map[types.NodeID]crawlPeerInfo
 }
 
-func (r *Reactor) minReceiveRequestInterval() time.Duration {
-	// NOTE: must be less than ensurePeersPeriod, otherwise we'll request
-	// peers too quickly from others and they'll think we're bad!
-	return r.ensurePeersPeriod / 3
-}
-
 // ReactorConfig holds reactor specific configuration data.
 type ReactorConfig struct {
 	// Seed/Crawler mode
@@ -331,7 +325,7 @@ func (r *Reactor) receiveRequest(src Peer) error {
 	}
 
 	now := time.Now()
-	minInterval := r.minReceiveRequestInterval()
+	minInterval := minReceiveRequestInterval
 	if now.Sub(lastReceived) < minInterval {
 		return fmt.Errorf(
 			"peer (%v) sent next PEX request too soon. lastReceived: %v, now: %v, minInterval: %v. Disconnecting",

internal/p2p/pex/reactor.go

@@ -24,7 +24,7 @@ var (
 // See https://github.com/tendermint/tendermint/issues/6371
 const (
 	// the minimum time one peer can send another request to the same peer
-	minReceiveRequestInterval = 100 * time.Millisecond
+	minReceiveRequestInterval = 200 * time.Millisecond
 
 	// the maximum amount of addresses that can be included in a response
 	maxAddresses uint16 = 100

internal/p2p/pqueue.go

@@ -29,8 +29,16 @@ func (pq priorityQueue) get(i int) *pqEnvelope { return pq[i] }
 func (pq priorityQueue) Len() int              { return len(pq) }
 
 func (pq priorityQueue) Less(i, j int) bool {
-	// if both elements have the same priority, prioritize based on most recent
+	// if both elements have the same priority, prioritize based
+	// on most recent and largest
 	if pq[i].priority == pq[j].priority {
+		diff := pq[i].timestamp.Sub(pq[j].timestamp)
+		if diff < 0 {
+			diff *= -1
+		}
+		if diff < 10*time.Millisecond {
+			return pq[i].size > pq[j].size
+		}
 		return pq[i].timestamp.After(pq[j].timestamp)
 	}
 
@@ -272,12 +280,10 @@ func (s *pqScheduler) process() {
 }
 
 func (s *pqScheduler) push(pqEnv *pqEnvelope) {
-	chIDStr := strconv.Itoa(int(pqEnv.envelope.channelID))
-
 	// enqueue the incoming Envelope
 	heap.Push(s.pq, pqEnv)
 	s.size += pqEnv.size
-	s.metrics.PeerQueueMsgSize.With("ch_id", chIDStr).Add(float64(pqEnv.size))
+	s.metrics.PeerQueueMsgSize.With("ch_id", strconv.Itoa(int(pqEnv.envelope.channelID))).Add(float64(pqEnv.size))
 
 	// Update the cumulative sizes by adding the Envelope's size to every
 	// priority less than or equal to it.

internal/p2p/router.go

@@ -5,7 +5,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"math/rand"
 	"net"
 	"runtime"
 	"sync"
@@ -41,6 +40,10 @@ type Envelope struct {
 	channelID ChannelID
 }
 
+func (e Envelope) IsZero() bool {
+	return e.From == "" && e.To == "" && e.Message == nil
+}
+
 // PeerError is a peer error reported via Channel.Error.
 //
 // FIXME: This currently just disconnects the peer, which is too simplistic.
@@ -54,6 +57,7 @@ type Envelope struct {
 type PeerError struct {
 	NodeID types.NodeID
 	Err    error
+	Fatal  bool
 }
 
 // Channel is a bidirectional channel to exchange Protobuf messages with peers,
@@ -159,12 +163,6 @@ type RouterOptions struct {
 	// return an error to reject the peer.
 	FilterPeerByID func(context.Context, types.NodeID) error
 
-	// DialSleep controls the amount of time that the router
-	// sleeps between dialing peers. If not set, a default value
-	// is used that sleeps for a (random) amount of time up to 3
-	// seconds between submitting each peer to be dialed.
-	DialSleep func(context.Context)
-
 	// NumConcrruentDials controls how many parallel go routines
 	// are used to dial peers. This defaults to the value of
 	// runtime.NumCPU.
@@ -172,9 +170,10 @@ type RouterOptions struct {
 }
 
 const (
-	queueTypeFifo     = "fifo"
-	queueTypePriority = "priority"
-	queueTypeWDRR     = "wdrr"
+	queueTypeFifo           = "fifo"
+	queueTypePriority       = "priority"
+	queueTypeWDRR           = "wdrr"
+	queueTypeSimplePriority = "simple-priority"
 )
 
 // Validate validates router options.
@@ -182,8 +181,8 @@ func (o *RouterOptions) Validate() error {
 	switch o.QueueType {
 	case "":
 		o.QueueType = queueTypeFifo
-	case queueTypeFifo, queueTypeWDRR, queueTypePriority:
-		// passI me
+	case queueTypeFifo, queueTypeWDRR, queueTypePriority, queueTypeSimplePriority:
+		// pass
 	default:
 		return fmt.Errorf("queue type %q is not supported", o.QueueType)
 	}
@@ -290,7 +289,7 @@ func NewRouter(
 
 	router := &Router{
 		logger:   logger,
-		metrics:  metrics,
+		metrics:  NopMetrics(),
 		nodeInfo: nodeInfo,
 		privKey:  privKey,
 		connTracker: newConnTracker(
@@ -311,6 +310,10 @@ func NewRouter(
 
 	router.BaseService = service.NewBaseService(logger, "router", router)
 
+	if metrics != nil {
+		router.metrics = metrics
+	}
+
 	qf, err := router.createQueueFactory()
 	if err != nil {
 		return nil, err
@@ -356,6 +359,9 @@ func (r *Router) createQueueFactory() (func(int) queue, error) {
 			return q
 		}, nil
 
+	case queueTypeSimplePriority:
+		return func(size int) queue { return newSimplePriorityQueue(r.stopCtx(), size, r.chDescs) }, nil
+
 	default:
 		return nil, fmt.Errorf("cannot construct queue of type %q", r.options.QueueType)
 	}
@@ -424,8 +430,9 @@ func (r *Router) routeChannel(
 		case envelope, ok := <-outCh:
 			if !ok {
 				return
+			} else if envelope.IsZero() {
+				continue
 			}
-
 			// Mark the envelope with the channel ID to allow sendPeer() to pass
 			// it on to Transport.SendMessage().
 			envelope.channelID = chID
@@ -506,20 +513,35 @@ func (r *Router) routeChannel(
 			if !ok {
 				return
 			}
+			maxPeerCapacity := r.peerManager.HasMaxPeerCapacity()
+			r.logger.Error("peer error",
+				"peer", peerError.NodeID,
+				"err", peerError.Err,
+				"disconnecting", peerError.Fatal || maxPeerCapacity,
+			)
 
-			r.logger.Error("peer error, evicting", "peer", peerError.NodeID, "err", peerError.Err)
-
-			r.peerManager.Errored(peerError.NodeID, peerError.Err)
-
+			if peerError.Fatal || maxPeerCapacity {
+				// if the error is fatal or all peer
+				// slots are in use, we can error
+				// (disconnect) from the peer.
+				r.peerManager.Errored(peerError.NodeID, peerError.Err)
+			} else {
+				// this just decrements the peer
+				// score.
+				r.peerManager.processPeerEvent(PeerUpdate{
+					NodeID: peerError.NodeID,
+					Status: PeerStatusBad,
+				})
+			}
 		case <-r.stopCh:
 			return
 		}
 	}
 }
 
-func (r *Router) numConccurentDials() int {
+func (r *Router) numConcurrentDials() int {
 	if r.options.NumConcurrentDials == nil {
-		return runtime.NumCPU()
+		return runtime.NumCPU() * 32
 	}
 
 	return r.options.NumConcurrentDials()
@@ -541,23 +563,6 @@ func (r *Router) filterPeersID(ctx context.Context, id types.NodeID) error {
 	return r.options.FilterPeerByID(ctx, id)
 }
 
-func (r *Router) dialSleep(ctx context.Context) {
-	if r.options.DialSleep == nil {
-		// nolint:gosec // G404: Use of weak random number generator
-		timer := time.NewTimer(time.Duration(rand.Int63n(dialRandomizerIntervalMilliseconds)) * time.Millisecond)
-		defer timer.Stop()
-
-		select {
-		case <-ctx.Done():
-		case <-timer.C:
-		}
-
-		return
-	}
-
-	r.options.DialSleep(ctx)
-}
-
 // acceptPeers accepts inbound connections from peers on the given transport,
 // and spawns goroutines that route messages to/from them.
 func (r *Router) acceptPeers(transport Transport) {
@@ -565,14 +570,14 @@ func (r *Router) acceptPeers(transport Transport) {
 	ctx := r.stopCtx()
 	for {
 		conn, err := transport.Accept()
-		switch err {
-		case nil:
-		case io.EOF:
-			r.logger.Debug("stopping accept routine", "transport", transport)
+		switch {
+		case errors.Is(err, io.EOF):
+			r.logger.Debug("stopping accept routine", "transport", transport, "err", "EOF")
 			return
-		default:
+		case err != nil:
+			// in this case we got an error from the net.Listener.
 			r.logger.Error("failed to accept connection", "transport", transport, "err", err)
-			return
+			continue
 		}
 
 		incomingIP := conn.RemoteEndpoint().IP
@@ -584,7 +589,7 @@ func (r *Router) acceptPeers(transport Transport) {
 				"close_err", closeErr,
 			)
 
-			return
+			continue
 		}
 
 		// Spawn a goroutine for the handshake, to avoid head-of-line blocking.
@@ -656,7 +661,7 @@ func (r *Router) dialPeers() {
 	// able to add peers at a reasonable pace, though the number
 	// is somewhat arbitrary. The action is further throttled by a
 	// sleep after sending to the addresses channel.
-	for i := 0; i < r.numConccurentDials(); i++ {
+	for i := 0; i < r.numConcurrentDials(); i++ {
 		wg.Add(1)
 		go func() {
 			defer wg.Done()
@@ -679,19 +684,13 @@ LOOP:
 		case errors.Is(err, context.Canceled):
 			r.logger.Debug("stopping dial routine")
 			break LOOP
-		case err != nil:
-			r.logger.Error("failed to find next peer to dial", "err", err)
-			break LOOP
+		case address == NodeAddress{}:
+			continue LOOP
 		}
 
 		select {
 		case addresses <- address:
-			// this jitters the frequency that we call
-			// DialNext and prevents us from attempting to
-			// create connections too quickly.
-
-			r.dialSleep(ctx)
-			continue
+			continue LOOP
 		case <-ctx.Done():
 			close(addresses)
 			break LOOP
@@ -707,7 +706,7 @@ func (r *Router) connectPeer(ctx context.Context, address NodeAddress) {
 	case errors.Is(err, context.Canceled):
 		return
 	case err != nil:
-		r.logger.Error("failed to dial peer", "peer", address, "err", err)
+		r.logger.Debug("failed to dial peer", "peer", address, "err", err)
 		if err = r.peerManager.DialFailed(address); err != nil {
 			r.logger.Error("failed to report dial failure", "peer", address, "err", err)
 		}
@@ -729,8 +728,8 @@ func (r *Router) connectPeer(ctx context.Context, address NodeAddress) {
 	}
 
 	if err := r.runWithPeerMutex(func() error { return r.peerManager.Dialed(address) }); err != nil {
-		r.logger.Error("failed to dial peer",
-			"op", "outgoing/dialing", "peer", address.NodeID, "err", err)
+		r.logger.Error("failed to dial peer", "op", "outgoing/dialing", "peer", address.NodeID, "err", err)
+		r.peerManager.dialWaker.Wake()
 		conn.Close()
 		return
 	}
@@ -794,12 +793,13 @@ func (r *Router) dialPeer(ctx context.Context, address NodeAddress) (Connection,
 		// Internet can't and needs a different public address.
 		conn, err := transport.Dial(dialCtx, endpoint)
 		if err != nil {
-			r.logger.Error("failed to dial endpoint", "peer", address.NodeID, "endpoint", endpoint, "err", err)
+			r.logger.Debug("failed to dial endpoint", "peer", address.NodeID, "endpoint", endpoint, "err", err)
 		} else {
 			r.logger.Debug("dialed peer", "peer", address.NodeID, "endpoint", endpoint)
 			return conn, nil
 		}
 	}
+
 	return nil, errors.New("all endpoints failed")
 }
 
@@ -811,19 +811,14 @@ func (r *Router) handshakePeer(
 	expectID types.NodeID,
 ) (types.NodeInfo, crypto.PubKey, error) {
 
-	if r.options.HandshakeTimeout > 0 {
-		var cancel context.CancelFunc
-		ctx, cancel = context.WithTimeout(ctx, r.options.HandshakeTimeout)
-		defer cancel()
-	}
-
-	peerInfo, peerKey, err := conn.Handshake(ctx, r.nodeInfo, r.privKey)
+	peerInfo, peerKey, err := conn.Handshake(ctx, r.options.HandshakeTimeout, r.nodeInfo, r.privKey)
 	if err != nil {
 		return peerInfo, peerKey, err
 	}
 	if err = peerInfo.Validate(); err != nil {
 		return peerInfo, peerKey, fmt.Errorf("invalid handshake NodeInfo: %w", err)
 	}
+
 	if types.NodeIDFromPubKey(peerKey) != peerInfo.NodeID {
 		return peerInfo, peerKey, fmt.Errorf("peer's public key did not match its node ID %q (expected %q)",
 			peerInfo.NodeID, types.NodeIDFromPubKey(peerKey))
@@ -832,7 +827,12 @@ func (r *Router) handshakePeer(
 		return peerInfo, peerKey, fmt.Errorf("expected to connect with peer %q, got %q",
 			expectID, peerInfo.NodeID)
 	}
+
 	if err := r.nodeInfo.CompatibleWith(peerInfo); err != nil {
+		if err := r.peerManager.Inactivate(peerInfo.NodeID); err != nil {
+			return peerInfo, peerKey, fmt.Errorf("problem inactivating peer %q: %w", peerInfo.ID(), err)
+		}
+
 		return peerInfo, peerKey, ErrRejected{
 			err:            err,
 			id:             peerInfo.ID(),
@@ -1011,6 +1011,8 @@ func (r *Router) evictPeers() {
 		queue, ok := r.peerQueues[peerID]
 		r.peerMtx.RUnlock()
 
+		r.metrics.PeersEvicted.Add(1)
+
 		if ok {
 			queue.close()
 		}

internal/p2p/router_test.go

@@ -1,7 +1,6 @@
 package p2p_test
 
 import (
-	"context"
 	"errors"
 	"fmt"
 	"io"
@@ -133,13 +132,6 @@ func TestRouter_Channel_Basic(t *testing.T) {
 	require.NoError(t, err)
 	require.Contains(t, router.NodeInfo().Channels, chDesc2.ID)
 
-	// Closing the channel, then opening it again should be fine.
-	channel.Close()
-	time.Sleep(100 * time.Millisecond) // yes yes, but Close() is async...
-
-	channel, err = router.OpenChannel(chDesc, &p2ptest.Message{}, 0)
-	require.NoError(t, err)
-
 	// We should be able to send on the channel, even though there are no peers.
 	p2ptest.RequireSend(t, channel, p2p.Envelope{
 		To:      types.NodeID(strings.Repeat("a", 40)),
@@ -352,7 +344,7 @@ func TestRouter_AcceptPeers(t *testing.T) {
 			closer := tmsync.NewCloser()
 			mockConnection := &mocks.Connection{}
 			mockConnection.On("String").Maybe().Return("mock")
-			mockConnection.On("Handshake", mock.Anything, selfInfo, selfKey).
+			mockConnection.On("Handshake", mock.Anything, mock.Anything, selfInfo, selfKey).
 				Return(tc.peerInfo, tc.peerKey, nil)
 			mockConnection.On("Close").Run(func(_ mock.Arguments) { closer.Close() }).Return(nil)
 			mockConnection.On("RemoteEndpoint").Return(p2p.Endpoint{})
@@ -413,72 +405,42 @@ func TestRouter_AcceptPeers(t *testing.T) {
 	}
 }
 
-func TestRouter_AcceptPeers_Error(t *testing.T) {
-	t.Cleanup(leaktest.Check(t))
+func TestRouter_AcceptPeers_Errors(t *testing.T) {
+	for _, err := range []error{io.EOF} {
+		t.Run(err.Error(), func(t *testing.T) {
+			t.Cleanup(leaktest.Check(t))
 
-	// Set up a mock transport that returns an error, which should prevent
-	// the router from calling Accept again.
-	mockTransport := &mocks.Transport{}
-	mockTransport.On("String").Maybe().Return("mock")
-	mockTransport.On("Protocols").Return([]p2p.Protocol{"mock"})
-	mockTransport.On("Accept").Once().Return(nil, errors.New("boom"))
-	mockTransport.On("Close").Return(nil)
+			// Set up a mock transport that returns io.EOF once, which should prevent
+			// the router from calling Accept again.
+			mockTransport := &mocks.Transport{}
+			mockTransport.On("String").Maybe().Return("mock")
+			mockTransport.On("Accept", mock.Anything).Once().Return(nil, err)
+			mockTransport.On("Listen", mock.Anything).Return(nil).Maybe()
+			mockTransport.On("Close").Return(nil)
+			mockTransport.On("Protocols").Return([]p2p.Protocol{"mock"})
+			// Set up and start the router.
+			peerManager, err := p2p.NewPeerManager(selfID, dbm.NewMemDB(), p2p.PeerManagerOptions{})
+			require.NoError(t, err)
 
-	// Set up and start the router.
-	peerManager, err := p2p.NewPeerManager(selfID, dbm.NewMemDB(), p2p.PeerManagerOptions{})
-	require.NoError(t, err)
-	defer peerManager.Close()
+			router, err := p2p.NewRouter(
+				log.TestingLogger(),
+				p2p.NopMetrics(),
+				selfInfo,
+				selfKey,
+				peerManager,
+				[]p2p.Transport{mockTransport},
+				p2p.RouterOptions{},
+			)
+			require.NoError(t, err)
 
-	router, err := p2p.NewRouter(
-		log.TestingLogger(),
-		p2p.NopMetrics(),
-		selfInfo,
-		selfKey,
-		peerManager,
-		[]p2p.Transport{mockTransport},
-		p2p.RouterOptions{},
-	)
-	require.NoError(t, err)
+			require.NoError(t, router.Start())
+			time.Sleep(time.Second)
+			require.NoError(t, router.Stop())
 
-	require.NoError(t, router.Start())
-	time.Sleep(time.Second)
-	require.NoError(t, router.Stop())
+			mockTransport.AssertExpectations(t)
 
-	mockTransport.AssertExpectations(t)
-}
-
-func TestRouter_AcceptPeers_ErrorEOF(t *testing.T) {
-	t.Cleanup(leaktest.Check(t))
-
-	// Set up a mock transport that returns io.EOF once, which should prevent
-	// the router from calling Accept again.
-	mockTransport := &mocks.Transport{}
-	mockTransport.On("String").Maybe().Return("mock")
-	mockTransport.On("Protocols").Return([]p2p.Protocol{"mock"})
-	mockTransport.On("Accept").Once().Return(nil, io.EOF)
-	mockTransport.On("Close").Return(nil)
-
-	// Set up and start the router.
-	peerManager, err := p2p.NewPeerManager(selfID, dbm.NewMemDB(), p2p.PeerManagerOptions{})
-	require.NoError(t, err)
-	defer peerManager.Close()
-
-	router, err := p2p.NewRouter(
-		log.TestingLogger(),
-		p2p.NopMetrics(),
-		selfInfo,
-		selfKey,
-		peerManager,
-		[]p2p.Transport{mockTransport},
-		p2p.RouterOptions{},
-	)
-	require.NoError(t, err)
-
-	require.NoError(t, router.Start())
-	time.Sleep(time.Second)
-	require.NoError(t, router.Stop())
-
-	mockTransport.AssertExpectations(t)
+		})
+	}
 }
 
 func TestRouter_AcceptPeers_HeadOfLineBlocking(t *testing.T) {
@@ -492,7 +454,7 @@ func TestRouter_AcceptPeers_HeadOfLineBlocking(t *testing.T) {
 
 	mockConnection := &mocks.Connection{}
 	mockConnection.On("String").Maybe().Return("mock")
-	mockConnection.On("Handshake", mock.Anything, selfInfo, selfKey).
+	mockConnection.On("Handshake", mock.Anything, mock.Anything, selfInfo, selfKey).
 		WaitUntil(closeCh).Return(types.NodeInfo{}, nil, io.EOF)
 	mockConnection.On("Close").Return(nil)
 	mockConnection.On("RemoteEndpoint").Return(p2p.Endpoint{})
@@ -573,7 +535,7 @@ func TestRouter_DialPeers(t *testing.T) {
 			mockConnection := &mocks.Connection{}
 			mockConnection.On("String").Maybe().Return("mock")
 			if tc.dialErr == nil {
-				mockConnection.On("Handshake", mock.Anything, selfInfo, selfKey).
+				mockConnection.On("Handshake", mock.Anything, mock.Anything, selfInfo, selfKey).
 					Return(tc.peerInfo, tc.peerKey, nil)
 				mockConnection.On("Close").Run(func(_ mock.Arguments) { closer.Close() }).Return(nil)
 			}
@@ -660,7 +622,7 @@ func TestRouter_DialPeers_Parallel(t *testing.T) {
 
 	mockConnection := &mocks.Connection{}
 	mockConnection.On("String").Maybe().Return("mock")
-	mockConnection.On("Handshake", mock.Anything, selfInfo, selfKey).
+	mockConnection.On("Handshake", mock.Anything, mock.Anything, selfInfo, selfKey).
 		WaitUntil(closeCh).Return(types.NodeInfo{}, nil, io.EOF)
 	mockConnection.On("Close").Return(nil)
 
@@ -701,7 +663,6 @@ func TestRouter_DialPeers_Parallel(t *testing.T) {
 		peerManager,
 		[]p2p.Transport{mockTransport},
 		p2p.RouterOptions{
-			DialSleep: func(_ context.Context) {},
 			NumConcurrentDials: func() int {
 				ncpu := runtime.NumCPU()
 				if ncpu <= 3 {
@@ -740,7 +701,7 @@ func TestRouter_EvictPeers(t *testing.T) {
 
 	mockConnection := &mocks.Connection{}
 	mockConnection.On("String").Maybe().Return("mock")
-	mockConnection.On("Handshake", mock.Anything, selfInfo, selfKey).
+	mockConnection.On("Handshake", mock.Anything, mock.Anything, selfInfo, selfKey).
 		Return(peerInfo, peerKey.PubKey(), nil)
 	mockConnection.On("ReceiveMessage").WaitUntil(closeCh).Return(chID, nil, io.EOF)
 	mockConnection.On("RemoteEndpoint").Return(p2p.Endpoint{})
@@ -809,7 +770,7 @@ func TestRouter_ChannelCompatability(t *testing.T) {
 
 	mockConnection := &mocks.Connection{}
 	mockConnection.On("String").Maybe().Return("mock")
-	mockConnection.On("Handshake", mock.Anything, selfInfo, selfKey).
+	mockConnection.On("Handshake", mock.Anything, mock.Anything, selfInfo, selfKey).
 		Return(incompatiblePeer, peerKey.PubKey(), nil)
 	mockConnection.On("RemoteEndpoint").Return(p2p.Endpoint{})
 	mockConnection.On("Close").Return(nil)
@@ -858,7 +819,7 @@ func TestRouter_DontSendOnInvalidChannel(t *testing.T) {
 
 	mockConnection := &mocks.Connection{}
 	mockConnection.On("String").Maybe().Return("mock")
-	mockConnection.On("Handshake", mock.Anything, selfInfo, selfKey).
+	mockConnection.On("Handshake", mock.Anything, mock.Anything, selfInfo, selfKey).
 		Return(peer, peerKey.PubKey(), nil)
 	mockConnection.On("RemoteEndpoint").Return(p2p.Endpoint{})
 	mockConnection.On("Close").Return(nil)

internal/p2p/rqueue.go

@@ -0,0 +1,112 @@
+package p2p
+
+import (
+	"container/heap"
+	"context"
+	"sort"
+	"time"
+
+	"github.com/gogo/protobuf/proto"
+)
+
+type simpleQueue struct {
+	input   chan Envelope
+	output  chan Envelope
+	closeFn func()
+	closeCh <-chan struct{}
+
+	maxSize int
+	chDescs []ChannelDescriptor
+}
+
+func newSimplePriorityQueue(ctx context.Context, size int, chDescs []ChannelDescriptor) *simpleQueue {
+	if size%2 != 0 {
+		size++
+	}
+
+	ctx, cancel := context.WithCancel(ctx)
+	q := &simpleQueue{
+		input:   make(chan Envelope, size*2),
+		output:  make(chan Envelope, size/2),
+		maxSize: size * size,
+		closeCh: ctx.Done(),
+		closeFn: cancel,
+	}
+
+	go q.run(ctx)
+	return q
+}
+
+func (q *simpleQueue) enqueue() chan<- Envelope { return q.input }
+func (q *simpleQueue) dequeue() <-chan Envelope { return q.output }
+func (q *simpleQueue) close()                   { q.closeFn() }
+func (q *simpleQueue) closed() <-chan struct{}  { return q.closeCh }
+
+func (q *simpleQueue) run(ctx context.Context) {
+	defer q.closeFn()
+
+	var chPriorities = make(map[ChannelID]uint, len(q.chDescs))
+	for _, chDesc := range q.chDescs {
+		chID := ChannelID(chDesc.ID)
+		chPriorities[chID] = uint(chDesc.Priority)
+	}
+
+	pq := make(priorityQueue, 0, q.maxSize)
+	heap.Init(&pq)
+	ticker := time.NewTicker(10 * time.Millisecond)
+	// must have a buffer of exactly one because both sides of
+	// this channel are used in this loop, and simply signals adds
+	// to the heap
+	signal := make(chan struct{}, 1)
+	for {
+		select {
+		case <-ctx.Done():
+			return
+		case <-q.closeCh:
+			return
+		case e := <-q.input:
+			// enqueue the incoming Envelope
+			heap.Push(&pq, &pqEnvelope{
+				envelope:  e,
+				size:      uint(proto.Size(e.Message)),
+				priority:  chPriorities[e.channelID],
+				timestamp: time.Now().UTC(),
+			})
+
+			select {
+			case signal <- struct{}{}:
+			default:
+				if len(pq) > q.maxSize {
+					sort.Sort(pq)
+					pq = pq[:q.maxSize]
+				}
+			}
+
+		case <-ticker.C:
+			if len(pq) > q.maxSize {
+				sort.Sort(pq)
+				pq = pq[:q.maxSize]
+			}
+			if len(pq) > 0 {
+				select {
+				case signal <- struct{}{}:
+				default:
+				}
+			}
+		case <-signal:
+		SEND:
+			for len(pq) > 0 {
+				select {
+				case <-ctx.Done():
+					return
+				case <-q.closeCh:
+					return
+				case q.output <- heap.Pop(&pq).(*pqEnvelope).envelope:
+					continue SEND
+				default:
+					break SEND
+				}
+			}
+		}
+	}
+}

internal/p2p/rqueue_test.go

@@ -0,0 +1,47 @@
+package p2p
+
+import (
+	"context"
+	"testing"
+	"time"
+)
+
+func TestSimpleQueue(t *testing.T) {
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	// set up a small queue with very small buffers so we can
+	// watch it shed load, then send a bunch of messages to the
+	// queue, most of which we'll watch it drop.
+	sq := newSimplePriorityQueue(ctx, 1, nil)
+	for i := 0; i < 100; i++ {
+		sq.enqueue() <- Envelope{From: "merlin"}
+	}
+
+	seen := 0
+
+RETRY:
+	for seen <= 2 {
+		select {
+		case e := <-sq.dequeue():
+			if e.From != "merlin" {
+				continue
+			}
+			seen++
+		case <-time.After(10 * time.Millisecond):
+			break RETRY
+		}
+	}
+	// if we don't see any messages, then it's just broken.
+	if seen == 0 {
+		t.Errorf("seen %d messages, should have seen more than one", seen)
+	}
+	// ensure that load shedding happens: there can be at most 3
+	// messages that we get out of this, one that was buffered
+	// plus 2 that were under the cap, everything else gets
+	// dropped.
+	if seen > 3 {
+		t.Errorf("saw %d messages, should have seen 5 or fewer", seen)
+	}
+
+}

internal/p2p/switch.go

@@ -417,7 +417,7 @@ func (sw *Switch) stopAndRemovePeer(peer Peer, reason interface{}) {
 	// RemovePeer is finished.
 	// https://github.com/tendermint/tendermint/issues/3338
 	if sw.peers.Remove(peer) {
-		sw.metrics.Peers.Add(float64(-1))
+		sw.metrics.Peers.Add(-1)
 	}
 
 	sw.conns.RemoveAddr(peer.RemoteAddr())
@@ -865,11 +865,11 @@ func (sw *Switch) handshakePeer(
 	c Connection,
 	expectPeerID types.NodeID,
 ) (types.NodeInfo, crypto.PubKey, error) {
-	// Moved from transport and hardcoded until legacy P2P stack removal.
-	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
 
-	peerInfo, peerKey, err := c.Handshake(ctx, sw.nodeInfo, sw.nodeKey.PrivKey)
+	// Moved timeout from transport and hardcoded until legacy P2P stack removal.
+	peerInfo, peerKey, err := c.Handshake(ctx, 5*time.Second, sw.nodeInfo, sw.nodeKey.PrivKey)
 	if err != nil {
 		return peerInfo, peerKey, ErrRejected{
 			conn:          c.(*mConnConnection).conn,
@@ -1035,7 +1035,7 @@ func (sw *Switch) addPeer(p Peer) error {
 	if err := sw.peers.Add(p); err != nil {
 		return err
 	}
-	sw.metrics.Peers.Add(float64(1))
+	sw.metrics.Peers.Add(1)
 
 	// Start all the reactor protocols on the peer.
 	for _, reactor := range sw.reactors {

internal/p2p/switch_test.go

@@ -267,7 +267,7 @@ func TestSwitchPeerFilter(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	peerInfo, _, err := c.Handshake(ctx, sw.nodeInfo, sw.nodeKey.PrivKey)
+	peerInfo, _, err := c.Handshake(ctx, 0, sw.nodeInfo, sw.nodeKey.PrivKey)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -324,7 +324,7 @@ func TestSwitchPeerFilterTimeout(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	peerInfo, _, err := c.Handshake(ctx, sw.nodeInfo, sw.nodeKey.PrivKey)
+	peerInfo, _, err := c.Handshake(ctx, 0, sw.nodeInfo, sw.nodeKey.PrivKey)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -360,7 +360,7 @@ func TestSwitchPeerFilterDuplicate(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	peerInfo, _, err := c.Handshake(ctx, sw.nodeInfo, sw.nodeKey.PrivKey)
+	peerInfo, _, err := c.Handshake(ctx, 0, sw.nodeInfo, sw.nodeKey.PrivKey)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -415,7 +415,7 @@ func TestSwitchStopsNonPersistentPeerOnError(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	peerInfo, _, err := c.Handshake(ctx, sw.nodeInfo, sw.nodeKey.PrivKey)
+	peerInfo, _, err := c.Handshake(ctx, 0, sw.nodeInfo, sw.nodeKey.PrivKey)
 	if err != nil {
 		t.Fatal(err)
 	}

internal/p2p/test_util.go

@@ -126,7 +126,7 @@ func (sw *Switch) addPeerWithConnection(conn net.Conn) error {
 		}
 		return err
 	}
-	peerNodeInfo, _, err := pc.conn.Handshake(context.Background(), sw.nodeInfo, sw.nodeKey.PrivKey)
+	peerNodeInfo, _, err := pc.conn.Handshake(context.Background(), 0, sw.nodeInfo, sw.nodeKey.PrivKey)
 	if err != nil {
 		if err := conn.Close(); err != nil {
 			sw.Logger.Error("Error closing connection", "err", err)

internal/p2p/transport.go

@@ -5,6 +5,7 @@ import (
 	"errors"
 	"fmt"
 	"net"
+	"time"
 
 	"github.com/tendermint/tendermint/crypto"
 	"github.com/tendermint/tendermint/internal/p2p/conn"
@@ -84,7 +85,7 @@ type Connection interface {
 	// FIXME: The handshake should really be the Router's responsibility, but
 	// that requires the connection interface to be byte-oriented rather than
 	// message-oriented (see comment above).
-	Handshake(context.Context, types.NodeInfo, crypto.PrivKey) (types.NodeInfo, crypto.PubKey, error)
+	Handshake(context.Context, time.Duration, types.NodeInfo, crypto.PrivKey) (types.NodeInfo, crypto.PubKey, error)
 
 	// ReceiveMessage returns the next message received on the connection,
 	// blocking until one is available. Returns io.EOF if closed.

internal/p2p/transport_mconn.go

@@ -9,6 +9,7 @@ import (
 	"net"
 	"strconv"
 	"sync"
+	"time"
 
 	"golang.org/x/net/netutil"
 
@@ -255,6 +256,7 @@ func newMConnConnection(
 // Handshake implements Connection.
 func (c *mConnConnection) Handshake(
 	ctx context.Context,
+	timeout time.Duration,
 	nodeInfo types.NodeInfo,
 	privKey crypto.PrivKey,
 ) (types.NodeInfo, crypto.PubKey, error) {
@@ -264,6 +266,12 @@ func (c *mConnConnection) Handshake(
 		peerKey  crypto.PubKey
 		errCh    = make(chan error, 1)
 	)
+	handshakeCtx := ctx
+	if timeout > 0 {
+		var cancel context.CancelFunc
+		handshakeCtx, cancel = context.WithTimeout(ctx, timeout)
+		defer cancel()
+	}
 	// To handle context cancellation, we need to do the handshake in a
 	// goroutine and abort the blocking network calls by closing the connection
 	// when the context is canceled.
@@ -276,14 +284,19 @@ func (c *mConnConnection) Handshake(
 			}
 		}()
 		var err error
-		mconn, peerInfo, peerKey, err = c.handshake(ctx, nodeInfo, privKey)
-		errCh <- err
+		mconn, peerInfo, peerKey, err = c.handshake(handshakeCtx, nodeInfo, privKey)
+
+		select {
+		case errCh <- err:
+		case <-handshakeCtx.Done():
+		}
+
 	}()
 
 	select {
-	case <-ctx.Done():
+	case <-handshakeCtx.Done():
 		_ = c.Close()
-		return types.NodeInfo{}, nil, ctx.Err()
+		return types.NodeInfo{}, nil, handshakeCtx.Err()
 
 	case err := <-errCh:
 		if err != nil {

internal/p2p/transport_memory.go

@@ -7,6 +7,7 @@ import (
 	"io"
 	"net"
 	"sync"
+	"time"
 
 	"github.com/tendermint/tendermint/crypto"
 	tmsync "github.com/tendermint/tendermint/internal/libs/sync"
@@ -270,9 +271,16 @@ func (c *MemoryConnection) Status() conn.ConnectionStatus {
 // Handshake implements Connection.
 func (c *MemoryConnection) Handshake(
 	ctx context.Context,
+	timeout time.Duration,
 	nodeInfo types.NodeInfo,
 	privKey crypto.PrivKey,
 ) (types.NodeInfo, crypto.PubKey, error) {
+	if timeout > 0 {
+		var cancel context.CancelFunc
+		ctx, cancel = context.WithTimeout(ctx, timeout)
+		defer cancel()
+	}
+
 	select {
 	case c.sendCh <- memoryMessage{nodeInfo: &nodeInfo, pubKey: privKey.PubKey()}:
 		c.logger.Debug("sent handshake", "nodeInfo", nodeInfo)

internal/p2p/transport_test.go

@@ -265,7 +265,7 @@ func TestConnection_Handshake(t *testing.T) {
 		errCh := make(chan error, 1)
 		go func() {
 			// Must use assert due to goroutine.
-			peerInfo, peerKey, err := ba.Handshake(ctx, bInfo, bKey)
+			peerInfo, peerKey, err := ba.Handshake(ctx, 0, bInfo, bKey)
 			if err == nil {
 				assert.Equal(t, aInfo, peerInfo)
 				assert.Equal(t, aKey.PubKey(), peerKey)
@@ -273,7 +273,7 @@ func TestConnection_Handshake(t *testing.T) {
 			errCh <- err
 		}()
 
-		peerInfo, peerKey, err := ab.Handshake(ctx, aInfo, aKey)
+		peerInfo, peerKey, err := ab.Handshake(ctx, 0, aInfo, aKey)
 		require.NoError(t, err)
 		require.Equal(t, bInfo, peerInfo)
 		require.Equal(t, bKey.PubKey(), peerKey)
@@ -291,7 +291,7 @@ func TestConnection_HandshakeCancel(t *testing.T) {
 		ab, ba := dialAccept(t, a, b)
 		timeoutCtx, cancel := context.WithTimeout(ctx, 1*time.Minute)
 		cancel()
-		_, _, err := ab.Handshake(timeoutCtx, types.NodeInfo{}, ed25519.GenPrivKey())
+		_, _, err := ab.Handshake(timeoutCtx, 0, types.NodeInfo{}, ed25519.GenPrivKey())
 		require.Error(t, err)
 		require.Equal(t, context.Canceled, err)
 		_ = ab.Close()
@@ -301,7 +301,7 @@ func TestConnection_HandshakeCancel(t *testing.T) {
 		ab, ba = dialAccept(t, a, b)
 		timeoutCtx, cancel = context.WithTimeout(ctx, 200*time.Millisecond)
 		defer cancel()
-		_, _, err = ab.Handshake(timeoutCtx, types.NodeInfo{}, ed25519.GenPrivKey())
+		_, _, err = ab.Handshake(timeoutCtx, 0, types.NodeInfo{}, ed25519.GenPrivKey())
 		require.Error(t, err)
 		require.Equal(t, context.DeadlineExceeded, err)
 		_ = ab.Close()
@@ -630,13 +630,13 @@ func dialAcceptHandshake(t *testing.T, a, b p2p.Transport) (p2p.Connection, p2p.
 	go func() {
 		privKey := ed25519.GenPrivKey()
 		nodeInfo := types.NodeInfo{NodeID: types.NodeIDFromPubKey(privKey.PubKey())}
-		_, _, err := ba.Handshake(ctx, nodeInfo, privKey)
+		_, _, err := ba.Handshake(ctx, 0, nodeInfo, privKey)
 		errCh <- err
 	}()
 
 	privKey := ed25519.GenPrivKey()
 	nodeInfo := types.NodeInfo{NodeID: types.NodeIDFromPubKey(privKey.PubKey())}
-	_, _, err := ab.Handshake(ctx, nodeInfo, privKey)
+	_, _, err := ab.Handshake(ctx, 0, nodeInfo, privKey)
 	require.NoError(t, err)
 
 	timer := time.NewTimer(2 * time.Second)

internal/proxy/mocks/app_conn_consensus.go

@@ -150,3 +150,18 @@ func (_m *AppConnConsensus) InitChainSync(_a0 context.Context, _a1 types.Request
 func (_m *AppConnConsensus) SetResponseCallback(_a0 abciclient.Callback) {
 	_m.Called(_a0)
 }
+
+type mockConstructorTestingTNewAppConnConsensus interface {
+	mock.TestingT
+	Cleanup(func())
+}
+
+// NewAppConnConsensus creates a new instance of AppConnConsensus. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
+func NewAppConnConsensus(t mockConstructorTestingTNewAppConnConsensus) *AppConnConsensus {
+	mock := &AppConnConsensus{}
+	mock.Mock.Test(t)
+
+	t.Cleanup(func() { mock.AssertExpectations(t) })
+
+	return mock
+}

internal/proxy/mocks/app_conn_mempool.go

@@ -118,3 +118,18 @@ func (_m *AppConnMempool) FlushSync(_a0 context.Context) error {
 func (_m *AppConnMempool) SetResponseCallback(_a0 abciclient.Callback) {
 	_m.Called(_a0)
 }
+
+type mockConstructorTestingTNewAppConnMempool interface {
+	mock.TestingT
+	Cleanup(func())
+}
+
+// NewAppConnMempool creates a new instance of AppConnMempool. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
+func NewAppConnMempool(t mockConstructorTestingTNewAppConnMempool) *AppConnMempool {
+	mock := &AppConnMempool{}
+	mock.Mock.Test(t)
+
+	t.Cleanup(func() { mock.AssertExpectations(t) })
+
+	return mock
+}

internal/proxy/mocks/app_conn_query.go

@@ -97,3 +97,18 @@ func (_m *AppConnQuery) QuerySync(_a0 context.Context, _a1 types.RequestQuery) (
 
 	return r0, r1
 }
+
+type mockConstructorTestingTNewAppConnQuery interface {
+	mock.TestingT
+	Cleanup(func())
+}
+
+// NewAppConnQuery creates a new instance of AppConnQuery. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
+func NewAppConnQuery(t mockConstructorTestingTNewAppConnQuery) *AppConnQuery {
+	mock := &AppConnQuery{}
+	mock.Mock.Test(t)
+
+	t.Cleanup(func() { mock.AssertExpectations(t) })
+
+	return mock
+}

internal/proxy/mocks/app_conn_snapshot.go

@@ -120,3 +120,18 @@ func (_m *AppConnSnapshot) OfferSnapshotSync(_a0 context.Context, _a1 types.Requ
 
 	return r0, r1
 }
+
+type mockConstructorTestingTNewAppConnSnapshot interface {
+	mock.TestingT
+	Cleanup(func())
+}
+
+// NewAppConnSnapshot creates a new instance of AppConnSnapshot. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
+func NewAppConnSnapshot(t mockConstructorTestingTNewAppConnSnapshot) *AppConnSnapshot {
+	mock := &AppConnSnapshot{}
+	mock.Mock.Test(t)
+
+	t.Cleanup(func() { mock.AssertExpectations(t) })
+
+	return mock
+}

internal/state/indexer/mocks/event_sink.go

@@ -165,3 +165,18 @@ func (_m *EventSink) Type() indexer.EventSinkType {
 
 	return r0
 }
+
+type mockConstructorTestingTNewEventSink interface {
+	mock.TestingT
+	Cleanup(func())
+}
+
+// NewEventSink creates a new instance of EventSink. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
+func NewEventSink(t mockConstructorTestingTNewEventSink) *EventSink {
+	mock := &EventSink{}
+	mock.Mock.Test(t)
+
+	t.Cleanup(func() { mock.AssertExpectations(t) })
+
+	return mock
+}

internal/state/mocks/block_store.go

@@ -208,3 +208,18 @@ func (_m *BlockStore) Size() int64 {
 
 	return r0
 }
+
+type mockConstructorTestingTNewBlockStore interface {
+	mock.TestingT
+	Cleanup(func())
+}
+
+// NewBlockStore creates a new instance of BlockStore. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
+func NewBlockStore(t mockConstructorTestingTNewBlockStore) *BlockStore {
+	mock := &BlockStore{}
+	mock.Mock.Test(t)
+
+	t.Cleanup(func() { mock.AssertExpectations(t) })
+
+	return mock
+}

internal/state/mocks/evidence_pool.go

@@ -68,3 +68,18 @@ func (_m *EvidencePool) PendingEvidence(maxBytes int64) ([]types.Evidence, int64
 func (_m *EvidencePool) Update(_a0 state.State, _a1 types.EvidenceList) {
 	_m.Called(_a0, _a1)
 }
+
+type mockConstructorTestingTNewEvidencePool interface {
+	mock.TestingT
+	Cleanup(func())
+}
+
+// NewEvidencePool creates a new instance of EvidencePool. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
+func NewEvidencePool(t mockConstructorTestingTNewEvidencePool) *EvidencePool {
+	mock := &EvidencePool{}
+	mock.Mock.Test(t)
+
+	t.Cleanup(func() { mock.AssertExpectations(t) })
+
+	return mock
+}

internal/state/mocks/store.go

@@ -186,3 +186,18 @@ func (_m *Store) SaveValidatorSets(_a0 int64, _a1 int64, _a2 *types.ValidatorSet
 
 	return r0
 }
+
+type mockConstructorTestingTNewStore interface {
+	mock.TestingT
+	Cleanup(func())
+}
+
+// NewStore creates a new instance of Store. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
+func NewStore(t mockConstructorTestingTNewStore) *Store {
+	mock := &Store{}
+	mock.Mock.Test(t)
+
+	t.Cleanup(func() { mock.AssertExpectations(t) })
+
+	return mock
+}

internal/statesync/mocks/state_provider.go

@@ -82,3 +82,18 @@ func (_m *StateProvider) State(ctx context.Context, height uint64) (state.State,
 
 	return r0, r1
 }
+
+type mockConstructorTestingTNewStateProvider interface {
+	mock.TestingT
+	Cleanup(func())
+}
+
+// NewStateProvider creates a new instance of StateProvider. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
+func NewStateProvider(t mockConstructorTestingTNewStateProvider) *StateProvider {
+	mock := &StateProvider{}
+	mock.Mock.Test(t)
+
+	t.Cleanup(func() { mock.AssertExpectations(t) })
+
+	return mock
+}

internal/statesync/stateprovider.go

@@ -388,7 +388,7 @@ func (s *stateProviderP2P) consensusParams(ctx context.Context, height int64) (t
 				for {
 					iterCount++
 					select {
-					case s.paramsSendCh <- p2p.Envelope{
+					case requestCh <- p2p.Envelope{
 						To: peer,
 						Message: &ssproto.ParamsRequest{
 							Height: uint64(height),

libs/log/default.go

@@ -75,7 +75,7 @@ func MustNewDefaultLogger(format, level string, trace bool) Logger {
 }
 
 func (l defaultLogger) Info(msg string, keyVals ...interface{}) {
-	l.Logger.Info().Fields(getLogFields(keyVals...)).Msg(msg)
+	l.Logger.Info().Fields(keyVals).Msg(msg)
 }
 
 func (l defaultLogger) Error(msg string, keyVals ...interface{}) {
@@ -84,29 +84,16 @@ func (l defaultLogger) Error(msg string, keyVals ...interface{}) {
 		e = e.Stack()
 	}
 
-	e.Fields(getLogFields(keyVals...)).Msg(msg)
+	e.Fields(keyVals).Msg(msg)
 }
 
 func (l defaultLogger) Debug(msg string, keyVals ...interface{}) {
-	l.Logger.Debug().Fields(getLogFields(keyVals...)).Msg(msg)
+	l.Logger.Debug().Fields(keyVals).Msg(msg)
 }
 
 func (l defaultLogger) With(keyVals ...interface{}) Logger {
 	return defaultLogger{
-		Logger: l.Logger.With().Fields(getLogFields(keyVals...)).Logger(),
+		Logger: l.Logger.With().Fields(keyVals).Logger(),
 		trace:  l.trace,
 	}
 }
-
-func getLogFields(keyVals ...interface{}) map[string]interface{} {
-	if len(keyVals)%2 != 0 {
-		return nil
-	}
-
-	fields := make(map[string]interface{}, len(keyVals))
-	for i := 0; i < len(keyVals); i += 2 {
-		fields[fmt.Sprint(keyVals[i])] = keyVals[i+1]
-	}
-
-	return fields
-}

light/client.go

@@ -1018,7 +1018,12 @@ func (c *Client) findNewPrimary(ctx context.Context, height int64, remove bool)
 
 	// process all the responses as they come in
 	for i := 0; i < cap(witnessResponsesC); i++ {
-		response := <-witnessResponsesC
+		var response witnessResponse
+		select {
+		case response = <-witnessResponsesC:
+		case <-ctx.Done():
+			return nil, ctx.Err()
+		}
 		switch response.err {
 		// success! We have found a new primary
 		case nil:
@@ -1047,10 +1052,6 @@ func (c *Client) findNewPrimary(ctx context.Context, height int64, remove bool)
 			// return the light block that new primary responded with
 			return response.lb, nil
 
-		// catch canceled contexts or deadlines
-		case context.Canceled, context.DeadlineExceeded:
-			return nil, response.err
-
 		// process benign errors by logging them only
 		case provider.ErrNoResponse, provider.ErrLightBlockNotFound, provider.ErrHeightTooHigh:
 			lastError = response.err

light/provider/mocks/provider.go

@@ -51,3 +51,18 @@ func (_m *Provider) ReportEvidence(_a0 context.Context, _a1 types.Evidence) erro
 
 	return r0
 }
+
+type mockConstructorTestingTNewProvider interface {
+	mock.TestingT
+	Cleanup(func())
+}
+
+// NewProvider creates a new instance of Provider. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
+func NewProvider(t mockConstructorTestingTNewProvider) *Provider {
+	mock := &Provider{}
+	mock.Mock.Test(t)
+
+	t.Cleanup(func() { mock.AssertExpectations(t) })
+
+	return mock
+}

light/rpc/mocks/light_client.go

@@ -99,3 +99,18 @@ func (_m *LightClient) VerifyLightBlockAtHeight(ctx context.Context, height int6
 
 	return r0, r1
 }
+
+type mockConstructorTestingTNewLightClient interface {
+	mock.TestingT
+	Cleanup(func())
+}
+
+// NewLightClient creates a new instance of LightClient. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
+func NewLightClient(t mockConstructorTestingTNewLightClient) *LightClient {
+	mock := &LightClient{}
+	mock.Mock.Test(t)
+
+	t.Cleanup(func() { mock.AssertExpectations(t) })
+
+	return mock
+}

node/node.go

@@ -250,7 +250,7 @@ func makeNode(cfg *config.Config,
 
 	// Determine whether we should do block sync. This must happen after the handshake, since the
 	// app may modify the validator set, specifying ourself as the only validator.
-	blockSync := cfg.BlockSync.Enable && !onlyValidatorIsUs(state, pubKey)
+	blockSync := !onlyValidatorIsUs(state, pubKey)
 
 	logNodeStartupInfo(state, pubKey, logger, consensusLogger, cfg.Mode)
 
@@ -265,7 +265,7 @@ func makeNode(cfg *config.Config,
 	p2pLogger := logger.With("module", "p2p")
 	transport := createTransport(p2pLogger, cfg)
 
-	peerManager, peerCloser, err := createPeerManager(cfg, dbProvider, p2pLogger, nodeKey.ID)
+	peerManager, peerCloser, err := createPeerManager(cfg, dbProvider, p2pLogger, nodeKey.ID, nodeMetrics.p2p)
 	closers = append(closers, peerCloser)
 	if err != nil {
 		return nil, combineCloseError(
@@ -561,7 +561,7 @@ func makeSeedNode(cfg *config.Config,
 	p2pLogger := logger.With("module", "p2p")
 	transport := createTransport(p2pLogger, cfg)
 
-	peerManager, closer, err := createPeerManager(cfg, dbProvider, p2pLogger, nodeKey.ID)
+	peerManager, closer, err := createPeerManager(cfg, dbProvider, p2pLogger, nodeKey.ID, p2pMetrics)
 	if err != nil {
 		return nil, combineCloseError(
 			fmt.Errorf("failed to create peer manager: %w", err),
@@ -700,10 +700,8 @@ func (n *nodeImpl) OnStart() error {
 	}
 
 	if n.config.Mode != config.ModeSeed {
-		if n.config.BlockSync.Version == config.BlockSyncV0 {
-			if err := n.bcReactor.Start(); err != nil {
-				return err
-			}
+		if err := n.bcReactor.Start(); err != nil {
+			return err
 		}
 
 		// Start the real consensus reactor separately since the switch uses the shim.
@@ -787,22 +785,18 @@ func (n *nodeImpl) OnStart() error {
 			// TODO: Some form of orchestrator is needed here between the state
 			// advancing reactors to be able to control which one of the three
 			// is running
-			if n.config.BlockSync.Enable {
-				// FIXME Very ugly to have these metrics bleed through here.
-				n.consensusReactor.SetBlockSyncingMetrics(1)
-				if err := bcR.SwitchToBlockSync(state); err != nil {
-					n.Logger.Error("failed to switch to block sync", "err", err)
-					return
-				}
-
-				d := types.EventDataBlockSyncStatus{Complete: false, Height: state.LastBlockHeight}
-				if err := n.eventBus.PublishEventBlockSyncStatus(d); err != nil {
-					n.eventBus.Logger.Error("failed to emit the block sync starting event", "err", err)
-				}
-
-			} else {
-				n.consensusReactor.SwitchToConsensus(state, true)
+			// FIXME Very ugly to have these metrics bleed through here.
+			n.consensusReactor.SetBlockSyncingMetrics(1)
+			if err := bcR.SwitchToBlockSync(state); err != nil {
+				n.Logger.Error("failed to switch to block sync", "err", err)
+				return
 			}
+
+			s := types.EventDataBlockSyncStatus{Complete: false, Height: state.LastBlockHeight}
+			if err := n.eventBus.PublishEventBlockSyncStatus(s); err != nil {
+				n.eventBus.Logger.Error("failed to emit the block sync starting event", "err", err)
+			}
+
 		}()
 	}
 
@@ -830,11 +824,10 @@ func (n *nodeImpl) OnStop() {
 
 	if n.config.Mode != config.ModeSeed {
 		// now stop the reactors
-		if n.config.BlockSync.Version == config.BlockSyncV0 {
-			// Stop the real blockchain reactor separately since the switch uses the shim.
-			if err := n.bcReactor.Stop(); err != nil {
-				n.Logger.Error("failed to stop the blockchain reactor", "err", err)
-			}
+
+		// Stop the real blockchain reactor separately since the switch uses the shim.
+		if err := n.bcReactor.Stop(); err != nil {
+			n.Logger.Error("failed to stop the blockchain reactor", "err", err)
 		}
 
 		// Stop the real consensus reactor separately since the switch uses the shim.
@@ -1246,7 +1239,9 @@ func createAndStartPrivValidatorGRPCClient(
 
 func getRouterConfig(conf *config.Config, proxyApp proxy.AppConns) p2p.RouterOptions {
 	opts := p2p.RouterOptions{
-		QueueType: conf.P2P.QueueType,
+		QueueType:        conf.P2P.QueueType,
+		HandshakeTimeout: conf.P2P.HandshakeTimeout,
+		DialTimeout:      conf.P2P.DialTimeout,
 	}
 
 	if conf.P2P.MaxNumInboundPeers > 0 {

node/setup.go

@@ -17,7 +17,6 @@ import (
 	"github.com/tendermint/tendermint/config"
 	"github.com/tendermint/tendermint/crypto"
 	bcv0 "github.com/tendermint/tendermint/internal/blocksync/v0"
-	bcv2 "github.com/tendermint/tendermint/internal/blocksync/v2"
 	"github.com/tendermint/tendermint/internal/consensus"
 	"github.com/tendermint/tendermint/internal/evidence"
 	"github.com/tendermint/tendermint/internal/mempool"
@@ -240,7 +239,6 @@ func createMempoolReactor(
 		reactor := mempoolv0.NewReactor(
 			logger,
 			cfg.Mempool,
-			peerManager,
 			mp,
 			channels[mempool.MempoolChannel],
 			peerUpdates,
@@ -266,7 +264,6 @@ func createMempoolReactor(
 		reactor := mempoolv1.NewReactor(
 			logger,
 			cfg.Mempool,
-			peerManager,
 			mp,
 			channels[mempool.MempoolChannel],
 			peerUpdates,
@@ -341,6 +338,10 @@ func createBlockchainReactor(
 	metrics *consensus.Metrics,
 ) (*p2p.ReactorShim, service.Service, error) {
 
+	if !cfg.BlockSync.Enable {
+		logger.Error("blocksync.enable = false, but Tendermint no longer allows blocksync to be disabled. This setting is now ignored and will be removed in the next version.")
+	}
+
 	logger = logger.With("module", "blockchain")
 
 	switch cfg.BlockSync.Version {
@@ -444,12 +445,23 @@ func createConsensusReactor(
 }
 
 func createTransport(logger log.Logger, cfg *config.Config) *p2p.MConnTransport {
+	var maxAccepted uint32
+	switch {
+	case cfg.P2P.MaxConnections > 0 && !cfg.P2P.UseLegacy:
+		maxAccepted = uint32(cfg.P2P.MaxConnections) +
+			uint32(len(tmstrings.SplitAndTrimEmpty(cfg.P2P.UnconditionalPeerIDs, ",", " ")))
+
+	case cfg.P2P.MaxNumInboundPeers > 0:
+		maxAccepted = uint32(cfg.P2P.MaxNumInboundPeers) +
+			uint32(len(tmstrings.SplitAndTrimEmpty(cfg.P2P.UnconditionalPeerIDs, ",", " ")))
+	default:
+		maxAccepted = 0
+	}
+
 	return p2p.NewMConnTransport(
 		logger, p2p.MConnConfig(cfg.P2P), []*p2p.ChannelDescriptor{},
 		p2p.MConnTransportOptions{
-			MaxAcceptedConnections: uint32(cfg.P2P.MaxNumInboundPeers +
-				len(tmstrings.SplitAndTrimEmpty(cfg.P2P.UnconditionalPeerIDs, ",", " ")),
-			),
+			MaxAcceptedConnections: maxAccepted,
 		},
 	)
 }
@@ -459,6 +471,7 @@ func createPeerManager(
 	dbProvider config.DBProvider,
 	p2pLogger log.Logger,
 	nodeID types.NodeID,
+	metrics *p2p.Metrics,
 ) (*p2p.PeerManager, closer, error) {
 
 	selfAddr, err := p2p.ParseNodeAddress(nodeID.AddressString(cfg.P2P.ExternalAddress))
@@ -489,21 +502,34 @@ func createPeerManager(
 		maxConns = 64
 	}
 
+	var maxOutgoingConns uint16
+	switch {
+	case cfg.P2P.MaxOutgoingConnections > 0:
+		maxOutgoingConns = cfg.P2P.MaxOutgoingConnections
+	default:
+		maxOutgoingConns = maxConns / 2
+	}
+
 	privatePeerIDs := make(map[types.NodeID]struct{})
 	for _, id := range tmstrings.SplitAndTrimEmpty(cfg.P2P.PrivatePeerIDs, ",", " ") {
 		privatePeerIDs[types.NodeID(id)] = struct{}{}
 	}
 
+	const maxUpgradeConns = 4
+
 	options := p2p.PeerManagerOptions{
-		SelfAddress:            selfAddr,
-		MaxConnected:           maxConns,
-		MaxConnectedUpgrade:    4,
-		MaxPeers:               1000,
-		MinRetryTime:           250 * time.Millisecond,
-		MaxRetryTime:           30 * time.Minute,
-		MaxRetryTimePersistent: 5 * time.Minute,
-		RetryTimeJitter:        5 * time.Second,
-		PrivatePeers:           privatePeerIDs,
+		SelfAddress:              selfAddr,
+		MaxConnected:             maxConns,
+		MaxOutgoingConnections:   maxOutgoingConns,
+		MaxConnectedUpgrade:      maxUpgradeConns,
+		DisconnectCooldownPeriod: 2 * time.Second,
+		MaxPeers:                 maxUpgradeConns + 4*maxConns,
+		MinRetryTime:             250 * time.Millisecond,
+		MaxRetryTime:             30 * time.Minute,
+		MaxRetryTimePersistent:   5 * time.Minute,
+		RetryTimeJitter:          5 * time.Second,
+		PrivatePeers:             privatePeerIDs,
+		Metrics:                  metrics,
 	}
 
 	peers := []p2p.NodeAddress{}
@@ -734,10 +760,8 @@ func makeNodeInfo(
 	switch cfg.BlockSync.Version {
 	case config.BlockSyncV0:
 		bcChannel = byte(bcv0.BlockSyncChannel)
-
 	case config.BlockSyncV2:
-		bcChannel = bcv2.BlockchainChannel
-
+		return types.NodeInfo{}, fmt.Errorf("unsupported blocksync version %s", cfg.BlockSync.Version)
 	default:
 		return types.NodeInfo{}, fmt.Errorf("unknown blocksync version %s", cfg.BlockSync.Version)
 	}

proto/tendermint/p2p/types.pb.go

@@ -243,6 +243,7 @@ type PeerInfo struct {
 	ID            string             `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
 	AddressInfo   []*PeerAddressInfo `protobuf:"bytes,2,rep,name=address_info,json=addressInfo,proto3" json:"address_info,omitempty"`
 	LastConnected *time.Time         `protobuf:"bytes,3,opt,name=last_connected,json=lastConnected,proto3,stdtime" json:"last_connected,omitempty"`
+	Inactive      bool               `protobuf:"varint,4,opt,name=inactive,proto3" json:"inactive,omitempty"`
 }
 
 func (m *PeerInfo) Reset()         { *m = PeerInfo{} }
@@ -299,6 +300,13 @@ func (m *PeerInfo) GetLastConnected() *time.Time {
 	return nil
 }
 
+func (m *PeerInfo) GetInactive() bool {
+	if m != nil {
+		return m.Inactive
+	}
+	return false
+}
+
 type PeerAddressInfo struct {
 	Address         string     `protobuf:"bytes,1,opt,name=address,proto3" json:"address,omitempty"`
 	LastDialSuccess *time.Time `protobuf:"bytes,2,opt,name=last_dial_success,json=lastDialSuccess,proto3,stdtime" json:"last_dial_success,omitempty"`
@@ -378,46 +386,46 @@ func init() {
 func init() { proto.RegisterFile("tendermint/p2p/types.proto", fileDescriptor_c8a29e659aeca578) }
 
 var fileDescriptor_c8a29e659aeca578 = []byte{
-	// 610 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x8c, 0x54, 0xcd, 0x4e, 0x1b, 0x3d,
-	0x14, 0xcd, 0x24, 0x21, 0x09, 0x37, 0x84, 0xf0, 0x59, 0xe8, 0xd3, 0x10, 0xa9, 0x19, 0x14, 0x36,
-	0xac, 0x26, 0x52, 0xaa, 0x2e, 0xba, 0x64, 0x40, 0xad, 0x22, 0x55, 0x25, 0x9a, 0xa2, 0x2e, 0xda,
-	0xc5, 0x68, 0x32, 0x76, 0x82, 0xc5, 0xc4, 0xb6, 0x3c, 0x4e, 0x4b, 0xdf, 0x82, 0x37, 0xe9, 0x63,
-	0x94, 0x25, 0xcb, 0xae, 0xd2, 0x6a, 0xd8, 0xf6, 0x21, 0x2a, 0xdb, 0x33, 0x40, 0xa2, 0x2e, 0xd8,
-	0xf9, 0xdc, 0xe3, 0x73, 0xee, 0x8f, 0xad, 0x0b, 0x3d, 0x45, 0x18, 0x26, 0x72, 0x41, 0x99, 0x1a,
-	0x8a, 0x91, 0x18, 0xaa, 0x6f, 0x82, 0x64, 0xbe, 0x90, 0x5c, 0x71, 0xb4, 0xfb, 0xc8, 0xf9, 0x62,
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-	0x53, 0x32, 0x34, 0x68, 0xba, 0x9c, 0x0d, 0x15, 0x5d, 0x90, 0x4c, 0xc5, 0x0b, 0x61, 0x2f, 0x0c,
-	0x2e, 0xa0, 0x3b, 0xd1, 0x87, 0x84, 0xa7, 0x1f, 0x89, 0xcc, 0x28, 0x67, 0xe8, 0x00, 0x6a, 0x62,
-	0x24, 0x5c, 0xe7, 0xd0, 0x39, 0xae, 0x07, 0xcd, 0x7c, 0xe5, 0xd5, 0x26, 0xa3, 0x49, 0xa8, 0x63,
-	0x68, 0x1f, 0xb6, 0xa6, 0x29, 0x4f, 0xae, 0xdc, 0xaa, 0x26, 0x43, 0x0b, 0xd0, 0x1e, 0xd4, 0x62,
-	0x21, 0xdc, 0x9a, 0x89, 0xe9, 0xe3, 0xe0, 0x47, 0x15, 0x5a, 0xef, 0x39, 0x26, 0x63, 0x36, 0xe3,
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-	0x8e, 0x49, 0x44, 0xb1, 0x29, 0x64, 0x3b, 0x80, 0x7c, 0xe5, 0x35, 0x4c, 0xc2, 0xb3, 0xb0, 0xa1,
-	0xa9, 0x31, 0x46, 0x1e, 0xb4, 0x53, 0x9a, 0x29, 0xc2, 0xa2, 0x18, 0x63, 0x69, 0xaa, 0xdb, 0x0e,
-	0xc1, 0x86, 0x4e, 0x30, 0x96, 0xc8, 0x85, 0x26, 0x23, 0xea, 0x2b, 0x97, 0x57, 0x6e, 0xdd, 0x90,
-	0x25, 0xd4, 0x4c, 0x59, 0xe8, 0x96, 0x65, 0x0a, 0x88, 0x7a, 0xd0, 0x4a, 0x2e, 0x63, 0xc6, 0x48,
-	0x9a, 0xb9, 0x8d, 0x43, 0xe7, 0x78, 0x27, 0x7c, 0xc0, 0x5a, 0xb5, 0xe0, 0x8c, 0x5e, 0x11, 0xe9,
-	0x36, 0xad, 0xaa, 0x80, 0xe8, 0x35, 0x6c, 0x71, 0x75, 0x49, 0xa4, 0xdb, 0x32, 0x6d, 0xbf, 0xd8,
-	0x6c, 0xbb, 0x1c, 0xd5, 0xb9, 0xbe, 0x54, 0x34, 0x6d, 0x15, 0x83, 0xcf, 0xd0, 0x59, 0x63, 0xd1,
-	0x01, 0xb4, 0xd4, 0x75, 0x44, 0x19, 0x26, 0xd7, 0x66, 0x8a, 0xdb, 0x61, 0x53, 0x5d, 0x8f, 0x35,
-	0x44, 0x43, 0x68, 0x4b, 0x91, 0x98, 0x76, 0x49, 0x96, 0x15, 0xa3, 0xd9, 0xcd, 0x57, 0x1e, 0x84,
-	0x93, 0xd3, 0x13, 0x1b, 0x0d, 0x41, 0x8a, 0xa4, 0x38, 0x0f, 0xbe, 0x3b, 0xd0, 0x9a, 0x10, 0x22,
-	0xcd, 0x33, 0xfd, 0x0f, 0x55, 0x8a, 0xad, 0x65, 0xd0, 0xc8, 0x57, 0x5e, 0x75, 0x7c, 0x16, 0x56,
-	0x29, 0x46, 0x01, 0xec, 0x14, 0x8e, 0x11, 0x65, 0x33, 0xee, 0x56, 0x0f, 0x6b, 0xff, 0x7c, 0x3a,
-	0x42, 0x64, 0xe1, 0xab, 0xed, 0xc2, 0x76, 0xfc, 0x08, 0xd0, 0x5b, 0xd8, 0x4d, 0xe3, 0x4c, 0x45,
-	0x09, 0x67, 0x8c, 0x24, 0x8a, 0x60, 0xf3, 0x1c, 0xed, 0x51, 0xcf, 0xb7, 0xff, 0xd3, 0x2f, 0xff,
-	0xa7, 0x7f, 0x51, 0xfe, 0xcf, 0xa0, 0x7e, 0xf3, 0xcb, 0x73, 0xc2, 0x8e, 0xd6, 0x9d, 0x96, 0xb2,
-	0xc1, 0x1f, 0x07, 0xba, 0x1b, 0x99, 0xf4, 0xdc, 0xcb, 0x96, 0x8b, 0x81, 0x14, 0x10, 0xbd, 0x83,
-	0xff, 0x4c, 0x5a, 0x4c, 0xe3, 0x34, 0xca, 0x96, 0x49, 0x52, 0x8e, 0xe5, 0x39, 0x99, 0xbb, 0x5a,
-	0x7a, 0x46, 0xe3, 0xf4, 0x83, 0x15, 0xae, 0xbb, 0xcd, 0x62, 0x9a, 0x2e, 0x25, 0x79, 0x76, 0x1f,
-	0x0f, 0x6e, 0x6f, 0xac, 0x10, 0x1d, 0x41, 0xe7, 0xa9, 0x51, 0x66, 0xfe, 0x60, 0x27, 0xdc, 0xc1,
-	0x8f, 0x77, 0xb2, 0xe0, 0xfc, 0x36, 0xef, 0x3b, 0x77, 0x79, 0xdf, 0xf9, 0x9d, 0xf7, 0x9d, 0x9b,
-	0xfb, 0x7e, 0xe5, 0xee, 0xbe, 0x5f, 0xf9, 0x79, 0xdf, 0xaf, 0x7c, 0x7a, 0x35, 0xa7, 0xea, 0x72,
-	0x39, 0xf5, 0x13, 0xbe, 0x18, 0x3e, 0xd9, 0x12, 0x4f, 0x17, 0x86, 0xd9, 0x05, 0xeb, 0x1b, 0x64,
-	0xda, 0x30, 0xd1, 0x97, 0x7f, 0x03, 0x00, 0x00, 0xff, 0xff, 0x0b, 0xe9, 0x56, 0xd3, 0x5a, 0x04,
-	0x00, 0x00,
+	// 621 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x8c, 0x54, 0x41, 0x4f, 0xdb, 0x30,
+	0x14, 0x6e, 0xda, 0xd2, 0x96, 0x57, 0x4a, 0x99, 0x85, 0xa6, 0x50, 0x69, 0x0d, 0x2a, 0x17, 0x4e,
+	0x89, 0xd4, 0x69, 0x87, 0x1d, 0x09, 0x68, 0x53, 0xa5, 0x69, 0x54, 0x1e, 0xda, 0x61, 0x3b, 0x44,
+	0x69, 0xec, 0x16, 0x8b, 0xd4, 0xb6, 0x12, 0x97, 0xb1, 0x7f, 0xc1, 0xbf, 0x1a, 0xd2, 0x2e, 0x1c,
+	0x77, 0xea, 0xa6, 0x70, 0xdd, 0x8f, 0x98, 0xec, 0x24, 0xd0, 0x56, 0x3b, 0x70, 0xf3, 0xf7, 0x9e,
+	0xbf, 0xcf, 0xdf, 0x7b, 0xcf, 0x7a, 0xd0, 0x53, 0x94, 0x13, 0x9a, 0xcc, 0x19, 0x57, 0x9e, 0x1c,
+	0x4a, 0x4f, 0x7d, 0x97, 0x34, 0x75, 0x65, 0x22, 0x94, 0x40, 0xbb, 0x4f, 0x39, 0x57, 0x0e, 0x65,
+	0x6f, 0x7f, 0x26, 0x66, 0xc2, 0xa4, 0x3c, 0x7d, 0xca, 0x6f, 0xf5, 0x9c, 0x99, 0x10, 0xb3, 0x98,
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+	0x74, 0xc7, 0xfa, 0x10, 0x89, 0xf8, 0x33, 0x4d, 0x52, 0x26, 0x38, 0x3a, 0x80, 0x9a, 0x1c, 0x4a,
+	0xdb, 0x3a, 0xb4, 0x8e, 0xeb, 0x7e, 0x33, 0x5b, 0x3a, 0xb5, 0xf1, 0x70, 0x8c, 0x75, 0x0c, 0xed,
+	0xc3, 0xd6, 0x24, 0x16, 0xd1, 0x95, 0x5d, 0xd5, 0x49, 0x9c, 0x03, 0xb4, 0x07, 0xb5, 0x50, 0x4a,
+	0xbb, 0x66, 0x62, 0xfa, 0x38, 0xf8, 0x51, 0x85, 0xd6, 0x47, 0x41, 0xe8, 0x88, 0x4f, 0x05, 0x1a,
+	0xc3, 0x9e, 0x2c, 0x9e, 0x08, 0xae, 0xf3, 0x37, 0x8c, 0x78, 0x7b, 0xe8, 0xb8, 0xeb, 0x45, 0xb8,
+	0x1b, 0x56, 0xfc, 0xfa, 0xdd, 0xd2, 0xa9, 0xe0, 0xae, 0xdc, 0x70, 0x78, 0x04, 0x4d, 0x2e, 0x08,
+	0x0d, 0x18, 0x31, 0x46, 0xb6, 0x7d, 0xc8, 0x96, 0x4e, 0xc3, 0x3c, 0x78, 0x86, 0x1b, 0x3a, 0x35,
+	0x22, 0xc8, 0x81, 0x76, 0xcc, 0x52, 0x45, 0x79, 0x10, 0x12, 0x92, 0x18, 0x77, 0xdb, 0x18, 0xf2,
+	0xd0, 0x09, 0x21, 0x09, 0xb2, 0xa1, 0xc9, 0xa9, 0xfa, 0x26, 0x92, 0x2b, 0xbb, 0x6e, 0x92, 0x25,
+	0xd4, 0x99, 0xd2, 0xe8, 0x56, 0x9e, 0x29, 0x20, 0xea, 0x41, 0x2b, 0xba, 0x0c, 0x39, 0xa7, 0x71,
+	0x6a, 0x37, 0x0e, 0xad, 0xe3, 0x1d, 0xfc, 0x88, 0x35, 0x6b, 0x2e, 0x38, 0xbb, 0xa2, 0x89, 0xdd,
+	0xcc, 0x59, 0x05, 0x44, 0x6f, 0x61, 0x4b, 0xa8, 0x4b, 0x9a, 0xd8, 0x2d, 0x53, 0xf6, 0xab, 0xcd,
+	0xb2, 0xcb, 0x56, 0x9d, 0xeb, 0x4b, 0x45, 0xd1, 0x39, 0x63, 0xf0, 0x15, 0x3a, 0x6b, 0x59, 0x74,
+	0x00, 0x2d, 0x75, 0x13, 0x30, 0x4e, 0xe8, 0x8d, 0xe9, 0xe2, 0x36, 0x6e, 0xaa, 0x9b, 0x91, 0x86,
+	0xc8, 0x83, 0x76, 0x22, 0x23, 0x53, 0x2e, 0x4d, 0xd3, 0xa2, 0x35, 0xbb, 0xd9, 0xd2, 0x01, 0x3c,
+	0x3e, 0x3d, 0xc9, 0xa3, 0x18, 0x12, 0x19, 0x15, 0xe7, 0xc1, 0x4f, 0x0b, 0x5a, 0x63, 0x4a, 0x13,
+	0x33, 0xa6, 0x97, 0x50, 0x65, 0x24, 0x97, 0xf4, 0x1b, 0xd9, 0xd2, 0xa9, 0x8e, 0xce, 0x70, 0x95,
+	0x11, 0xe4, 0xc3, 0x4e, 0xa1, 0x18, 0x30, 0x3e, 0x15, 0x76, 0xf5, 0xb0, 0xf6, 0xdf, 0xd1, 0x51,
+	0x9a, 0x14, 0xba, 0x5a, 0x0e, 0xb7, 0xc3, 0x27, 0x80, 0xde, 0xc3, 0x6e, 0x1c, 0xa6, 0x2a, 0x88,
+	0x04, 0xe7, 0x34, 0x52, 0x94, 0x98, 0x71, 0xb4, 0x87, 0x3d, 0x37, 0xff, 0x9f, 0x6e, 0xf9, 0x3f,
+	0xdd, 0x8b, 0xf2, 0x7f, 0xfa, 0xf5, 0xdb, 0xdf, 0x8e, 0x85, 0x3b, 0x9a, 0x77, 0x5a, 0xd2, 0x74,
+	0xff, 0x19, 0x0f, 0x23, 0xc5, 0xae, 0xa9, 0x19, 0x5a, 0x0b, 0x3f, 0xe2, 0xc1, 0x5f, 0x0b, 0xba,
+	0x1b, 0x2e, 0xf4, 0x4c, 0xca, 0x76, 0x14, 0xcd, 0x2a, 0x20, 0xfa, 0x00, 0x2f, 0x8c, 0x25, 0xc2,
+	0xc2, 0x38, 0x48, 0x17, 0x51, 0x54, 0xb6, 0xec, 0x39, 0xae, 0xba, 0x9a, 0x7a, 0xc6, 0xc2, 0xf8,
+	0x53, 0x4e, 0x5c, 0x57, 0x9b, 0x86, 0x2c, 0x5e, 0x24, 0xf4, 0xd9, 0x35, 0x3e, 0xaa, 0xbd, 0xcb,
+	0x89, 0xe8, 0x08, 0x3a, 0xab, 0x42, 0xa9, 0x29, 0xb5, 0x83, 0x77, 0xc8, 0xd3, 0x9d, 0xd4, 0x3f,
+	0xbf, 0xcb, 0xfa, 0xd6, 0x7d, 0xd6, 0xb7, 0xfe, 0x64, 0x7d, 0xeb, 0xf6, 0xa1, 0x5f, 0xb9, 0x7f,
+	0xe8, 0x57, 0x7e, 0x3d, 0xf4, 0x2b, 0x5f, 0xde, 0xcc, 0x98, 0xba, 0x5c, 0x4c, 0xdc, 0x48, 0xcc,
+	0xbd, 0x95, 0x0d, 0xb2, 0xba, 0x4c, 0xcc, 0x9e, 0x58, 0xdf, 0x2e, 0x93, 0x86, 0x89, 0xbe, 0xfe,
+	0x17, 0x00, 0x00, 0xff, 0xff, 0x42, 0xcb, 0x37, 0x26, 0x76, 0x04, 0x00, 0x00,
 }
 
 func (m *ProtocolVersion) Marshal() (dAtA []byte, err error) {
@@ -600,6 +608,16 @@ func (m *PeerInfo) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 	_ = i
 	var l int
 	_ = l
+	if m.Inactive {
+		i--
+		if m.Inactive {
+			dAtA[i] = 1
+		} else {
+			dAtA[i] = 0
+		}
+		i--
+		dAtA[i] = 0x20
+	}
 	if m.LastConnected != nil {
 		n3, err3 := github_com_gogo_protobuf_types.StdTimeMarshalTo(*m.LastConnected, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdTime(*m.LastConnected):])
 		if err3 != nil {
@@ -792,6 +810,9 @@ func (m *PeerInfo) Size() (n int) {
 		l = github_com_gogo_protobuf_types.SizeOfStdTime(*m.LastConnected)
 		n += 1 + l + sovTypes(uint64(l))
 	}
+	if m.Inactive {
+		n += 2
+	}
 	return n
 }
 
@@ -1487,6 +1508,26 @@ func (m *PeerInfo) Unmarshal(dAtA []byte) error {
 				return err
 			}
 			iNdEx = postIndex
+		case 4:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Inactive", wireType)
+			}
+			var v int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowTypes
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				v |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			m.Inactive = bool(v != 0)
 		default:
 			iNdEx = preIndex
 			skippy, err := skipTypes(dAtA[iNdEx:])

proto/tendermint/p2p/types.proto

@@ -32,6 +32,7 @@ message PeerInfo {
   string                    id             = 1 [(gogoproto.customname) = "ID"];
   repeated PeerAddressInfo  address_info   = 2;
   google.protobuf.Timestamp last_connected = 3 [(gogoproto.stdtime) = true];
+  bool                      inactive       = 4;
 }
 
 message PeerAddressInfo {

rpc/client/mocks/client.go

@@ -800,3 +800,18 @@ func (_m *Client) Validators(ctx context.Context, height *int64, page *int, perP
 
 	return r0, r1
 }
+
+type mockConstructorTestingTNewClient interface {
+	mock.TestingT
+	Cleanup(func())
+}
+
+// NewClient creates a new instance of Client. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
+func NewClient(t mockConstructorTestingTNewClient) *Client {
+	mock := &Client{}
+	mock.Mock.Test(t)
+
+	t.Cleanup(func() { mock.AssertExpectations(t) })
+
+	return mock
+}

rpc/coretypes/responses_test.go

@@ -1,9 +1,18 @@
 package coretypes
 
 import (
+	"bytes"
+	"encoding/base64"
+	"encoding/json"
+	"fmt"
 	"testing"
 
+	"github.com/google/go-cmp/cmp"
 	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+
+	abci "github.com/tendermint/tendermint/abci/types"
+	pbcrypto "github.com/tendermint/tendermint/proto/tendermint/crypto"
 	"github.com/tendermint/tendermint/types"
 )
 
@@ -32,3 +41,54 @@ func TestStatusIndexer(t *testing.T) {
 		assert.Equal(t, tc.expected, status.TxIndexEnabled())
 	}
 }
+
+// A regression test for https://github.com/tendermint/tendermint/issues/8583.
+func TestResultBlockResults_regression8583(t *testing.T) {
+	const keyData = "0123456789abcdef0123456789abcdef" // 32 bytes
+	wantKey := base64.StdEncoding.EncodeToString([]byte(keyData))
+
+	rsp := &ResultBlockResults{
+		ValidatorUpdates: []abci.ValidatorUpdate{{
+			PubKey: pbcrypto.PublicKey{
+				Sum: &pbcrypto.PublicKey_Ed25519{Ed25519: []byte(keyData)},
+			},
+			Power: 400,
+		}},
+	}
+
+	// Use compact here so the test data remain legible. The output from the
+	// marshaler will have whitespace folded out so we need to do that too for
+	// the comparison to be valid.
+	var buf bytes.Buffer
+	require.NoError(t, json.Compact(&buf, []byte(fmt.Sprintf(`
+{
+  "height": 0,
+  "txs_results": null,
+  "total_gas_used": 0,
+  "begin_block_events": null,
+  "end_block_events": null,
+  "validator_updates": [
+    {
+      "pub_key":{"type": "tendermint/PubKeyEd25519", "value": "%s"},
+      "power": "400"
+    }
+  ],
+  "consensus_param_updates": null
+}`, wantKey))))
+
+	bits, err := json.Marshal(rsp)
+	if err != nil {
+		t.Fatalf("Encoding block result: %v", err)
+	}
+	if diff := cmp.Diff(buf.String(), string(bits)); diff != "" {
+		t.Errorf("Marshaled result (-want, +got):\n%s", diff)
+	}
+
+	back := new(ResultBlockResults)
+	if err := json.Unmarshal(bits, back); err != nil {
+		t.Fatalf("Unmarshaling: %v", err)
+	}
+	if diff := cmp.Diff(rsp, back); diff != "" {
+		t.Errorf("Unmarshaled result (-want, +got):\n%s", diff)
+	}
+}

rpc/jsonrpc/server/http_json_handler.go

@@ -147,9 +147,15 @@ func makeJSONRPCHandler(funcMap map[string]*RPCFunc, logger log.Logger) http.Han
 	}
 }
 
+func ensureBodyClose(next http.HandlerFunc) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		defer r.Body.Close()
+		next(w, r)
+	}
+}
+
 func handleInvalidJSONRPCPaths(next http.HandlerFunc) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		// Since the pattern "/" matches all paths not matched by other registered patterns,
 		//  we check whether the path is indeed "/", otherwise return a 404 error
 		if r.URL.Path != "/" {
 			http.NotFound(w, r)