e2e: more consistent node selection during tests

Architectural decision record for Proposer-based timestamps.

.github/CODEOWNERS

@@ -7,5 +7,4 @@
 # global owners are only requested if there isn't a more specific
 # codeowner specified below. For this reason, the global codeowners
 # are often repeated in package-level definitions.
-*       @alexanderbez @ebuchman @cmwaters @tessr @tychoish
-
+*       @alexanderbez @ebuchman @cmwaters @tessr @tychoish @williambanfield @creachadair

.github/workflows/coverage.yml

@@ -46,7 +46,7 @@ jobs:
         with:
           go-version: "1.16"
       - uses: actions/checkout@v2.3.4
-      - uses: technote-space/get-diff-action@v4
+      - uses: technote-space/get-diff-action@v5
         with:
           PATTERNS: |
             **/**.go
@@ -68,7 +68,7 @@ jobs:
         with:
           go-version: "1.16"
       - uses: actions/checkout@v2.3.4
-      - uses: technote-space/get-diff-action@v4
+      - uses: technote-space/get-diff-action@v5
         with:
           PATTERNS: |
             **/**.go
@@ -96,7 +96,7 @@ jobs:
     needs: tests
     steps:
       - uses: actions/checkout@v2.3.4
-      - uses: technote-space/get-diff-action@v4
+      - uses: technote-space/get-diff-action@v5
         with:
           PATTERNS: |
             **/**.go
@@ -121,7 +121,7 @@ jobs:
       - run: |
           cat ./*profile.out | grep -v "mode: atomic" >> coverage.txt
         if: env.GIT_DIFF
-      - uses: codecov/codecov-action@v1.5.0
+      - uses: codecov/codecov-action@v2.0.2
         with:
           file: ./coverage.txt
         if: env.GIT_DIFF

.github/workflows/docker.yml

@@ -40,17 +40,17 @@ jobs:
           platforms: all
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v1.3.0
+        uses: docker/setup-buildx-action@v1.5.0
 
       - name: Login to DockerHub
         if: ${{ github.event_name != 'pull_request' }}
-        uses: docker/login-action@v1.9.0
+        uses: docker/login-action@v1.10.0
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
 
       - name: Publish to Docker Hub
-        uses: docker/build-push-action@v2.4.0
+        uses: docker/build-push-action@v2.7.0
         with:
           context: .
           file: ./DOCKER/Dockerfile

.github/workflows/docs.yml

@@ -1,32 +0,0 @@
-name: Documentation
-# This job builds and deploys documentation to github pages.
-# It runs on every push to master, and can be manually triggered.
-on:
-  workflow_dispatch: # allow running workflow manually
-  push:
-    branches:
-      - master
-
-jobs:
-  build-and-deploy:
-    runs-on: ubuntu-latest
-    container:
-      image: tendermintdev/docker-website-deployment
-    steps:
-      - name: Checkout 🛎️
-        uses: actions/checkout@v2.3.4
-        with:
-          persist-credentials: false
-          fetch-depth: 0
-
-      - name: Install and Build 🔧
-        run: |
-          apk add rsync
-          make build-docs
-
-      - name: Deploy 🚀
-        uses: JamesIves/github-pages-deploy-action@4.1.2
-        with:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          BRANCH: gh-pages
-          FOLDER: ~/output

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

@@ -49,7 +49,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Notify Slack on failure
-        uses: rtCamp/action-slack-notify@f565a63638bd3615e76249bffab00fcb9dab90f7
+        uses: rtCamp/action-slack-notify@12e36fc18b0689399306c2e0b3e0f2978b7f1ee7
         env:
           SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK }}
           SLACK_CHANNEL: tendermint-internal
@@ -65,7 +65,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Notify Slack on success
-        uses: rtCamp/action-slack-notify@f565a63638bd3615e76249bffab00fcb9dab90f7
+        uses: rtCamp/action-slack-notify@12e36fc18b0689399306c2e0b3e0f2978b7f1ee7
         env:
           SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK }}
           SLACK_CHANNEL: tendermint-internal

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

@@ -17,7 +17,7 @@ jobs:
       fail-fast: false
       matrix:
         p2p: ['legacy', 'new', 'hybrid']
-        group: ['00', '01', '02', '03']
+        group: ['00', '01']
     runs-on: ubuntu-latest
     timeout-minutes: 60
     steps:
@@ -35,7 +35,7 @@ jobs:
       - name: Generate testnets
         working-directory: test/e2e
         # When changing -g, also change the matrix groups above
-        run: ./build/generator -g 4 -d networks/nightly/${{ matrix.p2p }} -p ${{ matrix.p2p }} 
+        run: ./build/generator -g 2 -d networks/nightly/${{ matrix.p2p }} -p ${{ matrix.p2p }}
 
       - name: Run ${{ matrix.p2p }} p2p testnets in group ${{ matrix.group }}
         working-directory: test/e2e
@@ -47,7 +47,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Notify Slack on failure
-        uses: rtCamp/action-slack-notify@f565a63638bd3615e76249bffab00fcb9dab90f7
+        uses: rtCamp/action-slack-notify@12e36fc18b0689399306c2e0b3e0f2978b7f1ee7
         env:
           SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK }}
           SLACK_CHANNEL: tendermint-internal
@@ -63,7 +63,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Notify Slack on success
-        uses: rtCamp/action-slack-notify@f565a63638bd3615e76249bffab00fcb9dab90f7
+        uses: rtCamp/action-slack-notify@12e36fc18b0689399306c2e0b3e0f2978b7f1ee7
         env:
           SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK }}
           SLACK_CHANNEL: tendermint-internal

.github/workflows/e2e.yml

@@ -18,7 +18,7 @@ jobs:
         with:
           go-version: '1.16'
       - uses: actions/checkout@v2.3.4
-      - uses: technote-space/get-diff-action@v4
+      - uses: technote-space/get-diff-action@v5
         with:
           PATTERNS: |
             **/**.go

.github/workflows/fuzz-nightly.yml

@@ -23,9 +23,14 @@ jobs:
         working-directory: test/fuzz
         run: go get -u github.com/dvyukov/go-fuzz/go-fuzz github.com/dvyukov/go-fuzz/go-fuzz-build
 
-      - name: Fuzz mempool
+      - name: Fuzz mempool-v1
         working-directory: test/fuzz
-        run: timeout -s SIGINT --preserve-status 10m make fuzz-mempool
+        run: timeout -s SIGINT --preserve-status 10m make fuzz-mempool-v1
+        continue-on-error: true
+
+      - name: Fuzz mempool-v0
+        working-directory: test/fuzz
+        run: timeout -s SIGINT --preserve-status 10m make fuzz-mempool-v0
         continue-on-error: true
 
       - name: Fuzz p2p-addrbook
@@ -76,7 +81,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Notify Slack if any crashers
-        uses: rtCamp/action-slack-notify@f565a63638bd3615e76249bffab00fcb9dab90f7
+        uses: rtCamp/action-slack-notify@12e36fc18b0689399306c2e0b3e0f2978b7f1ee7
         env:
           SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK }}
           SLACK_CHANNEL: tendermint-internal

.github/workflows/janitor.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 3
     steps:
-      - uses: styfle/cancel-workflow-action@0.9.0
+      - uses: styfle/cancel-workflow-action@0.9.1
         with:
           workflow_id: 1041851,1401230,2837803
           access_token: ${{ github.token }}

.github/workflows/linkchecker.yml

@@ -7,6 +7,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2.3.4
-      - uses: gaurav-nelson/github-action-markdown-link-check@1.0.12
+      - uses: gaurav-nelson/github-action-markdown-link-check@1.0.13
         with:
           folder-path: "docs"

.github/workflows/lint.yml

@@ -14,7 +14,7 @@ jobs:
     timeout-minutes: 8
     steps:
       - uses: actions/checkout@v2.3.4
-      - uses: technote-space/get-diff-action@v4
+      - uses: technote-space/get-diff-action@v5
         with:
           PATTERNS: |
             **/**.go

.github/workflows/proto-docker.yml

@@ -34,16 +34,16 @@ jobs:
           echo ::set-output name=tags::${TAGS}
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v1.3.0
+        uses: docker/setup-buildx-action@v1.5.0
 
       - name: Login to DockerHub
-        uses: docker/login-action@v1.9.0
+        uses: docker/login-action@v1.10.0
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
 
       - name: Publish to Docker Hub
-        uses: docker/build-push-action@v2.4.0
+        uses: docker/build-push-action@v2.7.0
         with:
           context: ./tools/proto
           file: ./tools/proto/Dockerfile

.github/workflows/stale.yml

@@ -7,12 +7,14 @@ jobs:
   stale:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/stale@v3.0.18
+      - uses: actions/stale@v4
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
           stale-pr-message: "This pull request has been automatically marked as stale because it has not had
     recent activity. It will be closed if no further activity occurs. Thank you
     for your contributions."
-          days-before-stale: 10
-          days-before-close: 4
+          days-before-stale: -1
+          days-before-close: -1
+          days-before-pr-stale: 10
+          days-before-pr-close: 4
           exempt-pr-labels: "S:wip"

.github/workflows/tests.yml

@@ -19,7 +19,7 @@ jobs:
         with:
           go-version: "1.16"
       - uses: actions/checkout@v2.3.4
-      - uses: technote-space/get-diff-action@v4
+      - uses: technote-space/get-diff-action@v5
         with:
           PATTERNS: |
             **/**.go
@@ -28,7 +28,7 @@ jobs:
       - name: install
         run: make install install_abci
         if: "env.GIT_DIFF != ''"
-      - uses: actions/cache@v2.1.5
+      - uses: actions/cache@v2.1.6
         with:
           path: ~/go/pkg/mod
           key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
@@ -36,44 +36,12 @@ jobs:
             ${{ runner.os }}-go-
         if: env.GIT_DIFF
       # Cache binaries for use by other jobs
-      - uses: actions/cache@v2.1.5
+      - uses: actions/cache@v2.1.6
         with:
           path: ~/go/bin
           key: ${{ runner.os }}-${{ github.sha }}-tm-binary
         if: env.GIT_DIFF
 
-  test_abci_apps:
-    runs-on: ubuntu-latest
-    needs: build
-    timeout-minutes: 5
-    steps:
-      - uses: actions/setup-go@v2
-        with:
-          go-version: "1.16"
-      - uses: actions/checkout@v2.3.4
-      - uses: technote-space/get-diff-action@v4
-        with:
-          PATTERNS: |
-            **/**.go
-            go.mod
-            go.sum
-      - uses: actions/cache@v2.1.5
-        with:
-          path: ~/go/pkg/mod
-          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
-          restore-keys: |
-            ${{ runner.os }}-go-
-        if: env.GIT_DIFF
-      - uses: actions/cache@v2.1.5
-        with:
-          path: ~/go/bin
-          key: ${{ runner.os }}-${{ github.sha }}-tm-binary
-        if: env.GIT_DIFF
-      - name: test_abci_apps
-        run: abci/tests/test_app/test.sh
-        shell: bash
-        if: env.GIT_DIFF
-
   test_abci_cli:
     runs-on: ubuntu-latest
     needs: build
@@ -83,20 +51,20 @@ jobs:
         with:
           go-version: "1.16"
       - uses: actions/checkout@v2.3.4
-      - uses: technote-space/get-diff-action@v4
+      - uses: technote-space/get-diff-action@v5
         with:
           PATTERNS: |
             **/**.go
             go.mod
             go.sum
-      - uses: actions/cache@v2.1.5
+      - uses: actions/cache@v2.1.6
         with:
           path: ~/go/pkg/mod
           key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
           restore-keys: |
             ${{ runner.os }}-go-
         if: env.GIT_DIFF
-      - uses: actions/cache@v2.1.5
+      - uses: actions/cache@v2.1.6
         with:
           path: ~/go/bin
           key: ${{ runner.os }}-${{ github.sha }}-tm-binary
@@ -114,20 +82,20 @@ jobs:
         with:
           go-version: "1.16"
       - uses: actions/checkout@v2.3.4
-      - uses: technote-space/get-diff-action@v4
+      - uses: technote-space/get-diff-action@v5
         with:
           PATTERNS: |
             **/**.go
             go.mod
             go.sum
-      - uses: actions/cache@v2.1.5
+      - uses: actions/cache@v2.1.6
         with:
           path: ~/go/pkg/mod
           key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
           restore-keys: |
             ${{ runner.os }}-go-
         if: env.GIT_DIFF
-      - uses: actions/cache@v2.1.5
+      - uses: actions/cache@v2.1.6
         with:
           path: ~/go/bin
           key: ${{ runner.os }}-${{ github.sha }}-tm-binary

.gitignore

@@ -15,7 +15,7 @@
 .vagrant
 .vendor-new/
 .vscode/
-abci-cli
+abci/abci-cli
 addrbook.json
 artifacts/*
 build/*
@@ -24,6 +24,7 @@ docs/.vuepress/dist
 docs/_build
 docs/dist
 docs/node_modules/
+docs/spec
 index.html.md
 libs/pubsub/query/fuzz_test/output
 profile\.out

.golangci.yml

@@ -39,6 +39,7 @@ linters:
     # - wsl
     # - gocognit
     - nolintlint
+    - asciicheck
 
 issues:
   exclude-rules:

CHANGELOG.md

@@ -1,14 +1,57 @@
 # Changelog
 
+Friendly reminder, we have a [bug bounty program](https://hackerone.com/tendermint).
+
+## v0.34.12
+
+*August 17, 2021*
+
+Special thanks to external contributors on this release: @JayT106.
+
+### FEATURES
+
+- [rpc] [\#6717](https://github.com/tendermint/tendermint/pull/6717) introduce
+  `/genesis_chunked` rpc endpoint for handling large genesis files by chunking them (@tychoish)
+
+### IMPROVEMENTS
+
+- [rpc] [\#6825](https://github.com/tendermint/tendermint/issues/6825) Remove egregious INFO log from `ABCI#Query` RPC. (@alexanderbez)
+
+### BUG FIXES
+
+- [light] [\#6685](https://github.com/tendermint/tendermint/pull/6685) fix bug
+  with incorrectly handling contexts that would occasionally freeze state sync. (@cmwaters)
+- [privval] [\#6748](https://github.com/tendermint/tendermint/issues/6748) Fix vote timestamp to prevent chain halt (@JayT106)
+
+## v0.34.11
+
+*June 18, 2021*
+
+This release improves the robustness of statesync; tweaking channel priorities and timeouts and
+adding two new parameters to the state sync config.
+
+### BREAKING CHANGES
+
+- Apps
+    - [Version] [\#6494](https://github.com/tendermint/tendermint/pull/6494) `TMCoreSemVer` is not required to be set as a ldflag any longer.
+
+### IMPROVEMENTS
+
+- [statesync] [\#6566](https://github.com/tendermint/tendermint/pull/6566) Allow state sync fetchers and request timeout to be configurable. (@alexanderbez)
+- [statesync] [\#6378](https://github.com/tendermint/tendermint/pull/6378) Retry requests for snapshots and add a minimum discovery time (5s) for new snapshots. (@tychoish)
+- [statesync] [\#6582](https://github.com/tendermint/tendermint/pull/6582) Increase chunk priority and add multiple retry chunk requests (@cmwaters)
+
+### BUG FIXES
+
+- [evidence] [\#6375](https://github.com/tendermint/tendermint/pull/6375) Fix bug with inconsistent LightClientAttackEvidence hashing (@cmwaters)
+
 ## v0.34.10
 
 *April 14, 2021*
 
-This release fixes a bug where peers would sometimes try to send messages 
+This release fixes a bug where peers would sometimes try to send messages
 on incorrect channels. Special thanks to our friends at Oasis Labs for surfacing
-this issue! 
-
-Friendly reminder: We have a [bug bounty program](https://hackerone.com/tendermint).
+this issue!
 
 - [p2p/node] [\#6339](https://github.com/tendermint/tendermint/issues/6339) Fix bug with using custom channels (@cmwaters)
 - [light] [\#6346](https://github.com/tendermint/tendermint/issues/6346) Correctly handle too high errors to improve client robustness (@cmwaters)
@@ -17,7 +60,7 @@ Friendly reminder: We have a [bug bounty program](https://hackerone.com/tendermi
 
 *April 8, 2021*
 
-This release fixes a moderate severity security issue, Security Advisory Alderfly, 
+This release fixes a moderate severity security issue, Security Advisory Alderfly,
 which impacts all networks that rely on Tendermint light clients.
 Further details will be released once networks have upgraded.
 
@@ -25,8 +68,6 @@ This release also includes a small Go API-breaking change, to reduce panics in t
 
 Special thanks to our external contributors on this release: @gchaincl
 
-Friendly reminder: We have a [bug bounty program](https://hackerone.com/tendermint).
-
 ### BREAKING CHANGES
 
 - Go API
@@ -49,8 +90,6 @@ Friendly reminder: We have a [bug bounty program](https://hackerone.com/tendermi
 This release, in conjunction with [a fix in the Cosmos SDK](https://github.com/cosmos/cosmos-sdk/pull/8641),
 introduces changes that should mean the logs are much, much quieter. 🎉
 
-Friendly reminder: We have a [bug bounty program](https://hackerone.com/tendermint).
-
 ### IMPROVEMENTS
 
 - [libs/log] [\#6174](https://github.com/tendermint/tendermint/issues/6174) Include timestamp (`ts` field; `time.RFC3339Nano` format) in JSON logger output (@melekes)
@@ -88,15 +127,13 @@ use remote signer implementations instead of `FilePV` in production.
 Thank you to @joe-bowman for his assistance with this vulnerability and a particular
 shout-out to @marbar3778 for diagnosing it quickly.
 
-Friendly reminder: We have a [bug bounty program](https://hackerone.com/tendermint).
-
 ### BUG FIXES
 
 - [consensus] [\#6128](https://github.com/tendermint/tendermint/pull/6128) Remove privValidator from log call (@tessr)
 
 ## v0.34.6
 
-*February 18, 2021* 
+*February 18, 2021*
 
 _Tendermint Core v0.34.5 and v0.34.6 have been recalled due to release tooling problems._
 
@@ -104,33 +141,29 @@ _Tendermint Core v0.34.5 and v0.34.6 have been recalled due to release tooling p
 
 *February 11, 2021*
 
-This release includes a fix for a memory leak in the evidence reactor (see #6068, below). 
-All Tendermint clients are recommended to upgrade. 
-Thank you to our friends at Crypto.com for the initial report of this memory leak! 
+This release includes a fix for a memory leak in the evidence reactor (see #6068, below).
+All Tendermint clients are recommended to upgrade.
+Thank you to our friends at Crypto.com for the initial report of this memory leak!
 
 Special thanks to other external contributors on this release: @yayajacky, @odidev, @laniehei, and @c29r3!
 
-Friendly reminder: We have a [bug bounty program](https://hackerone.com/tendermint).
-
 ### BUG FIXES
 
 - [light] [\#6022](https://github.com/tendermint/tendermint/pull/6022) Fix a bug when the number of validators equals 100 (@melekes)
 - [light] [\#6026](https://github.com/tendermint/tendermint/pull/6026) Fix a bug when height isn't provided for the rpc calls: `/commit` and `/validators` (@cmwaters)
 - [evidence] [\#6068](https://github.com/tendermint/tendermint/pull/6068) Terminate broadcastEvidenceRoutine when peer is stopped (@melekes)
 
-## v0.34.3 
+## v0.34.3
 
 *January 19, 2021*
 
-This release includes a fix for a high-severity security vulnerability, 
+This release includes a fix for a high-severity security vulnerability,
 a DoS-vector that impacted Tendermint Core v0.34.0-v0.34.2. For more details, see
-[Security Advisory Mulberry](https://github.com/tendermint/tendermint/security/advisories/GHSA-p658-8693-mhvg) 
-or https://nvd.nist.gov/vuln/detail/CVE-2021-21271. 
+[Security Advisory Mulberry](https://github.com/tendermint/tendermint/security/advisories/GHSA-p658-8693-mhvg)
+or https://nvd.nist.gov/vuln/detail/CVE-2021-21271.
 
 Tendermint Core v0.34.3 also updates GoGo Protobuf to 1.3.2 in order to pick up the fix for
-https://nvd.nist.gov/vuln/detail/CVE-2021-3121. 
-
-Friendly reminder: We have a [bug bounty program](https://hackerone.com/tendermint).
+https://nvd.nist.gov/vuln/detail/CVE-2021-3121.
 
 ### BUG FIXES
 
@@ -145,8 +178,6 @@ This release fixes a substantial bug in evidence handling where evidence could
 sometimes be broadcast before the block containing that evidence was fully committed,
 resulting in some nodes panicking when trying to verify said evidence.
 
-Friendly reminder, we have a [bug bounty program](https://hackerone.com/tendermint).
-
 ### BREAKING CHANGES
 
 - Go API
@@ -170,8 +201,6 @@ disconnecting from this node. As a temporary remedy (until the mempool package
 is refactored), the `max-batch-bytes` was disabled. Transactions will be sent
 one by one without batching.
 
-Friendly reminder, we have a [bug bounty program](https://hackerone.com/tendermint).
-
 ### BREAKING CHANGES
 
 - CLI/RPC/Config
@@ -200,8 +229,6 @@ Holy smokes, this is a big one! For a more reader-friendly overview of the chang
 Special thanks to external contributors on this release: @james-ray, @fedekunze, @favadi, @alessio,
 @joe-bowman, @cuonglm, @SadPencil and @dongsam.
 
-And as always, friendly reminder, that we have a [bug bounty program](https://hackerone.com/tendermint).
-
 ### BREAKING CHANGES
 
 - CLI/RPC/Config
@@ -228,14 +255,14 @@ And as always, friendly reminder, that we have a [bug bounty program](https://ha
   - [blockchain] [\#4637](https://github.com/tendermint/tendermint/pull/4637) Migrate blockchain reactor(s) to Protobuf encoding (@marbar3778)
   - [evidence] [\#4949](https://github.com/tendermint/tendermint/pull/4949) Migrate evidence reactor to Protobuf encoding (@marbar3778)
   - [mempool] [\#4940](https://github.com/tendermint/tendermint/pull/4940) Migrate mempool from to Protobuf encoding (@marbar3778)
-  - [mempool] [\#5321](https://github.com/tendermint/tendermint/pull/5321) Batch transactions when broadcasting them to peers (@melekes) 
+  - [mempool] [\#5321](https://github.com/tendermint/tendermint/pull/5321) Batch transactions when broadcasting them to peers (@melekes)
      - `MaxBatchBytes` new config setting defines the max size of one batch.
   - [p2p/pex] [\#4973](https://github.com/tendermint/tendermint/pull/4973) Migrate `p2p/pex` reactor to Protobuf encoding (@marbar3778)
   - [statesync] [\#4943](https://github.com/tendermint/tendermint/pull/4943) Migrate state sync reactor to Protobuf encoding (@marbar3778)
 
 - Blockchain Protocol
 
-  - [evidence] [\#4725](https://github.com/tendermint/tendermint/pull/4725) Remove `Pubkey` from `DuplicateVoteEvidence` (@marbar3778) 
+  - [evidence] [\#4725](https://github.com/tendermint/tendermint/pull/4725) Remove `Pubkey` from `DuplicateVoteEvidence` (@marbar3778)
   - [evidence] [\#5499](https://github.com/tendermint/tendermint/pull/5449) Cap evidence to a maximum number of bytes (supercedes [\#4780](https://github.com/tendermint/tendermint/pull/4780)) (@cmwaters)
   - [merkle] [\#5193](https://github.com/tendermint/tendermint/pull/5193) Header hashes are no longer empty for empty inputs, notably `DataHash`, `EvidenceHash`, and `LastResultsHash` (@erikgrinaker)
   - [state] [\#4845](https://github.com/tendermint/tendermint/pull/4845) Include `GasWanted` and `GasUsed` into `LastResultsHash` (@melekes)
@@ -294,7 +321,7 @@ And as always, friendly reminder, that we have a [bug bounty program](https://ha
   - [types] [\#4852](https://github.com/tendermint/tendermint/pull/4852) Vote & Proposal `SignBytes` is now func `VoteSignBytes` & `ProposalSignBytes` (@marbar3778)
   - [types] [\#4798](https://github.com/tendermint/tendermint/pull/4798) Simplify `VerifyCommitTrusting` func + remove extra validation (@melekes)
   - [types] [\#4845](https://github.com/tendermint/tendermint/pull/4845) Remove `ABCIResult` (@melekes)
-  - [types] [\#5029](https://github.com/tendermint/tendermint/pull/5029) Rename all values from `PartsHeader` to `PartSetHeader` to have consistency (@marbar3778) 
+  - [types] [\#5029](https://github.com/tendermint/tendermint/pull/5029) Rename all values from `PartsHeader` to `PartSetHeader` to have consistency (@marbar3778)
   - [types] [\#4939](https://github.com/tendermint/tendermint/pull/4939) `Total` in `Parts` & `PartSetHeader` has been changed from a `int` to a `uint32` (@marbar3778)
   - [types] [\#4939](https://github.com/tendermint/tendermint/pull/4939) Vote: `ValidatorIndex` & `Round` are now `int32` (@marbar3778)
   - [types] [\#4939](https://github.com/tendermint/tendermint/pull/4939) Proposal: `POLRound` & `Round` are now `int32` (@marbar3778)
@@ -332,7 +359,7 @@ And as always, friendly reminder, that we have a [bug bounty program](https://ha
 - [evidence] [\#4722](https://github.com/tendermint/tendermint/pull/4722) Consolidate evidence store and pool types to improve evidence DB (@cmwaters)
 - [evidence] [\#4839](https://github.com/tendermint/tendermint/pull/4839) Reject duplicate evidence from being proposed (@cmwaters)
 - [evidence] [\#5219](https://github.com/tendermint/tendermint/pull/5219) Change the source of evidence time to block time (@cmwaters)
-- [libs] [\#5126](https://github.com/tendermint/tendermint/pull/5126) Add a sync package which wraps sync.(RW)Mutex & deadlock.(RW)Mutex and use a build flag (deadlock) in order to enable deadlock checking (@marbar3778) 
+- [libs] [\#5126](https://github.com/tendermint/tendermint/pull/5126) Add a sync package which wraps sync.(RW)Mutex & deadlock.(RW)Mutex and use a build flag (deadlock) in order to enable deadlock checking (@marbar3778)
 - [light] [\#4935](https://github.com/tendermint/tendermint/pull/4935) Fetch and compare a new header with witnesses in parallel (@melekes)
 - [light] [\#4929](https://github.com/tendermint/tendermint/pull/4929) Compare header with witnesses only when doing bisection (@melekes)
 - [light] [\#4916](https://github.com/tendermint/tendermint/pull/4916) Validate basic for inbound validator sets and headers before further processing them (@cmwaters)
@@ -442,9 +469,6 @@ as 2/3+ of the signatures are checked._
 
 Special thanks to @njmurarka at Bluzelle Networks for reporting this.
 
-Friendly reminder, we have a [bug bounty
-program](https://hackerone.com/tendermint).
-
 ### SECURITY:
 
 - [consensus] Do not allow signatures for a wrong block in commits (@ebuchman)
@@ -460,8 +484,6 @@ need to update your code.**
 
 Special thanks to external contributors on this release: @tau3,
 
-Friendly reminder, we have a [bug bounty program](https://hackerone.com/tendermint).
-
 ### BREAKING CHANGES:
 
 - Go API
@@ -521,8 +543,6 @@ Friendly reminder, we have a [bug bounty program](https://hackerone.com/tendermi
 
 Special thanks to external contributors on this release: @whylee259, @greg-szabo
 
-Friendly reminder, we have a [bug bounty program](https://hackerone.com/tendermint).
-
 ### BREAKING CHANGES:
 
 - Go API
@@ -609,9 +629,6 @@ Notes:
 Special thanks to [fudongbai](https://hackerone.com/fudongbai) for finding
 and reporting this.
 
-Friendly reminder, we have a [bug bounty
-program](https://hackerone.com/tendermint).
-
 ### SECURITY:
 
 - [mempool] Reserve IDs in InitPeer instead of AddPeer (@tessr)
@@ -624,8 +641,6 @@ program](https://hackerone.com/tendermint).
 Special thanks to external contributors on this release:
 @antho1404, @michaelfig, @gterzian, @tau3, @Shivani912
 
-Friendly reminder, we have a [bug bounty program](https://hackerone.com/tendermint).
-
 ### BREAKING CHANGES:
 
 - CLI/RPC/Config
@@ -676,9 +691,6 @@ Friendly reminder, we have a [bug bounty program](https://hackerone.com/tendermi
 Special thanks to external contributors on this release:
 @princesinha19
 
-Friendly reminder, we have a [bug bounty
-program](https://hackerone.com/tendermint).
-
 ### FEATURES:
 
 - [rpc] [\#3333](https://github.com/tendermint/tendermint/issues/3333) Add `order_by` to `/tx_search` endpoint, allowing to change default ordering from asc to desc (@princesinha19)
@@ -697,9 +709,6 @@ program](https://hackerone.com/tendermint).
 
 Special thanks to external contributors on this release: @mrekucci, @PSalant726, @princesinha19, @greg-szabo, @dongsam, @cuonglm, @jgimeno, @yenkhoon
 
-Friendly reminder, we have a [bug bounty
-program.](https://hackerone.com/tendermint).
-
 *January 14, 2020*
 
 This release contains breaking changes to the `Block#Header`, specifically
@@ -928,9 +937,6 @@ Notes:
 Special thanks to [fudongbai](https://hackerone.com/fudongbai) for finding
 and reporting this.
 
-Friendly reminder, we have a [bug bounty
-program](https://hackerone.com/tendermint).
-
 ### SECURITY:
 
 - [mempool] Reserve IDs in InitPeer instead of AddPeer (@tessr)
@@ -942,9 +948,6 @@ _January, 9, 2020_
 
 Special thanks to external contributors on this release: @greg-szabo, @gregzaitsev, @yenkhoon
 
-Friendly reminder, we have a [bug bounty
-program](https://hackerone.com/tendermint).
-
 ### FEATURES:
 
 - [rpc/lib] [\#4248](https://github.com/tendermint/tendermint/issues/4248) RPC client basic authentication support (@greg-szabo)
@@ -966,9 +969,6 @@ program](https://hackerone.com/tendermint).
 
 Special thanks to external contributors on this release: @erikgrinaker, @guagualvcha, @hsyis, @cosmostuba, @whunmr, @austinabell
 
-Friendly reminder, we have a [bug bounty
-program.](https://hackerone.com/tendermint).
-
 
 ### BREAKING CHANGES:
 
@@ -1008,9 +1008,6 @@ identified and fixed here.
 Special thanks to [elvishacker](https://hackerone.com/elvishacker) for finding
 and reporting this.
 
-Friendly reminder, we have a [bug bounty
-program](https://hackerone.com/tendermint).
-
 ### BREAKING CHANGES:
 
 - Go API
@@ -1037,9 +1034,6 @@ accepting new peers and only allowing `ed25519` pubkeys.
 Special thanks to [fudongbai](https://hackerone.com/fudongbai) for pointing
 this out.
 
-Friendly reminder, we have a [bug bounty
-program](https://hackerone.com/tendermint).
-
 ### SECURITY:
 
 - [p2p] [\#4030](https://github.com/tendermint/tendermint/issues/4030) Only allow ed25519 pubkeys when connecting
@@ -1055,9 +1049,6 @@ All clients are recommended to upgrade. See
 Special thanks to [fudongbai](https://hackerone.com/fudongbai) for discovering
 and reporting this issue.
 
-Friendly reminder, we have a [bug bounty
-program](https://hackerone.com/tendermint).
-
 ### SECURITY:
 
 - [p2p] [\#4030](https://github.com/tendermint/tendermint/issues/4030) Fix for panic on nil public key send to a peer
@@ -1068,9 +1059,6 @@ program](https://hackerone.com/tendermint).
 
 Special thanks to external contributors on this release: @jon-certik, @gracenoah, @PSalant726, @gchaincl
 
-Friendly reminder, we have a [bug bounty
-program](https://hackerone.com/tendermint).
-
 ### BREAKING CHANGES:
 
 - CLI/RPC/Config
@@ -1106,9 +1094,6 @@ guide.
 Special thanks to external contributors on this release:
 @gchaincl, @bluele, @climber73
 
-Friendly reminder, we have a [bug bounty
-program](https://hackerone.com/tendermint).
-
 ### IMPROVEMENTS:
 
 - [consensus] [\#3839](https://github.com/tendermint/tendermint/issues/3839) Reduce "Error attempting to add vote" message severity (Error -> Info)
@@ -1129,9 +1114,6 @@ program](https://hackerone.com/tendermint).
 Special thanks to external contributors on this release:
 @ruseinov, @bluele, @guagualvcha
 
-Friendly reminder, we have a [bug bounty
-program](https://hackerone.com/tendermint).
-
 ### BREAKING CHANGES:
 
 - Go API
@@ -1171,9 +1153,6 @@ This release contains a minor enhancement to the ABCI and some breaking changes
 - CheckTx requests include a `CheckTxType` enum that can be set to `Recheck` to indicate to the application that this transaction was already checked/validated and certain expensive operations (like checking signatures) can be skipped
 - Removed various functions from `libs` pkgs
 
-Friendly reminder, we have a [bug bounty
-program](https://hackerone.com/tendermint).
-
 ### BREAKING CHANGES:
 
 - Go API
@@ -1219,9 +1198,6 @@ and the RPC, namely:
   [docs](https://github.com/tendermint/tendermint/blob/60827f75623b92eff132dc0eff5b49d2025c591e/docs/spec/abci/abci.md#events)
 - Bind RPC to localhost by default, not to the public interface [UPGRADING/RPC_Changes](./UPGRADING.md#rpc_changes)
 
-Friendly reminder, we have a [bug bounty
-program](https://hackerone.com/tendermint).
-
 ### BREAKING CHANGES:
 
 * CLI/RPC/Config
@@ -1322,8 +1298,6 @@ Notes:
 Special thanks to [fudongbai](https://hackerone.com/fudongbai) for finding
 and reporting this.
 
-Friendly reminder, we have a [bug bounty
-program](https://hackerone.com/tendermint).
 
 ### SECURITY:
 
@@ -1344,8 +1318,6 @@ identified and fixed here.
 Special thanks to [elvishacker](https://hackerone.com/elvishacker) for finding
 and reporting this.
 
-Friendly reminder, we have a [bug bounty
-program](https://hackerone.com/tendermint).
 
 ### BREAKING CHANGES:
 
@@ -1373,8 +1345,6 @@ accepting new peers and only allowing `ed25519` pubkeys.
 Special thanks to [fudongbai](https://hackerone.com/fudongbai) for pointing
 this out.
 
-Friendly reminder, we have a [bug bounty
-program](https://hackerone.com/tendermint).
 
 ### SECURITY:
 
@@ -1391,8 +1361,6 @@ All clients are recommended to upgrade. See
 Special thanks to [fudongbai](https://hackerone.com/fudongbai) for discovering
 and reporting this issue.
 
-Friendly reminder, we have a [bug bounty
-program](https://hackerone.com/tendermint).
 
 ### SECURITY:
 
@@ -1688,8 +1656,6 @@ See the [v0.31.0
 Milestone](https://github.com/tendermint/tendermint/milestone/19?closed=1) for
 more details.
 
-Friendly reminder, we have a [bug bounty
-program](https://hackerone.com/tendermint).
 
 ### BREAKING CHANGES:
 
@@ -1910,8 +1876,6 @@ This release contains two important fixes: one for p2p layer where we sometimes
 were not closing connections and one for consensus layer where consensus with
 no empty blocks (`create_empty_blocks = false`) could halt.
 
-Friendly reminder, we have a [bug bounty
-program](https://hackerone.com/tendermint).
 
 ### IMPROVEMENTS:
 - [pex] [\#3037](https://github.com/tendermint/tendermint/issues/3037) Only log "Reached max attempts to dial" once
@@ -1951,8 +1915,6 @@ While we are trying to stabilize the Block protocol to preserve compatibility
 with old chains, there may be some final changes yet to come before Cosmos
 launch as we continue to audit and test the software.
 
-Friendly reminder, we have a [bug bounty
-program](https://hackerone.com/tendermint).
 
 ### BREAKING CHANGES:
 
@@ -2001,8 +1963,6 @@ program](https://hackerone.com/tendermint).
 Special thanks to external contributors on this release:
 @HaoyangLiu
 
-Friendly reminder, we have a [bug bounty
-program](https://hackerone.com/tendermint).
 
 ### BUG FIXES:
 - [consensus] Fix consensus halt from proposing blocks with too much evidence
@@ -2131,8 +2091,6 @@ Special thanks to @dlguddus for discovering a [major
 issue](https://github.com/tendermint/tendermint/issues/2718#issuecomment-440888677)
 in the proposer selection algorithm.
 
-Friendly reminder, we have a [bug bounty
-program](https://hackerone.com/tendermint).
 
 This release is primarily about fixes to the proposer selection algorithm
 in preparation for the [Cosmos Game of
@@ -2195,8 +2153,6 @@ Special thanks to external contributors on this release:
 @ackratos, @goolAdapter, @james-ray, @joe-bowman, @kostko,
 @nagarajmanjunath, @tomtau
 
-Friendly reminder, we have a [bug bounty
-program](https://hackerone.com/tendermint).
 
 ### FEATURES:
 
@@ -2236,8 +2192,6 @@ program](https://hackerone.com/tendermint).
 Special thanks to external contributors on this release:
 @danil-lashin, @kevlubkcm, @krhubert, @srmo
 
-Friendly reminder, we have a [bug bounty
-program](https://hackerone.com/tendermint).
 
 ### BREAKING CHANGES:
 
@@ -2282,8 +2236,6 @@ program](https://hackerone.com/tendermint).
 
 Special thanks to external contributors on this release: @hleb-albau, @zhuzeyu
 
-Friendly reminder, we have a [bug bounty program](https://hackerone.com/tendermint).
-
 ### FEATURES:
 
 - [rpc] [\#2582](https://github.com/tendermint/tendermint/issues/2582) Enable CORS on RPC API (@hleb-albau)
@@ -2301,8 +2253,6 @@ Friendly reminder, we have a [bug bounty program](https://hackerone.com/tendermi
 
 Special thanks to external contributors on this release: @katakonst
 
-Friendly reminder, we have a [bug bounty program](https://hackerone.com/tendermint).
-
 ### IMPROVEMENTS:
 
 - [consensus] [\#2704](https://github.com/tendermint/tendermint/issues/2704) Simplify valid POL round logic
@@ -2476,8 +2426,6 @@ It also addresses some issues found via security audit, removes various unused
 functions from `libs/common`, and implements
 [ADR-012](https://github.com/tendermint/tendermint/blob/develop/docs/architecture/adr-012-peer-transport.md).
 
-Friendly reminder, we have a [bug bounty program](https://hackerone.com/tendermint).
-
 BREAKING CHANGES:
 
 * CLI/RPC/Config

CHANGELOG_PENDING.md

@@ -9,6 +9,7 @@ Friendly reminder: We have a [bug bounty program](https://hackerone.com/tendermi
 ### BREAKING CHANGES
 
 - CLI/RPC/Config
+  - [pubsub/events] \#6634 The `ResultEvent.Events` field is now of type `[]abci.Event` preserving event order instead of `map[string][]string`. (@alexanderbez)
   - [config] \#5598 The `test_fuzz` and `test_fuzz_config` P2P settings have been removed. (@erikgrinaker)
   - [config] \#5728 `fast_sync = "v1"` is no longer supported (@melekes)
   - [cli] \#5772 `gen_node_key` prints JSON-encoded `NodeKey` rather than ID and does not save it to `node_key.json` (@melekes)
@@ -17,22 +18,39 @@ Friendly reminder: We have a [bug bounty program](https://hackerone.com/tendermi
   - [rpc] \#6168 Change default sorting to desc for `/tx_search` results (@melekes)
   - [cli] \#6282 User must specify the node mode when using `tendermint init` (@cmwaters)
   - [state/indexer] \#6382 reconstruct indexer, move txindex into the indexer package (@JayT106)
-  - [cli] \#6372 Introduce `BootstrapPeers` as part of the new p2p stack. Peers to be connected on
-    startup (@cmwaters)
+  - [cli] \#6372 Introduce `BootstrapPeers` as part of the new p2p stack. Peers to be connected on  startup (@cmwaters)
+  - [config] \#6462 Move `PrivValidator` configuration out of `BaseConfig` into its own section. (@tychoish)
+  - [rpc] \#6610 Add MaxPeerBlockHeight into /status rpc call (@JayT106)
+  - [fastsync/rpc] \#6620 Add TotalSyncedTime & RemainingTime to SyncInfo in /status RPC  (@JayT106)
+  - [rpc/grpc] \#6725 Mark gRPC in the RPC layer as deprecated.
+  - [blockchain/v2] \#6730 Fast Sync v2 is deprecated, please use v0
+  - [rpc] \#6820 Update RPC methods to reflect changes in the p2p layer, disabling support for `UnsafeDialPeers` and `UnsafeDialPeers` when used with the new p2p layer, and changing the response format of the peer list in `NetInfo` for all users.
 
 - Apps
   - [ABCI] \#6408 Change the `key` and `value` fields from `[]byte` to `string` in the `EventAttribute` type. (@alexanderbez)
   - [ABCI] \#5447 Remove `SetOption` method from `ABCI.Client` interface
   - [ABCI] \#5447 Reset `Oneof` indexes for  `Request` and `Response`.
   - [ABCI] \#5818 Use protoio for msg length delimitation. Migrates from int64 to uint64 length delimiters.
+  - [ABCI] \#3546 Add `mempool_error` field to `ResponseCheckTx`. This field will contain an error string if Tendermint encountered an error while adding a transaction to the mempool. (@williambanfield)
+  - [Version] \#6494 `TMCoreSemVer` has been renamed to `TMVersion`.
+	- It is not required any longer to set ldflags to set version strings
+  - [abci/counter] \#6684 Delete counter example app
 
 - P2P Protocol
 
 - Go API
+  - [pubsub] \#6634 The `Query#Matches` method along with other pubsub methods, now accepts a `[]abci.Event` instead of `map[string][]string`. (@alexanderbez)
+  - [p2p] \#6618 Move `p2p.NodeInfo` into `types` to support use of the SDK. (@tychoish)
+  - [p2p] \#6583 Make `p2p.NodeID` and `p2p.NetAddress` exported types to support their use in the RPC layer. (@tychoish)
+  - [node] \#6540 Reduce surface area of the `node` package by making most of the implementation details private. (@tychoish)
+  - [p2p] \#6547 Move the entire `p2p` package and all reactor implementations into `internal`.  (@tychoish)
+  - [libs/log] \#6534 Remove the existing custom Tendermint logger backed by go-kit. The logging interface, `Logger`, remains. Tendermint still provides a default logger backed by the performant zerolog logger. (@alexanderbez)
+  - [libs/time] \#6495 Move types/time to libs/time to improve consistency. (@tychoish)
+  - [mempool] \#6529 The `Context` field has been removed from the `TxInfo` type. `CheckTx` now requires a `Context` argument. (@alexanderbez)
   - [abci/client, proxy] \#5673 `Async` funcs return an error, `Sync` and `Async` funcs accept `context.Context` (@melekes)
-  - [p2p] Removed unused function `MakePoWTarget`. (@erikgrinaker)
+  - [p2p] Remove unused function `MakePoWTarget`. (@erikgrinaker)
   - [libs/bits] \#5720 Validate `BitArray` in `FromProto`, which now returns an error (@melekes)
-  - [proto/p2p] Renamed `DefaultNodeInfo` and `DefaultNodeInfoOther` to `NodeInfo` and `NodeInfoOther` (@erikgrinaker)
+  - [proto/p2p] Rename `DefaultNodeInfo` and `DefaultNodeInfoOther` to `NodeInfo` and `NodeInfoOther` (@erikgrinaker)
   - [proto/p2p] Rename `NodeInfo.default_node_id` to `node_id` (@erikgrinaker)
   - [libs/os] Kill() and {Must,}{Read,Write}File() functions have been removed. (@alessio)
   - [store] \#5848 Remove block store state in favor of using the db iterators directly (@cmwaters)
@@ -47,13 +65,27 @@ Friendly reminder: We have a [bug bounty program](https://hackerone.com/tendermi
   - [rpc/client/http] \#6176 Remove `endpoint` arg from `New`, `NewWithTimeout` and `NewWithClient` (@melekes)
   - [rpc/client/http] \#6176 Unexpose `WSEvents` (@melekes)
   - [rpc/jsonrpc/client/ws_client] \#6176 `NewWS` no longer accepts options (use `NewWSWithOptions` and `OnReconnect` funcs to configure the client) (@melekes)
-  - [libs/rand] \#6364 Removed most of libs/rand in favour of standard lib's `math/rand` (@liamsi)
+  - [internal/libs] \#6366 Move `autofile`, `clist`,`fail`,`flowrate`, `protoio`, `sync`, `tempfile`, `test` and `timer` lib packages to an internal folder
+  - [libs/rand] \#6364 Remove most of libs/rand in favour of standard lib's `math/rand` (@liamsi)
+  - [mempool] \#6466 The original mempool reactor has been versioned as `v0` and moved to a sub-package under the root `mempool` package.
+	Some core types have been kept in the `mempool` package such as `TxCache` and it's implementations, the `Mempool` interface itself
+	and `TxInfo`. (@alexanderbez)
+  - [crypto/sr25519] \#6526 Do not re-execute the Ed25519-style key derivation step when doing signing and verification.  The derivation is now done once and only once.  This breaks `sr25519.GenPrivKeyFromSecret` output compatibility. (@Yawning)
+  - [types] \#6627 Move `NodeKey` to types to make the type public.
+  - [config] \#6627 Extend `config` to contain methods `LoadNodeKeyID` and `LoadorGenNodeKeyID`
+  - [blocksync] \#6755 Rename `FastSync` and `Blockchain` package to `BlockSync`
+	(@cmwaters)
 
 - Blockchain Protocol
 
 - Data Storage
   - [store/state/evidence/light] \#5771 Use an order-preserving varint key encoding (@cmwaters)
   - [mempool] \#6396 Remove mempool's write ahead log (WAL), (previously unused by the tendermint code). (@tychoish)
+  - [state] \#6541 Move pruneBlocks from consensus/state to state/execution. (@JayT106)
+
+- Tooling
+  - [tools] \#6498 Set OS home dir to instead of the hardcoded PATH. (@JayT106)
+  - [cli/indexer] \#6676 Reindex events command line tooling. (@JayT106)
 
 ### FEATURES
 
@@ -63,10 +95,25 @@ Friendly reminder: We have a [bug bounty program](https://hackerone.com/tendermi
   accomodate for the new p2p stack. Removes the notion of seeds and crawling. All peer
   exchange reactors behave the same. (@cmwaters)
 - [crypto] \#6376 Enable sr25519 as a validator key
+- [mempool] \#6466 Introduction of a prioritized mempool. (@alexanderbez)
+  - `Priority` and `Sender` have been introduced into the `ResponseCheckTx` type, where the `priority` will determine the prioritization of
+  the transaction when a proposer reaps transactions for a block proposal. The `sender` field acts as an index.
+  - Operators may toggle between the legacy mempool reactor, `v0`, and the new prioritized reactor, `v1`, by setting the
+  `mempool.version` configuration, where `v1` is the default configuration.
+  - Applications that do not specify a priority, i.e. zero, will have transactions reaped by the order in which they are received by the node.
+  - Transactions are gossiped in FIFO order as they are in `v0`.
+- [config/indexer] \#6411 Introduce support for custom event indexing data sources, specifically PostgreSQL. (@JayT106)
+- [fastsync/event] \#6619 Emit fastsync status event when switching consensus/fastsync (@JayT106)
+- [statesync/event] \#6700 Emit statesync status start/end event (@JayT106)
 
 ### IMPROVEMENTS
 
+- [libs/log] Console log formatting changes as a result of \#6534 and \#6589. (@tychoish)
+- [statesync] \#6566 Allow state sync fetchers and request timeout to be configurable. (@alexanderbez)
+- [types] \#6478 Add `block_id` to `newblock` event (@jeebster)
 - [crypto/ed25519] \#5632 Adopt zip215 `ed25519` verification. (@marbar3778)
+- [crypto/ed25519] \#6526 Use [curve25519-voi](https://github.com/oasisprotocol/curve25519-voi) for `ed25519` signing and verification. (@Yawning)
+- [crypto/sr25519] \#6526 Use [curve25519-voi](https://github.com/oasisprotocol/curve25519-voi) for `sr25519` signing and verification. (@Yawning)
 - [privval] \#5603 Add `--key` to `init`, `gen_validator`, `testnet` & `unsafe_reset_priv_validator` for use in generating `secp256k1` keys.
 - [privval] \#5725 Add gRPC support to private validator.
 - [privval] \#5876 `tendermint show-validator` will query the remote signer if gRPC is being used (@marbar3778)
@@ -94,11 +141,21 @@ Friendly reminder: We have a [bug bounty program](https://hackerone.com/tendermi
 - [statesync] \#6378 Retry requests for snapshots and add a minimum discovery time (5s) for new snapshots.
 - [node/state] \#6370 graceful shutdown in the consensus reactor (@JayT106)
 - [crypto/merkle] \#6443 Improve HashAlternatives performance (@cuonglm)
+- [crypto/merkle] \#6513 Optimize HashAlternatives (@marbar3778)
+- [p2p/pex] \#6509 Improve addrBook.hash performance (@cuonglm)
+- [consensus/metrics] \#6549 Change block_size gauge to a histogram for better observability over time (@marbar3778)
+- [statesync] \#6587 Increase chunk priority and re-request chunks that don't arrive (@cmwaters)
+- [state/privval] \#6578 No GetPubKey retry beyond the proposal/voting window (@JayT106)
+- [rpc] \#6615 Add TotalGasUsed to block_results response (@crypto-facs)
+- [cmd/tendermint/commands] \#6623 replace `$HOME/.some/test/dir` with `t.TempDir` (@tanyabouman)
 
 ### BUG FIXES
 
-- [types] \#5523 Change json naming of `PartSetHeader` within `BlockID` from `parts` to `part_set_header` (@marbar3778)
 - [privval] \#5638 Increase read/write timeout to 5s and calculate ping interval based on it (@JoeKash)
 - [blockchain/v1] [\#5701](https://github.com/tendermint/tendermint/pull/5701) Handle peers without blocks (@melekes)
 - [blockchain/v1] \#5711 Fix deadlock (@melekes)
 - [evidence] \#6375 Fix bug with inconsistent LightClientAttackEvidence hashing (cmwaters)
+- [rpc] \#6507 Ensure RPC client can handle URLs without ports (@JayT106)
+- [statesync] \#6463 Adds Reverse Sync feature to fetch historical light blocks after state sync in order to verify any evidence (@cmwaters)
+- [fastsync] \#6590 Update the metrics during fast-sync (@JayT106)
+- [gitignore] \#6668 Fix gitignore of abci-cli (@tanyabouman)

CONTRIBUTING.md

@@ -227,16 +227,96 @@ Fixes #nnnn
 
 Each PR should have one commit once it lands on `master`; this can be accomplished by using the "squash and merge" button on Github. Be sure to edit your commit message, though!
 
-### Release Procedure
+### Release procedure
 
-#### Major Release
+#### A note about backport branches
+Tendermint's `master` branch is under active development.
+Releases are specified using tags and are built from long-lived "backport" branches.
+Each release "line" (e.g. 0.34 or 0.33) has its own long-lived backport branch,
+and the backport branches have names like `v0.34.x` or `v0.33.x`
+(literally, `x`; it is not a placeholder in this case).
+
+As non-breaking changes land on `master`, they should also be backported (cherry-picked)
+to these backport branches.
+
+We use Mergify's [backport feature](https://mergify.io/features/backports) to automatically backport
+to the needed branch. There should be a label for any backport branch that you'll be targeting.
+To notify the bot to backport a pull request, mark the pull request with
+the label `S:backport-to-<backport_branch>`.
+Once the original pull request is merged, the bot will try to cherry-pick the pull request
+to the backport branch. If the bot fails to backport, it will open a pull request.
+The author of the original pull request is responsible for solving the conflicts and
+merging the pull request.
+
+#### Creating a backport branch
+If this is the first release candidate for a major release, you get to have the honor of creating
+the backport branch!
+
+Note that, after creating the backport branch, you'll also need to update the tags on `master`
+so that `go mod` is able to order the branches correctly. You should tag `master` with a "dev" tag
+that is "greater than" the backport branches tags. See #6072 for more context.
+
+In the following example, we'll assume that we're making a backport branch for
+the 0.35.x line.
+
+1. Start on `master`
+2. Create the backport branch:
+   `git checkout -b v0.35.x`
+3. Go back to master and tag it as the dev branch for the _next_ major release and push it back up:
+   `git tag -a v0.36.0-dev; git push v0.36.0-dev`
+4. Create a new workflow to run the e2e nightlies for this backport branch.
+   (See https://github.com/tendermint/tendermint/blob/master/.github/workflows/e2e-nightly-34x.yml
+   for an example.)
+
+#### Release candidates
+
+Before creating an official release, especially a major release, we may want to create a
+release candidate (RC) for our friends and partners to test out. We use git tags to
+create RCs, and we build them off of backport branches.
+
+Tags for RCs should follow the "standard" release naming conventions, with `-rcX` at the end
+(for example, `v0.35.0-rc0`).
+
+(Note that branches and tags _cannot_ have the same names, so it's important that these branches
+have distinct names from the tags/release names.)
+
+If this is the first RC for a major release, you'll have to make a new backport branch (see above).
+Otherwise:
+
+1. Start from the backport branch (e.g. `v0.35.x`).
+1. Run the integration tests and the e2e nightlies
+   (which can be triggered from the Github UI;
+   e.g., https://github.com/tendermint/tendermint/actions/workflows/e2e-nightly-34x.yml).
+1. Prepare the changelog:
+   - Move the changes included in `CHANGELOG_PENDING.md` into `CHANGELOG.md`.
+   - Run `python ./scripts/linkify_changelog.py CHANGELOG.md` to add links for
+     all PRs
+   - Ensure that UPGRADING.md is up-to-date and includes notes on any breaking changes
+      or other upgrading flows.
+   - Bump TMVersionDefault version in  `version.go`
+   - Bump P2P and block protocol versions in  `version.go`, if necessary
+   - Bump ABCI protocol version in `version.go`, if necessary
+1. Open a PR with these changes against the backport branch.
+1. Once these changes have landed on the backport branch, be sure to pull them back down locally.
+2. Once you have the changes locally, create the new tag, specifying a name and a tag "message":
+   `git tag -a v0.35.0-rc0 -m "Release Candidate v0.35.0-rc0`
+3. Push the tag back up to origin:
+   `git push origin v0.35.0-rc0`
+   Now the tag should be available on the repo's releases page.
+4. Future RCs will continue to be built off of this branch.
+
+Note that this process should only be used for "true" RCs--
+release candidates that, if successful, will be the next release.
+For more experimental "RCs," create a new, short-lived branch and tag that instead.
+
+#### Major release
 
 This major release process assumes that this release was preceded by release candidates.
-If there were no release candidates, and you'd like to cut a major release directly from master, see below.
+If there were no release candidates, begin by creating a backport branch, as described above.
 
-1. Start on the latest RC branch (`RCx/vX.X.0`).
-2. Run integration tests.
-3. Branch off of the RC branch (`git checkout -b release-prep`) and prepare the release:
+1. Start on the backport branch (e.g. `v0.35.x`)
+2. Run integration tests and the e2e nightlies.
+3. Prepare the release:
    - "Squash" changes from the changelog entries for the RCs into a single entry,
       and add all changes included in `CHANGELOG_PENDING.md`.
       (Squashing includes both combining all entries, as well as removing or simplifying
@@ -245,59 +325,28 @@ If there were no release candidates, and you'd like to cut a major release direc
      all PRs
    - Ensure that UPGRADING.md is up-to-date and includes notes on any breaking changes
       or other upgrading flows.
+   - Bump TMVersionDefault version in  `version.go`
    - Bump P2P and block protocol versions in  `version.go`, if necessary
    - Bump ABCI protocol version in `version.go`, if necessary
    - Add any release notes you would like to be added to the body of the release to `release_notes.md`.
-4. Open a PR with these changes against the RC branch (`RCx/vX.X.0`).
-5. Once these changes are on the RC branch, branch off of the RC branch again to create a release branch:
-   - `git checkout RCx/vX.X.0`
-   - `git checkout -b release/vX.X.0`
-6. Push a tag with prepared release details. This will trigger the actual release `vX.X.0`.
-   - `git tag -a vX.X.0 -m 'Release vX.X.0'`
-   - `git push origin vX.X.0`
+4. Open a PR with these changes against the backport branch.
+5. Once these changes are on the backport branch, push a tag with prepared release details.
+   This will trigger the actual release `v0.35.0`.
+   - `git tag -a v0.35.0 -m 'Release v0.35.0'`
+   - `git push origin v0.35.0`
 7. Make sure that `master` is updated with the latest `CHANGELOG.md`, `CHANGELOG_PENDING.md`, and `UPGRADING.md`.
-8. Create the long-lived minor release branch `RC0/vX.X.1` for the next point release on this
-   new major release series.
 
-##### Major Release (from `master`)
-
-1. Start on `master`
-2. Run integration tests (see `test_integrations` in Makefile)
-3. Prepare release in a pull request against `master` (to be squash merged):
-   - Copy `CHANGELOG_PENDING.md` to top of `CHANGELOG.md`; if this release
-      had release candidates, squash all the RC updates into one
-   - Run `python ./scripts/linkify_changelog.py CHANGELOG.md` to add links for
-     all issues
-   - Run `bash ./scripts/authors.sh` to get a list of authors since the latest
-     release, and add the github aliases of external contributors to the top of
-     the changelog. To lookup an alias from an email, try `bash ./scripts/authors.sh <email>`
-   - Reset the `CHANGELOG_PENDING.md`
-   - Bump P2P and block protocol versions in  `version.go`, if necessary
-   - Bump ABCI protocol version in `version.go`, if necessary
-   - Make sure all significant breaking changes are covered in `UPGRADING.md`
-   - Add any release notes you would like to be added to the body of the release to `release_notes.md`.
-4. Push a tag with prepared release details (this will trigger the release `vX.X.0`)
-   - `git tag -a vX.X.x -m 'Release vX.X.x'`
-   - `git push origin vX.X.x`
-5. Update the `CHANGELOG.md` file on master with the releases changelog.
-6. Delete any RC branches and tags for this release (if applicable)
-
-#### Minor Release (Point Releases)
+#### Minor release (point releases)
 
 Minor releases are done differently from major releases: They are built off of long-lived backport branches, rather than from master.
-Each release "line" (e.g. 0.34 or 0.33) has its own long-lived backport branch, and
-the backport branches have names like `v0.34.x` or `v0.33.x` (literally, `x`; it is not a placeholder in this case).
-
 As non-breaking changes land on `master`, they should also be backported (cherry-picked) to these backport branches.
 
-We use Mergify's [backport feature](https://mergify.io/features/backports) to automatically backport to the needed branch. Depending on which backport branch you need to backport to there will be labels for them. To notify the bot to backport a pull request, mark the pull request with the label `backport-to-<backport_branch>`. Once the original pull request is merged, the bot will try to cherry-pick the pull request to the backport branch. If the bot fails to backport, it will open a pull request. The author of the original pull request is responsible for solving the conflicts and merging the pull request.
-
 Minor releases don't have release candidates by default, although any tricky changes may merit a release candidate.
 
 To create a minor release:
 
-1. Checkout the long-lived backport branch: `git checkout vX.X.x`
-2. Run integration tests: `make test_integrations`
+1. Checkout the long-lived backport branch: `git checkout v0.35.x`
+2. Run integration tests (`make test_integrations`) and the nightlies.
 3. Check out a new branch and prepare the release:
    - Copy `CHANGELOG_PENDING.md` to top of `CHANGELOG.md`
    - Run `python ./scripts/linkify_changelog.py CHANGELOG.md` to add links for all issues
@@ -307,34 +356,14 @@ To create a minor release:
      (Note that ABCI follows semver, and that ABCI versions are the only versions
      which can change during minor releases, and only field additions are valid minor changes.)
    - Add any release notes you would like to be added to the body of the release to `release_notes.md`.
-4. Open a PR with these changes that will land them back on `vX.X.x`
+4. Open a PR with these changes that will land them back on `v0.35.x`
 5. Once this change has landed on the backport branch, make sure to pull it locally, then push a tag.
-   - `git tag -a vX.X.x -m 'Release vX.X.x'`
-   - `git push origin vX.X.x`
+   - `git tag -a v0.35.1 -m 'Release v0.35.1'`
+   - `git push origin v0.35.1`
 6. Create a pull request back to master with the CHANGELOG & version changes from the latest release.
    - Remove all `R:minor` labels from the pull requests that were included in the release.
    - Do not merge the backport branch into master.
 
-#### Release Candidates
-
-Before creating an official release, especially a major release, we may want to create a
-release candidate (RC) for our friends and partners to test out. We use git tags to
-create RCs, and we build them off of RC branches. RC branches typically have names formatted
-like `RCX/vX.X.X` (or, concretely, `RC0/v0.34.0`), while the tags themselves follow
-the "standard" release naming conventions, with `-rcX` at the end (`vX.X.X-rcX`).
-
-(Note that branches and tags _cannot_ have the same names, so it's important that these branches
-have distinct names from the tags/release names.)
-
-1. Start from the RC branch (e.g. `RC0/v0.34.0`).
-2. Create the new tag, specifying a name and a tag "message":
-   `git tag -a v0.34.0-rc0 -m "Release Candidate v0.34.0-rc0`
-3. Push the tag back up to origin:
-   `git push origin v0.34.0-rc4`
-   Now the tag should be available on the repo's releases page.
-4. Create a new release candidate branch for any possible updates to the RC:
-   `git checkout -b RC1/v0.34.0; git push origin RC1/v0.34.0`
-
 ## Testing
 
 ### Unit tests

DOCKER/Dockerfile

@@ -1,5 +1,5 @@
 # stage 1 Generate Tendermint Binary
-FROM golang:1.15-alpine as builder
+FROM golang:1.16-alpine as builder
 RUN apk update && \
     apk upgrade && \
     apk --no-cache add make

DOCKER/Dockerfile.build_c-amazonlinux

@@ -9,7 +9,7 @@ RUN wget http://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm &
 RUN yum -y groupinstall "Development Tools"
 RUN yum -y install leveldb-devel which
 
-ENV GOVERSION=1.12.9
+ENV GOVERSION=1.16.5
 
 RUN cd /tmp && \
     wget https://dl.google.com/go/go${GOVERSION}.linux-amd64.tar.gz && \

Makefile

@@ -12,7 +12,7 @@ else
 VERSION := $(shell git describe)
 endif
 
-LD_FLAGS = -X github.com/tendermint/tendermint/version.TMCoreSemVer=$(VERSION)
+LD_FLAGS = -X github.com/tendermint/tendermint/version.TMVersion=$(VERSION)
 BUILD_FLAGS = -mod=readonly -ldflags "$(LD_FLAGS)"
 HTTPS_GIT := https://github.com/tendermint/tendermint.git
 DOCKER_BUF := docker run -v $(shell pwd):/workspace --workdir /workspace bufbuild/buf
@@ -202,7 +202,7 @@ format:
 
 lint:
 	@echo "--> Running linter"
-	@golangci-lint run
+	go run github.com/golangci/golangci-lint/cmd/golangci-lint run
 .PHONY: lint
 
 DESTINATION = ./index.html.md
@@ -231,6 +231,15 @@ build-docker: build-linux
 	rm -rf DOCKER/tendermint
 .PHONY: build-docker
 
+
+###############################################################################
+###                       Mocks 											###
+###############################################################################
+
+mockery:
+	go generate -run="./scripts/mockery_generate.sh" ./...
+.PHONY: mockery
+
 ###############################################################################
 ###                       Local testnet using docker                        ###
 ###############################################################################

README.md

@@ -8,7 +8,7 @@ Or [Blockchain](<https://en.wikipedia.org/wiki/Blockchain_(database)>), for shor
 
 [![version](https://img.shields.io/github/tag/tendermint/tendermint.svg)](https://github.com/tendermint/tendermint/releases/latest)
 [![API Reference](https://camo.githubusercontent.com/915b7be44ada53c290eb157634330494ebe3e30a/68747470733a2f2f676f646f632e6f72672f6769746875622e636f6d2f676f6c616e672f6764646f3f7374617475732e737667)](https://pkg.go.dev/github.com/tendermint/tendermint)
-[![Go version](https://img.shields.io/badge/go-1.15-blue.svg)](https://github.com/moovweb/gvm)
+[![Go version](https://img.shields.io/badge/go-1.16-blue.svg)](https://github.com/moovweb/gvm)
 [![Discord chat](https://img.shields.io/discord/669268347736686612.svg)](https://discord.gg/vcExX9T)
 [![license](https://img.shields.io/github/license/tendermint/tendermint.svg)](https://github.com/tendermint/tendermint/blob/master/LICENSE)
 [![tendermint/tendermint](https://tokei.rs/b1/github/tendermint/tendermint?category=lines)](https://github.com/tendermint/tendermint)
@@ -18,8 +18,7 @@ Or [Blockchain](<https://en.wikipedia.org/wiki/Blockchain_(database)>), for shor
 |--------|--------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------|
 | master | ![Tests](https://github.com/tendermint/tendermint/workflows/Tests/badge.svg?branch=master) | [![codecov](https://codecov.io/gh/tendermint/tendermint/branch/master/graph/badge.svg)](https://codecov.io/gh/tendermint/tendermint) | ![Lint](https://github.com/tendermint/tendermint/workflows/Lint/badge.svg) |
 
-Tendermint Core is Byzantine Fault Tolerant (BFT) middleware that takes a state transition machine - written in any programming language -
-and securely replicates it on many machines.
+Tendermint Core is a Byzantine Fault Tolerant (BFT) middleware that takes a state transition machine - written in any programming language - and securely replicates it on many machines.
 
 For protocol details, see [the specification](https://github.com/tendermint/spec).
 
@@ -30,9 +29,7 @@ see our recent paper, "[The latest gossip on BFT consensus](https://arxiv.org/ab
 
 Please do not depend on master as your production branch. Use [releases](https://github.com/tendermint/tendermint/releases) instead.
 
-Tendermint is being used in production in both private and public environments,
-most notably the blockchains of the [Cosmos Network](https://cosmos.network/).
-However, we are still making breaking changes to the protocol and the APIs and have not yet released v1.0.
+Tendermint has been in the production of private and public environments, most notably the blockchains of the Cosmos Network. we haven't released v1.0 yet since we are making breaking changes to the protocol and the APIs. 
 See below for more details about [versioning](#versioning).
 
 In any case, if you intend to run Tendermint in production, we're happy to help. You can
@@ -51,7 +48,7 @@ to notify you of vulnerabilities and fixes in Tendermint Core. You can subscribe
 
 | Requirement | Notes            |
 |-------------|------------------|
-| Go version  | Go1.15 or higher |
+| Go version  | Go1.16 or higher |
 
 ## Documentation
 
@@ -167,4 +164,4 @@ If you'd like to work full-time on Tendermint Core, [we're hiring](https://inter
 
 Funding for Tendermint Core development comes primarily from the [Interchain Foundation](https://interchain.io),
 a Swiss non-profit. The Tendermint trademark is owned by [Tendermint Inc.](https://tendermint.com), the for-profit entity
- that also maintains [tendermint.com](https://tendermint.com).
+ that also maintains [tendermint.com](https://tendermint.com).

UPGRADING.md

@@ -7,24 +7,54 @@ This guide provides instructions for upgrading to specific versions of Tendermin
 ### ABCI Changes
 
 * Added `AbciVersion` to `RequestInfo`. Applications should check that the ABCI version they expect is being used in order to avoid unimplemented changes errors.
-
 * The method `SetOption` has been removed from the ABCI.Client interface. This feature was used in the early ABCI implementation's.
-
 * Messages are written to a byte stream using uin64 length delimiters instead of int64.
+* When mempool `v1` is enabled, transactions broadcasted via `sync` mode may return a successful
+  response with a transaction hash indicating that the transaction was successfully inserted into
+  the mempool. While this is true for `v0`, the `v1` mempool reactor may at a later point in time
+  evict or even drop this transaction after a hash has been returned. Thus, the user or client must
+  query for that transaction to check if it is still in the mempool.
 
 ### Config Changes
 
-* `fast_sync = "v1"` is no longer supported. Please use `v2` instead.
+* `fast_sync = "v1"` and `fast_sync = "v2"` are no longer supported. Please use `v0` instead.
 
 * All config parameters are now hyphen-case (also known as kebab-case) instead of snake_case. Before restarting the node make sure
   you have updated all the variables in your `config.toml` file.
 
 * Added `--mode` flag and `mode` config variable on `config.toml` for setting Mode of the Node: `full` | `validator` | `seed` (default: `full`)
   [ADR-52](https://github.com/tendermint/tendermint/blob/master/docs/architecture/adr-052-tendermint-mode.md)
-  
+
 * `BootstrapPeers` has been added as part of the new p2p stack. This will eventually replace
   `Seeds`. Bootstrap peers are connected with on startup if needed for peer discovery. Unlike
-  persistent peers, there's no gaurantee that the node will remain connected with these peers. 
+  persistent peers, there's no gaurantee that the node will remain connected with these peers.
+
+* configuration values starting with `priv-validator-` have moved to the new
+  `priv-validator` section, without the `priv-validator-` prefix.
+
+* The fast sync process as well as the blockchain package and service has all
+  been renamed to block sync
+
+### Key Format Changes
+
+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.
+
+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.
+
+The migration operation is idempotent and can be run more than once,
+if needed.
 
 ### CLI Changes
 
@@ -41,13 +71,68 @@ This guide provides instructions for upgrading to specific versions of Tendermin
 
 * CLI commands and flags are all now hyphen-case instead of snake_case.
   Make sure to adjust any scripts that calls a cli command with snake_casing
+
+### API Changes
+
+The p2p layer was reimplemented as part of the 0.35 release cycle, and
+all reactors were refactored. As part of that work these
+implementations moved into the `internal` package and are no longer
+considered part of the public Go API of tendermint. These packages
+are:
+
+- `p2p`
+- `mempool`
+- `consensus`
+- `statesync`
+- `blockchain`
+- `evidence`
+
+Accordingly, the `node` package was changed to reduce access to
+tendermint internals: applications that use tendermint as a library
+will need to change to accommodate these changes. Most notably:
+
+- The `Node` type has become internal, and all constructors return a
+  `service.Service` implementation.
+
+- The `node.DefaultNewNode` and `node.NewNode` constructors are no
+  longer exported and have been replaced with `node.New` and
+  `node.NewDefault` which provide more functional interfaces.
+
+### RPC changes
+
+#### gRPC Support
+
+Mark gRPC in the RPC layer as deprecated and to be removed in 0.36.
+
+#### Peer Management Interface
+
+When running with the new P2P Layer, the methods `UnsafeDialSeeds` and
+`UnsafeDialPeers` RPC methods will always return an error. They are
+deprecated and will be removed in 0.36 when the legacy peer stack is
+removed.
+
+Additionally the format of the Peer list returned in the `NetInfo`
+method changes in this release to accommodate the different way that
+the new stack tracks data about peers. This change affects users of
+both stacks.
+
+### Support for Custom Reactor and Mempool Implementations
+
+The changes to p2p layer removed existing support for custom
+reactors. Based on our understanding of how this functionality was
+used, the introduction of the prioritized mempool covers nearly all of
+the use cases for custom reactors. If you are currently running custom
+reactors and mempools and are having trouble seeing the migration path
+for your project please feel free to reach out to the Tendermint Core
+development team directly.
+
 ## v0.34.0
 
 **Upgrading to Tendermint 0.34 requires a blockchain restart.**
 This release is not compatible with previous blockchains due to changes to
 the encoding format (see "Protocol Buffers," below) and the block header (see "Blockchain Protocol").
 
-Note also that Tendermint 0.34 also requires Go 1.15 or higher.
+Note also that Tendermint 0.34 also requires Go 1.16 or higher.
 
 ### ABCI Changes
 
@@ -194,8 +279,8 @@ Other user-relevant changes include:
 
 * The old `lite` package was removed; the new light client uses the `light` package.
 * The `Verifier` was broken up into two pieces:
-    * Core verification logic (pure `VerifyX` functions)
-    * `Client` object, which represents the complete light client
+	* Core verification logic (pure `VerifyX` functions)
+	* `Client` object, which represents the complete light client
 * The new light clients stores headers & validator sets as `LightBlock`s
 * The RPC client can be found in the `/rpc` directory.
 * The HTTP(S) proxy is located in the `/proxy` directory.
@@ -327,12 +412,12 @@ Evidence Params has been changed to include duration.
 ### Go API
 
 * `libs/common` has been removed in favor of specific pkgs.
-    * `async`
-    * `service`
-    * `rand`
-    * `net`
-    * `strings`
-    * `cmap`
+	* `async`
+	* `service`
+	* `rand`
+	* `net`
+	* `strings`
+	* `cmap`
 * removal of `errors` pkg
 
 ### RPC Changes
@@ -401,9 +486,9 @@ Prior to the update, suppose your `ResponseDeliverTx` look like:
 ```go
 abci.ResponseDeliverTx{
   Tags: []kv.Pair{
-    {Key: []byte("sender"), Value: []byte("foo")},
-    {Key: []byte("recipient"), Value: []byte("bar")},
-    {Key: []byte("amount"), Value: []byte("35")},
+	{Key: []byte("sender"), Value: []byte("foo")},
+	{Key: []byte("recipient"), Value: []byte("bar")},
+	{Key: []byte("amount"), Value: []byte("35")},
   }
 }
 ```
@@ -422,14 +507,14 @@ the following `Events`:
 ```go
 abci.ResponseDeliverTx{
   Events: []abci.Event{
-    {
-      Type: "transfer",
-      Attributes: kv.Pairs{
-        {Key: []byte("sender"), Value: []byte("foo")},
-        {Key: []byte("recipient"), Value: []byte("bar")},
-        {Key: []byte("amount"), Value: []byte("35")},
-      },
-    }
+	{
+	  Type: "transfer",
+	  Attributes: kv.Pairs{
+		{Key: []byte("sender"), Value: []byte("foo")},
+		{Key: []byte("recipient"), Value: []byte("bar")},
+		{Key: []byte("amount"), Value: []byte("35")},
+	  },
+	}
 }
 ```
 
@@ -477,9 +562,9 @@ In this case, the WS client will receive an error with description:
   "jsonrpc": "2.0",
   "id": "{ID}#event",
   "error": {
-    "code": -32000,
-    "msg": "Server error",
-    "data": "subscription was canceled (reason: client is not pulling messages fast enough)" // or "subscription was canceled (reason: Tendermint exited)"
+	"code": -32000,
+	"msg": "Server error",
+	"data": "subscription was canceled (reason: client is not pulling messages fast enough)" // or "subscription was canceled (reason: Tendermint exited)"
   }
 }
 
@@ -685,9 +770,9 @@ just the `Data` field set:
 
 ```go
 []ProofOp{
-    ProofOp{
-        Data: <proof bytes>,
-    }
+	ProofOp{
+		Data: <proof bytes>,
+	}
 }
 ```
 

abci/client/client.go

@@ -6,8 +6,8 @@ import (
 	"sync"
 
 	"github.com/tendermint/tendermint/abci/types"
+	tmsync "github.com/tendermint/tendermint/internal/libs/sync"
 	"github.com/tendermint/tendermint/libs/service"
-	tmsync "github.com/tendermint/tendermint/libs/sync"
 )
 
 const (
@@ -15,7 +15,7 @@ const (
 	echoRetryIntervalSeconds = 1
 )
 
-//go:generate mockery --case underscore --name Client
+//go:generate ../../scripts/mockery_generate.sh Client
 
 // Client defines an interface for an ABCI client.
 //

abci/client/grpc_client.go

@@ -10,9 +10,9 @@ import (
 	"google.golang.org/grpc"
 
 	"github.com/tendermint/tendermint/abci/types"
+	tmsync "github.com/tendermint/tendermint/internal/libs/sync"
 	tmnet "github.com/tendermint/tendermint/libs/net"
 	"github.com/tendermint/tendermint/libs/service"
-	tmsync "github.com/tendermint/tendermint/libs/sync"
 )
 
 // A gRPC client.

abci/client/local_client.go

@@ -4,8 +4,8 @@ import (
 	"context"
 
 	types "github.com/tendermint/tendermint/abci/types"
+	tmsync "github.com/tendermint/tendermint/internal/libs/sync"
 	"github.com/tendermint/tendermint/libs/service"
-	tmsync "github.com/tendermint/tendermint/libs/sync"
 )
 
 // NOTE: use defer to unlock mutex because Application might panic (e.g., in

abci/client/mocks/client.go

@@ -1,4 +1,4 @@
-// Code generated by mockery v2.5.1. DO NOT EDIT.
+// Code generated by mockery. DO NOT EDIT.
 
 package mocks
 
@@ -796,3 +796,8 @@ func (_m *Client) String() string {
 
 	return r0
 }
+
+// Wait provides a mock function with given fields:
+func (_m *Client) Wait() {
+	_m.Called()
+}

abci/client/socket_client.go

@@ -12,10 +12,10 @@ import (
 	"time"
 
 	"github.com/tendermint/tendermint/abci/types"
+	tmsync "github.com/tendermint/tendermint/internal/libs/sync"
+	"github.com/tendermint/tendermint/internal/libs/timer"
 	tmnet "github.com/tendermint/tendermint/libs/net"
 	"github.com/tendermint/tendermint/libs/service"
-	tmsync "github.com/tendermint/tendermint/libs/sync"
-	"github.com/tendermint/tendermint/libs/timer"
 )
 
 const (

abci/cmd/abci-cli/abci-cli.go

@@ -17,7 +17,6 @@ import (
 
 	abcicli "github.com/tendermint/tendermint/abci/client"
 	"github.com/tendermint/tendermint/abci/example/code"
-	"github.com/tendermint/tendermint/abci/example/counter"
 	"github.com/tendermint/tendermint/abci/example/kvstore"
 	"github.com/tendermint/tendermint/abci/server"
 	servertest "github.com/tendermint/tendermint/abci/tests/server"
@@ -47,9 +46,6 @@ var (
 	flagHeight int
 	flagProve  bool
 
-	// counter
-	flagSerial bool
-
 	// kvstore
 	flagPersist string
 )
@@ -61,19 +57,14 @@ var RootCmd = &cobra.Command{
 	PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
 
 		switch cmd.Use {
-		case "counter", "kvstore": // for the examples apps, don't pre-run
-			return nil
-		case "version": // skip running for version command
+		case "kvstore", "version":
 			return nil
 		}
 
 		if logger == nil {
-			allowLevel, err := log.AllowLevel(flagLogLevel)
-			if err != nil {
-				return err
-			}
-			logger = log.NewFilter(log.NewTMLogger(log.NewSyncWriter(os.Stdout)), allowLevel)
+			logger = log.MustNewDefaultLogger(log.LogFormatPlain, log.LogLevelInfo, false)
 		}
+
 		if client == nil {
 			var err error
 			client, err = abcicli.NewClient(flagAddress, flagAbci, false)
@@ -138,10 +129,6 @@ func addQueryFlags() {
 		"whether or not to return a merkle proof of the query result")
 }
 
-func addCounterFlags() {
-	counterCmd.PersistentFlags().BoolVarP(&flagSerial, "serial", "", false, "enforce incrementing (serial) transactions")
-}
-
 func addKVStoreFlags() {
 	kvstoreCmd.PersistentFlags().StringVarP(&flagPersist, "persist", "", "", "directory to use for a database")
 }
@@ -160,8 +147,6 @@ func addCommands() {
 	RootCmd.AddCommand(queryCmd)
 
 	// examples
-	addCounterFlags()
-	RootCmd.AddCommand(counterCmd)
 	addKVStoreFlags()
 	RootCmd.AddCommand(kvstoreCmd)
 }
@@ -261,14 +246,6 @@ var queryCmd = &cobra.Command{
 	RunE:  cmdQuery,
 }
 
-var counterCmd = &cobra.Command{
-	Use:   "counter",
-	Short: "ABCI demo example",
-	Long:  "ABCI demo example",
-	Args:  cobra.ExactArgs(0),
-	RunE:  cmdCounter,
-}
-
 var kvstoreCmd = &cobra.Command{
 	Use:   "kvstore",
 	Short: "ABCI demo example",
@@ -596,34 +573,8 @@ func cmdQuery(cmd *cobra.Command, args []string) error {
 	return nil
 }
 
-func cmdCounter(cmd *cobra.Command, args []string) error {
-	app := counter.NewApplication(flagSerial)
-	logger := log.NewTMLogger(log.NewSyncWriter(os.Stdout))
-
-	// Start the listener
-	srv, err := server.NewServer(flagAddress, flagAbci, app)
-	if err != nil {
-		return err
-	}
-	srv.SetLogger(logger.With("module", "abci-server"))
-	if err := srv.Start(); err != nil {
-		return err
-	}
-
-	// Stop upon receiving SIGTERM or CTRL-C.
-	tmos.TrapSignal(logger, func() {
-		// Cleanup
-		if err := srv.Stop(); err != nil {
-			logger.Error("Error while stopping server", "err", err)
-		}
-	})
-
-	// Run forever.
-	select {}
-}
-
 func cmdKVStore(cmd *cobra.Command, args []string) error {
-	logger := log.NewTMLogger(log.NewSyncWriter(os.Stdout))
+	logger := log.MustNewDefaultLogger(log.LogFormatPlain, log.LogLevelInfo, false)
 
 	// Create the application - in memory or persisted to disk
 	var app types.Application

abci/example/counter/counter.go

@@ -1,86 +0,0 @@
-package counter
-
-import (
-	"encoding/binary"
-	"fmt"
-
-	"github.com/tendermint/tendermint/abci/example/code"
-	"github.com/tendermint/tendermint/abci/types"
-)
-
-type Application struct {
-	types.BaseApplication
-
-	hashCount int
-	txCount   int
-	serial    bool
-}
-
-func NewApplication(serial bool) *Application {
-	return &Application{serial: serial}
-}
-
-func (app *Application) Info(req types.RequestInfo) types.ResponseInfo {
-	return types.ResponseInfo{Data: fmt.Sprintf("{\"hashes\":%v,\"txs\":%v}", app.hashCount, app.txCount)}
-}
-
-func (app *Application) DeliverTx(req types.RequestDeliverTx) types.ResponseDeliverTx {
-	if app.serial {
-		if len(req.Tx) > 8 {
-			return types.ResponseDeliverTx{
-				Code: code.CodeTypeEncodingError,
-				Log:  fmt.Sprintf("Max tx size is 8 bytes, got %d", len(req.Tx))}
-		}
-		tx8 := make([]byte, 8)
-		copy(tx8[len(tx8)-len(req.Tx):], req.Tx)
-		txValue := binary.BigEndian.Uint64(tx8)
-		if txValue != uint64(app.txCount) {
-			return types.ResponseDeliverTx{
-				Code: code.CodeTypeBadNonce,
-				Log:  fmt.Sprintf("Invalid nonce. Expected %v, got %v", app.txCount, txValue)}
-		}
-	}
-	app.txCount++
-	return types.ResponseDeliverTx{Code: code.CodeTypeOK}
-}
-
-func (app *Application) CheckTx(req types.RequestCheckTx) types.ResponseCheckTx {
-	if app.serial {
-		if len(req.Tx) > 8 {
-			return types.ResponseCheckTx{
-				Code: code.CodeTypeEncodingError,
-				Log:  fmt.Sprintf("Max tx size is 8 bytes, got %d", len(req.Tx))}
-		}
-
-		tx8 := make([]byte, 8)
-		copy(tx8[len(tx8)-len(req.Tx):], req.Tx)
-		txValue := binary.BigEndian.Uint64(tx8)
-		if txValue < uint64(app.txCount) {
-			return types.ResponseCheckTx{
-				Code: code.CodeTypeBadNonce,
-				Log:  fmt.Sprintf("Invalid nonce. Expected >= %v, got %v", app.txCount, txValue)}
-		}
-	}
-	return types.ResponseCheckTx{Code: code.CodeTypeOK}
-}
-
-func (app *Application) Commit() (resp types.ResponseCommit) {
-	app.hashCount++
-	if app.txCount == 0 {
-		return types.ResponseCommit{}
-	}
-	hash := make([]byte, 8)
-	binary.BigEndian.PutUint64(hash, uint64(app.txCount))
-	return types.ResponseCommit{Data: hash}
-}
-
-func (app *Application) Query(reqQuery types.RequestQuery) types.ResponseQuery {
-	switch reqQuery.Path {
-	case "hash":
-		return types.ResponseQuery{Value: []byte(fmt.Sprintf("%v", app.hashCount))}
-	case "tx":
-		return types.ResponseQuery{Value: []byte(fmt.Sprintf("%v", app.txCount))}
-	default:
-		return types.ResponseQuery{Log: fmt.Sprintf("Invalid query path. Expected hash or tx, got %v", reqQuery.Path)}
-	}
-}

abci/server/socket_server.go

@@ -9,10 +9,10 @@ import (
 	"runtime"
 
 	"github.com/tendermint/tendermint/abci/types"
+	tmsync "github.com/tendermint/tendermint/internal/libs/sync"
 	tmlog "github.com/tendermint/tendermint/libs/log"
 	tmnet "github.com/tendermint/tendermint/libs/net"
 	"github.com/tendermint/tendermint/libs/service"
-	tmsync "github.com/tendermint/tendermint/libs/sync"
 )
 
 // var maxNumberConnections = 2

abci/tests/test_app/app.go

@@ -1,56 +0,0 @@
-package main
-
-import (
-	"bytes"
-	"context"
-	"fmt"
-	"os"
-
-	abcicli "github.com/tendermint/tendermint/abci/client"
-	"github.com/tendermint/tendermint/abci/types"
-	"github.com/tendermint/tendermint/libs/log"
-)
-
-var ctx = context.Background()
-
-func startClient(abciType string) abcicli.Client {
-	// Start client
-	client, err := abcicli.NewClient("tcp://127.0.0.1:26658", abciType, true)
-	if err != nil {
-		panic(err.Error())
-	}
-	logger := log.NewTMLogger(log.NewSyncWriter(os.Stdout))
-	client.SetLogger(logger.With("module", "abcicli"))
-	if err := client.Start(); err != nil {
-		panicf("connecting to abci_app: %v", err.Error())
-	}
-
-	return client
-}
-
-func commit(client abcicli.Client, hashExp []byte) {
-	res, err := client.CommitSync(ctx)
-	if err != nil {
-		panicf("client error: %v", err)
-	}
-	if !bytes.Equal(res.Data, hashExp) {
-		panicf("Commit hash was unexpected. Got %X expected %X", res.Data, hashExp)
-	}
-}
-
-func deliverTx(client abcicli.Client, txBytes []byte, codeExp uint32, dataExp []byte) {
-	res, err := client.DeliverTxSync(ctx, types.RequestDeliverTx{Tx: txBytes})
-	if err != nil {
-		panicf("client error: %v", err)
-	}
-	if res.Code != codeExp {
-		panicf("DeliverTx response code was unexpected. Got %v expected %v. Log: %v", res.Code, codeExp, res.Log)
-	}
-	if !bytes.Equal(res.Data, dataExp) {
-		panicf("DeliverTx response data was unexpected. Got %X expected %X", res.Data, dataExp)
-	}
-}
-
-func panicf(format string, a ...interface{}) {
-	panic(fmt.Sprintf(format, a...))
-}

abci/tests/test_app/main.go

@@ -1,93 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"log"
-	"os"
-	"os/exec"
-	"time"
-
-	"github.com/tendermint/tendermint/abci/types"
-)
-
-var abciType string
-
-func init() {
-	abciType = os.Getenv("ABCI")
-	if abciType == "" {
-		abciType = "socket"
-	}
-}
-
-func main() {
-	testCounter()
-}
-
-const (
-	maxABCIConnectTries = 10
-)
-
-func ensureABCIIsUp(typ string, n int) error {
-	var err error
-	cmdString := "abci-cli echo hello"
-	if typ == "grpc" {
-		cmdString = "abci-cli --abci grpc echo hello"
-	}
-
-	for i := 0; i < n; i++ {
-		cmd := exec.Command("bash", "-c", cmdString)
-		_, err = cmd.CombinedOutput()
-		if err == nil {
-			break
-		}
-		time.Sleep(500 * time.Millisecond)
-	}
-	return err
-}
-
-func testCounter() {
-	abciApp := os.Getenv("ABCI_APP")
-	if abciApp == "" {
-		panic("No ABCI_APP specified")
-	}
-
-	fmt.Printf("Running %s test with abci=%s\n", abciApp, abciType)
-	subCommand := fmt.Sprintf("abci-cli %s", abciApp)
-	cmd := exec.Command("bash", "-c", subCommand)
-	cmd.Stdout = os.Stdout
-	if err := cmd.Start(); err != nil {
-		log.Fatalf("starting %q err: %v", abciApp, err)
-	}
-	defer func() {
-		if err := cmd.Process.Kill(); err != nil {
-			log.Printf("error on process kill: %v", err)
-		}
-		if err := cmd.Wait(); err != nil {
-			log.Printf("error while waiting for cmd to exit: %v", err)
-		}
-	}()
-
-	if err := ensureABCIIsUp(abciType, maxABCIConnectTries); err != nil {
-		log.Fatalf("echo failed: %v", err) //nolint:gocritic
-	}
-
-	client := startClient(abciType)
-	defer func() {
-		if err := client.Stop(); err != nil {
-			log.Printf("error trying client stop: %v", err)
-		}
-	}()
-
-	// commit(client, nil)
-	// deliverTx(client, []byte("abc"), code.CodeTypeBadNonce, nil)
-	commit(client, nil)
-	deliverTx(client, []byte{0x00}, types.CodeTypeOK, nil)
-	commit(client, []byte{0, 0, 0, 0, 0, 0, 0, 1})
-	// deliverTx(client, []byte{0x00}, code.CodeTypeBadNonce, nil)
-	deliverTx(client, []byte{0x01}, types.CodeTypeOK, nil)
-	deliverTx(client, []byte{0x00, 0x02}, types.CodeTypeOK, nil)
-	deliverTx(client, []byte{0x00, 0x03}, types.CodeTypeOK, nil)
-	deliverTx(client, []byte{0x00, 0x00, 0x04}, types.CodeTypeOK, nil)
-	// deliverTx(client, []byte{0x00, 0x00, 0x06}, code.CodeTypeBadNonce, nil)
-	commit(client, []byte{0, 0, 0, 0, 0, 0, 0, 5})
-}

abci/tests/test_app/test.sh

@@ -1,28 +0,0 @@
-#! /bin/bash
-set -e
-
-# These tests spawn the counter app and server by execing the ABCI_APP command and run some simple client tests against it
-
-# Get the directory of where this script is.
-export PATH="$GOBIN:$PATH"
-SOURCE="${BASH_SOURCE[0]}"
-while [ -h "$SOURCE" ] ; do SOURCE="$(readlink "$SOURCE")"; done
-DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"
-
-# Change into that dir because we expect that.
-cd "$DIR"
-
-echo "RUN COUNTER OVER SOCKET"
-# test golang counter
-ABCI_APP="counter" go run -mod=readonly ./*.go
-echo "----------------------"
-
-
-echo "RUN COUNTER OVER GRPC"
-# test golang counter via grpc
-ABCI_APP="counter --abci=grpc" ABCI="grpc" go run -mod=readonly ./*.go
-echo "----------------------"
-
-# test nodejs counter
-# TODO: fix node app
-#ABCI_APP="node $GOPATH/src/github.com/tendermint/js-abci/example/app.js" go test -test.run TestCounter

abci/tests/test_cli/test.sh

@@ -37,7 +37,6 @@ function testExample() {
 }
 
 testExample 1 tests/test_cli/ex1.abci abci-cli kvstore
-testExample 2 tests/test_cli/ex2.abci abci-cli counter
 
 echo ""
 echo "PASS"

abci/types/messages.go

@@ -4,7 +4,7 @@ import (
 	"io"
 
 	"github.com/gogo/protobuf/proto"
-	"github.com/tendermint/tendermint/libs/protoio"
+	"github.com/tendermint/tendermint/internal/libs/protoio"
 )
 
 const (
@@ -15,11 +15,7 @@ const (
 func WriteMessage(msg proto.Message, w io.Writer) error {
 	protoWriter := protoio.NewDelimitedWriter(w)
 	_, err := protoWriter.WriteMsg(msg)
-	if err != nil {
-		return err
-	}
-
-	return nil
+	return err
 }
 
 // ReadMessage reads a varint length-delimited protobuf message.

abci/types/types.pb.go

@@ -1835,6 +1835,11 @@ type ResponseCheckTx struct {
 	GasUsed   int64   `protobuf:"varint,6,opt,name=gas_used,proto3" json:"gas_used,omitempty"`
 	Events    []Event `protobuf:"bytes,7,rep,name=events,proto3" json:"events,omitempty"`
 	Codespace string  `protobuf:"bytes,8,opt,name=codespace,proto3" json:"codespace,omitempty"`
+	Sender    string  `protobuf:"bytes,9,opt,name=sender,proto3" json:"sender,omitempty"`
+	Priority  int64   `protobuf:"varint,10,opt,name=priority,proto3" json:"priority,omitempty"`
+	// mempool_error is set by Tendermint.
+	// ABCI applictions creating a ResponseCheckTX should not set mempool_error.
+	MempoolError string `protobuf:"bytes,11,opt,name=mempool_error,json=mempoolError,proto3" json:"mempool_error,omitempty"`
 }
 
 func (m *ResponseCheckTx) Reset()         { *m = ResponseCheckTx{} }
@@ -1926,6 +1931,27 @@ func (m *ResponseCheckTx) GetCodespace() string {
 	return ""
 }
 
+func (m *ResponseCheckTx) GetSender() string {
+	if m != nil {
+		return m.Sender
+	}
+	return ""
+}
+
+func (m *ResponseCheckTx) GetPriority() int64 {
+	if m != nil {
+		return m.Priority
+	}
+	return 0
+}
+
+func (m *ResponseCheckTx) GetMempoolError() string {
+	if m != nil {
+		return m.MempoolError
+	}
+	return ""
+}
+
 type ResponseDeliverTx struct {
 	Code      uint32  `protobuf:"varint,1,opt,name=code,proto3" json:"code,omitempty"`
 	Data      []byte  `protobuf:"bytes,2,opt,name=data,proto3" json:"data,omitempty"`
@@ -2938,169 +2964,172 @@ func init() {
 func init() { proto.RegisterFile("tendermint/abci/types.proto", fileDescriptor_252557cfdd89a31a) }
 
 var fileDescriptor_252557cfdd89a31a = []byte{
-	// 2585 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe4, 0x5a, 0x4b, 0x73, 0x1b, 0xc7,
-	0x11, 0xc6, 0x1b, 0xd8, 0x26, 0x01, 0x82, 0x23, 0x5a, 0x86, 0x60, 0x89, 0x94, 0x57, 0x25, 0xc7,
-	0x92, 0x6d, 0x32, 0xa6, 0x4a, 0x8a, 0x5c, 0xce, 0xc3, 0x04, 0x04, 0x05, 0xb4, 0x18, 0x92, 0x19,
-	0x42, 0x72, 0x39, 0x89, 0xb5, 0x5e, 0x60, 0x87, 0xc0, 0x5a, 0xc0, 0xee, 0x1a, 0x3b, 0xa0, 0x48,
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+	0x87, 0x07, 0xbb, 0x3b, 0x8d, 0xed, 0x76, 0x53, 0x7b, 0xb4, 0xdf, 0x6e, 0x56, 0x92, 0xe8, 0x55,
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+	0x08, 0xdd, 0x87, 0x2c, 0xbf, 0x3c, 0xa2, 0xb3, 0xdf, 0xf1, 0x6a, 0x73, 0xea, 0x49, 0x6c, 0x30,
+	0x3c, 0x3d, 0xce, 0x7c, 0xd8, 0xab, 0x9d, 0x5d, 0x5e, 0x42, 0x18, 0x94, 0x31, 0xf9, 0x9c, 0xff,
+	0xd0, 0x55, 0x5b, 0x00, 0x6c, 0xd0, 0x2e, 0xe4, 0xfd, 0xfb, 0xc2, 0xbc, 0xa7, 0xb7, 0xda, 0xdc,
+	0xfa, 0x0f, 0x0b, 0x97, 0xb8, 0xd7, 0x9d, 0xfd, 0x8e, 0x58, 0x9b, 0x53, 0xcc, 0x42, 0x3b, 0x90,
+	0x93, 0x84, 0x6a, 0xce, 0x73, 0x5a, 0x6d, 0x5e, 0x3d, 0x87, 0x05, 0x6d, 0x7c, 0x63, 0x9e, 0xff,
+	0x3a, 0x5a, 0x5b, 0xa0, 0x4e, 0x87, 0x1e, 0x02, 0x84, 0x6e, 0x71, 0x0b, 0x3c, 0x7b, 0xd6, 0x16,
+	0xa9, 0xbf, 0xa1, 0x7d, 0x28, 0x04, 0xa4, 0x7a, 0xee, 0x23, 0x64, 0x6d, 0x7e, 0x21, 0x0c, 0x3d,
+	0x86, 0x52, 0x94, 0x4c, 0x2e, 0xf6, 0xb4, 0x58, 0x5b, 0xb0, 0xc2, 0xc5, 0xfc, 0x47, 0x99, 0xe5,
+	0x62, 0x4f, 0x8d, 0xb5, 0x05, 0x0b, 0x5e, 0xe8, 0x33, 0x58, 0x99, 0x66, 0x7e, 0x8b, 0xbf, 0x3c,
+	0xd6, 0xce, 0x51, 0x02, 0x43, 0x43, 0x40, 0x33, 0x18, 0xe3, 0x39, 0x1e, 0x22, 0x6b, 0xe7, 0xa9,
+	0x88, 0xd5, 0x9b, 0x5f, 0xbd, 0x58, 0x4b, 0x7e, 0xfd, 0x62, 0x2d, 0xf9, 0x8f, 0x17, 0x6b, 0xc9,
+	0xe7, 0x2f, 0xd7, 0x12, 0x5f, 0xbf, 0x5c, 0x4b, 0xfc, 0xf5, 0xe5, 0x5a, 0xe2, 0x67, 0x6f, 0xf5,
+	0x4c, 0xda, 0x1f, 0x75, 0x36, 0xba, 0xf6, 0x70, 0x33, 0xfc, 0x0f, 0x87, 0x59, 0xff, 0xba, 0xe8,
+	0xe4, 0xf8, 0xa1, 0x72, 0xeb, 0x3f, 0x01, 0x00, 0x00, 0xff, 0xff, 0x92, 0xa5, 0x39, 0xcc, 0x95,
+	0x21, 0x00, 0x00,
 }
 
 // Reference imports to suppress errors if they are not otherwise used.
@@ -5212,6 +5241,25 @@ func (m *ResponseCheckTx) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 	_ = i
 	var l int
 	_ = l
+	if len(m.MempoolError) > 0 {
+		i -= len(m.MempoolError)
+		copy(dAtA[i:], m.MempoolError)
+		i = encodeVarintTypes(dAtA, i, uint64(len(m.MempoolError)))
+		i--
+		dAtA[i] = 0x5a
+	}
+	if m.Priority != 0 {
+		i = encodeVarintTypes(dAtA, i, uint64(m.Priority))
+		i--
+		dAtA[i] = 0x50
+	}
+	if len(m.Sender) > 0 {
+		i -= len(m.Sender)
+		copy(dAtA[i:], m.Sender)
+		i = encodeVarintTypes(dAtA, i, uint64(len(m.Sender)))
+		i--
+		dAtA[i] = 0x4a
+	}
 	if len(m.Codespace) > 0 {
 		i -= len(m.Codespace)
 		copy(dAtA[i:], m.Codespace)
@@ -6806,6 +6854,17 @@ func (m *ResponseCheckTx) Size() (n int) {
 	if l > 0 {
 		n += 1 + l + sovTypes(uint64(l))
 	}
+	l = len(m.Sender)
+	if l > 0 {
+		n += 1 + l + sovTypes(uint64(l))
+	}
+	if m.Priority != 0 {
+		n += 1 + sovTypes(uint64(m.Priority))
+	}
+	l = len(m.MempoolError)
+	if l > 0 {
+		n += 1 + l + sovTypes(uint64(l))
+	}
 	return n
 }
 
@@ -11020,6 +11079,89 @@ func (m *ResponseCheckTx) Unmarshal(dAtA []byte) error {
 			}
 			m.Codespace = string(dAtA[iNdEx:postIndex])
 			iNdEx = postIndex
+		case 9:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Sender", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowTypes
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthTypes
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex < 0 {
+				return ErrInvalidLengthTypes
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.Sender = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
+		case 10:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Priority", wireType)
+			}
+			m.Priority = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowTypes
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Priority |= int64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 11:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field MempoolError", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowTypes
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthTypes
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex < 0 {
+				return ErrInvalidLengthTypes
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.MempoolError = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
 		default:
 			iNdEx = preIndex
 			skippy, err := skipTypes(dAtA[iNdEx:])

blockchain/doc.go

@@ -1,17 +0,0 @@
-/*
-Package blockchain provides two implementations of the fast-sync protocol.
-
-- v0 was the very first implementation. it's battle tested, but does not have a
-lot of test coverage.
-- v2 is the newest implementation, with a focus on testability and readability.
-
-Check out ADR-40 for the formal model and requirements.
-
-# Termination criteria
-
-1. the maximum peer height is reached
-2. termination timeout is triggered, which is set if the peer set is empty or
-there are no pending requests.
-
-*/
-package blockchain

blockchain/v0/test_util.go

@@ -1,18 +0,0 @@
-package v0
-
-import (
-	sm "github.com/tendermint/tendermint/state"
-	"github.com/tendermint/tendermint/types"
-)
-
-func makeTxs(height int64) (txs []types.Tx) {
-	for i := 0; i < 10; i++ {
-		txs = append(txs, types.Tx([]byte{byte(height), byte(i)}))
-	}
-	return txs
-}
-
-func makeBlock(height int64, state sm.State, lastCommit *types.Commit) *types.Block {
-	block, _ := state.MakeBlock(height, makeTxs(height), lastCommit, nil, state.Validators.GetProposer().Address)
-	return block
-}

cmd/priv_val_server/main.go

@@ -46,9 +46,8 @@ func main() {
 		rootCA           = flag.String("rootcafile", "", "absolute path to root CA")
 		prometheusAddr   = flag.String("prometheus-addr", "", "address for prometheus endpoint (host:port)")
 
-		logger = log.NewTMLogger(
-			log.NewSyncWriter(os.Stdout),
-		).With("module", "priv_val")
+		logger = log.MustNewDefaultLogger(log.LogFormatPlain, log.LogLevelInfo, false).
+			With("module", "priv_val")
 	)
 	flag.Parse()
 

cmd/tendermint/commands/debug/debug.go

@@ -1,8 +1,6 @@
 package debug
 
 import (
-	"os"
-
 	"github.com/spf13/cobra"
 
 	"github.com/tendermint/tendermint/libs/log"
@@ -17,7 +15,7 @@ var (
 	flagProfAddr    = "pprof-laddr"
 	flagFrequency   = "frequency"
 
-	logger = log.NewTMLogger(log.NewSyncWriter(os.Stdout))
+	logger = log.MustNewDefaultLogger(log.LogFormatPlain, log.LogLevelInfo, false)
 )
 
 // DebugCmd defines the root command containing subcommands that assist in

cmd/tendermint/commands/gen_node_key.go

@@ -6,7 +6,7 @@ import (
 	"github.com/spf13/cobra"
 
 	tmjson "github.com/tendermint/tendermint/libs/json"
-	"github.com/tendermint/tendermint/p2p"
+	"github.com/tendermint/tendermint/types"
 )
 
 // GenNodeKeyCmd allows the generation of a node key. It prints JSON-encoded
@@ -20,7 +20,7 @@ var GenNodeKeyCmd = &cobra.Command{
 }
 
 func genNodeKey(cmd *cobra.Command, args []string) error {
-	nodeKey := p2p.GenNodeKey()
+	nodeKey := types.GenNodeKey()
 
 	bz, err := tmjson.Marshal(nodeKey)
 	if err != nil {

cmd/tendermint/commands/init.go

@@ -10,10 +10,9 @@ import (
 	cfg "github.com/tendermint/tendermint/config"
 	tmos "github.com/tendermint/tendermint/libs/os"
 	tmrand "github.com/tendermint/tendermint/libs/rand"
-	"github.com/tendermint/tendermint/p2p"
+	tmtime "github.com/tendermint/tendermint/libs/time"
 	"github.com/tendermint/tendermint/privval"
 	"github.com/tendermint/tendermint/types"
-	tmtime "github.com/tendermint/tendermint/types/time"
 )
 
 // InitFilesCmd initializes a fresh Tendermint Core instance.
@@ -51,8 +50,8 @@ func initFilesWithConfig(config *cfg.Config) error {
 
 	if config.Mode == cfg.ModeValidator {
 		// private validator
-		privValKeyFile := config.PrivValidatorKeyFile()
-		privValStateFile := config.PrivValidatorStateFile()
+		privValKeyFile := config.PrivValidator.KeyFile()
+		privValStateFile := config.PrivValidator.StateFile()
 		if tmos.FileExists(privValKeyFile) {
 			pv, err = privval.LoadFilePV(privValKeyFile, privValStateFile)
 			if err != nil {
@@ -76,7 +75,7 @@ func initFilesWithConfig(config *cfg.Config) error {
 	if tmos.FileExists(nodeKeyFile) {
 		logger.Info("Found node key", "path", nodeKeyFile)
 	} else {
-		if _, err := p2p.LoadOrGenNodeKey(nodeKeyFile); err != nil {
+		if _, err := types.LoadOrGenNodeKey(nodeKeyFile); err != nil {
 			return err
 		}
 		logger.Info("Generated node key", "path", nodeKeyFile)

cmd/tendermint/commands/key_migrate.go

@@ -0,0 +1,64 @@
+package commands
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/spf13/cobra"
+	cfg "github.com/tendermint/tendermint/config"
+	"github.com/tendermint/tendermint/scripts/keymigrate"
+)
+
+func MakeKeyMigrateCommand() *cobra.Command {
+	cmd := &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)
+				}
+			}
+
+			logger.Info("completed database migration successfully")
+
+			return nil
+		},
+	}
+
+	// allow database info to be overridden via cli
+	addDBFlags(cmd)
+
+	return cmd
+}

cmd/tendermint/commands/light.go

@@ -1,7 +1,6 @@
 package commands
 
 import (
-	"bufio"
 	"context"
 	"errors"
 	"fmt"
@@ -67,7 +66,8 @@ var (
 	trustedHash    []byte
 	trustLevelStr  string
 
-	verbose bool
+	logLevel  string
+	logFormat string
 
 	primaryKey   = []byte("primary")
 	witnessesKey = []byte("witnesses")
@@ -91,7 +91,8 @@ func init() {
 		"trusting period that headers can be verified within. Should be significantly less than the unbonding period")
 	LightCmd.Flags().Int64Var(&trustedHeight, "height", 1, "Trusted header's height")
 	LightCmd.Flags().BytesHexVar(&trustedHash, "hash", []byte{}, "Trusted header's hash")
-	LightCmd.Flags().BoolVar(&verbose, "verbose", false, "Verbose output")
+	LightCmd.Flags().StringVar(&logLevel, "log-level", log.LogLevelInfo, "The logging level (debug|info|warn|error|fatal)")
+	LightCmd.Flags().StringVar(&logFormat, "log-format", log.LogFormatPlain, "The logging format (text|json)")
 	LightCmd.Flags().StringVar(&trustLevelStr, "trust-level", "1/3",
 		"trust level. Must be between 1/3 and 3/3",
 	)
@@ -101,15 +102,10 @@ func init() {
 }
 
 func runProxy(cmd *cobra.Command, args []string) error {
-	// Initialize logger.
-	logger := log.NewTMLogger(log.NewSyncWriter(os.Stdout))
-	var option log.Option
-	if verbose {
-		option, _ = log.AllowLevel("debug")
-	} else {
-		option, _ = log.AllowLevel("info")
+	logger, err := log.NewDefaultLogger(logFormat, logLevel, false)
+	if err != nil {
+		return err
 	}
-	logger = log.NewFilter(logger, option)
 
 	chainID = args[0]
 	logger.Info("Creating client...", "chainID", chainID)
@@ -148,25 +144,7 @@ func runProxy(cmd *cobra.Command, args []string) error {
 		return fmt.Errorf("can't parse trust level: %w", err)
 	}
 
-	options := []light.Option{
-		light.Logger(logger),
-		light.ConfirmationFunction(func(action string) bool {
-			fmt.Println(action)
-			scanner := bufio.NewScanner(os.Stdin)
-			for {
-				scanner.Scan()
-				response := scanner.Text()
-				switch response {
-				case "y", "Y":
-					return true
-				case "n", "N":
-					return false
-				default:
-					fmt.Println("please input 'Y' or 'n' and press ENTER")
-				}
-			}
-		}),
-	}
+	options := []light.Option{light.Logger(logger)}
 
 	if sequential {
 		options = append(options, light.SequentialVerification())
@@ -174,31 +152,21 @@ func runProxy(cmd *cobra.Command, args []string) error {
 		options = append(options, light.SkippingVerification(trustLevel))
 	}
 
-	var c *light.Client
-	if trustedHeight > 0 && len(trustedHash) > 0 { // fresh installation
-		c, err = light.NewHTTPClient(
-			context.Background(),
-			chainID,
-			light.TrustOptions{
-				Period: trustingPeriod,
-				Height: trustedHeight,
-				Hash:   trustedHash,
-			},
-			primaryAddr,
-			witnessesAddrs,
-			dbs.New(db),
-			options...,
-		)
-	} else { // continue from latest state
-		c, err = light.NewHTTPClientFromTrustedStore(
-			chainID,
-			trustingPeriod,
-			primaryAddr,
-			witnessesAddrs,
-			dbs.New(db),
-			options...,
-		)
-	}
+	// Initiate the light client. If the trusted store already has blocks in it, this
+	// will be used else we use the trusted options.
+	c, err := light.NewHTTPClient(
+		context.Background(),
+		chainID,
+		light.TrustOptions{
+			Period: trustingPeriod,
+			Height: trustedHeight,
+			Hash:   trustedHash,
+		},
+		primaryAddr,
+		witnessesAddrs,
+		dbs.New(db),
+		options...,
+	)
 	if err != nil {
 		return err
 	}

cmd/tendermint/commands/probe_upnp.go

@@ -5,8 +5,8 @@ import (
 
 	"github.com/spf13/cobra"
 
+	"github.com/tendermint/tendermint/internal/p2p/upnp"
 	tmjson "github.com/tendermint/tendermint/libs/json"
-	"github.com/tendermint/tendermint/p2p/upnp"
 )
 
 // ProbeUpnpCmd adds capabilities to test the UPnP functionality.

cmd/tendermint/commands/reindex_event.go

@@ -0,0 +1,251 @@
+package commands
+
+import (
+	"errors"
+	"fmt"
+	"strings"
+
+	"github.com/spf13/cobra"
+	tmdb "github.com/tendermint/tm-db"
+
+	abcitypes "github.com/tendermint/tendermint/abci/types"
+	tmcfg "github.com/tendermint/tendermint/config"
+	"github.com/tendermint/tendermint/internal/libs/progressbar"
+	ctypes "github.com/tendermint/tendermint/rpc/core/types"
+	"github.com/tendermint/tendermint/state"
+	"github.com/tendermint/tendermint/state/indexer"
+	"github.com/tendermint/tendermint/state/indexer/sink/kv"
+	"github.com/tendermint/tendermint/state/indexer/sink/psql"
+	"github.com/tendermint/tendermint/store"
+	"github.com/tendermint/tendermint/types"
+)
+
+const (
+	reindexFailed = "event re-index failed: "
+)
+
+// ReIndexEventCmd allows re-index the event by given block height interval
+var ReIndexEventCmd = &cobra.Command{
+	Use:   "reindex-event",
+	Short: "reindex events to the event store backends",
+	Long: `
+	reindex-event is an offline tooling to re-index block and tx events to the eventsinks,
+	you can run this command when the event store backend dropped/disconnected or you want to replace the backend.
+	The default start-height is 0, meaning the tooling will start reindex from the base block height(inclusive); and the 
+	default end-height is 0, meaning the tooling will reindex until the latest block height(inclusive). User can omits
+	either or both arguments.
+	`,
+	Example: `
+	tendermint reindex-event
+	tendermint reindex-event --start-height 2
+	tendermint reindex-event --end-height 10
+	tendermint reindex-event --start-height 2 --end-height 10
+	`,
+	Run: func(cmd *cobra.Command, args []string) {
+		bs, ss, err := loadStateAndBlockStore(config)
+		if err != nil {
+			fmt.Println(reindexFailed, err)
+			return
+		}
+
+		if err := checkValidHeight(bs); err != nil {
+			fmt.Println(reindexFailed, err)
+			return
+		}
+
+		es, err := loadEventSinks(config)
+		if err != nil {
+			fmt.Println(reindexFailed, err)
+			return
+		}
+
+		if err = eventReIndex(cmd, es, bs, ss); err != nil {
+			fmt.Println(reindexFailed, err)
+			return
+		}
+
+		fmt.Println("event re-index finished")
+	},
+}
+
+var (
+	startHeight int64
+	endHeight   int64
+)
+
+func init() {
+	ReIndexEventCmd.Flags().Int64Var(&startHeight, "start-height", 0, "the block height would like to start for re-index")
+	ReIndexEventCmd.Flags().Int64Var(&endHeight, "end-height", 0, "the block height would like to finish for re-index")
+}
+
+func loadEventSinks(cfg *tmcfg.Config) ([]indexer.EventSink, error) {
+	// Check duplicated sinks.
+	sinks := map[string]bool{}
+	for _, s := range cfg.TxIndex.Indexer {
+		sl := strings.ToLower(s)
+		if sinks[sl] {
+			return nil, errors.New("found duplicated sinks, please check the tx-index section in the config.toml")
+		}
+		sinks[sl] = true
+	}
+
+	eventSinks := []indexer.EventSink{}
+
+	for k := range sinks {
+		switch k {
+		case string(indexer.NULL):
+			return nil, errors.New("found null event sink, please check the tx-index section in the config.toml")
+		case string(indexer.KV):
+			store, err := tmcfg.DefaultDBProvider(&tmcfg.DBContext{ID: "tx_index", Config: cfg})
+			if err != nil {
+				return nil, err
+			}
+			eventSinks = append(eventSinks, kv.NewEventSink(store))
+		case string(indexer.PSQL):
+			conn := cfg.TxIndex.PsqlConn
+			if conn == "" {
+				return nil, errors.New("the psql connection settings cannot be empty")
+			}
+			es, _, err := psql.NewEventSink(conn, chainID)
+			if err != nil {
+				return nil, err
+			}
+			eventSinks = append(eventSinks, es)
+		default:
+			return nil, errors.New("unsupported event sink type")
+		}
+	}
+
+	if len(eventSinks) == 0 {
+		return nil, errors.New("no proper event sink can do event re-indexing," +
+			" please check the tx-index section in the config.toml")
+	}
+
+	if !indexer.IndexingEnabled(eventSinks) {
+		return nil, fmt.Errorf("no event sink has been enabled")
+	}
+
+	return eventSinks, nil
+}
+
+func loadStateAndBlockStore(cfg *tmcfg.Config) (*store.BlockStore, state.Store, error) {
+	dbType := tmdb.BackendType(cfg.DBBackend)
+
+	// Get BlockStore
+	blockStoreDB, err := tmdb.NewDB("blockstore", dbType, cfg.DBDir())
+	if err != nil {
+		return nil, nil, err
+	}
+	blockStore := store.NewBlockStore(blockStoreDB)
+
+	// Get StateStore
+	stateDB, err := tmdb.NewDB("state", dbType, cfg.DBDir())
+	if err != nil {
+		return nil, nil, err
+	}
+	stateStore := state.NewStore(stateDB)
+
+	return blockStore, stateStore, nil
+}
+
+func eventReIndex(cmd *cobra.Command, es []indexer.EventSink, bs state.BlockStore, ss state.Store) error {
+
+	var bar progressbar.Bar
+	bar.NewOption(startHeight-1, endHeight)
+
+	fmt.Println("start re-indexing events:")
+	defer bar.Finish()
+	for i := startHeight; i <= endHeight; i++ {
+		select {
+		case <-cmd.Context().Done():
+			return fmt.Errorf("event re-index terminated at height %d: %w", i, cmd.Context().Err())
+		default:
+			b := bs.LoadBlock(i)
+			if b == nil {
+				return fmt.Errorf("not able to load block at height %d from the blockstore", i)
+			}
+
+			r, err := ss.LoadABCIResponses(i)
+			if err != nil {
+				return fmt.Errorf("not able to load ABCI Response at height %d from the statestore", i)
+			}
+
+			e := types.EventDataNewBlockHeader{
+				Header:           b.Header,
+				NumTxs:           int64(len(b.Txs)),
+				ResultBeginBlock: *r.BeginBlock,
+				ResultEndBlock:   *r.EndBlock,
+			}
+
+			var batch *indexer.Batch
+			if e.NumTxs > 0 {
+				batch = indexer.NewBatch(e.NumTxs)
+
+				for i, tx := range b.Data.Txs {
+					tr := abcitypes.TxResult{
+						Height: b.Height,
+						Index:  uint32(i),
+						Tx:     tx,
+						Result: *(r.DeliverTxs[i]),
+					}
+
+					_ = batch.Add(&tr)
+				}
+			}
+
+			for _, sink := range es {
+				if err := sink.IndexBlockEvents(e); err != nil {
+					return fmt.Errorf("block event re-index at height %d failed: %w", i, err)
+				}
+
+				if batch != nil {
+					if err := sink.IndexTxEvents(batch.Ops); err != nil {
+						return fmt.Errorf("tx event re-index at height %d failed: %w", i, err)
+					}
+				}
+			}
+		}
+
+		bar.Play(i)
+	}
+
+	return nil
+}
+
+func checkValidHeight(bs state.BlockStore) error {
+	base := bs.Base()
+
+	if startHeight == 0 {
+		startHeight = base
+		fmt.Printf("set the start block height to the base height of the blockstore %d \n", base)
+	}
+
+	if startHeight < base {
+		return fmt.Errorf("%s (requested start height: %d, base height: %d)", ctypes.ErrHeightNotAvailable, startHeight, base)
+	}
+
+	height := bs.Height()
+
+	if startHeight > height {
+		return fmt.Errorf(
+			"%s (requested start height: %d, store height: %d)", ctypes.ErrHeightNotAvailable, startHeight, height)
+	}
+
+	if endHeight == 0 || endHeight > height {
+		endHeight = height
+		fmt.Printf("set the end block height to the latest height of the blockstore %d \n", height)
+	}
+
+	if endHeight < base {
+		return fmt.Errorf(
+			"%s (requested end height: %d, base height: %d)", ctypes.ErrHeightNotAvailable, endHeight, base)
+	}
+
+	if endHeight < startHeight {
+		return fmt.Errorf(
+			"%s (requested the end height: %d is less than the start height: %d)",
+			ctypes.ErrInvalidRequest, startHeight, endHeight)
+	}
+
+	return nil
+}

cmd/tendermint/commands/reindex_event_test.go

@@ -0,0 +1,171 @@
+package commands
+
+import (
+	"context"
+	"errors"
+	"testing"
+
+	"github.com/spf13/cobra"
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/require"
+
+	abcitypes "github.com/tendermint/tendermint/abci/types"
+	tmcfg "github.com/tendermint/tendermint/config"
+	prototmstate "github.com/tendermint/tendermint/proto/tendermint/state"
+	"github.com/tendermint/tendermint/state/indexer"
+	"github.com/tendermint/tendermint/state/mocks"
+	"github.com/tendermint/tendermint/types"
+)
+
+const (
+	height int64 = 10
+	base   int64 = 2
+)
+
+func setupReIndexEventCmd() *cobra.Command {
+	reIndexEventCmd := &cobra.Command{
+		Use: ReIndexEventCmd.Use,
+		Run: func(cmd *cobra.Command, args []string) {},
+	}
+
+	_ = reIndexEventCmd.ExecuteContext(context.Background())
+
+	return reIndexEventCmd
+}
+
+func TestReIndexEventCheckHeight(t *testing.T) {
+	mockBlockStore := &mocks.BlockStore{}
+	mockBlockStore.
+		On("Base").Return(base).
+		On("Height").Return(height)
+
+	testCases := []struct {
+		startHeight int64
+		endHeight   int64
+		validHeight bool
+	}{
+		{0, 0, true},
+		{0, base, true},
+		{0, base - 1, false},
+		{0, height, true},
+		{0, height + 1, true},
+		{0, 0, true},
+		{base - 1, 0, false},
+		{base, 0, true},
+		{base, base, true},
+		{base, base - 1, false},
+		{base, height, true},
+		{base, height + 1, true},
+		{height, 0, true},
+		{height, base, false},
+		{height, height - 1, false},
+		{height, height, true},
+		{height, height + 1, true},
+		{height + 1, 0, false},
+	}
+
+	for _, tc := range testCases {
+		startHeight = tc.startHeight
+		endHeight = tc.endHeight
+
+		err := checkValidHeight(mockBlockStore)
+		if tc.validHeight {
+			require.NoError(t, err)
+		} else {
+			require.Error(t, err)
+		}
+	}
+}
+
+func TestLoadEventSink(t *testing.T) {
+	testCases := []struct {
+		sinks   []string
+		connURL string
+		loadErr bool
+	}{
+		{[]string{}, "", true},
+		{[]string{"NULL"}, "", true},
+		{[]string{"KV"}, "", false},
+		{[]string{"KV", "KV"}, "", true},
+		{[]string{"PSQL"}, "", true},         // true because empty connect url
+		{[]string{"PSQL"}, "wrongUrl", true}, // true because wrong connect url
+		// skip to test PSQL connect with correct url
+		{[]string{"UnsupportedSinkType"}, "wrongUrl", true},
+	}
+
+	for _, tc := range testCases {
+		cfg := tmcfg.TestConfig()
+		cfg.TxIndex.Indexer = tc.sinks
+		cfg.TxIndex.PsqlConn = tc.connURL
+		_, err := loadEventSinks(cfg)
+		if tc.loadErr {
+			require.Error(t, err)
+		} else {
+			require.NoError(t, err)
+		}
+	}
+}
+
+func TestLoadBlockStore(t *testing.T) {
+	bs, ss, err := loadStateAndBlockStore(tmcfg.TestConfig())
+	require.NoError(t, err)
+	require.NotNil(t, bs)
+	require.NotNil(t, ss)
+
+}
+func TestReIndexEvent(t *testing.T) {
+	mockBlockStore := &mocks.BlockStore{}
+	mockStateStore := &mocks.Store{}
+	mockEventSink := &mocks.EventSink{}
+
+	mockBlockStore.
+		On("Base").Return(base).
+		On("Height").Return(height).
+		On("LoadBlock", base).Return(nil).Once().
+		On("LoadBlock", base).Return(&types.Block{Data: types.Data{Txs: types.Txs{make(types.Tx, 1)}}}).
+		On("LoadBlock", height).Return(&types.Block{Data: types.Data{Txs: types.Txs{make(types.Tx, 1)}}})
+
+	mockEventSink.
+		On("Type").Return(indexer.KV).
+		On("IndexBlockEvents", mock.AnythingOfType("types.EventDataNewBlockHeader")).Return(errors.New("")).Once().
+		On("IndexBlockEvents", mock.AnythingOfType("types.EventDataNewBlockHeader")).Return(nil).
+		On("IndexTxEvents", mock.AnythingOfType("[]*types.TxResult")).Return(errors.New("")).Once().
+		On("IndexTxEvents", mock.AnythingOfType("[]*types.TxResult")).Return(nil)
+
+	dtx := abcitypes.ResponseDeliverTx{}
+	abciResp := &prototmstate.ABCIResponses{
+		DeliverTxs: []*abcitypes.ResponseDeliverTx{&dtx},
+		EndBlock:   &abcitypes.ResponseEndBlock{},
+		BeginBlock: &abcitypes.ResponseBeginBlock{},
+	}
+
+	mockStateStore.
+		On("LoadABCIResponses", base).Return(nil, errors.New("")).Once().
+		On("LoadABCIResponses", base).Return(abciResp, nil).
+		On("LoadABCIResponses", height).Return(abciResp, nil)
+
+	testCases := []struct {
+		startHeight int64
+		endHeight   int64
+		reIndexErr  bool
+	}{
+		{base, height, true}, // LoadBlock error
+		{base, height, true}, // LoadABCIResponses error
+		{base, height, true}, // index block event error
+		{base, height, true}, // index tx event error
+		{base, base, false},
+		{height, height, false},
+	}
+
+	for _, tc := range testCases {
+		startHeight = tc.startHeight
+		endHeight = tc.endHeight
+
+		err := eventReIndex(setupReIndexEventCmd(), []indexer.EventSink{mockEventSink}, mockBlockStore, mockStateStore)
+		if tc.reIndexErr {
+			require.Error(t, err)
+		} else {
+			require.NoError(t, err)
+		}
+	}
+}

cmd/tendermint/commands/replay.go

@@ -2,8 +2,7 @@ package commands
 
 import (
 	"github.com/spf13/cobra"
-
-	"github.com/tendermint/tendermint/consensus"
+	"github.com/tendermint/tendermint/internal/consensus"
 )
 
 // ReplayCmd allows replaying of messages from the WAL.

cmd/tendermint/commands/reset_priv_validator.go

@@ -41,14 +41,14 @@ var ResetPrivValidatorCmd = &cobra.Command{
 // XXX: this is totally unsafe.
 // it's only suitable for testnets.
 func resetAll(cmd *cobra.Command, args []string) error {
-	return ResetAll(config.DBDir(), config.P2P.AddrBookFile(), config.PrivValidatorKeyFile(),
-		config.PrivValidatorStateFile(), logger)
+	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 {
-	return resetFilePV(config.PrivValidatorKeyFile(), config.PrivValidatorStateFile(), logger)
+	return resetFilePV(config.PrivValidator.KeyFile(), config.PrivValidator.StateFile(), logger)
 }
 
 // ResetAll removes address book files plus all data, and resets the privValdiator data.

cmd/tendermint/commands/root.go

@@ -2,7 +2,6 @@ package commands
 
 import (
 	"fmt"
-	"os"
 	"strings"
 	"time"
 
@@ -10,14 +9,12 @@ import (
 	"github.com/spf13/viper"
 
 	cfg "github.com/tendermint/tendermint/config"
-	"github.com/tendermint/tendermint/libs/cli"
-	tmflags "github.com/tendermint/tendermint/libs/cli/flags"
 	"github.com/tendermint/tendermint/libs/log"
 )
 
 var (
 	config     = cfg.DefaultConfig()
-	logger     = log.NewTMLogger(log.NewSyncWriter(os.Stdout))
+	logger     = log.MustNewDefaultLogger(log.LogFormatPlain, log.LogLevelInfo, false)
 	ctxTimeout = 4 * time.Second
 )
 
@@ -59,19 +56,11 @@ var RootCmd = &cobra.Command{
 			return err
 		}
 
-		if config.LogFormat == cfg.LogFormatJSON {
-			logger = log.NewTMJSONLogger(log.NewSyncWriter(os.Stdout))
-		}
-
-		logger, err = tmflags.ParseLogLevel(config.LogLevel, logger, cfg.DefaultLogLevel)
+		logger, err = log.NewDefaultLogger(config.LogFormat, config.LogLevel, false)
 		if err != nil {
 			return err
 		}
 
-		if viper.GetBool(cli.TraceFlag) {
-			logger = log.NewTracingLogger(logger)
-		}
-
 		logger = logger.With("module", "main")
 		return nil
 	},

cmd/tendermint/commands/root_test.go

@@ -18,10 +18,6 @@ import (
 	tmos "github.com/tendermint/tendermint/libs/os"
 )
 
-var (
-	defaultRoot = os.ExpandEnv("$HOME/.some/test/dir")
-)
-
 // clearConfig clears env vars, the given root dir, and resets viper.
 func clearConfig(dir string) {
 	if err := os.Unsetenv("TMHOME"); err != nil {
@@ -52,10 +48,10 @@ func testRootCmd() *cobra.Command {
 }
 
 func testSetup(rootDir string, args []string, env map[string]string) error {
-	clearConfig(defaultRoot)
+	clearConfig(rootDir)
 
 	rootCmd := testRootCmd()
-	cmd := cli.PrepareBaseCmd(rootCmd, "TM", defaultRoot)
+	cmd := cli.PrepareBaseCmd(rootCmd, "TM", rootDir)
 
 	// run with the args and env
 	args = append([]string{rootCmd.Use}, args...)
@@ -63,6 +59,7 @@ func testSetup(rootDir string, args []string, env map[string]string) error {
 }
 
 func TestRootHome(t *testing.T) {
+	defaultRoot := t.TempDir()
 	newRoot := filepath.Join(defaultRoot, "something-else")
 	cases := []struct {
 		args []string
@@ -105,6 +102,7 @@ func TestRootFlagsEnv(t *testing.T) {
 		{nil, map[string]string{"TM_LOG_LEVEL": "debug"}, "debug"},       // right env
 	}
 
+	defaultRoot := t.TempDir()
 	for i, tc := range cases {
 		idxString := strconv.Itoa(i)
 
@@ -118,7 +116,7 @@ func TestRootFlagsEnv(t *testing.T) {
 func TestRootConfig(t *testing.T) {
 
 	// write non-default config
-	nonDefaultLogLvl := "abc:debug"
+	nonDefaultLogLvl := "debug"
 	cvals := map[string]string{
 		"log-level": nonDefaultLogLvl,
 	}
@@ -129,12 +127,13 @@ func TestRootConfig(t *testing.T) {
 
 		logLvl string
 	}{
-		{nil, nil, nonDefaultLogLvl},                                     // should load config
-		{[]string{"--log-level=abc:info"}, nil, "abc:info"},              // flag over rides
-		{nil, map[string]string{"TM_LOG_LEVEL": "abc:info"}, "abc:info"}, // env over rides
+		{nil, nil, nonDefaultLogLvl},                             // should load config
+		{[]string{"--log-level=info"}, nil, "info"},              // flag over rides
+		{nil, map[string]string{"TM_LOG_LEVEL": "info"}, "info"}, // env over rides
 	}
 
 	for i, tc := range cases {
+		defaultRoot := t.TempDir()
 		idxString := strconv.Itoa(i)
 		clearConfig(defaultRoot)
 

cmd/tendermint/commands/run_node.go

@@ -11,7 +11,6 @@ import (
 
 	cfg "github.com/tendermint/tendermint/config"
 	tmos "github.com/tendermint/tendermint/libs/os"
-	nm "github.com/tendermint/tendermint/node"
 )
 
 var (
@@ -30,7 +29,7 @@ func AddNodeFlags(cmd *cobra.Command) {
 	// priv val flags
 	cmd.Flags().String(
 		"priv-validator-laddr",
-		config.PrivValidatorListenAddr,
+		config.PrivValidator.ListenAddr,
 		"socket address to listen on for connections from external priv-validator process")
 
 	// node flags
@@ -49,9 +48,7 @@ func AddNodeFlags(cmd *cobra.Command) {
 		"proxy-app",
 		config.ProxyApp,
 		"proxy app address, or one of: 'kvstore',"+
-			" 'persistent_kvstore',"+
-			" 'counter',"+
-			" 'counter_serial' or 'noop' for local testing.")
+			" 'persistent_kvstore' or 'noop' for local testing.")
 	cmd.Flags().String("abci", config.ABCI, "specify abci transport (socket | grpc)")
 
 	// rpc flags
@@ -86,7 +83,10 @@ func AddNodeFlags(cmd *cobra.Command) {
 		config.Consensus.CreateEmptyBlocksInterval.String(),
 		"the possible interval between empty blocks")
 
-	// db flags
+	addDBFlags(cmd)
+}
+
+func addDBFlags(cmd *cobra.Command) {
 	cmd.Flags().String(
 		"db-backend",
 		config.DBBackend,
@@ -99,7 +99,7 @@ func AddNodeFlags(cmd *cobra.Command) {
 
 // NewRunNodeCmd returns the command that allows the CLI to start a node.
 // It can be used with a custom PrivValidator and in-process ABCI application.
-func NewRunNodeCmd(nodeProvider nm.Provider) *cobra.Command {
+func NewRunNodeCmd(nodeProvider cfg.ServiceProvider) *cobra.Command {
 	cmd := &cobra.Command{
 		Use:     "start",
 		Aliases: []string{"node", "run"},
@@ -118,7 +118,7 @@ func NewRunNodeCmd(nodeProvider nm.Provider) *cobra.Command {
 				return fmt.Errorf("failed to start node: %w", err)
 			}
 
-			logger.Info("Started node", "nodeInfo", n.Switch().NodeInfo())
+			logger.Info("started node", "node", n.String())
 
 			// Stop upon receiving SIGTERM or CTRL-C.
 			tmos.TrapSignal(logger, func() {

cmd/tendermint/commands/show_node_id.go

@@ -4,8 +4,6 @@ import (
 	"fmt"
 
 	"github.com/spf13/cobra"
-
-	"github.com/tendermint/tendermint/p2p"
 )
 
 // ShowNodeIDCmd dumps node's ID to the standard output.
@@ -18,11 +16,11 @@ var ShowNodeIDCmd = &cobra.Command{
 }
 
 func showNodeID(cmd *cobra.Command, args []string) error {
-	nodeKey, err := p2p.LoadNodeKey(config.NodeKeyFile())
+	nodeKeyID, err := config.LoadNodeKeyID()
 	if err != nil {
 		return err
 	}
 
-	fmt.Println(nodeKey.ID)
+	fmt.Println(nodeKeyID)
 	return nil
 }

cmd/tendermint/commands/show_validator.go

@@ -30,10 +30,15 @@ func showValidator(cmd *cobra.Command, args []string) error {
 	)
 
 	//TODO: remove once gRPC is the only supported protocol
-	protocol, _ := tmnet.ProtocolAndAddress(config.PrivValidatorListenAddr)
+	protocol, _ := tmnet.ProtocolAndAddress(config.PrivValidator.ListenAddr)
 	switch protocol {
 	case "grpc":
-		pvsc, err := tmgrpc.DialRemoteSigner(config, config.ChainID(), logger)
+		pvsc, err := tmgrpc.DialRemoteSigner(
+			config.PrivValidator,
+			config.ChainID(),
+			logger,
+			config.Instrumentation.Prometheus,
+		)
 		if err != nil {
 			return fmt.Errorf("can't connect to remote validator %w", err)
 		}
@@ -47,12 +52,12 @@ func showValidator(cmd *cobra.Command, args []string) error {
 		}
 	default:
 
-		keyFilePath := config.PrivValidatorKeyFile()
+		keyFilePath := config.PrivValidator.KeyFile()
 		if !tmos.FileExists(keyFilePath) {
 			return fmt.Errorf("private validator file %s does not exist", keyFilePath)
 		}
 
-		pv, err := privval.LoadFilePV(keyFilePath, config.PrivValidatorStateFile())
+		pv, err := privval.LoadFilePV(keyFilePath, config.PrivValidator.StateFile())
 		if err != nil {
 			return err
 		}

cmd/tendermint/commands/testnet.go

@@ -14,10 +14,9 @@ import (
 	cfg "github.com/tendermint/tendermint/config"
 	"github.com/tendermint/tendermint/libs/bytes"
 	tmrand "github.com/tendermint/tendermint/libs/rand"
-	"github.com/tendermint/tendermint/p2p"
+	tmtime "github.com/tendermint/tendermint/libs/time"
 	"github.com/tendermint/tendermint/privval"
 	"github.com/tendermint/tendermint/types"
-	tmtime "github.com/tendermint/tendermint/types/time"
 )
 
 var (
@@ -144,8 +143,8 @@ func testnetFiles(cmd *cobra.Command, args []string) error {
 			return err
 		}
 
-		pvKeyFile := filepath.Join(nodeDir, config.BaseConfig.PrivValidatorKey)
-		pvStateFile := filepath.Join(nodeDir, config.BaseConfig.PrivValidatorState)
+		pvKeyFile := filepath.Join(nodeDir, config.PrivValidator.Key)
+		pvStateFile := filepath.Join(nodeDir, config.PrivValidator.State)
 		pv, err := privval.LoadFilePV(pvKeyFile, pvStateFile)
 		if err != nil {
 			return err
@@ -274,11 +273,11 @@ func persistentPeersArray(config *cfg.Config) ([]string, error) {
 	for i := 0; i < nValidators+nNonValidators; i++ {
 		nodeDir := filepath.Join(outputDir, fmt.Sprintf("%s%d", nodeDirPrefix, i))
 		config.SetRoot(nodeDir)
-		nodeKey, err := p2p.LoadNodeKey(config.NodeKeyFile())
+		nodeKey, err := config.LoadNodeKeyID()
 		if err != nil {
 			return []string{}, err
 		}
-		peers[i] = p2p.IDAddressString(nodeKey.ID, fmt.Sprintf("%s:%d", hostnameOrIP(i), p2pPort))
+		peers[i] = nodeKey.AddressString(fmt.Sprintf("%s:%d", hostnameOrIP(i), p2pPort))
 	}
 	return peers, nil
 }

cmd/tendermint/commands/version.go

@@ -13,6 +13,6 @@ var VersionCmd = &cobra.Command{
 	Use:   "version",
 	Short: "Show version info",
 	Run: func(cmd *cobra.Command, args []string) {
-		fmt.Println(version.TMCoreSemVer)
+		fmt.Println(version.TMVersion)
 	},
 }

cmd/tendermint/main.go

@@ -15,6 +15,7 @@ func main() {
 	rootCmd := cmd.RootCmd
 	rootCmd.AddCommand(
 		cmd.GenValidatorCmd,
+		cmd.ReIndexEventCmd,
 		cmd.InitFilesCmd,
 		cmd.ProbeUpnpCmd,
 		cmd.LightCmd,
@@ -27,6 +28,7 @@ func main() {
 		cmd.ShowNodeIDCmd,
 		cmd.GenNodeKeyCmd,
 		cmd.VersionCmd,
+		cmd.MakeKeyMigrateCommand(),
 		debug.DebugCmd,
 		cli.NewCompletionCmd(rootCmd, true),
 	)
@@ -38,8 +40,8 @@ func main() {
 	//	* Supply a genesis doc file from another source
 	//	* Provide their own DB implementation
 	// can copy this file and use something other than the
-	// DefaultNewNode function
-	nodeFunc := nm.DefaultNewNode
+	// node.NewDefault function
+	nodeFunc := nm.NewDefault
 
 	// Create & start node
 	rootCmd.AddCommand(cmd.NewRunNodeCmd(nodeFunc))

config/config.go

@@ -4,10 +4,16 @@ import (
 	"encoding/hex"
 	"errors"
 	"fmt"
+	"io/ioutil"
 	"net/http"
 	"os"
 	"path/filepath"
 	"time"
+
+	tmjson "github.com/tendermint/tendermint/libs/json"
+	"github.com/tendermint/tendermint/libs/log"
+	tmos "github.com/tendermint/tendermint/libs/os"
+	"github.com/tendermint/tendermint/types"
 )
 
 const (
@@ -16,11 +22,6 @@ const (
 	// FuzzModeDelay is a mode in which we randomly sleep
 	FuzzModeDelay
 
-	// LogFormatPlain is a format for colored text
-	LogFormatPlain = "plain"
-	// LogFormatJSON is a format for json output
-	LogFormatJSON = "json"
-
 	// DefaultLogLevel defines a default log level as INFO.
 	DefaultLogLevel = "info"
 
@@ -28,8 +29,11 @@ const (
 	ModeValidator = "validator"
 	ModeSeed      = "seed"
 
-	BlockchainV0 = "v0"
-	BlockchainV2 = "v2"
+	BlockSyncV0 = "v0"
+	BlockSyncV2 = "v2"
+
+	MempoolV0 = "v0"
+	MempoolV1 = "v1"
 )
 
 // NOTE: Most of the structs & relevant comments + the
@@ -72,10 +76,11 @@ type Config struct {
 	P2P             *P2PConfig             `mapstructure:"p2p"`
 	Mempool         *MempoolConfig         `mapstructure:"mempool"`
 	StateSync       *StateSyncConfig       `mapstructure:"statesync"`
-	FastSync        *FastSyncConfig        `mapstructure:"fastsync"`
+	BlockSync       *BlockSyncConfig       `mapstructure:"fastsync"`
 	Consensus       *ConsensusConfig       `mapstructure:"consensus"`
 	TxIndex         *TxIndexConfig         `mapstructure:"tx-index"`
 	Instrumentation *InstrumentationConfig `mapstructure:"instrumentation"`
+	PrivValidator   *PrivValidatorConfig   `mapstructure:"priv-validator"`
 }
 
 // DefaultConfig returns a default configuration for a Tendermint node
@@ -86,10 +91,11 @@ func DefaultConfig() *Config {
 		P2P:             DefaultP2PConfig(),
 		Mempool:         DefaultMempoolConfig(),
 		StateSync:       DefaultStateSyncConfig(),
-		FastSync:        DefaultFastSyncConfig(),
+		BlockSync:       DefaultBlockSyncConfig(),
 		Consensus:       DefaultConsensusConfig(),
 		TxIndex:         DefaultTxIndexConfig(),
 		Instrumentation: DefaultInstrumentationConfig(),
+		PrivValidator:   DefaultPrivValidatorConfig(),
 	}
 }
 
@@ -108,10 +114,11 @@ func TestConfig() *Config {
 		P2P:             TestP2PConfig(),
 		Mempool:         TestMempoolConfig(),
 		StateSync:       TestStateSyncConfig(),
-		FastSync:        TestFastSyncConfig(),
+		BlockSync:       TestBlockSyncConfig(),
 		Consensus:       TestConsensusConfig(),
 		TxIndex:         TestTxIndexConfig(),
 		Instrumentation: TestInstrumentationConfig(),
+		PrivValidator:   DefaultPrivValidatorConfig(),
 	}
 }
 
@@ -122,6 +129,7 @@ func (cfg *Config) SetRoot(root string) *Config {
 	cfg.P2P.RootDir = root
 	cfg.Mempool.RootDir = root
 	cfg.Consensus.RootDir = root
+	cfg.PrivValidator.RootDir = root
 	return cfg
 }
 
@@ -143,7 +151,7 @@ func (cfg *Config) ValidateBasic() error {
 	if err := cfg.StateSync.ValidateBasic(); err != nil {
 		return fmt.Errorf("error in [statesync] section: %w", err)
 	}
-	if err := cfg.FastSync.ValidateBasic(); err != nil {
+	if err := cfg.BlockSync.ValidateBasic(); err != nil {
 		return fmt.Errorf("error in [fastsync] section: %w", err)
 	}
 	if err := cfg.Consensus.ValidateBasic(); err != nil {
@@ -189,6 +197,7 @@ type BaseConfig struct { //nolint: maligned
 	// If this node is many blocks behind the tip of the chain, FastSync
 	// allows them to catchup quickly by downloading blocks in parallel
 	// and verifying their commits
+	// TODO: This should be moved to the blocksync config
 	FastSyncMode bool `mapstructure:"fast-sync"`
 
 	// Database backend: goleveldb | cleveldb | boltdb | rocksdb
@@ -224,26 +233,6 @@ type BaseConfig struct { //nolint: maligned
 	// Path to the JSON file containing the initial validator set and other meta data
 	Genesis string `mapstructure:"genesis-file"`
 
-	// Path to the JSON file containing the private key to use as a validator in the consensus protocol
-	PrivValidatorKey string `mapstructure:"priv-validator-key-file"`
-
-	// Path to the JSON file containing the last sign state of a validator
-	PrivValidatorState string `mapstructure:"priv-validator-state-file"`
-
-	// TCP or UNIX socket address for Tendermint to listen on for
-	// connections from an external PrivValidator process
-	PrivValidatorListenAddr string `mapstructure:"priv-validator-laddr"`
-
-	// Client certificate generated while creating needed files for secure connection.
-	// If a remote validator address is provided but no certificate, the connection will be insecure
-	PrivValidatorClientCertificate string `mapstructure:"priv-validator-client-certificate-file"`
-
-	// Client key generated while creating certificates for secure connection
-	PrivValidatorClientKey string `mapstructure:"priv-validator-client-key-file"`
-
-	// Path Root Certificate Authority used to sign both client and server certificates
-	PrivValidatorRootCA string `mapstructure:"priv-validator-root-ca-file"`
-
 	// A JSON file containing the private key to use for p2p authenticated encryption
 	NodeKey string `mapstructure:"node-key-file"`
 
@@ -258,20 +247,18 @@ type BaseConfig struct { //nolint: maligned
 // DefaultBaseConfig returns a default base configuration for a Tendermint node
 func DefaultBaseConfig() BaseConfig {
 	return BaseConfig{
-		Genesis:            defaultGenesisJSONPath,
-		PrivValidatorKey:   defaultPrivValKeyPath,
-		PrivValidatorState: defaultPrivValStatePath,
-		NodeKey:            defaultNodeKeyPath,
-		Mode:               defaultMode,
-		Moniker:            defaultMoniker,
-		ProxyApp:           "tcp://127.0.0.1:26658",
-		ABCI:               "socket",
-		LogLevel:           DefaultLogLevel,
-		LogFormat:          LogFormatPlain,
-		FastSyncMode:       true,
-		FilterPeers:        false,
-		DBBackend:          "goleveldb",
-		DBPath:             "data",
+		Genesis:      defaultGenesisJSONPath,
+		NodeKey:      defaultNodeKeyPath,
+		Mode:         defaultMode,
+		Moniker:      defaultMoniker,
+		ProxyApp:     "tcp://127.0.0.1:26658",
+		ABCI:         "socket",
+		LogLevel:     DefaultLogLevel,
+		LogFormat:    log.LogFormatPlain,
+		FastSyncMode: true,
+		FilterPeers:  false,
+		DBBackend:    "goleveldb",
+		DBPath:       "data",
 	}
 }
 
@@ -295,72 +282,147 @@ func (cfg BaseConfig) GenesisFile() string {
 	return rootify(cfg.Genesis, cfg.RootDir)
 }
 
-// PrivValidatorClientKeyFile returns the full path to the priv_validator_key.json file
-func (cfg BaseConfig) PrivValidatorClientKeyFile() string {
-	return rootify(cfg.PrivValidatorClientKey, cfg.RootDir)
-}
-
-// PrivValidatorClientCertificateFile returns the full path to the priv_validator_key.json file
-func (cfg BaseConfig) PrivValidatorClientCertificateFile() string {
-	return rootify(cfg.PrivValidatorClientCertificate, cfg.RootDir)
-}
-
-// PrivValidatorCertificateAuthorityFile returns the full path to the priv_validator_key.json file
-func (cfg BaseConfig) PrivValidatorRootCAFile() string {
-	return rootify(cfg.PrivValidatorRootCA, cfg.RootDir)
-}
-
-// PrivValidatorKeyFile returns the full path to the priv_validator_key.json file
-func (cfg BaseConfig) PrivValidatorKeyFile() string {
-	return rootify(cfg.PrivValidatorKey, cfg.RootDir)
-}
-
-// PrivValidatorFile returns the full path to the priv_validator_state.json file
-func (cfg BaseConfig) PrivValidatorStateFile() string {
-	return rootify(cfg.PrivValidatorState, cfg.RootDir)
-}
-
 // NodeKeyFile returns the full path to the node_key.json file
 func (cfg BaseConfig) NodeKeyFile() string {
 	return rootify(cfg.NodeKey, cfg.RootDir)
 }
 
+// LoadNodeKey loads NodeKey located in filePath.
+func (cfg BaseConfig) LoadNodeKeyID() (types.NodeID, error) {
+	jsonBytes, err := ioutil.ReadFile(cfg.NodeKeyFile())
+	if err != nil {
+		return "", err
+	}
+	nodeKey := types.NodeKey{}
+	err = tmjson.Unmarshal(jsonBytes, &nodeKey)
+	if err != nil {
+		return "", err
+	}
+	nodeKey.ID = types.NodeIDFromPubKey(nodeKey.PubKey())
+	return nodeKey.ID, nil
+}
+
+// LoadOrGenNodeKey attempts to load the NodeKey from the given filePath. If
+// the file does not exist, it generates and saves a new NodeKey.
+func (cfg BaseConfig) LoadOrGenNodeKeyID() (types.NodeID, error) {
+	if tmos.FileExists(cfg.NodeKeyFile()) {
+		nodeKey, err := cfg.LoadNodeKeyID()
+		if err != nil {
+			return "", err
+		}
+		return nodeKey, nil
+	}
+
+	nodeKey := types.GenNodeKey()
+
+	if err := nodeKey.SaveAs(cfg.NodeKeyFile()); err != nil {
+		return "", err
+	}
+
+	return nodeKey.ID, nil
+}
+
 // DBDir returns the full path to the database directory
 func (cfg BaseConfig) DBDir() string {
 	return rootify(cfg.DBPath, cfg.RootDir)
 }
 
-func (cfg *BaseConfig) ArePrivValidatorClientSecurityOptionsPresent() bool {
-	switch {
-	case cfg.PrivValidatorRootCA == "":
-		return false
-	case cfg.PrivValidatorClientKey == "":
-		return false
-	case cfg.PrivValidatorClientCertificate == "":
-		return false
-	default:
-		return true
-	}
-}
-
 // ValidateBasic performs basic validation (checking param bounds, etc.) and
 // returns an error if any check fails.
 func (cfg BaseConfig) ValidateBasic() error {
 	switch cfg.LogFormat {
-	case LogFormatPlain, LogFormatJSON:
+	case log.LogFormatJSON, log.LogFormatText, log.LogFormatPlain:
 	default:
-		return errors.New("unknown log format (must be 'plain' or 'json')")
+		return errors.New("unknown log format (must be 'plain', 'text' or 'json')")
 	}
+
 	switch cfg.Mode {
 	case ModeFull, ModeValidator, ModeSeed:
 	case "":
 		return errors.New("no mode has been set")
+
 	default:
 		return fmt.Errorf("unknown mode: %v", cfg.Mode)
 	}
+
 	return nil
 }
 
+//-----------------------------------------------------------------------------
+// PrivValidatorConfig
+
+// PrivValidatorConfig defines the configuration parameters for running a validator
+type PrivValidatorConfig struct {
+	RootDir string `mapstructure:"home"`
+
+	// Path to the JSON file containing the private key to use as a validator in the consensus protocol
+	Key string `mapstructure:"key-file"`
+
+	// Path to the JSON file containing the last sign state of a validator
+	State string `mapstructure:"state-file"`
+
+	// TCP or UNIX socket address for Tendermint to listen on for
+	// connections from an external PrivValidator process
+	ListenAddr string `mapstructure:"laddr"`
+
+	// Client certificate generated while creating needed files for secure connection.
+	// If a remote validator address is provided but no certificate, the connection will be insecure
+	ClientCertificate string `mapstructure:"client-certificate-file"`
+
+	// Client key generated while creating certificates for secure connection
+	ClientKey string `mapstructure:"client-key-file"`
+
+	// Path Root Certificate Authority used to sign both client and server certificates
+	RootCA string `mapstructure:"root-ca-file"`
+}
+
+// DefaultBaseConfig returns a default private validator configuration
+// for a Tendermint node.
+func DefaultPrivValidatorConfig() *PrivValidatorConfig {
+	return &PrivValidatorConfig{
+		Key:   defaultPrivValKeyPath,
+		State: defaultPrivValStatePath,
+	}
+}
+
+// ClientKeyFile returns the full path to the priv_validator_key.json file
+func (cfg *PrivValidatorConfig) ClientKeyFile() string {
+	return rootify(cfg.ClientKey, cfg.RootDir)
+}
+
+// ClientCertificateFile returns the full path to the priv_validator_key.json file
+func (cfg *PrivValidatorConfig) ClientCertificateFile() string {
+	return rootify(cfg.ClientCertificate, cfg.RootDir)
+}
+
+// CertificateAuthorityFile returns the full path to the priv_validator_key.json file
+func (cfg *PrivValidatorConfig) RootCAFile() string {
+	return rootify(cfg.RootCA, cfg.RootDir)
+}
+
+// KeyFile returns the full path to the priv_validator_key.json file
+func (cfg *PrivValidatorConfig) KeyFile() string {
+	return rootify(cfg.Key, cfg.RootDir)
+}
+
+// StateFile returns the full path to the priv_validator_state.json file
+func (cfg *PrivValidatorConfig) StateFile() string {
+	return rootify(cfg.State, cfg.RootDir)
+}
+
+func (cfg *PrivValidatorConfig) AreSecurityOptionsPresent() bool {
+	switch {
+	case cfg.RootCA == "":
+		return false
+	case cfg.ClientKey == "":
+		return false
+	case cfg.ClientCertificate == "":
+		return false
+	default:
+		return true
+	}
+}
+
 //-----------------------------------------------------------------------------
 // RPCConfig
 
@@ -385,6 +447,7 @@ type RPCConfig struct {
 
 	// TCP or UNIX socket address for the gRPC server to listen on
 	// NOTE: This server only supports /broadcast_tx_commit
+	// Deprecated: gRPC in the RPC layer of Tendermint will be removed in 0.36.
 	GRPCListenAddress string `mapstructure:"grpc-laddr"`
 
 	// Maximum number of simultaneous connections.
@@ -392,6 +455,7 @@ type RPCConfig struct {
 	// If you want to accept a larger number than the default, make sure
 	// you increase your OS limits.
 	// 0 - unlimited.
+	// Deprecated: gRPC in the RPC layer of Tendermint will be removed in 0.36.
 	GRPCMaxOpenConnections int `mapstructure:"grpc-max-open-connections"`
 
 	// Activate unsafe RPC commands like /dial-persistent-peers and /unsafe-flush-mempool
@@ -715,43 +779,69 @@ func (cfg *P2PConfig) ValidateBasic() error {
 //-----------------------------------------------------------------------------
 // MempoolConfig
 
-// MempoolConfig defines the configuration options for the Tendermint mempool
+// MempoolConfig defines the configuration options for the Tendermint mempool.
 type MempoolConfig struct {
+	Version   string `mapstructure:"version"`
 	RootDir   string `mapstructure:"home"`
 	Recheck   bool   `mapstructure:"recheck"`
 	Broadcast bool   `mapstructure:"broadcast"`
+
 	// Maximum number of transactions in the mempool
 	Size int `mapstructure:"size"`
+
 	// Limit the total size of all txs in the mempool.
 	// This only accounts for raw transactions (e.g. given 1MB transactions and
 	// max-txs-bytes=5MB, mempool will only accept 5 transactions).
 	MaxTxsBytes int64 `mapstructure:"max-txs-bytes"`
+
 	// Size of the cache (used to filter transactions we saw earlier) in transactions
 	CacheSize int `mapstructure:"cache-size"`
+
 	// Do not remove invalid transactions from the cache (default: false)
 	// Set to true if it's not possible for any invalid transaction to become
 	// valid again in the future.
 	KeepInvalidTxsInCache bool `mapstructure:"keep-invalid-txs-in-cache"`
+
 	// Maximum size of a single transaction
 	// NOTE: the max size of a tx transmitted over the network is {max-tx-bytes}.
 	MaxTxBytes int `mapstructure:"max-tx-bytes"`
+
 	// Maximum size of a batch of transactions to send to a peer
 	// Including space needed by encoding (one varint per transaction).
 	// XXX: Unused due to https://github.com/tendermint/tendermint/issues/5796
 	MaxBatchBytes int `mapstructure:"max-batch-bytes"`
+
+	// TTLDuration, if non-zero, defines the maximum amount of time a transaction
+	// can exist for in the mempool.
+	//
+	// Note, if TTLNumBlocks is also defined, a transaction will be removed if it
+	// has existed in the mempool at least TTLNumBlocks number of blocks or if it's
+	// insertion time into the mempool is beyond TTLDuration.
+	TTLDuration time.Duration `mapstructure:"ttl-duration"`
+
+	// TTLNumBlocks, if non-zero, defines the maximum number of blocks a transaction
+	// can exist for in the mempool.
+	//
+	// Note, if TTLDuration is also defined, a transaction will be removed if it
+	// has existed in the mempool at least TTLNumBlocks number of blocks or if
+	// it's insertion time into the mempool is beyond TTLDuration.
+	TTLNumBlocks int64 `mapstructure:"ttl-num-blocks"`
 }
 
-// DefaultMempoolConfig returns a default configuration for the Tendermint mempool
+// DefaultMempoolConfig returns a default configuration for the Tendermint mempool.
 func DefaultMempoolConfig() *MempoolConfig {
 	return &MempoolConfig{
+		Version:   MempoolV1,
 		Recheck:   true,
 		Broadcast: true,
 		// Each signature verification takes .5ms, Size reduced until we implement
 		// ABCI Recheck
-		Size:        5000,
-		MaxTxsBytes: 1024 * 1024 * 1024, // 1GB
-		CacheSize:   10000,
-		MaxTxBytes:  1024 * 1024, // 1MB
+		Size:         5000,
+		MaxTxsBytes:  1024 * 1024 * 1024, // 1GB
+		CacheSize:    10000,
+		MaxTxBytes:   1024 * 1024, // 1MB
+		TTLDuration:  0 * time.Second,
+		TTLNumBlocks: 0,
 	}
 }
 
@@ -777,6 +867,13 @@ func (cfg *MempoolConfig) ValidateBasic() error {
 	if cfg.MaxTxBytes < 0 {
 		return errors.New("max-tx-bytes can't be negative")
 	}
+	if cfg.TTLDuration < 0 {
+		return errors.New("ttl-duration can't be negative")
+	}
+	if cfg.TTLNumBlocks < 0 {
+		return errors.New("ttl-num-blocks can't be negative")
+	}
+
 	return nil
 }
 
@@ -785,13 +882,15 @@ func (cfg *MempoolConfig) ValidateBasic() error {
 
 // StateSyncConfig defines the configuration for the Tendermint state sync service
 type StateSyncConfig struct {
-	Enable        bool          `mapstructure:"enable"`
-	TempDir       string        `mapstructure:"temp-dir"`
-	RPCServers    []string      `mapstructure:"rpc-servers"`
-	TrustPeriod   time.Duration `mapstructure:"trust-period"`
-	TrustHeight   int64         `mapstructure:"trust-height"`
-	TrustHash     string        `mapstructure:"trust-hash"`
-	DiscoveryTime time.Duration `mapstructure:"discovery-time"`
+	Enable              bool          `mapstructure:"enable"`
+	TempDir             string        `mapstructure:"temp-dir"`
+	RPCServers          []string      `mapstructure:"rpc-servers"`
+	TrustPeriod         time.Duration `mapstructure:"trust-period"`
+	TrustHeight         int64         `mapstructure:"trust-height"`
+	TrustHash           string        `mapstructure:"trust-hash"`
+	DiscoveryTime       time.Duration `mapstructure:"discovery-time"`
+	ChunkRequestTimeout time.Duration `mapstructure:"chunk-request-timeout"`
+	Fetchers            int32         `mapstructure:"fetchers"`
 }
 
 func (cfg *StateSyncConfig) TrustHashBytes() []byte {
@@ -806,12 +905,14 @@ func (cfg *StateSyncConfig) TrustHashBytes() []byte {
 // DefaultStateSyncConfig returns a default configuration for the state sync service
 func DefaultStateSyncConfig() *StateSyncConfig {
 	return &StateSyncConfig{
-		TrustPeriod:   168 * time.Hour,
-		DiscoveryTime: 15 * time.Second,
+		TrustPeriod:         168 * time.Hour,
+		DiscoveryTime:       15 * time.Second,
+		ChunkRequestTimeout: 15 * time.Second,
+		Fetchers:            4,
 	}
 }
 
-// TestFastSyncConfig returns a default configuration for the state sync service
+// TestStateSyncConfig returns a default configuration for the state sync service
 func TestStateSyncConfig() *StateSyncConfig {
 	return DefaultStateSyncConfig()
 }
@@ -822,14 +923,17 @@ func (cfg *StateSyncConfig) ValidateBasic() error {
 		if len(cfg.RPCServers) == 0 {
 			return errors.New("rpc-servers is required")
 		}
+
 		if len(cfg.RPCServers) < 2 {
 			return errors.New("at least two rpc-servers entries is required")
 		}
+
 		for _, server := range cfg.RPCServers {
 			if len(server) == 0 {
 				return errors.New("found empty rpc-servers entry")
 			}
 		}
+
 		if cfg.DiscoveryTime != 0 && cfg.DiscoveryTime < 5*time.Second {
 			return errors.New("discovery time must be 0s or greater than five seconds")
 		}
@@ -837,49 +941,60 @@ func (cfg *StateSyncConfig) ValidateBasic() error {
 		if cfg.TrustPeriod <= 0 {
 			return errors.New("trusted-period is required")
 		}
+
 		if cfg.TrustHeight <= 0 {
 			return errors.New("trusted-height is required")
 		}
+
 		if len(cfg.TrustHash) == 0 {
 			return errors.New("trusted-hash is required")
 		}
+
 		_, err := hex.DecodeString(cfg.TrustHash)
 		if err != nil {
 			return fmt.Errorf("invalid trusted-hash: %w", err)
 		}
+
+		if cfg.ChunkRequestTimeout < 5*time.Second {
+			return errors.New("chunk-request-timeout must be at least 5 seconds")
+		}
+
+		if cfg.Fetchers <= 0 {
+			return errors.New("fetchers is required")
+		}
 	}
+
 	return nil
 }
 
 //-----------------------------------------------------------------------------
-// FastSyncConfig
 
-// FastSyncConfig defines the configuration for the Tendermint fast sync service
-type FastSyncConfig struct {
+// BlockSyncConfig (formerly known as FastSync) defines the configuration for the Tendermint block sync service
+type BlockSyncConfig struct {
 	Version string `mapstructure:"version"`
 }
 
-// DefaultFastSyncConfig returns a default configuration for the fast sync service
-func DefaultFastSyncConfig() *FastSyncConfig {
-	return &FastSyncConfig{
-		Version: BlockchainV0,
+// DefaultBlockSyncConfig returns a default configuration for the block sync service
+func DefaultBlockSyncConfig() *BlockSyncConfig {
+	return &BlockSyncConfig{
+		Version: BlockSyncV0,
 	}
 }
 
-// TestFastSyncConfig returns a default configuration for the fast sync.
-func TestFastSyncConfig() *FastSyncConfig {
-	return DefaultFastSyncConfig()
+// TestBlockSyncConfig returns a default configuration for the block sync.
+func TestBlockSyncConfig() *BlockSyncConfig {
+	return DefaultBlockSyncConfig()
 }
 
 // ValidateBasic performs basic validation.
-func (cfg *FastSyncConfig) ValidateBasic() error {
+func (cfg *BlockSyncConfig) ValidateBasic() error {
 	switch cfg.Version {
-	case BlockchainV0:
-		return nil
-	case BlockchainV2:
+	case BlockSyncV0:
 		return nil
+	case BlockSyncV2:
+		return errors.New("blocksync version v2 is no longer supported. Please use v0")
 	default:
-		return fmt.Errorf("unknown fastsync version %s", cfg.Version)
+		return fmt.Errorf("unknown blocksync version %s", cfg.Version)
 	}
 }
 
@@ -1058,19 +1173,25 @@ func (cfg *ConsensusConfig) ValidateBasic() error {
 // TxIndexConfig defines the configuration for the transaction indexer,
 // including composite keys to index.
 type TxIndexConfig struct {
-	// What indexer to use for transactions
+	// The backend database list to back the indexer.
+	// If list contains `null`, meaning no indexer service will be used.
 	//
 	// Options:
-	//   1) "null"
+	//   1) "null" - no indexer services.
 	//   2) "kv" (default) - the simplest possible indexer,
 	//      backed by key-value storage (defaults to levelDB; see DBBackend).
-	Indexer string `mapstructure:"indexer"`
+	//   3) "psql" - the indexer services backed by PostgreSQL.
+	Indexer []string `mapstructure:"indexer"`
+
+	// The PostgreSQL connection configuration, the connection format:
+	// postgresql://<user>:<password>@<host>:<port>/<db>?<opts>
+	PsqlConn string `mapstructure:"psql-conn"`
 }
 
 // DefaultTxIndexConfig returns a default configuration for the transaction indexer.
 func DefaultTxIndexConfig() *TxIndexConfig {
 	return &TxIndexConfig{
-		Indexer: "kv",
+		Indexer: []string{"kv"},
 	}
 }
 

config/config_test.go

@@ -125,13 +125,13 @@ func TestStateSyncConfigValidateBasic(t *testing.T) {
 	require.NoError(t, cfg.ValidateBasic())
 }
 
-func TestFastSyncConfigValidateBasic(t *testing.T) {
-	cfg := TestFastSyncConfig()
+func TestBlockSyncConfigValidateBasic(t *testing.T) {
+	cfg := TestBlockSyncConfig()
 	assert.NoError(t, cfg.ValidateBasic())
 
 	// tamper with version
 	cfg.Version = "v2"
-	assert.NoError(t, cfg.ValidateBasic())
+	assert.Error(t, cfg.ValidateBasic())
 
 	cfg.Version = "invalid"
 	assert.Error(t, cfg.ValidateBasic())

config/db.go

@@ -0,0 +1,26 @@
+package config
+
+import (
+	"github.com/tendermint/tendermint/libs/log"
+	"github.com/tendermint/tendermint/libs/service"
+	db "github.com/tendermint/tm-db"
+)
+
+// ServiceProvider takes a config and a logger and returns a ready to go Node.
+type ServiceProvider func(*Config, log.Logger) (service.Service, error)
+
+// DBContext specifies config information for loading a new DB.
+type DBContext struct {
+	ID     string
+	Config *Config
+}
+
+// DBProvider takes a DBContext and returns an instantiated DB.
+type DBProvider func(*DBContext) (db.DB, error)
+
+// DefaultDBProvider returns a database using the DBBackend and DBDir
+// specified in the Config.
+func DefaultDBProvider(ctx *DBContext) (db.DB, error) {
+	dbType := db.BackendType(ctx.Config.DBBackend)
+	return db.NewDB(ctx.ID, dbType, ctx.Config.DBDir())
+}

config/toml.go

@@ -137,27 +137,6 @@ log-format = "{{ .BaseConfig.LogFormat }}"
 # Path to the JSON file containing the initial validator set and other meta data
 genesis-file = "{{ js .BaseConfig.Genesis }}"
 
-# Path to the JSON file containing the private key to use as a validator in the consensus protocol
-priv-validator-key-file = "{{ js .BaseConfig.PrivValidatorKey }}"
-
-# Path to the JSON file containing the last sign state of a validator
-priv-validator-state-file = "{{ js .BaseConfig.PrivValidatorState }}"
-
-# TCP or UNIX socket address for Tendermint to listen on for
-# connections from an external PrivValidator process
-# when the listenAddr is prefixed with grpc instead of tcp it will use the gRPC Client
-priv-validator-laddr = "{{ .BaseConfig.PrivValidatorListenAddr }}"
-
-# Client certificate generated while creating needed files for secure connection.
-# If a remote validator address is provided but no certificate, the connection will be insecure
-priv-validator-client-certificate-file = "{{ js .BaseConfig.PrivValidatorClientCertificate }}"
-
-# Client key generated while creating certificates for secure connection
-priv-validator-client-key-file = "{{ js .BaseConfig.PrivValidatorClientKey }}"
-
-# Path Root Certificate Authority used to sign both client and server certificates
-priv-validator-certificate-authority = "{{ js .BaseConfig.PrivValidatorRootCA }}"
-
 # Path to the JSON file containing the private key to use for node authentication in the p2p protocol
 node-key-file = "{{ js .BaseConfig.NodeKey }}"
 
@@ -168,6 +147,34 @@ abci = "{{ .BaseConfig.ABCI }}"
 # so the app can decide if we should keep the connection or not
 filter-peers = {{ .BaseConfig.FilterPeers }}
 
+
+#######################################################
+###       Priv Validator Configuration              ###
+#######################################################
+[priv-validator]
+
+# Path to the JSON file containing the private key to use as a validator in the consensus protocol
+key-file = "{{ js .PrivValidator.Key }}"
+
+# Path to the JSON file containing the last sign state of a validator
+state-file = "{{ js .PrivValidator.State }}"
+
+# TCP or UNIX socket address for Tendermint to listen on for
+# connections from an external PrivValidator process
+# when the listenAddr is prefixed with grpc instead of tcp it will use the gRPC Client
+laddr = "{{ .PrivValidator.ListenAddr }}"
+
+# Client certificate generated while creating needed files for secure connection.
+# If a remote validator address is provided but no certificate, the connection will be insecure
+client-certificate-file = "{{ js .PrivValidator.ClientCertificate }}"
+
+# Client key generated while creating certificates for secure connection
+validator-client-key-file = "{{ js .PrivValidator.ClientKey }}"
+
+# Path Root Certificate Authority used to sign both client and server certificates
+certificate-authority = "{{ js .PrivValidator.RootCA }}"
+
+
 #######################################################################
 ###                 Advanced Configuration Options                  ###
 #######################################################################
@@ -193,6 +200,7 @@ cors-allowed-headers = [{{ range .RPC.CORSAllowedHeaders }}{{ printf "%q, " . }}
 
 # TCP or UNIX socket address for the gRPC server to listen on
 # NOTE: This server only supports /broadcast_tx_commit
+# Deprecated gRPC  in the RPC layer of Tendermint will be deprecated in 0.36.
 grpc-laddr = "{{ .RPC.GRPCListenAddress }}"
 
 # Maximum number of simultaneous connections.
@@ -202,6 +210,7 @@ grpc-laddr = "{{ .RPC.GRPCListenAddress }}"
 # 0 - unlimited.
 # Should be < {ulimit -Sn} - {MaxNumInboundPeers} - {MaxNumOutboundPeers} - {N of wal, db and other open files}
 # 1024 - 40 - 10 - 50 = 924 = ~900
+# Deprecated gRPC  in the RPC layer of Tendermint will be deprecated in 0.36.
 grpc-max-open-connections = {{ .RPC.GRPCMaxOpenConnections }}
 
 # Activate unsafe RPC commands like /dial-seeds and /unsafe-flush-mempool
@@ -273,7 +282,8 @@ laddr = "{{ .P2P.ListenAddress }}"
 # Address to advertise to peers for them to dial
 # If empty, will use the same port as the laddr,
 # and will introspect on the listener or use UPnP
-# to figure out the address.
+# to figure out the address. ip and port are required
+# example: 159.89.10.97:26656
 external-address = "{{ .P2P.ExternalAddress }}"
 
 # Comma separated list of seed nodes to connect to
@@ -341,6 +351,7 @@ recv-rate = {{ .P2P.RecvRate }}
 pex = {{ .P2P.PexReactor }}
 
 # Comma separated list of peer IDs to keep private (will not be gossiped to other peers)
+# Warning: IPs will be exposed at /net_info, for more information https://github.com/tendermint/tendermint/issues/3055
 private-peer-ids = "{{ .P2P.PrivatePeerIDs }}"
 
 # Toggle to disable guard against peers connecting from the same ip.
@@ -355,6 +366,11 @@ dial-timeout = "{{ .P2P.DialTimeout }}"
 #######################################################
 [mempool]
 
+# Mempool version to use:
+#   1) "v0" - The legacy non-prioritized mempool reactor.
+#   2) "v1" (default) - The prioritized mempool reactor.
+version = "{{ .Mempool.Version }}"
+
 recheck = {{ .Mempool.Recheck }}
 broadcast = {{ .Mempool.Broadcast }}
 
@@ -383,6 +399,22 @@ max-tx-bytes = {{ .Mempool.MaxTxBytes }}
 # XXX: Unused due to https://github.com/tendermint/tendermint/issues/5796
 max-batch-bytes = {{ .Mempool.MaxBatchBytes }}
 
+# ttl-duration, if non-zero, defines the maximum amount of time a transaction
+# can exist for in the mempool.
+#
+# Note, if ttl-num-blocks is also defined, a transaction will be removed if it
+# has existed in the mempool at least ttl-num-blocks number of blocks or if it's
+# insertion time into the mempool is beyond ttl-duration.
+ttl-duration = "{{ .Mempool.TTLDuration }}"
+
+# ttl-num-blocks, if non-zero, defines the maximum number of blocks a transaction
+# can exist for in the mempool.
+#
+# Note, if ttl-duration is also defined, a transaction will be removed if it
+# has existed in the mempool at least ttl-num-blocks number of blocks or if
+# it's insertion time into the mempool is beyond ttl-duration.
+ttl-num-blocks = {{ .Mempool.TTLNumBlocks }}
+
 #######################################################
 ###         State Sync Configuration Options        ###
 #######################################################
@@ -412,15 +444,22 @@ discovery-time = "{{ .StateSync.DiscoveryTime }}"
 # Will create a new, randomly named directory within, and remove it when done.
 temp-dir = "{{ .StateSync.TempDir }}"
 
+# The timeout duration before re-requesting a chunk, possibly from a different
+# peer (default: 15 seconds).
+chunk-request-timeout = "{{ .StateSync.ChunkRequestTimeout }}"
+
+# The number of concurrent chunk and block fetchers to run (default: 4).
+fetchers = "{{ .StateSync.Fetchers }}"
+
 #######################################################
-###       Fast Sync Configuration Connections       ###
+###       Block Sync Configuration Connections       ###
 #######################################################
 [fastsync]
 
-# Fast Sync version to use:
-#   1) "v0" (default) - the legacy fast sync implementation
-#   2) "v2" - complete redesign of v0, optimized for testability & readability
-version = "{{ .FastSync.Version }}"
+# Block Sync version to use:
+#   1) "v0" (default) - the legacy block sync implementation
+#   2) "v2" - DEPRECATED, please use v0
+version = "{{ .BlockSync.Version }}"
 
 #######################################################
 ###         Consensus Configuration Options         ###
@@ -468,7 +507,8 @@ peer-query-maj23-sleep-duration = "{{ .Consensus.PeerQueryMaj23SleepDuration }}"
 #######################################################
 [tx-index]
 
-# What indexer to use for transactions
+# The backend database list to back the indexer.
+# If list contains null, meaning no indexer service will be used.
 #
 # The application will set which txs to index. In some cases a node operator will be able
 # to decide which txs to index based on configuration set in the application.
@@ -477,7 +517,12 @@ peer-query-maj23-sleep-duration = "{{ .Consensus.PeerQueryMaj23SleepDuration }}"
 #   1) "null"
 #   2) "kv" (default) - the simplest possible indexer, backed by key-value storage (defaults to levelDB; see DBBackend).
 # 		- When "kv" is chosen "tx.height" and "tx.hash" will always be indexed.
-indexer = "{{ .TxIndex.Indexer }}"
+#   3) "psql" - the indexer services backed by PostgreSQL.
+indexer = [{{ range $i, $e := .TxIndex.Indexer }}{{if $i}}, {{end}}{{ printf "%q" $e}}{{end}}]
+
+# The PostgreSQL connection configuration, the connection format:
+#   postgresql://<user>:<password>@<host>:<port>/<db>?<opts>
+psql-conn = "{{ .TxIndex.PsqlConn }}"
 
 #######################################################
 ###       Instrumentation Configuration Options     ###
@@ -522,10 +567,10 @@ func ResetTestRootWithChainID(testName string, chainID string) *Config {
 		panic(err)
 	}
 
-	baseConfig := DefaultBaseConfig()
-	genesisFilePath := filepath.Join(rootDir, baseConfig.Genesis)
-	privKeyFilePath := filepath.Join(rootDir, baseConfig.PrivValidatorKey)
-	privStateFilePath := filepath.Join(rootDir, baseConfig.PrivValidatorState)
+	conf := DefaultConfig()
+	genesisFilePath := filepath.Join(rootDir, conf.Genesis)
+	privKeyFilePath := filepath.Join(rootDir, conf.PrivValidator.Key)
+	privStateFilePath := filepath.Join(rootDir, conf.PrivValidator.State)
 
 	// Write default config file if missing.
 	writeDefaultConfigFileIfNone(rootDir)

config/toml_test.go

@@ -63,7 +63,8 @@ func TestEnsureTestRoot(t *testing.T) {
 
 	// TODO: make sure the cfg returned and testconfig are the same!
 	baseConfig := DefaultBaseConfig()
-	ensureFiles(t, rootDir, defaultDataDir, baseConfig.Genesis, baseConfig.PrivValidatorKey, baseConfig.PrivValidatorState)
+	pvConfig := DefaultPrivValidatorConfig()
+	ensureFiles(t, rootDir, defaultDataDir, baseConfig.Genesis, pvConfig.Key, pvConfig.State)
 }
 
 func checkConfig(configFile string) bool {

crypto/batch/batch.go

@@ -20,3 +20,14 @@ func CreateBatchVerifier(pk crypto.PubKey) (crypto.BatchVerifier, bool) {
 	// case where the key does not support batch verification
 	return nil, false
 }
+
+// SupportsBatchVerifier checks if a key type implements the batch verifier
+// interface.
+func SupportsBatchVerifier(pk crypto.PubKey) bool {
+	switch pk.Type() {
+	case ed25519.KeyType, sr25519.KeyType:
+		return true
+	}
+
+	return false
+}

crypto/crypto.go

@@ -46,7 +46,9 @@ type Symmetric interface {
 type BatchVerifier interface {
 	// Add appends an entry into the BatchVerifier.
 	Add(key PubKey, message, signature []byte) error
-	// Verify verifies all the entries in the BatchVerifier.
-	// If the verification fails it is unknown which entry failed and each entry will need to be verified individually.
-	Verify() bool
+	// Verify verifies all the entries in the BatchVerifier, and returns
+	// if every signature in the batch is valid, and a vector of bools
+	// indicating the verification status of each signature (in the order
+	// that signatures were added to the batch).
+	Verify() (bool, []bool)
 }

crypto/ed25519/bench_test.go

@@ -28,22 +28,37 @@ func BenchmarkVerification(b *testing.B) {
 }
 
 func BenchmarkVerifyBatch(b *testing.B) {
+	msg := []byte("BatchVerifyTest")
+
 	for _, sigsCount := range []int{1, 8, 64, 1024} {
 		sigsCount := sigsCount
 		b.Run(fmt.Sprintf("sig-count-%d", sigsCount), func(b *testing.B) {
-			b.ReportAllocs()
-			v := NewBatchVerifier()
+			// Pre-generate all of the keys, and signatures, but do not
+			// benchmark key-generation and signing.
+			pubs := make([]crypto.PubKey, 0, sigsCount)
+			sigs := make([][]byte, 0, sigsCount)
 			for i := 0; i < sigsCount; i++ {
 				priv := GenPrivKey()
-				pub := priv.PubKey()
-				msg := []byte("BatchVerifyTest")
 				sig, _ := priv.Sign(msg)
-				err := v.Add(pub, msg, sig)
-				require.NoError(b, err)
+				pubs = append(pubs, priv.PubKey().(PubKey))
+				sigs = append(sigs, sig)
 			}
+			b.ResetTimer()
+
+			b.ReportAllocs()
 			// NOTE: dividing by n so that metrics are per-signature
 			for i := 0; i < b.N/sigsCount; i++ {
-				if !v.Verify() {
+				// The benchmark could just benchmark the Verify()
+				// routine, but there is non-trivial overhead associated
+				// with BatchVerifier.Add(), which should be included
+				// in the benchmark.
+				v := NewBatchVerifier()
+				for i := 0; i < sigsCount; i++ {
+					err := v.Add(pubs[i], msg, sigs[i])
+					require.NoError(b, err)
+				}
+
+				if ok, _ := v.Verify(); !ok {
 					b.Fatal("signature set failed batch verification")
 				}
 			}

crypto/ed25519/ed25519.go

@@ -2,13 +2,13 @@ package ed25519
 
 import (
 	"bytes"
-	"crypto/ed25519"
 	"crypto/subtle"
 	"errors"
 	"fmt"
 	"io"
 
-	"github.com/hdevalence/ed25519consensus"
+	"github.com/oasisprotocol/curve25519-voi/primitives/ed25519"
+	"github.com/oasisprotocol/curve25519-voi/primitives/ed25519/extra/cache"
 
 	"github.com/tendermint/tendermint/crypto"
 	"github.com/tendermint/tendermint/crypto/tmhash"
@@ -17,7 +17,18 @@ import (
 
 //-------------------------------------
 
-var _ crypto.PrivKey = PrivKey{}
+var (
+	_ crypto.PrivKey = PrivKey{}
+
+	// curve25519-voi's Ed25519 implementation supports configurable
+	// verification behavior, and tendermint uses the ZIP-215 verification
+	// semantics.
+	verifyOptions = &ed25519.Options{
+		Verify: ed25519.VerifyOptionsZIP_215,
+	}
+
+	cachingVerifier = cache.NewVerifier(cache.NewLRUCache(cacheSize))
+)
 
 const (
 	PrivKeyName = "tendermint/PrivKeyEd25519"
@@ -34,6 +45,14 @@ const (
 	SeedSize = 32
 
 	KeyType = "ed25519"
+
+	// cacheSize is the number of public keys that will be cached in
+	// an expanded format for repeated signature verification.
+	//
+	// TODO/perf: Either this should exclude single verification, or be
+	// tuned to `> validatorSize + maxTxnsPerBlock` to avoid cache
+	// thrashing.
+	cacheSize = 4096
 )
 
 func init() {
@@ -107,14 +126,12 @@ func GenPrivKey() PrivKey {
 
 // genPrivKey generates a new ed25519 private key using the provided reader.
 func genPrivKey(rand io.Reader) PrivKey {
-	seed := make([]byte, SeedSize)
-
-	_, err := io.ReadFull(rand, seed)
+	_, priv, err := ed25519.GenerateKey(rand)
 	if err != nil {
 		panic(err)
 	}
 
-	return PrivKey(ed25519.NewKeyFromSeed(seed))
+	return PrivKey(priv)
 }
 
 // GenPrivKeyFromSecret hashes the secret with SHA2, and uses
@@ -153,7 +170,7 @@ func (pubKey PubKey) VerifySignature(msg []byte, sig []byte) bool {
 		return false
 	}
 
-	return ed25519consensus.Verify(ed25519.PublicKey(pubKey), msg, sig)
+	return cachingVerifier.VerifyWithOptions(ed25519.PublicKey(pubKey), msg, sig, verifyOptions)
 }
 
 func (pubKey PubKey) String() string {
@@ -175,30 +192,36 @@ func (pubKey PubKey) Equals(other crypto.PubKey) bool {
 var _ crypto.BatchVerifier = &BatchVerifier{}
 
 // BatchVerifier implements batch verification for ed25519.
-// https://github.com/hdevalence/ed25519consensus is used for batch verification
 type BatchVerifier struct {
-	ed25519consensus.BatchVerifier
+	*ed25519.BatchVerifier
 }
 
 func NewBatchVerifier() crypto.BatchVerifier {
-	return &BatchVerifier{ed25519consensus.NewBatchVerifier()}
+	return &BatchVerifier{ed25519.NewBatchVerifier()}
 }
 
 func (b *BatchVerifier) Add(key crypto.PubKey, msg, signature []byte) error {
-	if l := len(key.Bytes()); l != PubKeySize {
+	pkEd, ok := key.(PubKey)
+	if !ok {
+		return fmt.Errorf("pubkey is not Ed25519")
+	}
+
+	pkBytes := pkEd.Bytes()
+
+	if l := len(pkBytes); l != PubKeySize {
 		return fmt.Errorf("pubkey size is incorrect; expected: %d, got %d", PubKeySize, l)
 	}
 
-	// check that the signature is the correct length & the last byte is set correctly
-	if len(signature) != SignatureSize || signature[63]&224 != 0 {
+	// check that the signature is the correct length
+	if len(signature) != SignatureSize {
 		return errors.New("invalid signature")
 	}
 
-	b.BatchVerifier.Add(ed25519.PublicKey(key.Bytes()), msg, signature)
+	cachingVerifier.AddWithOptions(b.BatchVerifier, ed25519.PublicKey(pkBytes), msg, signature, verifyOptions)
 
 	return nil
 }
 
-func (b *BatchVerifier) Verify() bool {
-	return b.BatchVerifier.Verify()
+func (b *BatchVerifier) Verify() (bool, []bool) {
+	return b.BatchVerifier.Verify(crypto.CReader())
 }

crypto/ed25519/ed25519_test.go

@@ -50,5 +50,6 @@ func TestBatchSafe(t *testing.T) {
 		require.NoError(t, err)
 	}
 
-	require.True(t, v.Verify())
+	ok, _ := v.Verify()
+	require.True(t, ok)
 }

crypto/merkle/hash.go

@@ -1,6 +1,8 @@
 package merkle
 
 import (
+	"hash"
+
 	"github.com/tendermint/tendermint/crypto/tmhash"
 )
 
@@ -20,6 +22,14 @@ func leafHash(leaf []byte) []byte {
 	return tmhash.Sum(append(leafPrefix, leaf...))
 }
 
+// returns tmhash(0x00 || leaf)
+func leafHashOpt(s hash.Hash, leaf []byte) []byte {
+	s.Reset()
+	s.Write(leafPrefix)
+	s.Write(leaf)
+	return s.Sum(nil)
+}
+
 // returns tmhash(0x01 || left || right)
 func innerHash(left []byte, right []byte) []byte {
 	data := make([]byte, len(innerPrefix)+len(left)+len(right))
@@ -28,3 +38,11 @@ func innerHash(left []byte, right []byte) []byte {
 	copy(data[n:], right)
 	return tmhash.Sum(data)
 }
+
+func innerHashOpt(s hash.Hash, left []byte, right []byte) []byte {
+	s.Reset()
+	s.Write(innerPrefix)
+	s.Write(left)
+	s.Write(right)
+	return s.Sum(nil)
+}

crypto/merkle/proof.go

@@ -50,13 +50,13 @@ func ProofsFromByteSlices(items [][]byte) (rootHash []byte, proofs []*Proof) {
 // Verify that the Proof proves the root hash.
 // Check sp.Index/sp.Total manually if needed
 func (sp *Proof) Verify(rootHash []byte, leaf []byte) error {
-	leafHash := leafHash(leaf)
 	if sp.Total < 0 {
 		return errors.New("proof total must be positive")
 	}
 	if sp.Index < 0 {
 		return errors.New("proof index cannot be negative")
 	}
+	leafHash := leafHash(leaf)
 	if !bytes.Equal(sp.LeafHash, leafHash) {
 		return fmt.Errorf("invalid leaf hash: wanted %X got %X", leafHash, sp.LeafHash)
 	}
@@ -204,7 +204,10 @@ func (spn *ProofNode) FlattenAunts() [][]byte {
 		case spn.Right != nil:
 			innerHashes = append(innerHashes, spn.Right.Hash)
 		default:
-			break
+			// FIXME(fromberger): Per the documentation above, exactly one of
+			// these fields should be set. If that is true, this should probably
+			// be a panic since it violates the invariant. If not, when can it
+			// be OK to have no siblings? Does this occur at the leaves?
 		}
 		spn = spn.Parent
 	}

crypto/merkle/proof_key_path_test.go

@@ -35,6 +35,7 @@ func TestKeyPath(t *testing.T) {
 
 		res, err := KeyPathToKeys(path.String())
 		require.Nil(t, err)
+		require.Equal(t, len(keys), len(res))
 
 		for i, key := range keys {
 			require.Equal(t, key, res[i])

crypto/merkle/proof_test.go

@@ -171,12 +171,12 @@ func TestProofValidateBasic(t *testing.T) {
 	}
 }
 func TestVoteProtobuf(t *testing.T) {
-
 	_, proofs := ProofsFromByteSlices([][]byte{
 		[]byte("apple"),
 		[]byte("watermelon"),
 		[]byte("kiwi"),
 	})
+
 	testCases := []struct {
 		testName string
 		v1       *Proof

crypto/merkle/tree.go

@@ -1,22 +1,28 @@
 package merkle
 
 import (
+	"crypto/sha256"
+	"hash"
 	"math/bits"
 )
 
 // HashFromByteSlices computes a Merkle tree where the leaves are the byte slice,
 // in the provided order. It follows RFC-6962.
 func HashFromByteSlices(items [][]byte) []byte {
+	return hashFromByteSlices(sha256.New(), items)
+}
+
+func hashFromByteSlices(sha hash.Hash, items [][]byte) []byte {
 	switch len(items) {
 	case 0:
 		return emptyHash()
 	case 1:
-		return leafHash(items[0])
+		return leafHashOpt(sha, items[0])
 	default:
 		k := getSplitPoint(int64(len(items)))
-		left := HashFromByteSlices(items[:k])
-		right := HashFromByteSlices(items[k:])
-		return innerHash(left, right)
+		left := hashFromByteSlices(sha, items[:k])
+		right := hashFromByteSlices(sha, items[k:])
+		return innerHashOpt(sha, left, right)
 	}
 }
 
@@ -61,7 +67,7 @@ func HashFromByteSlices(items [][]byte) []byte {
 // implementation for so little benefit.
 func HashFromByteSlicesIterative(input [][]byte) []byte {
 	items := make([][]byte, len(input))
-
+	sha := sha256.New()
 	for i, leaf := range input {
 		items[i] = leafHash(leaf)
 	}
@@ -78,7 +84,7 @@ func HashFromByteSlicesIterative(input [][]byte) []byte {
 			wp := 0 // write position
 			for rp < size {
 				if rp+1 < size {
-					items[wp] = innerHash(items[rp], items[rp+1])
+					items[wp] = innerHashOpt(sha, items[rp], items[rp+1])
 					rp += 2
 				} else {
 					items[wp] = items[rp]

crypto/merkle/tree_test.go

@@ -7,10 +7,9 @@ import (
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 
-	tmrand "github.com/tendermint/tendermint/libs/rand"
-	. "github.com/tendermint/tendermint/libs/test"
-
 	"github.com/tendermint/tendermint/crypto/tmhash"
+	ctest "github.com/tendermint/tendermint/internal/libs/test"
+	tmrand "github.com/tendermint/tendermint/libs/rand"
 )
 
 type testItem []byte
@@ -92,11 +91,11 @@ func TestProof(t *testing.T) {
 		proof.Aunts = origAunts
 
 		// Mutating the itemHash should make it fail.
-		err = proof.Verify(rootHash, MutateByteSlice(item))
+		err = proof.Verify(rootHash, ctest.MutateByteSlice(item))
 		require.Error(t, err, "Expected verification to fail for mutated leaf hash")
 
 		// Mutating the rootHash should make it fail.
-		err = proof.Verify(MutateByteSlice(rootHash), item)
+		err = proof.Verify(ctest.MutateByteSlice(rootHash), item)
 		require.Error(t, err, "Expected verification to fail for mutated root hash")
 	}
 }

crypto/secp256k1/secp256k1.go

@@ -9,10 +9,11 @@ import (
 	"math/big"
 
 	secp256k1 "github.com/btcsuite/btcd/btcec"
-	"golang.org/x/crypto/ripemd160" // nolint: staticcheck // necessary for Bitcoin address format
-
 	"github.com/tendermint/tendermint/crypto"
 	tmjson "github.com/tendermint/tendermint/libs/json"
+
+	// necessary for Bitcoin address format
+	"golang.org/x/crypto/ripemd160" // nolint
 )
 
 //-------------------------------------

crypto/sr25519/batch.go

@@ -3,40 +3,44 @@ package sr25519
 import (
 	"fmt"
 
-	schnorrkel "github.com/ChainSafe/go-schnorrkel"
+	"github.com/oasisprotocol/curve25519-voi/primitives/sr25519"
 
 	"github.com/tendermint/tendermint/crypto"
 )
 
-var _ crypto.BatchVerifier = BatchVerifier{}
+var _ crypto.BatchVerifier = &BatchVerifier{}
 
 // BatchVerifier implements batch verification for sr25519.
-// https://github.com/ChainSafe/go-schnorrkel is used for batch verification
 type BatchVerifier struct {
-	*schnorrkel.BatchVerifier
+	*sr25519.BatchVerifier
 }
 
 func NewBatchVerifier() crypto.BatchVerifier {
-	return BatchVerifier{schnorrkel.NewBatchVerifier()}
+	return &BatchVerifier{sr25519.NewBatchVerifier()}
 }
 
-func (b BatchVerifier) Add(key crypto.PubKey, msg, sig []byte) error {
-	var sig64 [SignatureSize]byte
-	copy(sig64[:], sig)
-	signature := new(schnorrkel.Signature)
-	err := signature.Decode(sig64)
-	if err != nil {
-		return fmt.Errorf("unable to decode signature: %w", err)
+func (b *BatchVerifier) Add(key crypto.PubKey, msg, signature []byte) error {
+	pk, ok := key.(PubKey)
+	if !ok {
+		return fmt.Errorf("sr25519: pubkey is not sr25519")
 	}
 
-	signingContext := schnorrkel.NewSigningContext([]byte{}, msg)
+	var srpk sr25519.PublicKey
+	if err := srpk.UnmarshalBinary(pk); err != nil {
+		return fmt.Errorf("sr25519: invalid public key: %w", err)
+	}
 
-	var pk [PubKeySize]byte
-	copy(pk[:], key.Bytes())
+	var sig sr25519.Signature
+	if err := sig.UnmarshalBinary(signature); err != nil {
+		return fmt.Errorf("sr25519: unable to decode signature: %w", err)
+	}
 
-	return b.BatchVerifier.Add(signingContext, signature, schnorrkel.NewPublicKey(pk))
+	st := signingCtx.NewTranscriptBytes(msg)
+	b.BatchVerifier.Add(&srpk, st, &sig)
+
+	return nil
 }
 
-func (b BatchVerifier) Verify() bool {
-	return b.BatchVerifier.Verify()
+func (b *BatchVerifier) Verify() (bool, []bool) {
+	return b.BatchVerifier.Verify(crypto.CReader())
 }

crypto/sr25519/bench_test.go

@@ -28,22 +28,37 @@ func BenchmarkVerification(b *testing.B) {
 }
 
 func BenchmarkVerifyBatch(b *testing.B) {
-	for _, n := range []int{1, 8, 64, 1024} {
-		n := n
-		b.Run(fmt.Sprintf("sig-count-%d", n), func(b *testing.B) {
-			b.ReportAllocs()
-			v := NewBatchVerifier()
-			for i := 0; i < n; i++ {
+	msg := []byte("BatchVerifyTest")
+
+	for _, sigsCount := range []int{1, 8, 64, 1024} {
+		sigsCount := sigsCount
+		b.Run(fmt.Sprintf("sig-count-%d", sigsCount), func(b *testing.B) {
+			// Pre-generate all of the keys, and signatures, but do not
+			// benchmark key-generation and signing.
+			pubs := make([]crypto.PubKey, 0, sigsCount)
+			sigs := make([][]byte, 0, sigsCount)
+			for i := 0; i < sigsCount; i++ {
 				priv := GenPrivKey()
-				pub := priv.PubKey()
-				msg := []byte("BatchVerifyTest")
 				sig, _ := priv.Sign(msg)
-				err := v.Add(pub, msg, sig)
-				require.NoError(b, err)
+				pubs = append(pubs, priv.PubKey().(PubKey))
+				sigs = append(sigs, sig)
 			}
+			b.ResetTimer()
+
+			b.ReportAllocs()
 			// NOTE: dividing by n so that metrics are per-signature
-			for i := 0; i < b.N/n; i++ {
-				if !v.Verify() {
+			for i := 0; i < b.N/sigsCount; i++ {
+				// The benchmark could just benchmark the Verify()
+				// routine, but there is non-trivial overhead associated
+				// with BatchVerifier.Add(), which should be included
+				// in the benchmark.
+				v := NewBatchVerifier()
+				for i := 0; i < sigsCount; i++ {
+					err := v.Add(pubs[i], msg, sigs[i])
+					require.NoError(b, err)
+				}
+
+				if ok, _ := v.Verify(); !ok {
 					b.Fatal("signature set failed batch verification")
 				}
 			}

crypto/sr25519/encoding.go

@@ -1,23 +1,13 @@
 package sr25519
 
-import (
-	"github.com/tendermint/tendermint/crypto"
-	tmjson "github.com/tendermint/tendermint/libs/json"
-)
-
-var _ crypto.PrivKey = PrivKey{}
+import tmjson "github.com/tendermint/tendermint/libs/json"
 
 const (
 	PrivKeyName = "tendermint/PrivKeySr25519"
 	PubKeyName  = "tendermint/PubKeySr25519"
-
-	// SignatureSize is the size of an Edwards25519 signature. Namely the size of a compressed
-	// Sr25519 point, and a field element. Both of which are 32 bytes.
-	SignatureSize = 64
 )
 
 func init() {
-
 	tmjson.RegisterType(PubKey{}, PubKeyName)
 	tmjson.RegisterType(PrivKey{}, PrivKeyName)
 }

crypto/sr25519/privkey.go

@@ -1,70 +1,84 @@
 package sr25519
 
 import (
-	"crypto/subtle"
+	"encoding/json"
 	"fmt"
 	"io"
 
-	"github.com/tendermint/tendermint/crypto"
+	"github.com/oasisprotocol/curve25519-voi/primitives/sr25519"
 
-	schnorrkel "github.com/ChainSafe/go-schnorrkel"
+	"github.com/tendermint/tendermint/crypto"
 )
 
-// PrivKeySize is the number of bytes in an Sr25519 private key.
-const PrivKeySize = 32
+var (
+	_ crypto.PrivKey = PrivKey{}
 
-// PrivKeySr25519 implements crypto.PrivKey.
-type PrivKey []byte
+	signingCtx = sr25519.NewSigningContext([]byte{})
+)
 
-// Bytes returns the byte representation of the PrivKey.
+const (
+	// PrivKeySize is the size of a sr25519 signature in bytes.
+	PrivKeySize = sr25519.MiniSecretKeySize
+
+	KeyType = "sr25519"
+)
+
+// PrivKey implements crypto.PrivKey.
+type PrivKey struct {
+	msk sr25519.MiniSecretKey
+	kp  *sr25519.KeyPair
+}
+
+// Bytes returns the byte-encoded PrivKey.
 func (privKey PrivKey) Bytes() []byte {
-	return []byte(privKey)
+	if privKey.kp == nil {
+		return nil
+	}
+	return privKey.msk[:]
 }
 
 // Sign produces a signature on the provided message.
 func (privKey PrivKey) Sign(msg []byte) ([]byte, error) {
-	var p [PrivKeySize]byte
-	copy(p[:], privKey)
-	miniSecretKey, err := schnorrkel.NewMiniSecretKeyFromRaw(p)
-	if err != nil {
-		return []byte{}, err
-	}
-	secretKey := miniSecretKey.ExpandEd25519()
-
-	signingContext := schnorrkel.NewSigningContext([]byte{}, msg)
-
-	sig, err := secretKey.Sign(signingContext)
-	if err != nil {
-		return []byte{}, err
+	if privKey.kp == nil {
+		return nil, fmt.Errorf("sr25519: uninitialized private key")
 	}
 
-	sigBytes := sig.Encode()
-	return sigBytes[:], nil
+	st := signingCtx.NewTranscriptBytes(msg)
+
+	sig, err := privKey.kp.Sign(crypto.CReader(), st)
+	if err != nil {
+		return nil, fmt.Errorf("sr25519: failed to sign message: %w", err)
+	}
+
+	sigBytes, err := sig.MarshalBinary()
+	if err != nil {
+		return nil, fmt.Errorf("sr25519: failed to serialize signature: %w", err)
+	}
+
+	return sigBytes, nil
 }
 
 // PubKey gets the corresponding public key from the private key.
+//
+// Panics if the private key is not initialized.
 func (privKey PrivKey) PubKey() crypto.PubKey {
-	var p [PrivKeySize]byte
-	copy(p[:], privKey)
-	miniSecretKey, err := schnorrkel.NewMiniSecretKeyFromRaw(p)
-	if err != nil {
-		panic(fmt.Sprintf("Invalid private key: %v", err))
+	if privKey.kp == nil {
+		panic("sr25519: uninitialized private key")
 	}
-	secretKey := miniSecretKey.ExpandEd25519()
 
-	pubkey, err := secretKey.Public()
+	b, err := privKey.kp.PublicKey().MarshalBinary()
 	if err != nil {
-		panic(fmt.Sprintf("Could not generate public key: %v", err))
+		panic("sr25519: failed to serialize public key: " + err.Error())
 	}
-	key := pubkey.Encode()
-	return PubKey(key[:])
+
+	return PubKey(b)
 }
 
 // Equals - you probably don't need to use this.
 // Runs in constant time based on length of the keys.
 func (privKey PrivKey) Equals(other crypto.PrivKey) bool {
-	if otherEd, ok := other.(PrivKey); ok {
-		return subtle.ConstantTimeCompare(privKey[:], otherEd[:]) == 1
+	if otherSr, ok := other.(PrivKey); ok {
+		return privKey.msk.Equal(&otherSr.msk)
 	}
 	return false
 }
@@ -73,6 +87,44 @@ func (privKey PrivKey) Type() string {
 	return KeyType
 }
 
+func (privKey PrivKey) MarshalJSON() ([]byte, error) {
+	var b []byte
+
+	// Handle uninitialized private keys gracefully.
+	if privKey.kp != nil {
+		b = privKey.Bytes()
+	}
+
+	return json.Marshal(b)
+}
+
+func (privKey *PrivKey) UnmarshalJSON(data []byte) error {
+	for i := range privKey.msk {
+		privKey.msk[i] = 0
+	}
+	privKey.kp = nil
+
+	var b []byte
+	if err := json.Unmarshal(data, &b); err != nil {
+		return fmt.Errorf("sr25519: failed to deserialize JSON: %w", err)
+	}
+	if len(b) == 0 {
+		return nil
+	}
+
+	msk, err := sr25519.NewMiniSecretKeyFromBytes(b)
+	if err != nil {
+		return err
+	}
+
+	sk := msk.ExpandEd25519()
+
+	privKey.msk = *msk
+	privKey.kp = sk.KeyPair()
+
+	return nil
+}
+
 // GenPrivKey generates a new sr25519 private key.
 // It uses OS randomness in conjunction with the current global random seed
 // in tendermint/libs/common to generate the private key.
@@ -80,20 +132,18 @@ func GenPrivKey() PrivKey {
 	return genPrivKey(crypto.CReader())
 }
 
-// genPrivKey generates a new sr25519 private key using the provided reader.
-func genPrivKey(rand io.Reader) PrivKey {
-	var seed [64]byte
-
-	out := make([]byte, 64)
-	_, err := io.ReadFull(rand, out)
+func genPrivKey(rng io.Reader) PrivKey {
+	msk, err := sr25519.GenerateMiniSecretKey(rng)
 	if err != nil {
-		panic(err)
+		panic("sr25519: failed to generate MiniSecretKey: " + err.Error())
 	}
 
-	copy(seed[:], out)
+	sk := msk.ExpandEd25519()
 
-	key := schnorrkel.NewMiniSecretKey(seed).ExpandEd25519().Encode()
-	return key[:]
+	return PrivKey{
+		msk: *msk,
+		kp:  sk.KeyPair(),
+	}
 }
 
 // GenPrivKeyFromSecret hashes the secret with SHA2, and uses
@@ -102,9 +152,14 @@ func genPrivKey(rand io.Reader) PrivKey {
 // if it's derived from user input.
 func GenPrivKeyFromSecret(secret []byte) PrivKey {
 	seed := crypto.Sha256(secret) // Not Ripemd160 because we want 32 bytes.
-	var bz [PrivKeySize]byte
-	copy(bz[:], seed)
-	privKey, _ := schnorrkel.NewMiniSecretKeyFromRaw(bz)
-	key := privKey.ExpandEd25519().Encode()
-	return key[:]
+
+	var privKey PrivKey
+	if err := privKey.msk.UnmarshalBinary(seed); err != nil {
+		panic("sr25519: failed to deserialize MiniSecretKey: " + err.Error())
+	}
+
+	sk := privKey.msk.ExpandEd25519()
+	privKey.kp = sk.KeyPair()
+
+	return privKey
 }

crypto/sr25519/pubkey.go

@@ -4,74 +4,65 @@ import (
 	"bytes"
 	"fmt"
 
+	"github.com/oasisprotocol/curve25519-voi/primitives/sr25519"
+
 	"github.com/tendermint/tendermint/crypto"
 	"github.com/tendermint/tendermint/crypto/tmhash"
-
-	schnorrkel "github.com/ChainSafe/go-schnorrkel"
 )
 
 var _ crypto.PubKey = PubKey{}
 
-// PubKeySize is the number of bytes in an Sr25519 public key.
 const (
-	PubKeySize = 32
-	KeyType    = "sr25519"
+	// PubKeySize is the size of a sr25519 public key in bytes.
+	PubKeySize = sr25519.PublicKeySize
+
+	// SignatureSize is the size of a sr25519 signature in bytes.
+	SignatureSize = sr25519.SignatureSize
 )
 
-// PubKeySr25519 implements crypto.PubKey for the Sr25519 signature scheme.
+// PubKey implements crypto.PubKey.
 type PubKey []byte
 
 // Address is the SHA256-20 of the raw pubkey bytes.
 func (pubKey PubKey) Address() crypto.Address {
-	return crypto.Address(tmhash.SumTruncated(pubKey[:]))
+	if len(pubKey) != PubKeySize {
+		panic("pubkey is incorrect size")
+	}
+	return crypto.Address(tmhash.SumTruncated(pubKey))
 }
 
-// Bytes returns the byte representation of the PubKey.
+// Bytes returns the PubKey byte format.
 func (pubKey PubKey) Bytes() []byte {
 	return []byte(pubKey)
 }
 
-func (pubKey PubKey) VerifySignature(msg []byte, sig []byte) bool {
-	// make sure we use the same algorithm to sign
-	if len(sig) != SignatureSize {
-		return false
+func (pubKey PubKey) Equals(other crypto.PubKey) bool {
+	if otherSr, ok := other.(PubKey); ok {
+		return bytes.Equal(pubKey[:], otherSr[:])
 	}
-	var sig64 [SignatureSize]byte
-	copy(sig64[:], sig)
 
-	publicKey := &(schnorrkel.PublicKey{})
-	var p [PubKeySize]byte
-	copy(p[:], pubKey)
-	err := publicKey.Decode(p)
-	if err != nil {
+	return false
+}
+
+func (pubKey PubKey) VerifySignature(msg []byte, sigBytes []byte) bool {
+	var srpk sr25519.PublicKey
+	if err := srpk.UnmarshalBinary(pubKey); err != nil {
 		return false
 	}
 
-	signingContext := schnorrkel.NewSigningContext([]byte{}, msg)
-
-	signature := &(schnorrkel.Signature{})
-	err = signature.Decode(sig64)
-	if err != nil {
+	var sig sr25519.Signature
+	if err := sig.UnmarshalBinary(sigBytes); err != nil {
 		return false
 	}
 
-	return publicKey.Verify(signature, signingContext)
+	st := signingCtx.NewTranscriptBytes(msg)
+	return srpk.Verify(st, &sig)
+}
+
+func (pubKey PubKey) Type() string {
+	return KeyType
 }
 
 func (pubKey PubKey) String() string {
 	return fmt.Sprintf("PubKeySr25519{%X}", []byte(pubKey))
 }
-
-// Equals - checks that two public keys are the same time
-// Runs in constant time based on length of the keys.
-func (pubKey PubKey) Equals(other crypto.PubKey) bool {
-	if otherEd, ok := other.(PubKey); ok {
-		return bytes.Equal(pubKey[:], otherEd[:])
-	}
-	return false
-}
-
-func (pubKey PubKey) Type() string {
-	return KeyType
-
-}

crypto/sr25519/sr25519_test.go

@@ -1,6 +1,8 @@
 package sr25519_test
 
 import (
+	"encoding/base64"
+	"encoding/json"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -11,7 +13,6 @@ import (
 )
 
 func TestSignAndValidateSr25519(t *testing.T) {
-
 	privKey := sr25519.GenPrivKey()
 	pubKey := privKey.PubKey()
 
@@ -32,6 +33,7 @@ func TestSignAndValidateSr25519(t *testing.T) {
 
 func TestBatchSafe(t *testing.T) {
 	v := sr25519.NewBatchVerifier()
+	vFail := sr25519.NewBatchVerifier()
 	for i := 0; i <= 38; i++ {
 		priv := sr25519.GenPrivKey()
 		pub := priv.PubKey()
@@ -48,9 +50,49 @@ func TestBatchSafe(t *testing.T) {
 
 		err = v.Add(pub, msg, sig)
 		require.NoError(t, err)
+
+		switch i % 2 {
+		case 0:
+			err = vFail.Add(pub, msg, sig)
+		case 1:
+			msg[2] ^= byte(0x01)
+			err = vFail.Add(pub, msg, sig)
+		}
+		require.NoError(t, err)
 	}
 
-	if !v.Verify() {
-		t.Error("failed batch verification")
+	ok, valid := v.Verify()
+	require.True(t, ok, "failed batch verification")
+	for i, ok := range valid {
+		require.Truef(t, ok, "sig[%d] should be marked valid", i)
+	}
+
+	ok, valid = vFail.Verify()
+	require.False(t, ok, "succeeded batch verification (invalid batch)")
+	for i, ok := range valid {
+		expected := (i % 2) == 0
+		require.Equalf(t, expected, ok, "sig[%d] should be %v", i, expected)
 	}
 }
+
+func TestJSON(t *testing.T) {
+	privKey := sr25519.GenPrivKey()
+
+	t.Run("PrivKey", func(t *testing.T) {
+		b, err := json.Marshal(privKey)
+		require.NoError(t, err)
+
+		// b should be the base64 encoded MiniSecretKey, enclosed by doublequotes.
+		b64 := base64.StdEncoding.EncodeToString(privKey.Bytes())
+		b64 = "\"" + b64 + "\""
+		require.Equal(t, []byte(b64), b)
+
+		var privKey2 sr25519.PrivKey
+		err = json.Unmarshal(b, &privKey2)
+		require.NoError(t, err)
+		require.Len(t, privKey2.Bytes(), sr25519.PrivKeySize)
+		require.EqualValues(t, privKey.Bytes(), privKey2.Bytes())
+	})
+
+	// PubKeys are just []byte, so there is no special handling.
+}

docs/app-dev/abci-cli.md

@@ -31,7 +31,6 @@ Available Commands:
   check_tx    Validate a tx
   commit      Commit the application state and return the Merkle root hash
   console     Start an interactive abci console for multiple commands
-  counter     ABCI demo example
   deliver_tx  Deliver a new tx to the application
   kvstore     ABCI demo example
   echo        Have the application echo a message
@@ -214,137 +213,9 @@ we do `deliver_tx "abc=efg"` it will store `(abc, efg)`.
 Similarly, you could put the commands in a file and run
 `abci-cli --verbose batch < myfile`.
 
-## Counter - Another Example
-
-Now that we've got the hang of it, let's try another application, the
-"counter" app.
-
-Like the kvstore app, its code can be found
-[here](https://github.com/tendermint/tendermint/blob/master/abci/cmd/abci-cli/abci-cli.go)
-and looks like:
-
-```go
-func cmdCounter(cmd *cobra.Command, args []string) error {
-
-    app := counter.NewCounterApplication(flagSerial)
-
-    logger := log.NewTMLogger(log.NewSyncWriter(os.Stdout))
-
-    // Start the listener
-    srv, err := server.NewServer(flagAddrC, flagAbci, app)
-    if err != nil {
-        return err
-    }
-    srv.SetLogger(logger.With("module", "abci-server"))
-    if err := srv.Start(); err != nil {
-        return err
-    }
-
-    // Stop upon receiving SIGTERM or CTRL-C.
-    tmos.TrapSignal(logger, func() {
-        // Cleanup
-        srv.Stop()
-    })
-
-    // Run forever.
-    select {}
-}
-```
-
-The counter app doesn't use a Merkle tree, it just counts how many times
-we've sent a transaction, asked for a hash, or committed the state. The
-result of `commit` is just the number of transactions sent.
-
-This application has two modes: `serial=off` and `serial=on`.
-
-When `serial=on`, transactions must be a big-endian encoded incrementing
-integer, starting at 0.
-
-If `serial=off`, there are no restrictions on transactions.
-
-We can toggle the value of `serial` using the `set_option` ABCI message.
-
-When `serial=on`, some transactions are invalid. In a live blockchain,
-transactions collect in memory before they are committed into blocks. To
-avoid wasting resources on invalid transactions, ABCI provides the
-`check_tx` message, which application developers can use to accept or
-reject transactions, before they are stored in memory or gossipped to
-other peers.
-
-In this instance of the counter app, `check_tx` only allows transactions
-whose integer is greater than the last committed one.
-
-Let's kill the console and the kvstore application, and start the
-counter app:
-
-```sh
-abci-cli counter
-```
-
-In another window, start the `abci-cli console`:
-
-```sh
-
-> check_tx 0x00
--> code: OK
-
-> check_tx 0xff
--> code: OK
-
-> deliver_tx 0x00
--> code: OK
-
-> check_tx 0x00
--> code: BadNonce
--> log: Invalid nonce. Expected >= 1, got 0
-
-> deliver_tx 0x01
--> code: OK
-
-> deliver_tx 0x04
--> code: BadNonce
--> log: Invalid nonce. Expected 2, got 4
-
-> info
--> code: OK
--> data: {"hashes":0,"txs":2}
--> data.hex: 0x7B22686173686573223A302C22747873223A327D
-```
-
-This is a very simple application, but between `counter` and `kvstore`,
-its easy to see how you can build out arbitrary application states on
-top of the ABCI. [Hyperledger's
-Burrow](https://github.com/hyperledger/burrow) also runs atop ABCI,
-bringing with it Ethereum-like accounts, the Ethereum virtual-machine,
-Monax's permissioning scheme, and native contracts extensions.
-
-But the ultimate flexibility comes from being able to write the
-application easily in any language.
-
-We have implemented the counter in a number of languages [see the
-example directory](https://github.com/tendermint/tendermint/tree/master/abci/example).
-
-To run the Node.js version, fist download & install [the Javascript ABCI server](https://github.com/tendermint/js-abci):
-
-```sh
-git clone https://github.com/tendermint/js-abci.git
-cd js-abci
-npm install abci
-```
-
-Now you can start the app:
-
-```sh
-node example/counter.js
-```
-
-(you'll have to kill the other counter application process). In another
-window, run the console and those previous ABCI commands. You should get
-the same results as for the Go version.
-
 ## Bounties
 
-Want to write the counter app in your favorite language?! We'd be happy
+Want to write an app in your favorite language?! We'd be happy
 to add you to our [ecosystem](https://github.com/tendermint/awesome#ecosystem)!
 See [funding](https://github.com/interchainio/funding) opportunities from the
 [Interchain Foundation](https://interchain.io/) for implementations in new languages and more.

docs/app-dev/getting-started.md

@@ -37,8 +37,8 @@ cd $GOPATH/src/github.com/tendermint/tendermint
 make install_abci
 ```
 
-Now you should have the `abci-cli` installed; you'll see a couple of
-commands (`counter` and `kvstore`) that are example applications written
+Now you should have the `abci-cli` installed; you'll notice the `kvstore`
+command, an example application written
 in Go. See below for an application written in JavaScript.
 
 Now, let's run some apps!
@@ -165,92 +165,6 @@ curl -s 'localhost:26657/abci_query?data="name"'
 Try some other transactions and queries to make sure everything is
 working!
 
-## Counter - Another Example
-
-Now that we've got the hang of it, let's try another application, the
-`counter` app.
-
-The counter app doesn't use a Merkle tree, it just counts how many times
-we've sent a transaction, or committed the state.
-
-This application has two modes: `serial=off` and `serial=on`.
-
-When `serial=on`, transactions must be a big-endian encoded incrementing
-integer, starting at 0.
-
-If `serial=off`, there are no restrictions on transactions.
-
-In a live blockchain, transactions collect in memory before they are
-committed into blocks. To avoid wasting resources on invalid
-transactions, ABCI provides the `CheckTx` message, which application
-developers can use to accept or reject transactions, before they are
-stored in memory or gossipped to other peers.
-
-In this instance of the counter app, with `serial=on`, `CheckTx` only
-allows transactions whose integer is greater than the last committed
-one.
-
-Let's kill the previous instance of `tendermint` and the `kvstore`
-application, and start the counter app. We can enable `serial=on` with a
-flag:
-
-```sh
-abci-cli counter --serial
-```
-
-In another window, reset then start Tendermint:
-
-```sh
-tendermint unsafe_reset_all
-tendermint start
-```
-
-Once again, you can see the blocks streaming by. Let's send some
-transactions. Since we have set `serial=on`, the first transaction must
-be the number `0`:
-
-```sh
-curl localhost:26657/broadcast_tx_commit?tx=0x00
-```
-
-Note the empty (hence successful) response. The next transaction must be
-the number `1`. If instead, we try to send a `5`, we get an error:
-
-```json
-> curl localhost:26657/broadcast_tx_commit?tx=0x05
-{
-  "jsonrpc": "2.0",
-  "id": "",
-  "result": {
-    "check_tx": {},
-    "deliver_tx": {
-      "code": 2,
-      "log": "Invalid nonce. Expected 1, got 5"
-    },
-    "hash": "33B93DFF98749B0D6996A70F64071347060DC19C",
-    "height": 34
-  }
-}
-```
-
-But if we send a `1`, it works again:
-
-```json
-> curl localhost:26657/broadcast_tx_commit?tx=0x01
-{
-  "jsonrpc": "2.0",
-  "id": "",
-  "result": {
-    "check_tx": {},
-    "deliver_tx": {},
-    "hash": "F17854A977F6FA7EEA1BD758E296710B86F72F3D",
-    "height": 60
-  }
-}
-```
-
-For more details on the `broadcast_tx` API, see [the guide on using
-Tendermint](../tendermint-core/using-tendermint.md).
 
 ## CounterJS - Example in Another Language
 

docs/app-dev/indexing-transactions.md

@@ -31,24 +31,61 @@ For example:
 
 would be equal to the composite key of `jack.account.number`.
 
-Let's take a look at the `[tx_index]` config section:
+By default, Tendermint will index all transactions by their respective hashes
+and height and blocks by their height.
+
+## Configuration
+
+Operators can configure indexing via the `[tx_index]` section. The `indexer`
+field takes a series of supported indexers. If `null` is included, indexing will
+be turned off regardless of other values provided.
 
 ```toml
-##### transactions indexer configuration options #####
-[tx_index]
+[tx-index]
 
-# What indexer to use for transactions
+# The backend database list to back the indexer.
+# If list contains null, meaning no indexer service will be used.
+#
+# The application will set which txs to index. In some cases a node operator will be able
+# to decide which txs to index based on configuration set in the application.
 #
 # Options:
 #   1) "null"
 #   2) "kv" (default) - the simplest possible indexer, backed by key-value storage (defaults to levelDB; see DBBackend).
-indexer = "kv"
+#     - When "kv" is chosen "tx.height" and "tx.hash" will always be indexed.
+#   3) "psql" - the indexer services backed by PostgreSQL.
+# indexer = []
 ```
 
-By default, Tendermint will index all transactions by their respective hashes
-and height and blocks by their height.
+### Supported Indexers
 
-You can turn off indexing completely by setting `tx_index` to `null`.
+#### KV
+
+The `kv` indexer type is an embedded key-value store supported by the main
+underling Tendermint database. Using the `kv` indexer type allows you to query
+for block and transaction events directly against Tendermint's RPC. However, the
+query syntax is limited and so this indexer type might be deprecated or removed
+entirely in the future.
+
+#### PostgreSQL
+
+The `psql` indexer type allows an operator to enable block and transaction event
+indexing by proxying it to an external PostgreSQL instance allowing for the events
+to be stored in relational models. Since the events are stored in a RDBMS, operators
+can leverage SQL to perform a series of rich and complex queries that are not
+supported by the `kv` indexer type. Since operators can leverage SQL directly,
+searching is not enabled for the `psql` indexer type via Tendermint's RPC -- any
+such query will fail.
+
+Note, the SQL schema is stored in `state/indexer/sink/psql/schema.sql` and operators
+must explicitly create the relations prior to starting Tendermint and enabling
+the `psql` indexer type.
+
+Example:
+
+```shell
+$ psql ... -f state/indexer/sink/psql/schema.sql
+```
 
 ## Default Indexes
 

docs/architecture/README.md

@@ -29,70 +29,72 @@ Note the context/background should be written in the present tense.
 
 ## Table of Contents
 
-### Accepted
+### Implemented
 
+- [ADR-001: Logging](./adr-001-logging.md)
+- [ADR-002: Event-Subscription](./adr-002-event-subscription.md)
 - [ADR-003: ABCI-APP-RPC](./adr-003-abci-app-rpc.md)
 - [ADR-004: Historical-Validators](./adr-004-historical-validators.md)
-- [ADR-006: Trust-Metric](./adr-006-trust-metric.md)
+- [ADR-005: Consensus-Params](./adr-005-consensus-params.md)
+- [ADR-008: Priv-Validator](./adr-008-priv-validator.md)
 - [ADR-009: ABCI-Design](./adr-009-ABCI-design.md)
+- [ADR-010: Crypto-Changes](./adr-010-crypto-changes.md)
+- [ADR-011: Monitoring](./adr-011-monitoring.md)
 - [ADR-014: Secp-Malleability](./adr-014-secp-malleability.md)
 - [ADR-015: Crypto-Encoding](./adr-015-crypto-encoding.md)
+- [ADR-016: Protocol-Versions](./adr-016-protocol-versions.md)
+- [ADR-017: Chain-Versions](./adr-017-chain-versions.md)
+- [ADR-018: ABCI-Validators](./adr-018-ABCI-Validators.md)
+- [ADR-019: Multisigs](./adr-019-multisigs.md)
 - [ADR-020: Block-Size](./adr-020-block-size.md)
+- [ADR-021: ABCI-Events](./adr-021-abci-events.md)
 - [ADR-025: Commit](./adr-025-commit.md)
+- [ADR-026: General-Merkle-Proof](./adr-026-general-merkle-proof.md)
+- [ADR-033: Pubsub](./adr-033-pubsub.md)
 - [ADR-034: Priv-Validator-File-Structure](./adr-034-priv-validator-file-structure.md)
-- [ADR-039: Peer-Behaviour](./adr-039-peer-behaviour.md)
+- [ADR-043: Blockchain-RiRi-Org](./adr-043-blockchain-riri-org.md)
 - [ADR-044: Lite-Client-With-Weak-Subjectivity](./adr-044-lite-client-with-weak-subjectivity.md)
 - [ADR-046: Light-Client-Implementation](./adr-046-light-client-implementation.md)
 - [ADR-047: Handling-Evidence-From-Light-Client](./adr-047-handling-evidence-from-light-client.md)
+- [ADR-051: Double-Signing-Risk-Reduction](./adr-051-double-signing-risk-reduction.md)
+- [ADR-052: Tendermint-Mode](./adr-052-tendermint-mode.md)
 - [ADR-053: State-Sync-Prototype](./adr-053-state-sync-prototype.md)
+- [ADR-054: Crypto-Encoding-2](./adr-054-crypto-encoding-2.md)
 - [ADR-055: Protobuf-Design](./adr-055-protobuf-design.md)
-- [ADR-056: Light-Client-Amnesia-Attacks](./adr-056-light-client-amnesia-attacks)
+- [ADR-056: Light-Client-Amnesia-Attacks](./adr-056-light-client-amnesia-attacks.md)
 - [ADR-059: Evidence-Composition-and-Lifecycle](./adr-059-evidence-composition-and-lifecycle.md)
+- [ADR-062: P2P-Architecture](./adr-062-p2p-architecture.md)
+- [ADR-063: Privval-gRPC](./adr-063-privval-grpc.md)
+- [ADR-066-E2E-Testing](./adr-066-e2e-testing.md)
+### Accepted
+
+- [ADR-006: Trust-Metric](./adr-006-trust-metric.md)
+- [ADR-024: Sign-Bytes](./adr-024-sign-bytes.md)
+- [ADR-035: Documentation](./adr-035-documentation.md)
+- [ADR-039: Peer-Behaviour](./adr-039-peer-behaviour.md)
 - [ADR-060: Go-API-Stability](./adr-060-go-api-stability.md)
 - [ADR-061: P2P-Refactor-Scope](./adr-061-p2p-refactor-scope.md)
-- [ADR-062: P2P-Architecture](./adr-062-p2p-architecture.md)
 - [ADR-065: Custom Event Indexing](./adr-065-custom-event-indexing.md)
-- [ADR-066-E2E-Testing](./adr-066-e2e-testing.md)
 - [ADR-068: Reverse-Sync](./adr-068-reverse-sync.md)
+- [ADR-067: Mempool Refactor](./adr-067-mempool-refactor.md)
 
 ### Rejected
 
+- [ADR-023: ABCI-Propose-tx](./adr-023-ABCI-propose-tx.md)
 - [ADR-029: Check-Tx-Consensus](./adr-029-check-tx-consensus.md)
 - [ADR-058: Event-Hashing](./adr-058-event-hashing.md)
 
 
 ### Proposed
 
-- [ADR-001: Logging](./adr-001-logging.md)
-- [ADR-002: Event-Subscription](./adr-002-event-subscription.md)
-- [ADR-005: Consensus-Params](./adr-005-consensus-params.md)
 - [ADR-007: Trust-Metric-Usage](./adr-007-trust-metric-usage.md)
-- [ADR-008: Priv-Validator](./adr-008-priv-validator.md)
-- [ADR-010: Crypto-Changes](./adr-010-crypto-changes.md)
-- [ADR-011: Monitoring](./adr-011-monitoring.md)
 - [ADR-012: Peer-Transport](./adr-012-peer-transport.md)
 - [ADR-013: Symmetric-Crypto](./adr-013-symmetric-crypto.md)
-- [ADR-016: Protocol-Versions](./adr-016-protocol-versions.md)
-- [ADR-017: Chain-Versions](./adr-017-chain-versions.md)
-- [ADR-018: ABCI-Validators](./adr-018-ABCI-Validators.md)
-- [ADR-019: Multisigs](./adr-019-multisigs.md)
-- [ADR-021: ABCI-Events](./adr-021-abci-events.md)
 - [ADR-022: ABCI-Errors](./adr-022-abci-errors.md)
-- [ADR-023: ABCI-Propose-tx](./adr-023-ABCI-propose-tx.md)
-- [ADR-024: Sign-Bytes](./adr-024-sign-bytes.md)
-- [ADR-026: General-Merkle-Proof](./adr-026-general-merkle-proof.md)
-- [ADR-028: libp2p](./adr-028-libp2p.md)
 - [ADR-030: Consensus-Refactor](./adr-030-consensus-refactor.md)
-- [ADR-030: Changelog-structure](./adr-031-changelog.md)
-- [ADR-033: Pubsub](./adr-033-pubsub.md)
-- [ADR-035: Documentation](./adr-035-documentation.md)
 - [ADR-037: Deliver-Block](./adr-037-deliver-block.md)
 - [ADR-038: Non-Zero-Start-Height](./adr-038-non-zero-start-height.md)
 - [ADR-041: Proposer-Selection-via-ABCI](./adr-041-proposer-selection-via-abci.md)
-- [ADR-043: Blockchain-RiRi-Org](./adr-043-blockchain-riri-org.md)
 - [ADR-045: ABCI-Evidence](./adr-045-abci-evidence.md)
-- [ADR-051: Double-Signing-Risk-Reduction](./adr-051-double-signing-risk-reduction.md)
-- [ADR-052: Tendermint-Mode](./adr-052-tendermint-mode.md)
-- [ADR-054: Crypto-Encoding-2](./adr-054-crypto-encoding-2.md)
 - [ADR-057: RPC](./adr-057-RPC.md)
-- [ADR-063: Privval-gRPC](./adr-063-privval-grpc.md)
+- [ADR-069: Node Initialization](./adr-069-flexible-node-initialization.md)

docs/architecture/adr-001-logging.md

@@ -189,7 +189,7 @@ c2.SetLogger(log.With(logger, "instance", 2))
 
 ## Status
 
-proposed
+Implemented
 
 ## Consequences
 

docs/architecture/adr-002-event-subscription.md

@@ -71,7 +71,7 @@ For historic queries we will need a indexing storage (Postgres, SQLite, ...).
 
 ## Status
 
-proposed
+Implemented
 
 ## Consequences
 

docs/architecture/adr-003-abci-app-rpc.md

@@ -19,7 +19,7 @@ We dont expose an RPC server on any of our ABCI-apps.
 
 ## Status
 
-accepted
+Implemented
 
 ## Consequences
 

docs/architecture/adr-004-historical-validators.md

@@ -23,7 +23,7 @@ and likely less efficient.
 
 ## Status
 
-Accepted.
+Implemented
 
 ## Consequences
 

docs/architecture/adr-005-consensus-params.md

@@ -66,7 +66,7 @@ Tendermint should have hard-coded upper limits as sanity checks.
 
 ## Status
 
-Proposed.
+Implemented
 
 ## Consequences
 

docs/architecture/adr-009-ABCI-design.md

@@ -235,7 +235,7 @@ identically in ABCI and in Tendermint Core.
 
 ## Status
 
-Accepted.
+Implemented
 
 ## Consequences
 

docs/architecture/adr-010-crypto-changes.md

@@ -60,6 +60,8 @@ Make the following changes:
 
 ## Status
 
+Implemented
+
 ## Consequences
 
 ### Positive

docs/architecture/adr-011-monitoring.md

@@ -99,7 +99,7 @@ will need to write interfaces ourselves.
 
 ## Status
 
-Proposed.
+Implemented
 
 ## Consequences
 

docs/architecture/adr-018-ABCI-Validators.md

@@ -76,7 +76,7 @@ which is just informational.
 
 ## Status
 
-Proposal.
+Implemented
 
 ## Consequences
 

docs/architecture/adr-019-multisigs.md

@@ -8,6 +8,8 @@
 
 11-07-2018: Initial Draft
 
+5-26-2021: Multisigs were moved into the Cosmos-sdk
+
 ## Context
 
 Multisignatures, or technically _Accountable Subgroup Multisignatures_ (ASM),
@@ -141,7 +143,7 @@ Aggregation of pubkeys / sigs in Schnorr sigs / BLS sigs is not backwards compat
 
 ## Status
 
-Proposed.
+Implemented (moved to cosmos-sdk)
 
 ## Consequences
 

docs/architecture/adr-020-block-size.md

@@ -88,7 +88,7 @@ MaxXXX stayed the same.
 
 ## Status
 
-Accepted.
+Implemented
 
 ## Consequences
 

docs/architecture/adr-021-abci-events.md

@@ -35,7 +35,7 @@ TODO: describe impact on indexing and querying
 
 ## Status
 
-Proposed
+Implemented
 
 ## Consequences
 

docs/architecture/adr-022-abci-errors.md

@@ -1,4 +1,4 @@
-# ADR 023: ABCI Codespaces
+# ADR 022: ABCI Errors
 
 ## Changelog
 
@@ -61,4 +61,3 @@ efficiently by lite clients) is left for a separate ADR.
 - Some redundancy with `code` field
 - May encourage more error/code type info to move to the `codespace` string, which
   could impact lite clients.
-

docs/architecture/adr-023-ABCI-propose-tx.md

@@ -1,4 +1,4 @@
-# ADR 012: ABCI `ProposeTx` Method
+# ADR 023: ABCI `ProposeTx` Method
 
 ## Changelog