e2e: more consistent node selection during tests

pubsub: improve handling of closed blocking subsciptions. (#6852 )
blocksync: complete transition from Blockchain to BlockSync (#6847 )
2026-01-18 10:42:50 +00:00 · 2021-08-24 13:24:08 -04:00 · 2021-08-23 16:41:45 -04:00 · 2021-08-23 16:45:08 +02:00 · 2021-08-20 16:07:20 -04:00 · 2021-08-20 17:26:04 +00:00
16 changed files with 752 additions and 193 deletions
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -50,7 +50,7 @@ jobs:
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Publish to Docker Hub
-        uses: docker/build-push-action@v2.6.1
+        uses: docker/build-push-action@v2.7.0
        with:
          context: .
          file: ./DOCKER/Dockerfile
--- a/.github/workflows/proto-docker.yml
+++ b/.github/workflows/proto-docker.yml
@@ -43,7 +43,7 @@ jobs:
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Publish to Docker Hub
-        uses: docker/build-push-action@v2.6.1
+        uses: docker/build-push-action@v2.7.0
        with:
          context: ./tools/proto
          file: ./tools/proto/Dockerfile
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,27 @@

 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*
@@ -12,25 +33,25 @@ adding two new parameters to the state sync config.
 ### BREAKING CHANGES

 - Apps
-    - [Version] \#6494 `TMCoreSemVer` is not required to be set as a ldflag any longer.
+    - [Version] [\#6494](https://github.com/tendermint/tendermint/pull/6494) `TMCoreSemVer` is not required to be set as a ldflag any longer.

 ### IMPROVEMENTS

- [statesync] \#6566 Allow state sync fetchers and request timeout to be configurable. (@alexanderbez)
- [statesync] \#6378 Retry requests for snapshots and add a minimum discovery time (5s) for new snapshots. (@tychoish)
- [statesync] \#6582 Increase chunk priority and add multiple retry chunk requests (@cmwaters)
+- [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 Fix bug with inconsistent LightClientAttackEvidence hashing (@cmwaters)
+- [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! 
+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)
@@ -39,7 +60,7 @@ this issue!

 *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.

@@ -112,7 +133,7 @@ shout-out to @marbar3778 for diagnosing it quickly.

 ## 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._

@@ -120,9 +141,9 @@ _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!

@@ -132,17 +153,17 @@ Special thanks to other external contributors on this release: @yayajacky, @odid
 - [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. 
+https://nvd.nist.gov/vuln/detail/CVE-2021-3121.

 ### BUG FIXES

@@ -234,14 +255,14 @@ Special thanks to external contributors on this release: @james-ray, @fedekunze,
  - [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)
@@ -300,7 +321,7 @@ Special thanks to external contributors on this release: @james-ray, @fedekunze,
  - [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)
@@ -338,7 +359,7 @@ Special thanks to external contributors on this release: @james-ray, @fedekunze,
 - [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)
--- a/CHANGELOG_PENDING.md
+++ b/CHANGELOG_PENDING.md
@@ -24,7 +24,6 @@ Friendly reminder: We have a [bug bounty program](https://hackerone.com/tendermi
  - [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] Add genesis_chunked method to support paginated and parallel fetching of large genesis documents.
  - [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
@@ -109,7 +108,6 @@ Friendly reminder: We have a [bug bounty program](https://hackerone.com/tendermi

 ### IMPROVEMENTS

- [rpc] \#6825 Remove egregious INFO log from `ABCI#Query` RPC. (@alexanderbez)
 - [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)
@@ -160,6 +158,4 @@ Friendly reminder: We have a [bug bounty program](https://hackerone.com/tendermi
 - [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)
- [light] \#6687 Fix bug with incorrectly handled contexts in the light client (@cmwaters)
- [privval] \#6748 Fix vote timestamp to prevent chain halt (@JayT106)
+- [gitignore] \#6668 Fix gitignore of abci-cli (@tanyabouman)
--- a/docs/architecture/adr-071-proposer-based-timestamps.md
+++ b/docs/architecture/adr-071-proposer-based-timestamps.md
@@ -0,0 +1,445 @@
+# ADR 71: Proposer-Based Timestamps
+
+* [Changelog](#changelog)
+* [Status](#status)
+* [Context](#context)
+* [Alternative Approaches](#alternative-approaches)
+	* [Remove timestamps altogether](#remove-timestamps-altogether)
+* [Decision](#decision)
+* [Detailed Design](#detailed-design)
+	* [Overview](#overview)
+	* [Proposal Timestamp and Block Timestamp](#proposal-timestamp-and-block-timestamp)
+	* [Saving the timestamp across heights](#saving-the-timestamp-across-heights)
+	* [Changes to `CommitSig`](#changes-to-commitsig)
+	* [Changes to `Commit`](#changes-to-commit)
+	* [Changes to `Vote` messages](#changes-to-vote-messages)
+	* [New consensus parameters](#new-consensus-parameters)
+	* [Changes to `Header`](#changes-to-header)
+	* [Changes to the block proposal step](#changes-to-the-block-proposal-step)
+		* [Proposer selects proposal timestamp](#proposer-selects-proposal-timestamp)
+		* [Proposer selects block timestamp](#proposer-selects-block-timestamp)
+		* [Proposer waits](#proposer-waits)
+		* [Changes to the propose step timeout](#changes-to-the-propose-step-timeout)
+	* [Changes to validation rules](#changes-to-validation-rules)
+		* [Proposal timestamp validation](#proposal-timestamp-validation)
+		* [Block timestamp validation](#block-timestamp-validation)
+	* [Changes to the prevote step](#changes-to-the-prevote-step)
+	* [Changes to the precommit step](#changes-to-the-precommit-step)
+	* [Changes to locking a block](#changes-to-locking-a-block)
+	* [Remove voteTime Completely](#remove-votetime-completely)
+* [Future Improvements](#future-improvements)
+* [Consequences](#consequences)
+	* [Positive](#positive)
+	* [Neutral](#neutral)
+	* [Negative](#negative)
+* [References](#references)
+
+## Changelog
+
+ - July 15 2021: Created by @williambanfield 
+ - Aug 4 2021: Draft completed by @williambanfield
+ - Aug 5 2021: Draft updated to include data structure changes by @williambanfield
+ - Aug 20 2021: Language edits completed by @williambanfield
+
+## Status
+
+ **Accepted**
+
+## Context
+
+Tendermint currently provides a monotonically increasing source of time known as [BFTTime](https://github.com/tendermint/spec/blob/master/spec/consensus/bft-time.md).
+This mechanism for producing a source of time is reasonably simple.
+Each correct validator adds a timestamp to each `Precommit` message it sends.
+The timestamp it sends is either the validator's current known Unix time or one millisecond greater than the previous block time, depending on which value is greater.
+When a block is produced, the proposer chooses the block timestamp as the weighted median of the times in all of the `Precommit` messages the proposer received.
+The weighting is proportional to the amount of voting power, or stake, a validator has on the network.
+This mechanism for producing timestamps is both deterministic and byzantine fault tolerant.
+ 
+This current mechanism for producing timestamps has a few drawbacks.
+Validators do not have to agree at all on how close the selected block timestamp is to their own currently known Unix time.
+Additionally, any amount of voting power `>1/3` may directly control the block timestamp.
+As a result, it is quite possible that the timestamp is not particularly meaningful.
+
+These drawbacks present issues in the Tendermint protocol.
+Timestamps are used by light clients to verify blocks.
+Light clients rely on correspondence between their own currently known Unix time and the block timestamp to verify blocks they see; 
+However, their currently known Unix time may be greatly divergent from the block timestamp as a result of the limitations of `BFTTime`.
+
+The proposer-based timestamps specification suggests an alternative approach for producing block timestamps that remedies these issues.
+Proposer-based timestamps alter the current mechanism for producing block timestamps in two main ways:
+
+1. The block proposer is amended to offer up its currently known Unix time as the timestamp for the next block. 
+1. Correct validators only approve the proposed block timestamp if it is close enough to their own currently known Unix time. 
+
+The result of these changes is a more meaningful timestamp that cannot be controlled by `<= 2/3` of the validator voting power. 
+This document outlines the necessary code changes in Tendermint to implement the corresponding [proposer-based timestamps specification](https://github.com/tendermint/spec/tree/master/spec/consensus/proposer-based-timestamp).
+
+## Alternative Approaches
+
+### Remove timestamps altogether
+
+Computer clocks are bound to skew for a variety of reasons.
+Using timestamps in our protocol means either accepting the timestamps as not reliable or impacting the protocol’s liveness guarantees.
+This design requires impacting the protocol’s liveness in order to make the timestamps more reliable.
+An alternate approach is to remove timestamps altogether from the block protocol.
+`BFTTime` is deterministic but may be arbitrarily inaccurate.
+However, having a reliable source of time is quite useful for applications and protocols built on top of a blockchain.
+
+We therefore decided not to remove the timestamp. 
+Applications often wish for some transactions to occur on a certain day, on a regular period, or after some time following a different event.
+All of these require some meaningful representation of agreed upon time.
+The following protocols and application features require a reliable source of time:
+* Tendermint Light Clients [rely on correspondence between their known time](https://github.com/tendermint/spec/blob/master/spec/light-client/verification/README.md#definitions-1) and the block time for block verification.
+* Tendermint Evidence validity is determined [either in terms of heights or in terms of time](https://github.com/tendermint/spec/blob/8029cf7a0fcc89a5004e173ec065aa48ad5ba3c8/spec/consensus/evidence.md#verification).
+* Unbonding of staked assets in the Cosmos Hub [occurs after a period of 21 days](https://github.com/cosmos/governance/blob/ce75de4019b0129f6efcbb0e752cd2cc9e6136d3/params-change/Staking.md#unbondingtime).
+* IBC packets can use either a [timestamp or a height to timeout packet delivery](https://docs.cosmos.network/v0.43/ibc/overview.html#acknowledgements).
+
+Finally, inflation distribution in the Cosmos Hub uses an approximation of time to calculate an annual percentage rate. 
+This approximation of time is calculated using [block heights with an estimated number of blocks produced in a year](https://github.com/cosmos/governance/blob/master/params-change/Mint.md#blocksperyear). 
+Proposer-based timestamps will allow this inflation calculation to use a more meaningful and accurate source of time.
+
+
+## Decision
+
+Implement proposer-based timestamps and remove `BFTTime`.
+
+## Detailed Design
+
+### Overview
+
+Implementing proposer-based timestamps will require a few changes to Tendermint’s code.
+These changes will be to the following components:
+* The `internal/consensus/` package.
+* The `state/` package.
+* The `Vote`, `CommitSig`, `Commit` and `Header` types.
+* The consensus parameters.
+
+### Proposal Timestamp and Block Timestamp
+
+This design discusses two timestamps: (1) The timestamp in the block and (2) the timestamp in the proposal message.
+The existence and use of both of these timestamps can get a bit confusing, so some background is given here to clarify their uses.
+
+The [proposal message currently has a timestamp](https://github.com/tendermint/tendermint/blob/e5312942e30331e7c42b75426da2c6c9c00ae476/types/proposal.go#L31).
+This timestamp is the current Unix time known to the proposer when sending the `Proposal` message.
+This timestamp is not currently used as part of consensus.
+The changes in this ADR will begin using the proposal message timestamp as part of consensus.
+We will refer to this as the **proposal timestamp** throughout this design.
+
+The block has a timestamp field [in the header](https://github.com/tendermint/tendermint/blob/dc7c212c41a360bfe6eb38a6dd8c709bbc39aae7/types/block.go#L338).
+This timestamp is set currently as part of Tendermint’s `BFTtime` algorithm.
+It is set when a block is proposed and it is checked by the validators when they are deciding to prevote the block.
+This field will continue to be used but the logic for creating and validating this timestamp will change.
+We will refer to this as the **block timestamp** throughout this design.
+
+At a high level, the proposal timestamp from height `H` is used as the block timestamp at height `H+1`.
+The following image shows this relationship.
+The rest of this document describes the code changes that will make this possible.
+
+![](./img/pbts-message.png)
+
+### Saving the timestamp across heights
+
+Currently, `BFTtime` uses `LastCommit` to construct the block timestamp.
+The `LastCommit` is created at height `H-1` and is saved in the state store to be included in the block at height `H`.
+`BFTtime` takes the weighted median of the timestamps in `LastCommit.CommitSig` to build the timestamp for height `H`. 
+
+For proposer-based timestamps, the `LastCommit.CommitSig` timestamps will no longer be used to build the timestamps for height `H`.
+Instead, the proposal timestamp from height `H-1` will become the block timestamp for height `H`.
+To enable this, we will add a `Timestamp` field to the `Commit` struct.
+This field will be populated at each height with the proposal timestamp decided on at the previous height.
+This timestamp will also be saved with the rest of the commit in the state store [when the commit is finalized](https://github.com/tendermint/tendermint/blob/e8013281281985e3ada7819f42502b09623d24a0/internal/consensus/state.go#L1611) so that it can be recovered if Tendermint crashes.
+Changes to the `CommitSig` and `Commit` struct are detailed below. 
+
+### Changes to `CommitSig`
+
+The [CommitSig](https://github.com/tendermint/tendermint/blob/a419f4df76fe4aed668a6c74696deabb9fe73211/types/block.go#L604) struct currently contains a timestamp. 
+This timestamp is the current Unix time known to the validator when it issued a `Precommit` for the block.
+This timestamp is no longer used and will be removed in this change.
+
+`CommitSig` will be updated as follows:
+
+```diff
+type CommitSig struct {
+	BlockIDFlag      BlockIDFlag `json:"block_id_flag"`
+	ValidatorAddress Address     `json:"validator_address"`
+--	Timestamp        time.Time   `json:"timestamp"`
+	Signature        []byte      `json:"signature"`
+}
+```
+
+### Changes to `Commit`
+
+The [Commit](https://github.com/tendermint/tendermint/blob/a419f4df76fe4aed668a6c74696deabb9fe73211/types/block.go#L746) struct does not currently contain a timestamp. 
+The timestamps in the `Commit.CommitSig` entries are currently used to build the block timestamp.
+With these timestamps removed, the commit time will instead be stored in the `Commit` struct.
+
+`Commit` will be updated as follows. 
+
+```diff
+type Commit struct {
+	Height     int64       `json:"height"`
+	Round      int32       `json:"round"`
++	Timestamp  time.Time  `json:"timestamp"` 
+	BlockID    BlockID     `json:"block_id"`
+	Signatures []CommitSig `json:"signatures"`
+}
+```
+
+### Changes to `Vote` messages
+
+`Precommit` and `Prevote` messages use a common [Vote struct](https://github.com/tendermint/tendermint/blob/a419f4df76fe4aed668a6c74696deabb9fe73211/types/vote.go#L50).
+This struct currently contains a timestamp.
+This timestamp is set using the [voteTime](https://github.com/tendermint/tendermint/blob/e8013281281985e3ada7819f42502b09623d24a0/internal/consensus/state.go#L2241) function and therefore vote times correspond to the current Unix time known to the validator.
+For precommits, this timestamp is used to construct the [CommitSig that is included in the block in the LastCommit](https://github.com/tendermint/tendermint/blob/e8013281281985e3ada7819f42502b09623d24a0/types/block.go#L754) field.
+For prevotes, this field is unused.
+Proposer-based timestamps will use the [RoundState.Proposal](https://github.com/tendermint/tendermint/blob/c3ae6f5b58e07b29c62bfdc5715b6bf8ae5ee951/internal/consensus/types/round_state.go#L76) timestamp to construct the `signedBytes` `CommitSig`.
+This timestamp is therefore no longer useful and will be dropped.
+
+`Vote` will be updated as follows:
+
+```diff
+type Vote struct {
+	Type             tmproto.SignedMsgType `json:"type"`
+	Height           int64                 `json:"height"`
+	Round            int32                 `json:"round"`    
+	BlockID          BlockID               `json:"block_id"` // zero if vote is nil.
+--	Timestamp        time.Time             `json:"timestamp"`
+	ValidatorAddress Address               `json:"validator_address"`
+	ValidatorIndex   int32                 `json:"validator_index"`
+	Signature        []byte                `json:"signature"`
+}
+```
+
+### New consensus parameters
+
+The proposer-based timestamp specification includes multiple new parameters that must be the same among all validators.
+These parameters are `PRECISION`, `MSGDELAY`, and `ACCURACY`.
+
+The `PRECISION` and `MSGDELAY` parameters are used to determine if the proposed timestamp is acceptable.
+A validator will only Prevote a proposal if the proposal timestamp is considered `timely`.
+A proposal timestamp is considered `timely` if it is within `PRECISION` and `MSGDELAY` of the Unix time known to the validator.
+More specifically, a proposal timestamp is `timely` if `validatorLocalTime - PRECISION < proposalTime < validatorLocalTime + PRECISION + MSGDELAY`. 
+
+Because the `PRECISION` and `MSGDELAY` parameters must be the same across all validators, they will be added to the [consensus parameters](https://github.com/tendermint/tendermint/blob/master/proto/tendermint/types/params.proto#L13) as [durations](https://developers.google.com/protocol-buffers/docs/reference/google.protobuf#google.protobuf.Duration).
+
+The proposer-based timestamp specification also includes a [new ACCURACY parameter](https://github.com/tendermint/spec/blob/master/spec/consensus/proposer-based-timestamp/pbts-sysmodel_001_draft.md#pbts-clocksync-external0).
+Intuitively, `ACCURACY` represents the difference between the ‘real’ time and the currently known time of correct validators.
+The currently known Unix time of any validator is always somewhat different from real time.
+`ACCURACY` is the largest such difference between each validator's time and real time taken as an absolute value. 
+This is not something a computer can determine on its own and must be specified as an estimate by community running a Tendermint-based chain.
+It is used in the new algorithm to [calculate a timeout for the propose step](https://github.com/tendermint/spec/blob/master/spec/consensus/proposer-based-timestamp/pbts-algorithm_001_draft.md#pbts-alg-startround0).
+`ACCURACY` is assumed to be the same across all validators and therefore should be included as a consensus parameter.
+
+The consensus will be updated to include this `Timestamp` field as follows:
+
+```diff
+type ConsensusParams struct {
+	Block     BlockParams     `json:"block"`
+	Evidence  EvidenceParams  `json:"evidence"`
+	Validator ValidatorParams `json:"validator"`
+	Version   VersionParams   `json:"version"`
++	Timestamp TimestampParams `json:"timestamp"`
+}
+```
+
+```go
+type TimestampParams struct {
+	Accuracy  time.Duration `json:"accuracy"`
+	Precision time.Duration `json:"precision"`
+	MsgDelay  time.Duration `json:"msg_delay"`
+}
+```
+
+### Changes to `Header`
+
+The [Header](https://github.com/tendermint/tendermint/blob/a419f4df76fe4aed668a6c74696deabb9fe73211/types/block.go#L338) struct currently contains a timestamp.
+This timestamp is set as the `BFTtime` derived from the block's `LastCommit.CommitSig` timestamps.
+This timestamp will no longer be derived from the `LastCommit.CommitSig` timestamps and will instead be included directly into the block's `LastCommit`.
+This timestamp will therfore be identical in both the `Header` and the `LastCommit`.
+To clarify that the timestamp in the header corresponds to the `LastCommit`'s time, we will rename this timestamp field to `last_timestamp`.
+
+`Header` will be updated as follows:
+
+```diff
+type Header struct {
+	// basic block info
+	Version       version.Consensus `json:"version"`
+	ChainID       string            `json:"chain_id"`
+	Height        int64             `json:"height"`
+--	Time          time.Time         `json:"time"`
++	LastTimestamp time.Time         `json:"last_timestamp"`
+
+	// prev block info
+	LastBlockID BlockID `json:"last_block_id"`
+
+	// hashes of block data
+	LastCommitHash tmbytes.HexBytes `json:"last_commit_hash"`
+	DataHash       tmbytes.HexBytes `json:"data_hash"`
+
+	// hashes from the app output from the prev block
+	ValidatorsHash     tmbytes.HexBytes `json:"validators_hash"`
+	NextValidatorsHash tmbytes.HexBytes `json:"next_validators_hash"`
+	ConsensusHash      tmbytes.HexBytes `json:"consensus_hash"`
+	AppHash            tmbytes.HexBytes `json:"app_hash"`
+
+	// root hash of all results from the txs from the previous block
+	LastResultsHash tmbytes.HexBytes `json:"last_results_hash"`
+
+	// consensus info
+	EvidenceHash    tmbytes.HexBytes `json:"evidence_hash"`
+	ProposerAddress Address          `json:"proposer_address"`
+}
+```
+
+### Changes to the block proposal step
+
+#### Proposer selects proposal timestamp
+
+The proposal logic already [sets the Unix time known to the validator](https://github.com/tendermint/tendermint/blob/2abfe20114ee3bb3adfee817589033529a804e4d/types/proposal.go#L44) into the `Proposal` message.
+This satisfies the proposer-based timestamp specification and does not need to change. 
+
+#### Proposer selects block timestamp
+
+The proposal timestamp that was decided in height `H-1` will be stored in the `State` struct's in the `RoundState.LastCommit` field.
+The proposer will select this timestamp to use as the block timestamp at height `H`.
+
+#### Proposer waits
+
+Block timestamps must be monotonically increasing.
+In `BFTTime`, if a validator’s clock was behind, the [validator added 1 millisecond to the previous block’s time and used that in its vote messages](https://github.com/tendermint/tendermint/blob/e8013281281985e3ada7819f42502b09623d24a0/internal/consensus/state.go#L2246).
+A goal of adding proposer-based timestamps is to enforce some degree of clock synchronization, so having a mechanism that completely ignores the Unix time of the validator time no longer works.
+
+Validator clocks will not be perfectly in sync.
+Therefore, the proposer’s current known Unix time may be less than the `LastCommit.Timestamp`.
+If the proposer’s current known Unix time is less than the `LastCommit.Timestamp`, the proposer will sleep until its known Unix time exceeds `LastCommit.Timestamp`.
+
+This change will require amending the [defaultDecideProposal](https://github.com/tendermint/tendermint/blob/822893615564cb20b002dd5cf3b42b8d364cb7d9/internal/consensus/state.go#L1180) method.
+This method should now block until the proposer’s time is greater than `LastCommit.Timestamp`.
+
+#### Changes to the propose step timeout
+
+Currently, a validator waiting for a proposal will proceed past the propose step if the configured propose timeout is reached and no proposal is seen.
+Proposer-based timestamps requires changing this timeout logic. 
+
+The proposer will now wait until its current known Unix time exceeds the `LastCommit.Timestamp` to propose a block.
+The validators must now take this and some other factors into account when deciding when to timeout the propose step.
+Specifically, the propose step timeout must also take into account potential inaccuracy in the validator’s clock and in the clock of the proposer.
+Additionally, there may be a delay communicating the proposal message from the proposer to the other validators. 
+
+Therefore, validators waiting for a proposal must wait until after the `LastCommit.Timestamp` before timing out.
+To account for possible inaccuracy in its own clock, inaccuracy in the proposer’s clock, and message delay, validators waiting for a proposal will wait until `LastCommit.Timesatmp + 2*ACCURACY + MSGDELAY`.
+ The spec defines this as `waitingTime`.
+ 
+The [propose step’s timeout is set in enterPropose](https://github.com/tendermint/tendermint/blob/822893615564cb20b002dd5cf3b42b8d364cb7d9/internal/consensus/state.go#L1108) in `state.go`. 
+`enterPropose` will be changed to calculate waiting time using the new consensus parameters.
+The timeout in `enterPropose` will then be set as the maximum of `waitingTime` and the [configured proposal step timeout](https://github.com/tendermint/tendermint/blob/dc7c212c41a360bfe6eb38a6dd8c709bbc39aae7/config/config.go#L1013).
+
+### Changes to validation rules
+
+The rules for validating that a proposal is valid will need slight modification to implement proposer-based timestamps.
+Specifically, we will change the validation logic to ensure that the proposal timestamp is `timely` and we will modify the way the block timestamp is validated as well.
+
+#### Proposal timestamp validation
+
+Adding proposal timestamp validation is a reasonably straightforward change.
+The current Unix time known to the proposer is already included in the [Proposal message](https://github.com/tendermint/tendermint/blob/dc7c212c41a360bfe6eb38a6dd8c709bbc39aae7/types/proposal.go#L31).
+Once the proposal is received, the complete message is stored in the `RoundState.Proposal` field.
+The precommit and prevote validation logic does not currently use this timestamp.
+This validation logic will be updated to check that the proposal timestamp is within `PRECISION` of the current Unix time known to the validators.
+If the timestamp is not within `PRECISION` of the current Unix time known to the validator, the proposal will not be considered it valid.
+The validator will also check that the proposal time is greater than the block timestamp from the previous height.
+
+If no valid proposal is received by the proposal timeout, the validator will prevote nil.
+This is identical to the current logic.
+
+#### Block timestamp validation
+
+The [validBlock function](https://github.com/tendermint/tendermint/blob/c3ae6f5b58e07b29c62bfdc5715b6bf8ae5ee951/state/validation.go#L14) currently [validates the proposed block timestamp in three ways](https://github.com/tendermint/tendermint/blob/c3ae6f5b58e07b29c62bfdc5715b6bf8ae5ee951/state/validation.go#L118).
+First, the validation logic checks that this timestamp is greater than the previous block’s timestamp.
+Additionally, it validates that the block timestamp is correctly calculated as the weighted median of the timestamps in the [block’s LastCommit](https://github.com/tendermint/tendermint/blob/e8013281281985e3ada7819f42502b09623d24a0/types/block.go#L48).
+Finally, the logic also authenticates the timestamps in the `LastCommit`.
+The cryptographic signature in each `CommitSig` is created by signing a hash of fields in the block with the validator’s private key.
+One of the items in this `signedBytes` hash is derived from the timestamp in the `CommitSig`.
+To authenticate the `CommitSig` timestamp, the validator builds a hash of fields that includes the timestamp and checks this hash against the provided signature. 
+This takes place in the [VerifyCommit function](https://github.com/tendermint/tendermint/blob/e8013281281985e3ada7819f42502b09623d24a0/types/validation.go#L25).
+
+The logic to validate that the block timestamp is greater than the previous block’s timestamp also works for proposer-based timestamps and will not change.
+
+`BFTTime` validation is no longer applicable and will be removed.
+Validators will no longer check that the block timestamp is a weighted median of `LastCommit` timestamps.
+This will mean removing the call to [MedianTime in the validateBlock function](https://github.com/tendermint/tendermint/blob/4db71da68e82d5cb732b235eeb2fd69d62114b45/state/validation.go#L117).
+The `MedianTime` function can be completely removed. 
+The `LastCommit` timestamps may also be removed. 
+
+The `signedBytes` validation logic in `VerifyCommit` will be slightly altered.
+The `CommitSig`s in the block’s `LastCommit` will no longer each contain a timestamp.
+The validation logic will instead include the `LastCommit.Timestamp` in the hash of fields for generating the `signedBytes`.
+The cryptographic signatures included in the `CommitSig`s will then be checked against this `signedBytes` hash to authenticate the timestamp.
+Specifically, the `VerifyCommit` function will be updated to use this new timestamp.  
+
+### Changes to the prevote step
+
+Currently, a validator will prevote a proposal in one of three cases:
+
+* Case 1:  Validator has no locked block and receives a valid proposal.
+* Case 2:  Validator has a locked block and receives a valid proposal matching its locked block.
+* Case 3:  Validator has a locked block, sees a valid proposal not matching its locked block but sees +⅔ prevotes for the new proposal’s block. 
+
+The only change we will make to the prevote step is to what a validator considers a valid proposal as detailed above.
+
+### Changes to the precommit step
+
+The precommit step will not require much modification.
+Its proposal validation rules will change in the same ways that validation will change in the prevote step.
+
+### Changes to locking a block
+When a validator receives a valid proposed block and +2/3 prevotes for that block, it stores the block as its ‘locked block’ in the [RoundState.ValidBlock](https://github.com/tendermint/tendermint/blob/e8013281281985e3ada7819f42502b09623d24a0/internal/consensus/types/round_state.go#L85) field.
+In each subsequent round it will prevote that block.
+A validator will only change which block it has locked if it sees +2/3 prevotes for a different block.
+
+This mechanism will remain largely unchanged.
+The only difference is the addition of proposal timestamp validation.
+A validator will prevote nil in a round if the proposal message it received is not `timely`.
+Prevoting nil in this case will not cause a validator to ‘unlock’ its locked block.
+This difference is an incidental result of the changes to prevote validation.
+It is included in this design for completeness and to clarify that no additional changes will be made to block locking. 
+
+### Remove voteTime Completely
+
+[voteTime](https://github.com/tendermint/tendermint/blob/822893615564cb20b002dd5cf3b42b8d364cb7d9/internal/consensus/state.go#L2229) is a mechanism for calculating the next `BFTTime` given both the validator's current known Unix time and the previous block timestamp.
+If the previous block timestamp is greater than the validator's current known Unix time, then voteTime returns a value one millisecond greater than the previous block timestamp.
+This logic is used in multiple places and is no longer needed for proposer-based timestamps.
+It should therefore be removed completely.
+
+## Future Improvements
+
+* Implement BLS signature aggregation.
+By removing fields from the `Precommit` messages, we are able to aggregate signatures.
+
+## Consequences
+
+### Positive
+
+* `<2/3` of validators can no longer influence block timestamps.
+* Block timestamp will have stronger correspondence to real time.
+* Improves the reliability of light client block verification.
+* Enables BLS signature aggregation.
+* Enables evidence handling to use time instead of height for evidence validity.
+
+### Neutral
+
+* Alters Tendermint’s liveness properties.
+Liveness now requires that all correct validators have synchronized clocks within a bound.
+Liveness will now also require that validators’ clocks move forward, which was not required under `BFTTime`.
+
+### Negative
+
+* May increase the length of the propose step if there is a large skew between the previous proposer and the current proposer’s local Unix time.
+This skew will be bound by the `PRECISION` value, so it is unlikely to be too large.
+
+* Current chains with block timestamps far in the future will either need to pause consensus until after the erroneous block timestamp or must maintain synchronized but very inaccurate clocks.
+
+## References
+
+* [PBTS Spec](https://github.com/tendermint/spec/tree/master/spec/consensus/proposer-based-timestamp)
+* [BFTTime spec](https://github.com/tendermint/spec/blob/master/spec/consensus/bft-time.md)
--- a/docs/architecture/img/pbts-message.png
+++ b/docs/architecture/img/pbts-message.png
--- a/go.mod
+++ b/go.mod
@@ -13,7 +13,7 @@ require (
 	github.com/go-kit/kit v0.11.0
 	github.com/gogo/protobuf v1.3.2
 	github.com/golang/protobuf v1.5.2
-	github.com/golangci/golangci-lint v1.41.1
+	github.com/golangci/golangci-lint v1.42.0
 	github.com/google/orderedcode v0.0.1
 	github.com/google/uuid v1.3.0
 	github.com/gorilla/websocket v1.4.2
@@ -35,8 +35,8 @@ require (
 	github.com/stretchr/testify v1.7.0
 	github.com/tendermint/tm-db v0.6.4
 	github.com/vektra/mockery/v2 v2.9.0
-	golang.org/x/crypto v0.0.0-20210314154223-e6e6c4f2bb5b
-	golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4
+	golang.org/x/crypto v0.0.0-20210513164829-c07d793c2f9a
+	golang.org/x/net v0.0.0-20210428140749-89ef3d95e781
 	google.golang.org/grpc v1.40.0
 	gopkg.in/check.v1 v1.0.0-20200902074654-038fdea0a05b // indirect
 	pgregory.net/rapid v0.4.7
--- a/go.sum
+++ b/go.sum
@@ -44,6 +44,8 @@ cloud.google.com/go/storage v1.8.0/go.mod h1:Wv1Oy7z6Yz3DshWRJFhqM/UCfaWIRTdp0RX
 cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9ullr3+Kg0=
 contrib.go.opencensus.io/exporter/stackdriver v0.13.4/go.mod h1:aXENhDJ1Y4lIg4EUaVTwzvYETVNZk10Pu26tevFKLUc=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
+github.com/Antonboom/errname v0.1.3 h1:qKV8gSzPzBqrG/q0dgraZXJCymWt6KuD9+Y7K7xtzN8=
+github.com/Antonboom/errname v0.1.3/go.mod h1:jRXo3m0E0EuCnK3wbsSVH3X55Z4iTDLl6ZfCxwFj4TM=
 github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78 h1:w+iIsaOQNcT7OZ575w+acHgRric5iCyQh+xv+KJ4HB8=
 github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78/go.mod h1:LmzpDX56iTiv29bbRTIsUNlaFfuhWRQBWjQdVyAevI8=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
@@ -73,7 +75,7 @@ github.com/OpenPeeDeeP/depguard v1.0.1 h1:VlW4R6jmBIv3/u1JNlawEvJMM4J+dPORPaZasQ
 github.com/OpenPeeDeeP/depguard v1.0.1/go.mod h1:xsIw86fROiiwelg+jB2uM9PiKihMMmUx/1V+TNhjQvM=
 github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWXgklEdEo=
 github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI=
-github.com/StackExchange/wmi v0.0.0-20190523213315-cbe66965904d/go.mod h1:3eOhrUMpNV+6aFIbp5/iudMxNCF27Vw2OZgy4xEx0Fg=
+github.com/StackExchange/wmi v1.2.1/go.mod h1:rcmrprowKIVzvc+NUiLncP2uuArMWLCbu9SBzvHz7e8=
 github.com/VividCortex/gohistogram v1.0.0 h1:6+hBz+qvs0JOrrNhhmR7lFxo5sINxBCGXrdtl/UvroE=
 github.com/VividCortex/gohistogram v1.0.0/go.mod h1:Pf5mBqqDxYaXu3hDrrU+w6nw50o/4+TcAqDqk/vUH7g=
 github.com/Workiva/go-datastructures v1.0.53 h1:J6Y/52yX10Xc5JjXmGtWoSSxs3mZnGSaq37xZZh7Yig=
@@ -176,8 +178,8 @@ github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:ma
 github.com/cpuguy83/go-md2man/v2 v2.0.0/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
 github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
-github.com/daixiang0/gci v0.2.8 h1:1mrIGMBQsBu0P7j7m1M8Lb+ZeZxsZL+jyGX4YoMJJpg=
-github.com/daixiang0/gci v0.2.8/go.mod h1:+4dZ7TISfSmqfAGv59ePaHfNzgGtIkHAhhdKggP1JAc=
+github.com/daixiang0/gci v0.2.9 h1:iwJvwQpBZmMg31w+QQ6jsyZ54KEATn6/nfARbBNW294=
+github.com/daixiang0/gci v0.2.9/go.mod h1:+4dZ7TISfSmqfAGv59ePaHfNzgGtIkHAhhdKggP1JAc=
 github.com/davecgh/go-spew v0.0.0-20161028175848-04cdfd42973b/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v0.0.0-20171005155431-ecdeabc65495/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -257,7 +259,7 @@ github.com/go-kit/log v0.1.0/go.mod h1:zbhenjAZHb184qTLMA9ZjW7ThYL0H2mk7Q6pNt4vb
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
 github.com/go-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG1KdI/P7A=
-github.com/go-ole/go-ole v1.2.4/go.mod h1:XCwSNxSkXRo4vlyPy93sltvi/qJq0jqQhjqQNIwKuxM=
+github.com/go-ole/go-ole v1.2.5/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0=
 github.com/go-playground/locales v0.12.1/go.mod h1:IUMDtCfWo/w/mtMfIE/IG2K+Ey3ygWanZIBtBW0W2TM=
 github.com/go-playground/universal-translator v0.16.0/go.mod h1:1AnU7NaIRDWWzGEKwgtJRd2xk99HeFyHw3yid4rvQIY=
 github.com/go-redis/redis v6.15.8+incompatible/go.mod h1:NAIEuMOZ/fxfXJIrKDQDz8wamY7mA7PouImQ2Jvg6kA=
@@ -289,8 +291,8 @@ github.com/go-zookeeper/zk v1.0.2/go.mod h1:nOB03cncLtlp4t+UAkGSV+9beXP/akpekBwL
 github.com/gobwas/glob v0.2.3 h1:A4xDbljILXROh+kObIiy5kIaPYD8e96x1tgBhUI5J+Y=
 github.com/gobwas/glob v0.2.3/go.mod h1:d3Ez4x06l9bZtSvzIay5+Yzi0fmZzPgnTbPcKjJAkT8=
 github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
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@@ -341,8 +343,8 @@ github.com/golangci/go-misc v0.0.0-20180628070357-927a3d87b613 h1:9kfjN3AdxcbsZB
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@@ -394,6 +396,7 @@ github.com/google/uuid v0.0.0-20161128191214-064e2069ce9c/go.mod h1:TIyPZe4Mgqvf
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@@ -549,8 +552,8 @@ github.com/lann/builder v0.0.0-20180802200727-47ae307949d0 h1:SOEGU9fKiNWd/HOJuq
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@@ -598,8 +601,8 @@ github.com/mbilski/exhaustivestruct v1.2.0 h1:wCBmUnSYufAHO6J4AVWY6ff+oxWxsVFrwg
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@@ -632,7 +635,7 @@ github.com/mohae/deepcopy v0.0.0-20170929034955-c48cc78d4826/go.mod h1:TaXosZuwd
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@@ -650,8 +653,8 @@ github.com/nbutton23/zxcvbn-go v0.0.0-20210217022336-fa2cb2858354 h1:4kuARK6Y6Fx
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@@ -671,14 +674,15 @@ github.com/onsi/ginkgo v1.7.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+W
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@@ -769,8 +773,8 @@ github.com/rs/zerolog v1.23.0 h1:UskrK+saS9P9Y789yNNulYKdARjPZuS35B8gJF2x60g=
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@@ -819,7 +823,6 @@ github.com/spf13/cast v1.3.1/go.mod h1:Qx5cxh0v+4UWYiBimWS+eyWzqEqokIECu5etghLkU
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@@ -862,18 +865,18 @@ github.com/tecbot/gorocksdb v0.0.0-20191217155057-f0fad39f321c h1:g+WoO5jjkqGAzH
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@@ -888,8 +891,8 @@ github.com/ultraware/whitespace v0.0.4 h1:If7Va4cM03mpgrNH9k49/VOicWpGoG70XPBFFO
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@@ -958,8 +961,9 @@ golang.org/x/crypto v0.0.0-20200323165209-0ec3e9974c59/go.mod h1:LzIPMQfyMNhhGPh
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@@ -1257,8 +1263,10 @@ golang.org/x/tools v0.0.0-20210105154028-b0ab187a4818/go.mod h1:emZCQorbCU4vsT4f
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@@ -1428,8 +1436,8 @@ honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWh
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-honnef.co/go/tools v0.2.0 h1:ws8AfbgTX3oIczLPNPCu5166oBg9ST2vNs0rcht+mDE=
-honnef.co/go/tools v0.2.0/go.mod h1:lPVVZ2BS5TfnjLyizF7o7hv7j9/L+8cZY2hLyjP9cGY=
+honnef.co/go/tools v0.2.1 h1:/EPr//+UMMXwMTkXvCCoaJDq8cpjMO80Ou+L4PDo2mY=
+honnef.co/go/tools v0.2.1/go.mod h1:lPVVZ2BS5TfnjLyizF7o7hv7j9/L+8cZY2hLyjP9cGY=
 mvdan.cc/gofumpt v0.1.1 h1:bi/1aS/5W00E2ny5q65w9SnKpWEF/UIOqDYBILpo9rA=
 mvdan.cc/gofumpt v0.1.1/go.mod h1:yXG1r1WqZVKWbVRtBWKWX9+CxGYfA51nSomhM0woR48=
 mvdan.cc/interfacer v0.0.0-20180901003855-c20040233aed h1:WX1yoOaKQfddO/mLzdV4wptyWgoH/6hwLs7QHTixo0I=
--- a/internal/blocksync/v0/reactor.go
+++ b/internal/blocksync/v0/reactor.go
@@ -29,10 +29,10 @@ var (
 	// TODO: Remove once p2p refactor is complete.
 	// ref: https://github.com/tendermint/tendermint/issues/5670
 	ChannelShims = map[p2p.ChannelID]*p2p.ChannelDescriptorShim{
-		BlockchainChannel: {
+		BlockSyncChannel: {
 			MsgType: new(bcproto.Message),
 			Descriptor: &p2p.ChannelDescriptor{
-				ID:                  byte(BlockchainChannel),
+				ID:                  byte(BlockSyncChannel),
 				Priority:            5,
 				SendQueueCapacity:   1000,
 				RecvBufferCapacity:  1024,
@@ -44,8 +44,8 @@ var (
 )

 const (
-	// BlockchainChannel is a channel for blocks and status updates
-	BlockchainChannel = p2p.ChannelID(0x40)
+	// BlockSyncChannel is a channel for blocks and status updates
+	BlockSyncChannel = p2p.ChannelID(0x40)

 	trySyncIntervalMS = 10

@@ -60,7 +60,7 @@ const (
 )

 type consensusReactor interface {
-	// For when we switch from blockchain reactor and block sync to the consensus
+	// For when we switch from block sync reactor to the consensus
 	// machine.
 	SwitchToConsensus(state sm.State, skipWAL bool)
 }
@@ -87,17 +87,17 @@ type Reactor struct {
 	consReactor consensusReactor
 	blockSync   *tmSync.AtomicBool

-	blockchainCh *p2p.Channel
-	// blockchainOutBridgeCh defines a channel that acts as a bridge between sending Envelope
-	// messages that the reactor will consume in processBlockchainCh and receiving messages
+	blockSyncCh *p2p.Channel
+	// blockSyncOutBridgeCh defines a channel that acts as a bridge between sending Envelope
+	// messages that the reactor will consume in processBlockSyncCh and receiving messages
 	// from the peer updates channel and other goroutines. We do this instead of directly
-	// sending on blockchainCh.Out to avoid race conditions in the case where other goroutines
-	// send Envelopes directly to the to blockchainCh.Out channel, since processBlockchainCh
-	// may close the blockchainCh.Out channel at the same time that other goroutines send to
-	// blockchainCh.Out.
-	blockchainOutBridgeCh chan p2p.Envelope
-	peerUpdates           *p2p.PeerUpdates
-	closeCh               chan struct{}
+	// sending on blockSyncCh.Out to avoid race conditions in the case where other goroutines
+	// send Envelopes directly to the to blockSyncCh.Out channel, since processBlockSyncCh
+	// may close the blockSyncCh.Out channel at the same time that other goroutines send to
+	// blockSyncCh.Out.
+	blockSyncOutBridgeCh chan p2p.Envelope
+	peerUpdates          *p2p.PeerUpdates
+	closeCh              chan struct{}

 	requestsCh <-chan BlockRequest
 	errorsCh   <-chan peerError
@@ -119,7 +119,7 @@ func NewReactor(
 	blockExec *sm.BlockExecutor,
 	store *store.BlockStore,
 	consReactor consensusReactor,
-	blockchainCh *p2p.Channel,
+	blockSyncCh *p2p.Channel,
 	peerUpdates *p2p.PeerUpdates,
 	blockSync bool,
 	metrics *cons.Metrics,
@@ -137,23 +137,23 @@ func NewReactor(
 	errorsCh := make(chan peerError, maxPeerErrBuffer) // NOTE: The capacity should be larger than the peer count.

 	r := &Reactor{
-		initialState:          state,
-		blockExec:             blockExec,
-		store:                 store,
-		pool:                  NewBlockPool(startHeight, requestsCh, errorsCh),
-		consReactor:           consReactor,
-		blockSync:             tmSync.NewBool(blockSync),
-		requestsCh:            requestsCh,
-		errorsCh:              errorsCh,
-		blockchainCh:          blockchainCh,
-		blockchainOutBridgeCh: make(chan p2p.Envelope),
-		peerUpdates:           peerUpdates,
-		closeCh:               make(chan struct{}),
-		metrics:               metrics,
-		syncStartTime:         time.Time{},
+		initialState:         state,
+		blockExec:            blockExec,
+		store:                store,
+		pool:                 NewBlockPool(startHeight, requestsCh, errorsCh),
+		consReactor:          consReactor,
+		blockSync:            tmSync.NewBool(blockSync),
+		requestsCh:           requestsCh,
+		errorsCh:             errorsCh,
+		blockSyncCh:          blockSyncCh,
+		blockSyncOutBridgeCh: make(chan p2p.Envelope),
+		peerUpdates:          peerUpdates,
+		closeCh:              make(chan struct{}),
+		metrics:              metrics,
+		syncStartTime:        time.Time{},
 	}

-	r.BaseService = *service.NewBaseService(logger, "Blockchain", r)
+	r.BaseService = *service.NewBaseService(logger, "BlockSync", r)
 	return r, nil
 }

@@ -174,7 +174,7 @@ func (r *Reactor) OnStart() error {
 		go r.poolRoutine(false)
 	}

-	go r.processBlockchainCh()
+	go r.processBlockSyncCh()
 	go r.processPeerUpdates()

 	return nil
@@ -199,7 +199,7 @@ func (r *Reactor) OnStop() {
 	// Wait for all p2p Channels to be closed before returning. This ensures we
 	// can easily reason about synchronization of all p2p Channels and ensure no
 	// panics will occur.
-	<-r.blockchainCh.Done()
+	<-r.blockSyncCh.Done()
 	<-r.peerUpdates.Done()
 }

@@ -214,7 +214,7 @@ func (r *Reactor) respondToPeer(msg *bcproto.BlockRequest, peerID types.NodeID)
 			return
 		}

-		r.blockchainCh.Out <- p2p.Envelope{
+		r.blockSyncCh.Out <- p2p.Envelope{
 			To:      peerID,
 			Message: &bcproto.BlockResponse{Block: blockProto},
 		}
@@ -223,16 +223,16 @@ func (r *Reactor) respondToPeer(msg *bcproto.BlockRequest, peerID types.NodeID)
 	}

 	r.Logger.Info("peer requesting a block we do not have", "peer", peerID, "height", msg.Height)
-	r.blockchainCh.Out <- p2p.Envelope{
+	r.blockSyncCh.Out <- p2p.Envelope{
 		To:      peerID,
 		Message: &bcproto.NoBlockResponse{Height: msg.Height},
 	}
 }

-// handleBlockchainMessage handles envelopes sent from peers on the
-// BlockchainChannel. It returns an error only if the Envelope.Message is unknown
+// handleBlockSyncMessage handles envelopes sent from peers on the
+// BlockSyncChannel. It returns an error only if the Envelope.Message is unknown
 // for this channel. This should never be called outside of handleMessage.
-func (r *Reactor) handleBlockchainMessage(envelope p2p.Envelope) error {
+func (r *Reactor) handleBlockSyncMessage(envelope p2p.Envelope) error {
 	logger := r.Logger.With("peer", envelope.From)

 	switch msg := envelope.Message.(type) {
@@ -249,7 +249,7 @@ func (r *Reactor) handleBlockchainMessage(envelope p2p.Envelope) error {
 		r.pool.AddBlock(envelope.From, block, block.Size())

 	case *bcproto.StatusRequest:
-		r.blockchainCh.Out <- p2p.Envelope{
+		r.blockSyncCh.Out <- p2p.Envelope{
 			To: envelope.From,
 			Message: &bcproto.StatusResponse{
 				Height: r.store.Height(),
@@ -288,8 +288,8 @@ func (r *Reactor) handleMessage(chID p2p.ChannelID, envelope p2p.Envelope) (err
 	r.Logger.Debug("received message", "message", envelope.Message, "peer", envelope.From)

 	switch chID {
-	case BlockchainChannel:
-		err = r.handleBlockchainMessage(envelope)
+	case BlockSyncChannel:
+		err = r.handleBlockSyncMessage(envelope)

 	default:
 		err = fmt.Errorf("unknown channel ID (%d) for envelope (%v)", chID, envelope)
@@ -298,30 +298,30 @@ func (r *Reactor) handleMessage(chID p2p.ChannelID, envelope p2p.Envelope) (err
 	return err
 }

-// processBlockchainCh initiates a blocking process where we listen for and handle
-// envelopes on the BlockchainChannel and blockchainOutBridgeCh. Any error encountered during
-// message execution will result in a PeerError being sent on the BlockchainChannel.
+// processBlockSyncCh initiates a blocking process where we listen for and handle
+// envelopes on the BlockSyncChannel and blockSyncOutBridgeCh. Any error encountered during
+// message execution will result in a PeerError being sent on the BlockSyncChannel.
 // When the reactor is stopped, we will catch the signal and close the p2p Channel
 // gracefully.
-func (r *Reactor) processBlockchainCh() {
-	defer r.blockchainCh.Close()
+func (r *Reactor) processBlockSyncCh() {
+	defer r.blockSyncCh.Close()

 	for {
 		select {
-		case envelope := <-r.blockchainCh.In:
-			if err := r.handleMessage(r.blockchainCh.ID, envelope); err != nil {
-				r.Logger.Error("failed to process message", "ch_id", r.blockchainCh.ID, "envelope", envelope, "err", err)
-				r.blockchainCh.Error <- p2p.PeerError{
+		case envelope := <-r.blockSyncCh.In:
+			if err := r.handleMessage(r.blockSyncCh.ID, envelope); err != nil {
+				r.Logger.Error("failed to process message", "ch_id", r.blockSyncCh.ID, "envelope", envelope, "err", err)
+				r.blockSyncCh.Error <- p2p.PeerError{
 					NodeID: envelope.From,
 					Err:    err,
 				}
 			}

-		case envelope := <-r.blockchainOutBridgeCh:
-			r.blockchainCh.Out <- envelope
+		case envelope := <-r.blockSyncOutBridgeCh:
+			r.blockSyncCh.Out <- envelope

 		case <-r.closeCh:
-			r.Logger.Debug("stopped listening on blockchain channel; closing...")
+			r.Logger.Debug("stopped listening on block sync channel; closing...")
 			return

 		}
@@ -340,7 +340,7 @@ func (r *Reactor) processPeerUpdate(peerUpdate p2p.PeerUpdate) {
 	switch peerUpdate.Status {
 	case p2p.PeerStatusUp:
 		// send a status update the newly added peer
-		r.blockchainOutBridgeCh <- p2p.Envelope{
+		r.blockSyncOutBridgeCh <- p2p.Envelope{
 			To: peerUpdate.NodeID,
 			Message: &bcproto.StatusResponse{
 				Base:   r.store.Base(),
@@ -406,13 +406,13 @@ func (r *Reactor) requestRoutine() {
 			return

 		case request := <-r.requestsCh:
-			r.blockchainOutBridgeCh <- p2p.Envelope{
+			r.blockSyncOutBridgeCh <- p2p.Envelope{
 				To:      request.PeerID,
 				Message: &bcproto.BlockRequest{Height: request.Height},
 			}

 		case pErr := <-r.errorsCh:
-			r.blockchainCh.Error <- p2p.PeerError{
+			r.blockSyncCh.Error <- p2p.PeerError{
 				NodeID: pErr.peerID,
 				Err:    pErr.err,
 			}
@@ -423,7 +423,7 @@ func (r *Reactor) requestRoutine() {
 			go func() {
 				defer r.poolWG.Done()

-				r.blockchainOutBridgeCh <- p2p.Envelope{
+				r.blockSyncOutBridgeCh <- p2p.Envelope{
 					Broadcast: true,
 					Message:   &bcproto.StatusRequest{},
 				}
@@ -554,14 +554,14 @@ FOR_LOOP:
 				// NOTE: We've already removed the peer's request, but we still need
 				// to clean up the rest.
 				peerID := r.pool.RedoRequest(first.Height)
-				r.blockchainCh.Error <- p2p.PeerError{
+				r.blockSyncCh.Error <- p2p.PeerError{
 					NodeID: peerID,
 					Err:    err,
 				}

 				peerID2 := r.pool.RedoRequest(second.Height)
 				if peerID2 != peerID {
-					r.blockchainCh.Error <- p2p.PeerError{
+					r.blockSyncCh.Error <- p2p.PeerError{
 						NodeID: peerID2,
 						Err:    err,
 					}
--- a/internal/blocksync/v0/reactor_test.go
+++ b/internal/blocksync/v0/reactor_test.go
@@ -32,9 +32,9 @@ type reactorTestSuite struct {
 	reactors map[types.NodeID]*Reactor
 	app      map[types.NodeID]proxy.AppConns

-	blockchainChannels map[types.NodeID]*p2p.Channel
-	peerChans          map[types.NodeID]chan p2p.PeerUpdate
-	peerUpdates        map[types.NodeID]*p2p.PeerUpdates
+	blockSyncChannels map[types.NodeID]*p2p.Channel
+	peerChans         map[types.NodeID]chan p2p.PeerUpdate
+	peerUpdates       map[types.NodeID]*p2p.PeerUpdates

 	blockSync bool
 }
@@ -53,19 +53,19 @@ func setup(
 		"must specify at least one block height (nodes)")

 	rts := &reactorTestSuite{
-		logger:             log.TestingLogger().With("module", "blockchain", "testCase", t.Name()),
-		network:            p2ptest.MakeNetwork(t, p2ptest.NetworkOptions{NumNodes: numNodes}),
-		nodes:              make([]types.NodeID, 0, numNodes),
-		reactors:           make(map[types.NodeID]*Reactor, numNodes),
-		app:                make(map[types.NodeID]proxy.AppConns, numNodes),
-		blockchainChannels: make(map[types.NodeID]*p2p.Channel, numNodes),
-		peerChans:          make(map[types.NodeID]chan p2p.PeerUpdate, numNodes),
-		peerUpdates:        make(map[types.NodeID]*p2p.PeerUpdates, numNodes),
-		blockSync:          true,
+		logger:            log.TestingLogger().With("module", "block_sync", "testCase", t.Name()),
+		network:           p2ptest.MakeNetwork(t, p2ptest.NetworkOptions{NumNodes: numNodes}),
+		nodes:             make([]types.NodeID, 0, numNodes),
+		reactors:          make(map[types.NodeID]*Reactor, numNodes),
+		app:               make(map[types.NodeID]proxy.AppConns, numNodes),
+		blockSyncChannels: make(map[types.NodeID]*p2p.Channel, numNodes),
+		peerChans:         make(map[types.NodeID]chan p2p.PeerUpdate, numNodes),
+		peerUpdates:       make(map[types.NodeID]*p2p.PeerUpdates, numNodes),
+		blockSync:         true,
 	}

-	chDesc := p2p.ChannelDescriptor{ID: byte(BlockchainChannel)}
-	rts.blockchainChannels = rts.network.MakeChannelsNoCleanup(t, chDesc, new(bcproto.Message), int(chBuf))
+	chDesc := p2p.ChannelDescriptor{ID: byte(BlockSyncChannel)}
+	rts.blockSyncChannels = rts.network.MakeChannelsNoCleanup(t, chDesc, new(bcproto.Message), int(chBuf))

 	i := 0
 	for nodeID := range rts.network.Nodes {
@@ -161,7 +161,7 @@ func (rts *reactorTestSuite) addNode(t *testing.T,
 		blockExec,
 		blockStore,
 		nil,
-		rts.blockchainChannels[nodeID],
+		rts.blockSyncChannels[nodeID],
 		rts.peerUpdates[nodeID],
 		rts.blockSync,
 		cons.NopMetrics())
@@ -181,7 +181,7 @@ func (rts *reactorTestSuite) start(t *testing.T) {
 }

 func TestReactor_AbruptDisconnect(t *testing.T) {
-	config := cfg.ResetTestRoot("blockchain_reactor_test")
+	config := cfg.ResetTestRoot("block_sync_reactor_test")
 	defer os.RemoveAll(config.RootDir)

 	genDoc, privVals := factory.RandGenesisDoc(config, 1, false, 30)
@@ -216,7 +216,7 @@ func TestReactor_AbruptDisconnect(t *testing.T) {
 }

 func TestReactor_SyncTime(t *testing.T) {
-	config := cfg.ResetTestRoot("blockchain_reactor_test")
+	config := cfg.ResetTestRoot("block_sync_reactor_test")
 	defer os.RemoveAll(config.RootDir)

 	genDoc, privVals := factory.RandGenesisDoc(config, 1, false, 30)
@@ -239,7 +239,7 @@ func TestReactor_SyncTime(t *testing.T) {
 }

 func TestReactor_NoBlockResponse(t *testing.T) {
-	config := cfg.ResetTestRoot("blockchain_reactor_test")
+	config := cfg.ResetTestRoot("block_sync_reactor_test")
 	defer os.RemoveAll(config.RootDir)

 	genDoc, privVals := factory.RandGenesisDoc(config, 1, false, 30)
@@ -286,7 +286,7 @@ func TestReactor_BadBlockStopsPeer(t *testing.T) {
 	// See: https://github.com/tendermint/tendermint/issues/6005
 	t.SkipNow()

-	config := cfg.ResetTestRoot("blockchain_reactor_test")
+	config := cfg.ResetTestRoot("block_sync_reactor_test")
 	defer os.RemoveAll(config.RootDir)

 	maxBlockHeight := int64(48)
--- a/libs/pubsub/pubsub.go
+++ b/libs/pubsub/pubsub.go
@@ -507,7 +507,10 @@ func (state *state) send(msg interface{}, events []types.Event) error {
 			for clientID, subscription := range clientSubscriptions {
 				if cap(subscription.out) == 0 {
 					// block on unbuffered channel
-					subscription.out <- NewMessage(subscription.id, msg, events)
+					select {
+					case subscription.out <- NewMessage(subscription.id, msg, events):
+					case <-subscription.canceled:
+					}
 				} else {
 					// don't block on buffered channels
 					select {
--- a/node/setup.go
+++ b/node/setup.go
@@ -362,7 +362,7 @@ func createBlockchainReactor(

 		reactor, err := bcv0.NewReactor(
 			logger, state.Copy(), blockExec, blockStore, csReactor,
-			channels[bcv0.BlockchainChannel], peerUpdates, blockSync,
+			channels[bcv0.BlockSyncChannel], peerUpdates, blockSync,
 			metrics,
 		)
 		if err != nil {
@@ -727,7 +727,7 @@ func makeNodeInfo(
 	var bcChannel byte
 	switch config.BlockSync.Version {
 	case cfg.BlockSyncV0:
-		bcChannel = byte(bcv0.BlockchainChannel)
+		bcChannel = byte(bcv0.BlockSyncChannel)

 	case cfg.BlockSyncV2:
 		bcChannel = bcv2.BlockchainChannel
--- a/state/indexer/doc.go
+++ b/state/indexer/doc.go
@@ -0,0 +1,72 @@
+/*
+Package indexer defines Tendermint's block and transaction event indexing logic.
+
+Tendermint supports two primary means of block and transaction event indexing:
+
+1. A key-value sink via an embedded database with a proprietary query language.
+2. A Postgres-based sink.
+
+An ABCI application can emit events during block and transaction execution in the form
+
+   <abci.Event.Type>.<abci.EventAttributeKey>=<abci.EventAttributeValue>
+
+for example "transfer.amount=10000".
+
+An operator can enable one or both of the supported indexing sinks via the
+'tx-index.indexer' Tendermint configuration.
+
+Example:
+
+	[tx-index]
+	indexer = ["kv", "psql"]
+
+If an operator wants to completely disable indexing, they may simply just provide
+the "null" sink option in the configuration. All other sinks will be ignored if
+"null" is provided.
+
+If indexing is enabled, the indexer.Service will iterate over all enabled sinks
+and invoke block and transaction indexing via the appropriate IndexBlockEvents
+and IndexTxEvents methods.
+
+Note, the "kv" sink is considered deprecated and its query functionality is very
+limited, but does allow users to directly query for block and transaction events
+against Tendermint's RPC. Instead, operators are encouraged to use the "psql"
+indexing sink when more complex queries are required and for reliability purposes
+as PostgreSQL can scale.
+
+Prior to starting Tendermint with the "psql" indexing sink enabled, operators
+must ensure the following:
+
+1. The "psql" indexing sink is provided in Tendermint's configuration.
+2. A 'tx-index.psql-conn' value is provided that contains the PostgreSQL connection URI.
+3. The block and transaction event schemas have been created in the PostgreSQL database.
+
+Tendermint provides the block and transaction event schemas in the following
+path: state/indexer/sink/psql/schema.sql
+
+To create the schema in a PostgreSQL database, perform the schema query
+manually or invoke schema creation via the CLI:
+
+	$ psql <flags> -f state/indexer/sink/psql/schema.sql
+
+The "psql" indexing sink prohibits queries via RPC. When using a PostgreSQL sink,
+queries can and should be made directly against the database using SQL.
+
+The following are some example SQL queries against the database schema:
+
+* Query for all transaction events for a given transaction hash:
+
+	SELECT * FROM tx_events WHERE hash = '3E7D1F...';
+
+* Query for all transaction events for a given block height:
+
+	SELECT * FROM tx_events WHERE height = 25;
+
+* Query for transaction events that have a given type (i.e. value wildcard):
+
+	SELECT * FROM tx_events WHERE key LIKE '%transfer.recipient%';
+
+Note that if a complete abci.TxResult is needed, you will need to join "tx_events" with
+"tx_results" via a foreign key, to obtain contains the raw protobuf-encoded abci.TxResult.
+*/
+package indexer
--- a/test/e2e/pkg/testnet.go
+++ b/test/e2e/pkg/testnet.go
@@ -417,16 +417,6 @@ func (t Testnet) ArchiveNodes() []*Node {
 	return nodes
 }

-// RandomNode returns a random non-seed node.
-func (t Testnet) RandomNode() *Node {
-	for {
-		node := t.Nodes[rand.Intn(len(t.Nodes))]
-		if node.Mode != ModeSeed {
-			return node
-		}
-	}
-}
-
 // IPv6 returns true if the testnet is an IPv6 network.
 func (t Testnet) IPv6() bool {
 	return t.IP.IP.To4() == nil
--- a/test/e2e/runner/load.go
+++ b/test/e2e/runner/load.go
@@ -1,6 +1,7 @@
 package main

 import (
+	"container/ring"
 	"context"
 	"crypto/rand"
 	"errors"
@@ -95,32 +96,56 @@ func loadGenerate(ctx context.Context, chTx chan<- types.Tx, multiplier int, siz
 func loadProcess(ctx context.Context, testnet *e2e.Testnet, chTx <-chan types.Tx, chSuccess chan<- types.Tx) {
 	// Each worker gets its own client to each node, which allows for some
 	// concurrency while still bounding it.
-	clients := map[string]*rpchttp.HTTP{}

-	var err error
-	for tx := range chTx {
-		node := testnet.RandomNode()
+	clients := make([]*rpchttp.HTTP, 0, len(testnet.Nodes))

-		client, ok := clients[node.Name]
-		if !ok {
-			client, err = node.Client()
-			if err != nil {
-				continue
-			}
-
-			// check that the node is up
-			_, err = client.Health(ctx)
-			if err != nil {
-				continue
-			}
-
-			clients[node.Name] = client
+	for idx := range testnet.Nodes {
+		if testnet.Nodes[idx].Mode == e2e.ModeSeed {
+			continue
 		}
-
-		if _, err = client.BroadcastTxSync(ctx, tx); err != nil {
+		client, err := testnet.Nodes[idx].Client()
+		if err != nil {
 			continue
 		}

-		chSuccess <- tx
+		clients = append(clients, client)
+	}
+
+	if len(clients) == 0 {
+		panic("no clients to process load")
+	}
+
+	clientRing := ring.New(len(clients))
+	for idx := range clients {
+		clientRing.Value = clients[idx]
+		clientRing = clientRing.Next()
+	}
+
+	var err error
+
+	for {
+		select {
+		case <-ctx.Done():
+			return
+		case tx := <-chTx:
+			clientRing = clientRing.Next()
+			client := clientRing.Value.(*rpchttp.HTTP)
+
+			if _, err := client.Health(ctx); err != nil {
+				continue
+			}
+
+			if _, err = client.BroadcastTxSync(ctx, tx); err != nil {
+				continue
+			}
+
+			select {
+			case chSuccess <- tx:
+				continue
+			case <-ctx.Done():
+				return
+			}
+
+		}
 	}
 }
--- a/test/e2e/runner/start.go
+++ b/test/e2e/runner/start.go
@@ -9,6 +9,9 @@ import (
 )

 func Start(testnet *e2e.Testnet) error {
+	if len(testnet.Nodes) == 0 {
+		return fmt.Errorf("no nodes in testnet")
+	}

 	// Nodes are already sorted by name. Sort them by name then startAt,
 	// which gives the overall order startAt, mode, name.
@@ -29,9 +32,7 @@ func Start(testnet *e2e.Testnet) error {
 	sort.SliceStable(nodeQueue, func(i, j int) bool {
 		return nodeQueue[i].StartAt < nodeQueue[j].StartAt
 	})
-	if len(nodeQueue) == 0 {
-		return fmt.Errorf("no nodes in testnet")
-	}
+
 	if nodeQueue[0].StartAt > 0 {
 		return fmt.Errorf("no initial nodes in testnet")
 	}
@@ -93,10 +94,8 @@ func Start(testnet *e2e.Testnet) error {
 			}
 		}

-		logger.Info(fmt.Sprintf("Starting node %v at height %v...", node.Name, node.StartAt))
-		if _, _, err := waitForHeight(testnet, node.StartAt); err != nil {
-			return err
-		}
+		logger.Info("Starting catch up node", "node", node.Name, "height", node.StartAt)
+
 		if err := execCompose(testnet.Dir, "up", "-d", node.Name); err != nil {
 			return err
 		}
Author	SHA1	Message	Date
tycho garen	b87431cef7	e2e: more consistent node selection during tests	2021-08-24 13:24:08 -04:00
Sam Kleinman	39dee8abc5	pubsub: improve handling of closed blocking subsciptions. (#6852 )	2021-08-23 16:41:45 -04:00
Hlib Kanunnikov	d0e33b4292	blocksync: complete transition from Blockchain to BlockSync (#6847 )	2021-08-23 16:45:08 +02:00
William Banfield	8700ca9d1a	ADR 071: Proposer-based Timestamps (#6799 ) Architectural decision record for Proposer-based timestamps.	2021-08-20 16:07:20 -04:00
Sam Kleinman	a374f74f7c	e2e: cleanup node start function (#6842 ) I realized after my last commit that my change made a following line of code a bit redundant. (alternatively my last change was redunadnt to the existing code.) I took this oppertunity to make some minor cleanups and logging changes to the node changes which I hope will make tests a bit more clear.	2021-08-20 17:26:04 +00:00
dependabot[bot]	3a234e1144	build(deps): Bump docker/build-push-action from 2.6.1 to 2.7.0 (#6845 ) Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 2.6.1 to 2.7.0. - [Release notes](https://github.com/docker/build-push-action/releases) - [Commits](https://github.com/docker/build-push-action/compare/v2.6.1...v2.7.0) --- updated-dependencies: - dependency-name: docker/build-push-action dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2021-08-20 13:32:11 +02:00
Aleksandr Bezobchuk	cce0a3c171	docs: add package godoc for indexer (#6839 ) * docs: add indexer godoc * docs++ * docs++ * docs++ * docs++ * docs++ * Update state/indexer/doc.go Co-authored-by: M. J. Fromberger <fromberger@interchain.io> * Update state/indexer/doc.go Co-authored-by: M. J. Fromberger <fromberger@interchain.io> * Update state/indexer/doc.go Co-authored-by: M. J. Fromberger <fromberger@interchain.io> * Update state/indexer/doc.go Co-authored-by: M. J. Fromberger <fromberger@interchain.io> * Update state/indexer/doc.go Co-authored-by: M. J. Fromberger <fromberger@interchain.io> * Update state/indexer/doc.go Co-authored-by: M. J. Fromberger <fromberger@interchain.io> * docs++ Co-authored-by: M. J. Fromberger <fromberger@interchain.io>	2021-08-19 20:25:17 +00:00
Sam Kleinman	a4cc8317da	e2e: avoid starting nodes from the future (#6835 )	2021-08-18 14:33:28 -04:00
Tess Rinearson	69f6eee2e4	changelog: linkify the 0.34.11 release notes (#6836 ) Co-authored-by: Aleksandr Bezobchuk <alexanderbez@users.noreply.github.com>	2021-08-18 12:06:13 +00:00
dependabot[bot]	afb6af8bc3	build(deps): Bump github.com/golangci/golangci-lint (#6837 ) Bumps [github.com/golangci/golangci-lint](https://github.com/golangci/golangci-lint) from 1.41.1 to 1.42.0. - [Release notes](https://github.com/golangci/golangci-lint/releases) - [Changelog](https://github.com/golangci/golangci-lint/blob/master/CHANGELOG.md) - [Commits](https://github.com/golangci/golangci-lint/compare/v1.41.1...v1.42.0) --- updated-dependencies: - dependency-name: github.com/golangci/golangci-lint dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2021-08-18 08:02:16 -04:00
Tess Rinearson	0ed3ba6279	changelog: update to reflect 0.34.12 release (#6833 )	2021-08-18 11:55:57 +02:00