feat: retrieves timeout propose and timeout commit dynamically per height according to the app version

blockchain/v0/reactor.go

@@ -410,8 +410,7 @@ FOR_LOOP:
 			// TODO: batch saves so we dont persist to disk every block
 			bcR.store.SaveBlock(first, firstParts, second.LastCommit)
 
-			// TODO: same thing for app - but we would need a way to
-			// get the hash without persisting the state
+			// TODO: same thing for app - but we would need a way to get the hash without persisting the state
 			state, _, err = bcR.blockExec.ApplyBlock(state, firstID, first, second.LastCommit)
 			if err != nil {
 				// TODO This is bad, are we zombie?

config/config.go

@@ -167,14 +167,14 @@ type BaseConfig struct { //nolint: maligned
 	chainID string
 
 	// The root directory for all data.
-	// This should be set in viper so it can unmarshal into this struct
+	// This should be set in viper so that it can unmarshal into this struct
 	RootDir string `mapstructure:"home"`
 
 	// TCP or UNIX socket address of the ABCI application,
 	// or the name of an ABCI application compiled in with the CometBFT binary
 	ProxyApp string `mapstructure:"proxy_app"`
 
-	// A custom human readable name for this node
+	// A custom human-readable name for this node
 	Moniker string `mapstructure:"moniker"`
 
 	// If this node is many blocks behind the tip of the chain, FastSync
@@ -212,7 +212,7 @@ type BaseConfig struct { //nolint: maligned
 	// Output format: 'plain' (colored text) or 'json'
 	LogFormat string `mapstructure:"log_format"`
 
-	// Path to the JSON file containing the initial validator set and other meta data
+	// Path to the JSON file containing the initial validator set and other metadata
 	Genesis string `mapstructure:"genesis_file"`
 
 	// Path to the JSON file containing the private key to use as a validator in the consensus protocol
@@ -279,7 +279,7 @@ func (cfg BaseConfig) PrivValidatorKeyFile() string {
 	return rootify(cfg.PrivValidatorKey, cfg.RootDir)
 }
 
-// PrivValidatorFile returns the full path to the priv_validator_state.json file
+// PrivValidatorStateFile returns the full path to the priv_validator_state.json file
 func (cfg BaseConfig) PrivValidatorStateFile() string {
 	return rootify(cfg.PrivValidatorState, cfg.RootDir)
 }
@@ -871,7 +871,7 @@ func DefaultStateSyncConfig() *StateSyncConfig {
 	}
 }
 
-// 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()
 }
@@ -1055,6 +1055,20 @@ func (cfg *ConsensusConfig) Propose(round int32) time.Duration {
 	) * time.Nanosecond
 }
 
+// ProposeWithCustomTimeout is identical to Propose. However,
+// it calculates the amount of time to wait for a proposal using the supplied
+// customTimeout.
+// If customTimeout is 0, the default TimeoutCommit is used.
+func (cfg *ConsensusConfig) ProposeWithCustomTimeout(round int32, customTimeout time.Duration) time.Duration {
+	// this is to capture any unforeseen cases where the customTimeout is 0
+	var timeoutPropose time.Duration
+	if customTimeout == 0 {
+		// falling back to default timeout
+		timeoutPropose = cfg.TimeoutPropose
+	}
+	return time.Duration(timeoutPropose.Nanoseconds()+cfg.TimeoutProposeDelta.Nanoseconds()*int64(round)) * time.Nanosecond
+}
+
 // Prevote returns the amount of time to wait for straggler votes after receiving any +2/3 prevotes
 func (cfg *ConsensusConfig) Prevote(round int32) time.Duration {
 	return time.Duration(
@@ -1070,11 +1084,23 @@ func (cfg *ConsensusConfig) Precommit(round int32) time.Duration {
 }
 
 // Commit returns the amount of time to wait for straggler votes after receiving +2/3 precommits
-// for a single block (ie. a commit).
+// for a single block (i.e., a commit).
 func (cfg *ConsensusConfig) Commit(t time.Time) time.Time {
 	return t.Add(cfg.TimeoutCommit)
 }
 
+// CommitWithCustomTimeout is identical to Commit. However, it calculates the time for commit using the supplied customTimeout.
+// If customTimeout is 0, the default TimeoutCommit is used.
+func (cfg *ConsensusConfig) CommitWithCustomTimeout(t time.Time, customTimeout time.Duration) time.Time {
+	// this is to capture any unforeseen cases where the customTimeout is 0
+	var timeoutCommit time.Duration
+	if customTimeout == 0 {
+		// falling back to default timeout
+		timeoutCommit = cfg.TimeoutCommit
+	}
+	return t.Add(timeoutCommit)
+}
+
 // WalFile returns the full path to the write-ahead log file
 func (cfg *ConsensusConfig) WalFile() string {
 	if cfg.walFile != "" {
@@ -1091,6 +1117,8 @@ func (cfg *ConsensusConfig) SetWalFile(walFile string) {
 // ValidateBasic performs basic validation (checking param bounds, etc.) and
 // returns an error if any check fails.
 func (cfg *ConsensusConfig) ValidateBasic() error {
+	// TODO we may want to remove this check if TimeoutPropose is removed from
+	// the config
 	if cfg.TimeoutPropose < 0 {
 		return errors.New("timeout_propose can't be negative")
 	}
@@ -1109,6 +1137,8 @@ func (cfg *ConsensusConfig) ValidateBasic() error {
 	if cfg.TimeoutPrecommitDelta < 0 {
 		return errors.New("timeout_precommit_delta can't be negative")
 	}
+	// TODO we may want to remove this check if TimeoutCommit is removed from
+	// the config
 	if cfg.TimeoutCommit < 0 {
 		return errors.New("timeout_commit can't be negative")
 	}

consensus/mempool_test.go

@@ -75,7 +75,7 @@ func TestMempoolProgressInHigherRound(t *testing.T) {
 	timeoutCh := subscribe(cs.eventBus, types.EventQueryTimeoutPropose)
 	cs.setProposal = func(proposal *types.Proposal) error {
 		if cs.Height == 2 && cs.Round == 0 {
-			// dont set the proposal in round 0 so we timeout and
+			// don't set the proposal in round 0 so we timeout and
 			// go to next round
 			cs.Logger.Info("Ignoring set proposal at height 2, round 0")
 			return nil
@@ -91,7 +91,11 @@ func TestMempoolProgressInHigherRound(t *testing.T) {
 	round = 0
 
 	ensureNewRound(newRoundCh, height, round) // first round at next height
-	deliverTxsRange(cs, 0, 1)                 // we deliver txs, but dont set a proposal so we get the next round
+	deliverTxsRange(cs, 0, 1)                 // we deliver txs, but don't set a proposal so we get the next round
+	// The use of cs.config.TimeoutPropose.Nanoseconds() as the timeout propose is acceptable in this test case, the following line.
+	// Even though timeouts are version-dependent, cs is created with an empty previous state in this scenario.
+	// As there's no timeout propose in the previous state, we default to the timeout propose in the config.
+	// This makes the test case valid.
 	ensureNewTimeout(timeoutCh, height, round, cs.config.TimeoutPropose.Nanoseconds())
 
 	round++                                   // moving to the next round

consensus/replay.go

@@ -156,8 +156,8 @@ LOOP:
 		}
 
 		// NOTE: since the priv key is set when the msgs are received
-		// it will attempt to eg double sign but we can just ignore it
-		// since the votes will be replayed and we'll get to the next step
+		// it will attempt to e.g., double sign, but we can just ignore it
+		// since the votes will be replayed, and we'll get to the next step
 		if err := cs.readReplayMessage(msg, nil); err != nil {
 			return err
 		}
@@ -362,6 +362,11 @@ func (h *Handshaker) ReplayBlocksWithContext(
 				state.ConsensusParams = types.UpdateConsensusParams(state.ConsensusParams, res.ConsensusParams)
 				state.Version.Consensus.App = state.ConsensusParams.Version.AppVersion
 			}
+
+			// update timeouts based on the InitChainSync response
+			state.TimeoutCommit = res.Timeouts.TimeoutCommit
+			state.TimeoutPropose = res.Timeouts.TimeoutPropose
+
 			// We update the last results hash with the empty hash, to conform with RFC-6962.
 			state.LastResultsHash = merkle.HashFromByteSlices(nil)
 			if err := h.stateStore.Save(state); err != nil {

consensus/replay_file.go

@@ -29,7 +29,7 @@ const (
 //--------------------------------------------------------
 // replay messages interactively or all at once
 
-// replay the wal file
+// RunReplayFile replays the wal file
 func RunReplayFile(config cfg.BaseConfig, csConfig *cfg.ConsensusConfig, console bool) {
 	consensusState := newConsensusStateForReplay(config, csConfig)
 
@@ -38,7 +38,7 @@ func RunReplayFile(config cfg.BaseConfig, csConfig *cfg.ConsensusConfig, console
 	}
 }
 
-// Replay msgs in file or start the console
+// ReplayFile replays msgs in file or start the console
 func (cs *State) ReplayFile(file string, console bool) error {
 
 	if cs.IsRunning() {

consensus/state.go

@@ -674,9 +674,28 @@ func (cs *State) updateToState(state sm.State) {
 		// to be gathered for the first block.
 		// And alternative solution that relies on clocks:
 		// cs.StartTime = state.LastBlockTime.Add(timeoutCommit)
-		cs.StartTime = cs.config.Commit(cmttime.Now())
+
+		if state.LastBlockHeight == 0 {
+			// state represents the genesis state, hence the StartTime should be set based on the state's TimeoutCommit
+			// we don't use cs.state.TimeoutCommit because that is zero
+			cs.StartTime = cs.config.CommitWithCustomTimeout(cmttime.Now(), state.TimeoutCommit)
+		} else {
+			// if state does not represent the genesis state,
+			// we use the cs.state.TimeoutCommit
+			cs.StartTime = cs.config.CommitWithCustomTimeout(cmttime.Now(), cs.state.TimeoutCommit)
+		}
+
 	} else {
-		cs.StartTime = cs.config.Commit(cs.CommitTime)
+		if state.LastBlockHeight == 0 {
+			// state represents the genesis state, hence the StartTime should be set based on the state's TimeoutCommit
+			// we don't use cs.state.TimeoutCommit because that is zero
+			cs.StartTime = cs.config.CommitWithCustomTimeout(cs.CommitTime, state.TimeoutCommit)
+		} else {
+			// if state does not represent the genesis state,
+			// we use the cs.state.TimeoutCommit
+			cs.StartTime = cs.config.CommitWithCustomTimeout(cs.CommitTime, cs.state.TimeoutCommit)
+		}
+
 	}
 
 	cs.Validators = validators
@@ -1113,7 +1132,7 @@ func (cs *State) enterPropose(height int64, round int32) {
 	}()
 
 	// If we don't get the proposal and all block parts quick enough, enterPrevote
-	cs.scheduleTimeout(cs.config.Propose(round), height, round, cstypes.RoundStepPropose)
+	cs.scheduleTimeout(cs.config.ProposeWithCustomTimeout(round, cs.state.TimeoutPropose), height, round, cstypes.RoundStepPropose)
 
 	// Nothing more to do if we're not a validator
 	if cs.privValidator == nil {
@@ -1682,7 +1701,7 @@ func (cs *State) finalizeCommit(height int64) {
 	// exists.
 	//
 	// Either way, the State should not be resumed until we
-	// successfully call ApplyBlock (ie. later here, or in Handshake after
+	// successfully call ApplyBlock (i.e., later here, or in Handshake after
 	// restart).
 	endMsg := EndHeightMessage{height}
 	if err := cs.wal.WriteSync(endMsg); err != nil { // NOTE: fsync
@@ -1698,7 +1717,7 @@ func (cs *State) finalizeCommit(height int64) {
 	stateCopy := cs.state.Copy()
 
 	// Execute and commit the block, update and save the state, and update the mempool.
-	// NOTE The block.AppHash wont reflect these txs until the next block.
+	// NOTE The block.AppHash won't reflect these txs until the next block.
 	var (
 		err          error
 		retainHeight int64
@@ -1741,7 +1760,7 @@ func (cs *State) finalizeCommit(height int64) {
 
 	fail.Fail() // XXX
 
-	// Private validator might have changed it's key pair => refetch pubkey.
+	// Private validator might have changed its key pair => refetch pubkey.
 	if err := cs.updatePrivValidatorPubKey(); err != nil {
 		logger.Error("failed to get private validator pubkey", "err", err)
 	}

consensus/state_test.go

@@ -144,6 +144,10 @@ func TestStateEnterProposeNoPrivValidator(t *testing.T) {
 	startTestRound(cs, height, round)
 
 	// if we're not a validator, EnterPropose should timeout
+	// The use of cs.config.TimeoutPropose.Nanoseconds() as the timeout propose is acceptable in this test case.
+	// Even though timeouts are version-dependent, cs is created with an empty previous state in this scenario.
+	// As there's no timeout propose in the previous state, we default to the timeout propose in the config.
+	// This makes the test case valid.
 	ensureNewTimeout(timeoutCh, height, round, cs.config.TimeoutPropose.Nanoseconds())
 
 	if cs.GetRoundState().Proposal != nil {
@@ -179,6 +183,10 @@ func TestStateEnterProposeYesPrivValidator(t *testing.T) {
 	}
 
 	// if we're a validator, enterPropose should not timeout
+	// The use of cs.config.TimeoutPropose.Nanoseconds() as the timeout propose is acceptable in this test case.
+	// Even though timeouts are version-dependent, cs is created with an empty previous state in this scenario.
+	// As there's no timeout propose in the previous state, we default to the timeout propose in the config.
+	// This makes the test case valid.
 	ensureNoNewTimeout(timeoutCh, cs.config.TimeoutPropose.Nanoseconds())
 }
 
@@ -310,7 +318,7 @@ func TestStateOversizedBlock(t *testing.T) {
 				lockedRound = -1
 				// if the block is oversized cs1 should log an error with the block part message as it exceeds
 				// the consensus params. The block is not added to cs.ProposalBlock so the node timeouts.
-				ensureNewTimeout(timeoutProposeCh, height, round, cs1.config.Propose(round).Nanoseconds())
+				ensureNewTimeout(timeoutProposeCh, height, round, cs1.config.ProposeWithCustomTimeout(round, cs1.state.TimeoutPropose).Nanoseconds())
 				// and then should send nil prevote and precommit regardless of whether other validators prevote and
 				// precommit on it
 			}
@@ -497,7 +505,7 @@ func TestStateLockNoPOL(t *testing.T) {
 	incrementRound(vs2)
 
 	// now we're on a new round and not the proposer, so wait for timeout
-	ensureNewTimeout(timeoutProposeCh, height, round, cs1.config.Propose(round).Nanoseconds())
+	ensureNewTimeout(timeoutProposeCh, height, round, cs1.config.ProposeWithCustomTimeout(round, cs1.state.TimeoutPropose).Nanoseconds())
 
 	rs := cs1.GetRoundState()
 
@@ -1029,7 +1037,7 @@ func TestStateLockPOLSafety1(t *testing.T) {
 	*/
 
 	// timeout of propose
-	ensureNewTimeout(timeoutProposeCh, height, round, cs1.config.Propose(round).Nanoseconds())
+	ensureNewTimeout(timeoutProposeCh, height, round, cs1.config.ProposeWithCustomTimeout(round, cs1.state.TimeoutPropose).Nanoseconds())
 
 	// finish prevote
 	ensurePrevote(voteCh, height, round)
@@ -1199,7 +1207,7 @@ func TestProposeValidBlock(t *testing.T) {
 	t.Log("### ONTO ROUND 2")
 
 	// timeout of propose
-	ensureNewTimeout(timeoutProposeCh, height, round, cs1.config.Propose(round).Nanoseconds())
+	ensureNewTimeout(timeoutProposeCh, height, round, cs1.config.ProposeWithCustomTimeout(round, cs1.state.TimeoutPropose).Nanoseconds())
 
 	ensurePrevote(voteCh, height, round)
 	validatePrevote(t, cs1, round, vss[0], propBlockHash)
@@ -1326,7 +1334,7 @@ func TestSetValidBlockOnDelayedProposal(t *testing.T) {
 	startTestRound(cs1, cs1.Height, round)
 	ensureNewRound(newRoundCh, height, round)
 
-	ensureNewTimeout(timeoutProposeCh, height, round, cs1.config.Propose(round).Nanoseconds())
+	ensureNewTimeout(timeoutProposeCh, height, round, cs1.config.ProposeWithCustomTimeout(round, cs1.state.TimeoutPropose).Nanoseconds())
 
 	ensurePrevote(voteCh, height, round)
 	validatePrevote(t, cs1, round, vss[0], nil)
@@ -1407,7 +1415,7 @@ func TestWaitingTimeoutProposeOnNewRound(t *testing.T) {
 	rs := cs1.GetRoundState()
 	assert.True(t, rs.Step == cstypes.RoundStepPropose) // P0 does not prevote before timeoutPropose expires
 
-	ensureNewTimeout(timeoutWaitCh, height, round, cs1.config.Propose(round).Nanoseconds())
+	ensureNewTimeout(timeoutWaitCh, height, round, cs1.config.ProposeWithCustomTimeout(round, cs1.state.TimeoutPropose).Nanoseconds())
 
 	ensurePrevote(voteCh, height, round)
 	validatePrevote(t, cs1, round, vss[0], nil)
@@ -1471,7 +1479,7 @@ func TestWaitTimeoutProposeOnNilPolkaForTheCurrentRound(t *testing.T) {
 	incrementRound(vss[1:]...)
 	signAddVotes(cs1, cmtproto.PrevoteType, nil, types.PartSetHeader{}, vs2, vs3, vs4)
 
-	ensureNewTimeout(timeoutProposeCh, height, round, cs1.config.Propose(round).Nanoseconds())
+	ensureNewTimeout(timeoutProposeCh, height, round, cs1.config.ProposeWithCustomTimeout(round, cs1.state.TimeoutPropose).Nanoseconds())
 
 	ensurePrevote(voteCh, height, round)
 	validatePrevote(t, cs1, round, vss[0], nil)
@@ -1619,7 +1627,7 @@ func TestStartNextHeightCorrectlyAfterTimeout(t *testing.T) {
 
 	cs1.txNotifier.(*fakeTxNotifier).Notify()
 
-	ensureNewTimeout(timeoutProposeCh, height+1, round, cs1.config.Propose(round).Nanoseconds())
+	ensureNewTimeout(timeoutProposeCh, height+1, round, cs1.config.ProposeWithCustomTimeout(round, cs1.state.TimeoutPropose).Nanoseconds())
 	rs = cs1.GetRoundState()
 	assert.False(
 		t,

light/rpc/client.go

@@ -256,6 +256,10 @@ func (c *Client) ConsensusParams(ctx context.Context, height *int64) (*ctypes.Re
 	return res, nil
 }
 
+func (c *Client) ConsensusTimeoutsInfo(ctx context.Context, height int64) (*abci.TimeoutsInfo, error) {
+	return c.next.ConsensusTimeoutsInfo(ctx, height)
+}
+
 func (c *Client) Health(ctx context.Context) (*ctypes.ResultHealth, error) {
 	return c.next.Health(ctx)
 }