do not sent committed at 67%

cmd/harmony/main.go

@@ -653,7 +653,7 @@ func setupConsensusAndNode(hc harmonyConfig, nodeConfig *nodeconfig.ConfigType)
 
 	// Assign closure functions to the consensus object
 	currentConsensus.SetBlockVerifier(currentNode.VerifyNewBlock)
-	currentConsensus.OnConsensusDone = currentNode.PostConsensusProcessing
+	currentConsensus.PostConsensusJob = currentNode.PostConsensusProcessing
 	// update consensus information based on the blockchain
 	currentConsensus.SetMode(currentConsensus.UpdateConsensusInformation())
 	currentConsensus.NextBlockDue = time.Now()

consensus/consensus.go

@@ -92,9 +92,9 @@ type Consensus struct {
 	ReadySignal chan ProposalType
 	// Channel to send full commit signatures to finish new block proposal
 	CommitSigChannel chan []byte
-	// The post-consensus processing func passed from Node object
+	// The post-consensus job func passed from Node object
 	// Called when consensus on a new block is done
-	OnConsensusDone func(*types.Block) error
+	PostConsensusJob func(*types.Block) error
 	// The verifier func passed from Node object
 	BlockVerifier BlockVerifierFunc
 	// verified block to state sync broadcast

consensus/consensus_msg_sender.go

@@ -56,7 +56,7 @@ func (sender *MessageSender) Reset(blockNum uint64) {
 }
 
 // SendWithRetry sends message with retry logic.
-func (sender *MessageSender) SendWithRetry(blockNum uint64, msgType msg_pb.MessageType, groups []nodeconfig.GroupID, p2pMsg []byte, immediate bool) error {
+func (sender *MessageSender) SendWithRetry(blockNum uint64, msgType msg_pb.MessageType, groups []nodeconfig.GroupID, p2pMsg []byte) error {
 	if sender.retryTimes != 0 {
 		msgRetry := MessageRetry{blockNum: blockNum, groups: groups, p2pMsg: p2pMsg, msgType: msgType, retryCount: 0}
 		atomic.StoreUint32(&msgRetry.isActive, 1)
@@ -65,11 +65,8 @@ func (sender *MessageSender) SendWithRetry(blockNum uint64, msgType msg_pb.Messa
 			sender.Retry(&msgRetry)
 		}()
 	}
-	if immediate {
 	return sender.host.SendMessageToGroups(groups, p2pMsg)
 }
-	return nil
-}
 
 // SendWithoutRetry sends message without retry logic.
 func (sender *MessageSender) SendWithoutRetry(groups []nodeconfig.GroupID, p2pMsg []byte) error {

consensus/consensus_v2.go

@@ -135,6 +135,9 @@ func (consensus *Consensus) finalCommit() {
 		return
 	}
 
+	consensus.getLogger().Info().Hex("new", commitSigAndBitmap).Msg("[finalCommit] Overriding commit signatures!!")
+	consensus.Blockchain.WriteCommitSig(block.NumberU64(), commitSigAndBitmap)
+
 	block.SetCurrentCommitSig(commitSigAndBitmap)
 	err = consensus.commitBlock(block, FBFTMsg)
 
@@ -146,22 +149,12 @@ func (consensus *Consensus) finalCommit() {
 	}
 
 	// if leader successfully finalizes the block, send committed message to validators
-	// TODO: once leader rotation is implemented, leader who is about to be switched out
-	//       needs to send the committed message immediately so the next leader can
-	//       have the full commit signatures for new block
-	// For now, the leader don't need to send immediately as the committed sig will be
-	// included in the next block and sent in next prepared message. Unless the node
-	// won't be the leader anymore or it's the last block of the epoch (no pipelining).
-	sendImmediately := false
-	if !consensus.IsLeader() || block.IsLastBlockInEpoch() {
-		sendImmediately = true
-	}
 	if err := consensus.msgSender.SendWithRetry(
 		block.NumberU64(),
 		msg_pb.MessageType_COMMITTED, []nodeconfig.GroupID{
 			nodeconfig.NewGroupIDByShardID(nodeconfig.ShardID(consensus.ShardID)),
 		},
-		p2p.ConstructMessage(msgToSend), sendImmediately); err != nil {
+		p2p.ConstructMessage(msgToSend)); err != nil {
 		consensus.getLogger().Warn().Err(err).Msg("[finalCommit] Cannot send committed message")
 	} else {
 		consensus.getLogger().Info().
@@ -170,10 +163,6 @@ func (consensus *Consensus) finalCommit() {
 			Msg("[finalCommit] Sent Committed Message")
 	}
 
-	if consensus.IsLeader() && block.IsLastBlockInEpoch() {
-		consensus.ReadySignal <- AsyncProposal
-	}
-
 	// Dump new block into level db
 	// In current code, we add signatures in block in tryCatchup, the block dump to explorer does not contains signatures
 	// but since explorer doesn't need signatures, it should be fine
@@ -203,7 +192,9 @@ func (consensus *Consensus) finalCommit() {
 	// Update time due for next block
 	consensus.NextBlockDue = time.Now().Add(consensus.BlockPeriod)
 
-	// Send commit sig/bitmap to finish the new block proposal
+	// If still the leader, send commit sig/bitmap to finish the new block proposal,
+	// else, the block proposal will timeout by itself.
+	if consensus.IsLeader() {
 		go func() {
 			select {
 			case consensus.CommitSigChannel <- commitSigAndBitmap:
@@ -212,6 +203,7 @@ func (consensus *Consensus) finalCommit() {
 			}
 		}()
 	}
+}
 
 // BlockCommitSigs returns the byte array of aggregated
 // commit signature and bitmap signed on the block
@@ -493,46 +485,19 @@ func (consensus *Consensus) preCommitAndPropose(blk *types.Block) error {
 		return errors.New("block to pre-commit is nil")
 	}
 
-	leaderPriKey, err := consensus.GetConsensusLeaderPrivateKey()
-	if err != nil {
-		return err
-	}
-
 	consensus.mutex.Lock()
-	network, err := consensus.construct(msg_pb.MessageType_COMMITTED, nil, []*bls.PrivateKeyWrapper{leaderPriKey})
+	bareMinimumCommit := consensus.constructQuorumSigAndBitmap(quorum.Commit)
 	consensus.mutex.Unlock()
 
-	if err != nil {
+	blk.SetCurrentCommitSig(bareMinimumCommit)
-		return errors.Wrap(err, "[preCommitAndPropose] Unable to construct Committed message")
-	}
-
-	msgToSend, FBFTMsg :=
-		network.Bytes,
-		network.FBFTMsg
-	consensus.FBFTLog.AddMessage(FBFTMsg)
 
-	blk.SetCurrentCommitSig(FBFTMsg.Payload)
+	if _, err := consensus.Blockchain.InsertChain([]*types.Block{blk}, true); err != nil {
-	if err := consensus.OnConsensusDone(blk); err != nil {
 		consensus.getLogger().Error().Err(err).Msg("[preCommitAndPropose] Failed to add block to chain")
 		return err
 	}
 
-	if err := consensus.msgSender.SendWithRetry(
-		blk.NumberU64(),
-		msg_pb.MessageType_COMMITTED, []nodeconfig.GroupID{
-			nodeconfig.NewGroupIDByShardID(nodeconfig.ShardID(consensus.ShardID)),
-		},
-		p2p.ConstructMessage(msgToSend), true); err != nil {
-		consensus.getLogger().Warn().Err(err).Msg("[preCommitAndPropose] Cannot send committed message")
-	} else {
-		consensus.getLogger().Info().
-			Str("blockHash", blk.Hash().Hex()).
-			Uint64("blockNum", consensus.blockNum).
-			Msg("[preCommitAndPropose] Sent Committed Message")
-	}
-
 	// Send signal to Node to propose the new block for consensus
-	consensus.getLogger().Warn().Err(err).Msg("[preCommitAndPropose] sending block proposal signal")
+	consensus.getLogger().Info().Msg("[preCommitAndPropose] sending block proposal signal")
 
 	consensus.ReadySignal <- AsyncProposal
 	return nil
@@ -584,7 +549,8 @@ func (consensus *Consensus) tryCatchup() error {
 
 func (consensus *Consensus) commitBlock(blk *types.Block, committedMsg *FBFTMessage) error {
 	if consensus.Blockchain.CurrentBlock().NumberU64() < blk.NumberU64() {
-		if err := consensus.OnConsensusDone(blk); err != nil {
+		if _, err := consensus.Blockchain.InsertChain([]*types.Block{blk}, true); err != nil {
+			consensus.getLogger().Error().Err(err).Msg("[commitBlock] Failed to add block to chain")
 			return err
 		}
 	}
@@ -594,10 +560,16 @@ func (consensus *Consensus) commitBlock(blk *types.Block, committedMsg *FBFTMess
 		return errIncorrectSender
 	}
 
+	consensus.PostConsensusJob(blk)
 	consensus.SetupForNewConsensus(blk, committedMsg)
+	consensus.FinishFinalityCount()
+	utils.Logger().Info().Uint64("blockNum", blk.NumberU64()).
+		Str("hash", blk.Header().Hash().Hex()).
+		Msg("Added New Block to Blockchain!!!")
 	return nil
 }
 
+// SetupForNewConsensus sets the state for new consensus
 func (consensus *Consensus) SetupForNewConsensus(blk *types.Block, committedMsg *FBFTMessage) {
 	atomic.AddUint64(&consensus.blockNum, 1)
 	consensus.SetCurBlockViewID(committedMsg.ViewID + 1)

consensus/engine/consensus_engine.go

@@ -15,7 +15,7 @@ import (
 	staking "github.com/harmony-one/harmony/staking/types"
 )
 
-// Blockchain defines a collection of methods needed to access the local
+// ChainReader defines a collection of methods needed to access the local
 // blockchain during header and/or uncle verification.
 // Note this reader interface is still in process of being integrated with the BFT consensus.
 type ChainReader interface {

consensus/leader.go

@@ -80,7 +80,7 @@ func (consensus *Consensus) announce(block *types.Block) {
 	if err := consensus.msgSender.SendWithRetry(
 		consensus.blockNum, msg_pb.MessageType_ANNOUNCE, []nodeconfig.GroupID{
 			nodeconfig.NewGroupIDByShardID(nodeconfig.ShardID(consensus.ShardID)),
-		}, p2p.ConstructMessage(msgToSend), true); err != nil {
+		}, p2p.ConstructMessage(msgToSend)); err != nil {
 		consensus.getLogger().Warn().
 			Str("groupID", string(nodeconfig.NewGroupIDByShardID(
 				nodeconfig.ShardID(consensus.ShardID),
@@ -300,13 +300,10 @@ func (consensus *Consensus) onCommit(msg *msg_pb.Message) {
 	if !quorumWasMet && quorumIsMet {
 		logger.Info().Msg("[OnCommit] 2/3 Enough commits received")
 
-		// If it's not the epoch block, do pipelining and send committed message to validators now at 67% committed.
-		if !blockObj.IsLastBlockInEpoch() {
 		go func() {
 			// TODO: make it synchronized with commitFinishChan
 			consensus.preCommitAndPropose(blockObj)
 		}()
-		}
 
 		consensus.getLogger().Info().Msg("[OnCommit] Starting Grace Period")
 		go func(viewID uint64) {

consensus/threshold.go

@@ -74,7 +74,6 @@ func (consensus *Consensus) didReachPrepareQuorum() error {
 			nodeconfig.NewGroupIDByShardID(nodeconfig.ShardID(consensus.ShardID)),
 		},
 		p2p.ConstructMessage(msgToSend),
-		true,
 	); err != nil {
 		consensus.getLogger().Warn().Msg("[OnPrepare] Cannot send prepared message")
 	} else {

consensus/validator.go

@@ -284,20 +284,6 @@ func (consensus *Consensus) onCommitted(msg *msg_pb.Message) {
 	consensus.aggregatedCommitSig = aggSig
 	consensus.commitBitmap = mask
 
-	// If we already have a committed signature received before, check whether the new one
-	// has more signatures and if yes, override the old data.
-	// Otherwise, simply write the commit signature in db.
-	commitSigBitmap, err := consensus.Blockchain.ReadCommitSig(blockObj.NumberU64())
-	if err == nil && len(commitSigBitmap) == len(recvMsg.Payload) {
-		new := mask.CountEnabled()
-		mask.SetMask(commitSigBitmap[bls.BLSSignatureSizeInBytes:])
-		cur := mask.CountEnabled()
-		if new > cur {
-			consensus.getLogger().Info().Hex("old", commitSigBitmap).Hex("new", recvMsg.Payload).Msg("[OnCommitted] Overriding commit signatures!!")
-			consensus.Blockchain.WriteCommitSig(blockObj.NumberU64(), recvMsg.Payload)
-		}
-	}
-
 	consensus.tryCatchup()
 	if recvMsg.BlockNum > consensus.blockNum {
 		consensus.getLogger().Info().Uint64("MsgBlockNum", recvMsg.BlockNum).Msg("[OnCommitted] OUT OF SYNC")

consensus/view_change.go

@@ -265,7 +265,6 @@ func (consensus *Consensus) startViewChange() {
 			[]nodeconfig.GroupID{
 				nodeconfig.NewGroupIDByShardID(nodeconfig.ShardID(consensus.ShardID))},
 			p2p.ConstructMessage(msgToSend),
-			true,
 		); err != nil {
 			consensus.getLogger().Err(err).
 				Msg("[startViewChange] could not send out the ViewChange message")
@@ -295,7 +294,6 @@ func (consensus *Consensus) startNewView(viewID uint64, newLeaderPriKey *bls.Pri
 		[]nodeconfig.GroupID{
 			nodeconfig.NewGroupIDByShardID(nodeconfig.ShardID(consensus.ShardID))},
 		p2p.ConstructMessage(msgToSend),
-		true,
 	); err != nil {
 		return errors.New("failed to send out the NewView message")
 	}

node/node_handler.go

@@ -353,16 +353,6 @@ func (node *Node) numSignaturesIncludedInBlock(block *types.Block) uint32 {
 // 2. [leader] send new block to the client
 // 3. [leader] send cross shard tx receipts to destination shard
 func (node *Node) PostConsensusProcessing(newBlock *types.Block) error {
-	if _, err := node.Blockchain().InsertChain([]*types.Block{newBlock}, true); err != nil {
-		return err
-	}
-	utils.Logger().Info().
-		Uint64("blockNum", newBlock.NumberU64()).
-		Str("hash", newBlock.Header().Hash().Hex()).
-		Msg("Added New Block to Blockchain!!!")
-
-	node.Consensus.FinishFinalityCount()
-
 	if node.Consensus.IsLeader() {
 		if node.NodeConfig.ShardID == shard.BeaconChainShardID {
 			node.BroadcastNewBlock(newBlock)

node/node_newblock.go

@@ -44,7 +44,7 @@ func (node *Node) WaitForConsensusReadyV2(readySignal chan consensus.ProposalTyp
 					Msg("Consensus new block proposal: STOPPED!")
 				return
 			case proposalType := <-readySignal:
-				for node.Consensus != nil && node.Consensus.IsLeader() {
+				if node.Consensus != nil && node.Consensus.IsLeader() {
 					time.Sleep(SleepPeriod)
 					utils.Logger().Info().
 						Uint64("blockNum", node.Blockchain().CurrentBlock().NumberU64()+1).
@@ -88,7 +88,6 @@ func (node *Node) WaitForConsensusReadyV2(readySignal chan consensus.ProposalTyp
 
 						// Send the new block to Consensus so it can be confirmed.
 						node.BlockChannel <- newBlock
-						break
 					} else {
 						utils.Logger().Err(err).Msg("!!!!!!!!!Failed Proposing New Block!!!!!!!!!")
 					}