Save blocks on catch-up too.

consensus/reactor.go

@@ -280,7 +280,7 @@ OUTER_LOOP:
 		}
 
 		// If the peer is on a previous height, help catch up.
-		if rs.Height > prs.Height {
+		if 0 < prs.Height && prs.Height < rs.Height {
 			log.Debug("Data catchup", "height", rs.Height, "peerHeight", prs.Height)
 			if index, ok := prs.ProposalBlockBitArray.Not().PickRandom(); ok {
 				// Ensure that the peer's PartSetHeaeder is correct

consensus/state.go

@@ -240,6 +240,7 @@ type ConsensusState struct {
 	state               *state.State // State until height-1.
 	stagedBlock         *Block       // Cache last staged block.
 	stagedState         *state.State // Cache result of staged block.
+	lastCommittedHeight uint         // Last called saveCommitVoteBlock() on.
 }
 
 func NewConsensusState(state *state.State, blockStore *BlockStore, mempoolReactor *mempool.MempoolReactor) *ConsensusState {
@@ -828,6 +829,8 @@ func (cs *ConsensusState) TryFinalizeCommit(height uint) bool {
 		err := cs.stageBlock(cs.ProposalBlock, cs.ProposalBlockParts)
 		if err == nil {
 			log.Debug(Fmt("Finalizing commit of block: %v", cs.ProposalBlock))
+			// We have the block, so save/stage/sign-commit-vote.
+			cs.saveCommitVoteBlock(cs.ProposalBlock, cs.ProposalBlockParts)
 			// Increment height.
 			cs.updateToState(cs.stagedState)
 			// cs.Step is now RoundStepNewHeight or RoundStepNewRound
@@ -1038,6 +1041,13 @@ func (cs *ConsensusState) signAddVote(type_ byte, hash []byte, header PartSetHea
 
 func (cs *ConsensusState) saveCommitVoteBlock(block *Block, blockParts *PartSet) {
 
+	// Only run once per height.
+	if cs.lastCommittedHeight >= block.Height {
+		return
+	} else {
+		cs.lastCommittedHeight = block.Height
+	}
+
 	// The proposal must be valid.
 	if err := cs.stageBlock(block, blockParts); err != nil {
 		// Prevent zombies.