Review from Anton

blockchain/reactor.go

@@ -26,6 +26,13 @@ const (
 	statusUpdateIntervalSeconds = 10
 	// check if we should switch to consensus reactor
 	switchToConsensusIntervalSeconds = 1
+
+	// NOTE: keep up to date with bcBlockResponseMessage
+	bcBlockResponseMessagePrefixSize   = 4
+	bcBlockResponseMessageFieldKeySize = 1
+	maxMessageSize                     = types.MaxBlockSizeBytes +
+		bcBlockResponseMessagePrefixSize +
+		bcBlockResponseMessageFieldKeySize
 )
 
 type consensusReactor interface {
@@ -122,9 +129,11 @@ func (bcR *BlockchainReactor) OnStop() {
 func (bcR *BlockchainReactor) GetChannels() []*p2p.ChannelDescriptor {
 	return []*p2p.ChannelDescriptor{
 		{
-			ID:                BlockchainChannel,
-			Priority:          10,
-			SendQueueCapacity: 1000,
+			ID:                  BlockchainChannel,
+			Priority:            10,
+			SendQueueCapacity:   1000,
+			RecvBufferCapacity:  50 * 4096,
+			RecvMessageCapacity: maxMessageSize,
 		},
 	}
 }
@@ -336,11 +345,6 @@ func RegisterBlockchainMessages(cdc *amino.Codec) {
 // DecodeMessage decodes BlockchainMessage.
 // TODO: ensure that bz is completely read.
 func DecodeMessage(bz []byte) (msg BlockchainMessage, err error) {
-	const (
-		prefixSize     = 4
-		fieldKeySize   = 1
-		maxMessageSize = types.MaxBlockSizeBytes + prefixSize + fieldKeySize
-	)
 	err = cdc.UnmarshalBinaryBare(bz, &msg)
 	if err != nil {
 		err = cmn.ErrorWrap(err, "DecodeMessage() had bytes left over")

blockchain/store.go

@@ -53,15 +53,10 @@ func (bs *BlockStore) Height() int64 {
 // LoadBlock returns the block with the given height.
 // If no block is found for that height, it returns nil.
 func (bs *BlockStore) LoadBlock(height int64) *types.Block {
-	var blockMeta = new(types.BlockMeta)
-	bz := bs.db.Get(calcBlockMetaKey(height))
-	if len(bz) == 0 {
+	var blockMeta = bs.LoadBlockMeta(height)
+	if blockMeta == nil {
 		return nil
 	}
-	err := cdc.UnmarshalBinaryBare(bz, blockMeta)
-	if err != nil {
-		panic(cmn.ErrorWrap(err, "Error reading block meta"))
-	}
 
 	var block = new(types.Block)
 	buf := []byte{}
@@ -69,7 +64,7 @@ func (bs *BlockStore) LoadBlock(height int64) *types.Block {
 		part := bs.LoadBlockPart(height, i)
 		buf = append(buf, part.Bytes...)
 	}
-	err = cdc.UnmarshalBinary(buf, block)
+	err := cdc.UnmarshalBinary(buf, block)
 	if err != nil {
 		// NOTE: The existence of meta should imply the existence of the
 		// block. So, make sure meta is only saved after blocks are saved.
@@ -137,7 +132,7 @@ func (bs *BlockStore) LoadSeenCommit(height int64) *types.Commit {
 	}
 	err := cdc.UnmarshalBinaryBare(bz, commit)
 	if err != nil {
-		panic(cmn.ErrorWrap(err, "Error reading block commit"))
+		panic(cmn.ErrorWrap(err, "Error reading block seen commit"))
 	}
 	return commit
 }

blockchain/store_test.go

@@ -179,7 +179,7 @@ func TestBlockStoreSaveLoadBlock(t *testing.T) {
 			seenCommit: seenCommit1,
 
 			corruptSeenCommitInDB: true,
-			wantPanic:             "Error reading block commit",
+			wantPanic:             "Error reading block seen commit",
 		},
 
 		{

consensus/common_test.go

@@ -21,7 +21,7 @@ import (
 	"github.com/tendermint/tendermint/p2p"
 	sm "github.com/tendermint/tendermint/state"
 	"github.com/tendermint/tendermint/types"
-	privval "github.com/tendermint/tendermint/types/priv_validator"
+	pvm "github.com/tendermint/tendermint/types/priv_validator"
 	cmn "github.com/tendermint/tmlibs/common"
 	dbm "github.com/tendermint/tmlibs/db"
 	"github.com/tendermint/tmlibs/log"
@@ -278,10 +278,10 @@ func newConsensusStateWithConfigAndBlockStore(thisConfig *cfg.Config, state sm.S
 	return cs
 }
 
-func loadPrivValidator(config *cfg.Config) *privval.FilePV {
+func loadPrivValidator(config *cfg.Config) *pvm.FilePV {
 	privValidatorFile := config.PrivValidatorFile()
 	ensureDir(path.Dir(privValidatorFile), 0700)
-	privValidator := privval.LoadOrGenFilePV(privValidatorFile)
+	privValidator := pvm.LoadOrGenFilePV(privValidatorFile)
 	privValidator.Reset()
 	return privValidator
 }
@@ -379,7 +379,7 @@ func randConsensusNetWithPeers(nValidators, nPeers int, testName string, tickerF
 			privVal = privVals[i]
 		} else {
 			_, tempFilePath := cmn.Tempfile("priv_validator_")
-			privVal = privval.GenFilePV(tempFilePath)
+			privVal = pvm.GenFilePV(tempFilePath)
 		}
 
 		app := appFunc()

consensus/reactor.go

@@ -107,27 +107,31 @@ func (conR *ConsensusReactor) GetChannels() []*p2p.ChannelDescriptor {
 	// TODO optimize
 	return []*p2p.ChannelDescriptor{
 		{
-			ID:                StateChannel,
-			Priority:          5,
-			SendQueueCapacity: 100,
+			ID:                  StateChannel,
+			Priority:            5,
+			SendQueueCapacity:   100,
+			RecvMessageCapacity: maxConsensusMessageSize,
 		},
 		{
-			ID:                 DataChannel, // maybe split between gossiping current block and catchup stuff
-			Priority:           10,          // once we gossip the whole block there's nothing left to send until next height or round
-			SendQueueCapacity:  100,
-			RecvBufferCapacity: 50 * 4096,
+			ID:                  DataChannel, // maybe split between gossiping current block and catchup stuff
+			Priority:            10,          // once we gossip the whole block there's nothing left to send until next height or round
+			SendQueueCapacity:   100,
+			RecvBufferCapacity:  50 * 4096,
+			RecvMessageCapacity: maxConsensusMessageSize,
 		},
 		{
-			ID:                 VoteChannel,
-			Priority:           5,
-			SendQueueCapacity:  100,
-			RecvBufferCapacity: 100 * 100,
+			ID:                  VoteChannel,
+			Priority:            5,
+			SendQueueCapacity:   100,
+			RecvBufferCapacity:  100 * 100,
+			RecvMessageCapacity: maxConsensusMessageSize,
 		},
 		{
-			ID:                 VoteSetBitsChannel,
-			Priority:           1,
-			SendQueueCapacity:  2,
-			RecvBufferCapacity: 1024,
+			ID:                  VoteSetBitsChannel,
+			Priority:            1,
+			SendQueueCapacity:   2,
+			RecvBufferCapacity:  1024,
+			RecvMessageCapacity: maxConsensusMessageSize,
 		},
 	}
 }
@@ -1278,7 +1282,6 @@ func RegisterConsensusMessages(cdc *amino.Codec) {
 }
 
 // DecodeMessage decodes the given bytes into a ConsensusMessage.
-// TODO: check for unnecessary extra bytes at the end.
 func DecodeMessage(bz []byte) (msg ConsensusMessage, err error) {
 	err = cdc.UnmarshalBinaryBare(bz, &msg)
 	return

consensus/replay_test.go

@@ -26,7 +26,7 @@ import (
 	"github.com/tendermint/tendermint/proxy"
 	sm "github.com/tendermint/tendermint/state"
 	"github.com/tendermint/tendermint/types"
-	privval "github.com/tendermint/tendermint/types/priv_validator"
+	pvm "github.com/tendermint/tendermint/types/priv_validator"
 	"github.com/tendermint/tmlibs/log"
 )
 
@@ -325,7 +325,7 @@ func testHandshakeReplay(t *testing.T, nBlocks int, mode uint) {
 	walFile := tempWALWithData(walBody)
 	config.Consensus.SetWalFile(walFile)
 
-	privVal := privval.LoadFilePV(config.PrivValidatorFile())
+	privVal := pvm.LoadFilePV(config.PrivValidatorFile())
 
 	wal, err := NewWAL(walFile, false)
 	if err != nil {

consensus/state.go

@@ -778,7 +778,7 @@ func (cs *ConsensusState) enterPropose(height int64, round int) {
 
 	// if not a validator, we're done
 	if !cs.Validators.HasAddress(cs.privValidator.GetAddress()) {
-		cs.Logger.Debug("This node is not a validator 2", cs.privValidator.GetAddress(), cs.Validators)
+		cs.Logger.Debug("This node is not a validator", "addr", cs.privValidator.GetAddress(), "vals", cs.Validators)
 		return
 	}
 	cs.Logger.Debug("This node is a validator")

consensus/wal.go

@@ -42,7 +42,7 @@ func RegisterWALMessages(cdc *amino.Codec) {
 	cdc.RegisterConcrete(types.EventDataRoundState{}, "tendermint/wal/EventDataRoundState", nil)
 	cdc.RegisterConcrete(msgInfo{}, "tendermint/wal/MsgInfo", nil)
 	cdc.RegisterConcrete(timeoutInfo{}, "tendermint/wal/TimeoutInfo", nil)
-	cdc.RegisterConcrete(EndHeightMessage{}, "tendermint/wal/EndHeightMessagE", nil)
+	cdc.RegisterConcrete(EndHeightMessage{}, "tendermint/wal/EndHeightMessage", nil)
 }
 
 //--------------------------------------------------------

consensus/wal_generator.go

@@ -17,7 +17,7 @@ import (
 	"github.com/tendermint/tendermint/proxy"
 	sm "github.com/tendermint/tendermint/state"
 	"github.com/tendermint/tendermint/types"
-	privval "github.com/tendermint/tendermint/types/priv_validator"
+	pvm "github.com/tendermint/tendermint/types/priv_validator"
 	auto "github.com/tendermint/tmlibs/autofile"
 	cmn "github.com/tendermint/tmlibs/common"
 	"github.com/tendermint/tmlibs/db"
@@ -41,7 +41,7 @@ func WALWithNBlocks(numBlocks int) (data []byte, err error) {
 	// COPY PASTE FROM node.go WITH A FEW MODIFICATIONS
 	// NOTE: we can't import node package because of circular dependency
 	privValidatorFile := config.PrivValidatorFile()
-	privValidator := privval.LoadOrGenFilePV(privValidatorFile)
+	privValidator := pvm.LoadOrGenFilePV(privValidatorFile)
 	genDoc, err := types.GenesisDocFromFile(config.GenesisFile())
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to read genesis file")
@@ -72,7 +72,6 @@ func WALWithNBlocks(numBlocks int) (data []byte, err error) {
 	consensusState := NewConsensusState(config.Consensus, state.Copy(), blockExec, blockStore, mempool, evpool)
 	consensusState.SetLogger(logger)
 	consensusState.SetEventBus(eventBus)
-	fmt.Println(">>privval", privValidator)
 	if privValidator != nil {
 		consensusState.SetPrivValidator(privValidator)
 	}

evidence/reactor.go

@@ -141,7 +141,7 @@ type EvidenceMessage interface{}
 func RegisterEvidenceMessages(cdc *amino.Codec) {
 	cdc.RegisterInterface((*EvidenceMessage)(nil), nil)
 	cdc.RegisterConcrete(&EvidenceListMessage{},
-		"tendermint/evidence/EvidenceListMessagE", nil)
+		"tendermint/evidence/EvidenceListMessage", nil)
 }
 
 // DecodeMessage decodes a byte-array into a EvidenceMessage.

node/node.go

@@ -35,7 +35,7 @@ import (
 	"github.com/tendermint/tendermint/state/txindex/kv"
 	"github.com/tendermint/tendermint/state/txindex/null"
 	"github.com/tendermint/tendermint/types"
-	privval "github.com/tendermint/tendermint/types/priv_validator"
+	pvm "github.com/tendermint/tendermint/types/priv_validator"
 	"github.com/tendermint/tendermint/version"
 
 	_ "net/http/pprof"
@@ -80,7 +80,7 @@ type NodeProvider func(*cfg.Config, log.Logger) (*Node, error)
 // It implements NodeProvider.
 func DefaultNewNode(config *cfg.Config, logger log.Logger) (*Node, error) {
 	return NewNode(config,
-		privval.LoadOrGenFilePV(config.PrivValidatorFile()),
+		pvm.LoadOrGenFilePV(config.PrivValidatorFile()),
 		proxy.DefaultClientCreator(config.ProxyApp, config.ABCI, config.DBDir()),
 		DefaultGenesisDocProviderFunc(config),
 		DefaultDBProvider,
@@ -181,8 +181,8 @@ func NewNode(config *cfg.Config,
 			// TODO: persist this key so external signer
 			// can actually authenticate us
 			privKey = crypto.GenPrivKeyEd25519()
-			pvsc    = privval.NewSocketPV(
-				logger.With("module", "privval"),
+			pvsc    = pvm.NewSocketPV(
+				logger.With("module", "pvm"),
 				config.PrivValidatorListenAddr,
 				privKey,
 			)
@@ -446,7 +446,7 @@ func (n *Node) OnStop() {
 	n.eventBus.Stop()
 	n.indexerService.Stop()
 
-	if pvsc, ok := n.privValidator.(*privval.SocketPV); ok {
+	if pvsc, ok := n.privValidator.(*pvm.SocketPV); ok {
 		if err := pvsc.Stop(); err != nil {
 			n.Logger.Error("Error stopping priv validator socket client", "err", err)
 		}

p2p/conn/connection.go

@@ -18,8 +18,8 @@ import (
 )
 
 const (
-	maxPacketMsgPayloadSizeDefault = 1024
-	maxPacketMsgOverheadSize       = 14
+	maxPacketMsgPayloadSizeDefault = 1024 // NOTE: Must be below 16,384 bytes for 14 below.
+	maxPacketMsgOverheadSize       = 14   // NOTE: See connection_test for derivation.
 
 	numBatchPacketMsgs = 10
 	minReadBufferSize  = 1024

p2p/conn/connection_test.go

@@ -136,7 +136,8 @@ func TestMConnectionPongTimeoutResultsInError(t *testing.T) {
 	go func() {
 		// read ping
 		var pkt PacketPing
-		_, err = cdc.UnmarshalBinaryReader(server, &pkt, 1024)
+		const maxPacketPingSize = 1024
+		_, err = cdc.UnmarshalBinaryReader(server, &pkt, maxPacketPingSize)
 		assert.Nil(t, err)
 		serverGotPing <- struct{}{}
 	}()

p2p/conn/secret_connection_test.go

@@ -240,9 +240,10 @@ func BenchmarkSecretConnection(b *testing.B) {
 }
 
 func fingerprint(bz []byte) []byte {
-	if len(bz) < 40 {
+	const fbsize = 40
+	if len(bz) < fbsize {
 		return bz
 	} else {
-		return bz[:40]
+		return bz[:fbsize]
 	}
 }

rpc/lib/server/handlers.go

@@ -208,7 +208,7 @@ func jsonParamsToArgs(rpcFunc *RPCFunc, cdc *amino.Codec, raw []byte, argsOffset
 		return mapParamsToArgs(rpcFunc, cdc, m, argsOffset)
 	}
 
-	// Ttherwise, try an array.
+	// Otherwise, try an array.
 	var a []json.RawMessage
 	err = json.Unmarshal(raw, &a)
 	if err == nil {

rpc/test/helpers.go

@@ -19,7 +19,7 @@ import (
 	ctypes "github.com/tendermint/tendermint/rpc/core/types"
 	core_grpc "github.com/tendermint/tendermint/rpc/grpc"
 	rpcclient "github.com/tendermint/tendermint/rpc/lib/client"
-	privval "github.com/tendermint/tendermint/types/priv_validator"
+	pvm "github.com/tendermint/tendermint/types/priv_validator"
 )
 
 var globalConfig *cfg.Config
@@ -117,10 +117,10 @@ func NewTendermint(app abci.Application) *nm.Node {
 	config := GetConfig()
 	logger := log.NewTMLogger(log.NewSyncWriter(os.Stdout))
 	logger = log.NewFilter(logger, log.AllowError())
-	privValidatorFile := config.PrivValidatorFile()
-	privValidator := privval.LoadOrGenFilePV(privValidatorFile)
+	pvFile := config.PrivValidatorFile()
+	pv := pvm.LoadOrGenFilePV(pvFile)
 	papp := proxy.NewLocalClientCreator(app)
-	node, err := nm.NewNode(config, privValidator, papp,
+	node, err := nm.NewNode(config, pv, papp,
 		nm.DefaultGenesisDocProviderFunc(config),
 		nm.DefaultDBProvider, logger)
 	if err != nil {