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Merge pull request #296 from tendermint/replay_fixes 

Replay fixes
This commit is contained in:
Ethan Buchman 2016-10-11 16:36:21 -04:00 committed by GitHub
parent 7a424e6b12 71baad59df
commit 7e07919d9d
9 changed files with 210 additions and 106 deletions
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2
blockchain/reactor.go
View File

@ -129,7 +129,7 @@ func (bcR *BlockchainReactor) Receive(chID byte, src *p2p.Peer, msgBytes []byte)
return
}
log.Notice("Receive", "src", src, "chID", chID, "msg", msg)
log.Info("Receive", "src", src, "chID", chID, "msg", msg)
switch msg := msg.(type) {
case *bcBlockRequestMessage:

11
consensus/common_test.go
View File

@ -18,6 +18,7 @@ import (
tmsp "github.com/tendermint/tmsp/types"
"github.com/tendermint/tmsp/example/counter"
"github.com/tendermint/tmsp/example/dummy"
)
var config cfg.Config // NOTE: must be reset for each _test.go file
@ -320,6 +321,16 @@ func fixedConsensusState() *ConsensusState {
return cs
}
func fixedConsensusStateDummy() *ConsensusState {
stateDB := dbm.NewMemDB()
state := sm.MakeGenesisStateFromFile(stateDB, config.GetString("genesis_file"))
privValidatorFile := config.GetString("priv_validator_file")
privValidator := types.LoadOrGenPrivValidator(privValidatorFile)
privValidator.Reset()
cs := newConsensusState(state, privValidator, dummy.NewDummyApplication())
return cs
}
func newConsensusState(state *sm.State, pv *types.PrivValidator, app tmsp.Application) *ConsensusState {
// Get BlockStore
blockDB := dbm.NewMemDB()

28
consensus/replay.go
View File

@ -77,7 +77,7 @@ func (cs *ConsensusState) readReplayMessage(msgBytes []byte, newStepCh chan inte
// replay only those messages since the last block.
// timeoutRoutine should run concurrently to read off tickChan
func (cs *ConsensusState) catchupReplay(height int) error {
func (cs *ConsensusState) catchupReplay(csHeight int) error {
if !cs.wal.Exists() {
return nil
}
@ -88,6 +88,7 @@ func (cs *ConsensusState) catchupReplay(height int) error {
// starting from end of file,
// read messages until a new height is found
var walHeight int
nLines, err := cs.wal.SeekFromEnd(func(lineBytes []byte) bool {
var err error
var msg ConsensusLogMessage
@ -96,8 +97,8 @@ func (cs *ConsensusState) catchupReplay(height int) error {
panic(Fmt("Failed to read cs_msg_log json: %v", err))
}
m, ok := msg.Msg.(types.EventDataRoundState)
walHeight = m.Height
if ok && m.Step == RoundStepNewHeight.String() {
// TODO: ensure the height matches
return true
}
return false
@ -107,29 +108,46 @@ func (cs *ConsensusState) catchupReplay(height int) error {
return err
}
// ensure the height matches
if walHeight != csHeight {
var err error
if walHeight > csHeight {
err = errors.New(Fmt("WAL height (%d) exceeds cs height (%d). Is your cs.state corrupted?", walHeight, csHeight))
} else {
log.Notice("Replay: nothing to do", "cs.height", csHeight, "wal.height", walHeight)
}
return err
}
var beginning bool // if we had to go back to the beginning
if c, _ := cs.wal.fp.Seek(0, 1); c == 0 {
beginning = true
}
log.Notice("Catchup by replaying consensus messages", "n", nLines)
log.Notice("Catchup by replaying consensus messages", "n", nLines, "height", walHeight)
// now we can replay the latest nLines on consensus state
// note we can't use scan because we've already been reading from the file
reader := bufio.NewReader(cs.wal.fp)
// XXX: if a msg is too big we need to find out why or increase this for that case ...
maxMsgSize := 1000000
reader := bufio.NewReaderSize(cs.wal.fp, maxMsgSize)
for i := 0; i < nLines; i++ {
msgBytes, err := reader.ReadBytes('\n')
if err == io.EOF {
log.Warn("Replay: EOF", "bytes", string(msgBytes))
break
} else if err != nil {
return err
} else if len(msgBytes) == 0 {
log.Warn("Replay: msg bytes is 0")
continue
} else if len(msgBytes) == 1 && msgBytes[0] == '\n' {
log.Warn("Replay: new line")
continue
}
// the first msg is the NewHeight event (if we're not at the beginning), so we can ignore it
if !beginning && i == 1 {
log.Warn("Replay: not beginning and 1")
continue
}
@ -140,7 +158,7 @@ func (cs *ConsensusState) catchupReplay(height int) error {
return err
}
}
log.Notice("Done catchup replay")
log.Notice("Replay: Done")
return nil
}

211
consensus/replay_test.go
View File

@ -4,6 +4,7 @@ import (
"fmt"
"io/ioutil"
"os"
"path"
"strings"
"testing"
"time"
@ -13,62 +14,61 @@ import (
"github.com/tendermint/tendermint/types"
)
/*
The easiest way to generate this data is to copy ~/.tendermint_test/somedir/* to ~/.tendermint
and to run a local node.
Be sure to set the db to "leveldb" to create a cswal file in ~/.tendermint/data/cswal.
var data_dir = path.Join(GoPath, "src/github.com/tendermint/tendermint/consensus", "test_data")
If you need to change the signatures, you can use a script as follows:
The privBytes comes from config/tendermint_test/...
// the priv validator changes step at these lines for a block with 1 val and 1 part
var baseStepChanges = []int{2, 5, 7}
```
package main
// test recovery from each line in each testCase
var testCases = []*testCase{
newTestCase("empty_block", baseStepChanges), // empty block (has 1 block part)
newTestCase("small_block1", baseStepChanges), // small block with txs in 1 block part
newTestCase("small_block2", []int{2, 7, 9}), // small block with txs across 3 smaller block parts
}
import (
"encoding/hex"
"fmt"
type testCase struct {
name string
log string //full cswal
stepMap map[int]int8 // map lines of log to privval step
"github.com/tendermint/go-crypto"
)
proposeLine int
prevoteLine int
precommitLine int
}
func main() {
signBytes, err := hex.DecodeString("7B22636861696E5F6964223A2274656E6465726D696E745F74657374222C22766F7465223A7B22626C6F636B5F68617368223A2242453544373939433846353044354645383533364334333932464443384537423342313830373638222C22626C6F636B5F70617274735F686561646572223A506172745365747B543A31204236323237323535464632307D2C22686569676874223A312C22726F756E64223A302C2274797065223A327D7D")
if err != nil {
panic(err)
}
privBytes, err := hex.DecodeString("27F82582AEFAE7AB151CFB01C48BB6C1A0DA78F9BDDA979A9F70A84D074EB07D3B3069C422E19688B45CBFAE7BB009FC0FA1B1EA86593519318B7214853803C8")
if err != nil {
panic(err)
}
privKey := crypto.PrivKeyEd25519{}
copy(privKey[:], privBytes)
signature := privKey.Sign(signBytes)
signatureEd25519 := signature.(crypto.SignatureEd25519)
fmt.Printf("Signature Bytes: %X\n", signatureEd25519[:])
func newTestCase(name string, stepChanges []int) *testCase {
if len(stepChanges) != 3 {
panic(Fmt("a full wal has 3 step changes! Got array %v", stepChanges))
}
```
*/
return &testCase{
name: name,
log: readWAL(path.Join(data_dir, name+".cswal")),
stepMap: newMapFromChanges(stepChanges),
var testLog = `{"time":"2016-04-03T11:23:54.387Z","msg":[3,{"duration":972835254,"height":1,"round":0,"step":1}]}
{"time":"2016-04-03T11:23:54.388Z","msg":[1,{"height":1,"round":0,"step":"RoundStepPropose"}]}
{"time":"2016-04-03T11:23:54.388Z","msg":[2,{"msg":[17,{"Proposal":{"height":1,"round":0,"block_parts_header":{"total":1,"hash":"3BA1E90CB868DA6B4FD7F3589826EC461E9EB4EF"},"pol_round":-1,"signature":"3A2ECD5023B21EC144EC16CFF1B992A4321317B83EEDD8969FDFEA6EB7BF4389F38DDA3E7BB109D63A07491C16277A197B241CF1F05F5E485C59882ECACD9E07"}}],"peer_key":""}]}
{"time":"2016-04-03T11:23:54.389Z","msg":[2,{"msg":[19,{"Height":1,"Round":0,"Part":{"index":0,"bytes":"0101010F74656E6465726D696E745F7465737401011441D59F4B718AC00000000000000114C4B01D3810579550997AC5641E759E20D99B51C10001000100","proof":{"aunts":[]}}}],"peer_key":""}]}
{"time":"2016-04-03T11:23:54.390Z","msg":[1,{"height":1,"round":0,"step":"RoundStepPrevote"}]}
{"time":"2016-04-03T11:23:54.390Z","msg":[2,{"msg":[20,{"ValidatorIndex":0,"Vote":{"height":1,"round":0,"type":1,"block_hash":"4291966B8A9DFBA00AEC7C700F2718E61DF4331D","block_parts_header":{"total":1,"hash":"3BA1E90CB868DA6B4FD7F3589826EC461E9EB4EF"},"signature":"47D2A75A4E2F15DB1F0D1B656AC0637AF9AADDFEB6A156874F6553C73895E5D5DC948DBAEF15E61276C5342D0E638DFCB77C971CD282096EA8735A564A90F008"}}],"peer_key":""}]}
{"time":"2016-04-03T11:23:54.392Z","msg":[1,{"height":1,"round":0,"step":"RoundStepPrecommit"}]}
{"time":"2016-04-03T11:23:54.392Z","msg":[2,{"msg":[20,{"ValidatorIndex":0,"Vote":{"height":1,"round":0,"type":2,"block_hash":"4291966B8A9DFBA00AEC7C700F2718E61DF4331D","block_parts_header":{"total":1,"hash":"3BA1E90CB868DA6B4FD7F3589826EC461E9EB4EF"},"signature":"39147DA595F08B73CF8C899967C8403B5872FD9042FFA4E239159E0B6C5D9665C9CA81D766EACA2AE658872F94C2FCD1E34BF51859CD5B274DA8512BACE4B50D"}}],"peer_key":""}]}
`
proposeLine: stepChanges[0],
prevoteLine: stepChanges[1],
precommitLine: stepChanges[2],
}
}
// map lines in the above wal to privVal step
var mapPrivValStep = map[int]int8{
0: 0,
1: 0,
2: 1,
3: 1,
4: 1,
5: 2,
6: 2,
7: 3,
func newMapFromChanges(changes []int) map[int]int8 {
changes = append(changes, changes[2]+1) // so we add the last step change to the map
m := make(map[int]int8)
var count int
for changeNum, nextChange := range changes {
for ; count < nextChange; count++ {
m[count] = int8(changeNum)
}
}
return m
}
func readWAL(p string) string {
b, err := ioutil.ReadFile(p)
if err != nil {
panic(err)
}
return string(b)
}
func writeWAL(log string) string {
@ -88,27 +88,29 @@ func writeWAL(log string) string {
return name
}
func waitForBlock(newBlockCh chan interface{}) {
func waitForBlock(newBlockCh chan interface{}, thisCase *testCase, i int) {
after := time.After(time.Second * 10)
select {
case <-newBlockCh:
case <-after:
panic("Timed out waiting for new block")
panic(Fmt("Timed out waiting for new block for case '%s' line %d", thisCase.name, i))
}
}
func runReplayTest(t *testing.T, cs *ConsensusState, fileName string, newBlockCh chan interface{}) {
func runReplayTest(t *testing.T, cs *ConsensusState, fileName string, newBlockCh chan interface{},
thisCase *testCase, i int) {
cs.config.Set("cswal", fileName)
cs.Start()
// Wait to make a new block.
// This is just a signal that we haven't halted; its not something contained in the WAL itself.
// Assuming the consensus state is running, replay of any WAL, including the empty one,
// should eventually be followed by a new block, or else something is wrong
waitForBlock(newBlockCh)
waitForBlock(newBlockCh, thisCase, i)
cs.Stop()
}
func setupReplayTest(nLines int, crashAfter bool) (*ConsensusState, chan interface{}, string, string) {
func setupReplayTest(thisCase *testCase, nLines int, crashAfter bool) (*ConsensusState, chan interface{}, string, string) {
fmt.Println("-------------------------------------")
log.Notice(Fmt("Starting replay test of %d lines of WAL (crash before write)", nLines))
@ -117,17 +119,17 @@ func setupReplayTest(nLines int, crashAfter bool) (*ConsensusState, chan interfa
lineStep -= 1
}
split := strings.Split(testLog, "\n")
split := strings.Split(thisCase.log, "\n")
lastMsg := split[nLines]
// we write those lines up to (not including) one with the signature
fileName := writeWAL(strings.Join(split[:nLines], "\n") + "\n")
cs := fixedConsensusState()
cs := fixedConsensusStateDummy()
// set the last step according to when we crashed vs the wal
cs.privValidator.LastHeight = 1 // first block
cs.privValidator.LastStep = mapPrivValStep[lineStep]
cs.privValidator.LastStep = thisCase.stepMap[lineStep]
fmt.Println("LAST STEP", cs.privValidator.LastStep)
@ -141,10 +143,12 @@ func setupReplayTest(nLines int, crashAfter bool) (*ConsensusState, chan interfa
// as if the log was written after signing, before the crash
func TestReplayCrashAfterWrite(t *testing.T) {
split := strings.Split(testLog, "\n")
for i := 0; i < len(split)-1; i++ {
cs, newBlockCh, _, f := setupReplayTest(i+1, true)
runReplayTest(t, cs, f, newBlockCh)
for _, thisCase := range testCases {
split := strings.Split(thisCase.log, "\n")
for i := 0; i < len(split)-1; i++ {
cs, newBlockCh, _, f := setupReplayTest(thisCase, i+1, true)
runReplayTest(t, cs, f, newBlockCh, thisCase, i+1)
}
}
}
@ -153,50 +157,59 @@ func TestReplayCrashAfterWrite(t *testing.T) {
// This relies on privValidator.LastSignature being set
func TestReplayCrashBeforeWritePropose(t *testing.T) {
cs, newBlockCh, proposalMsg, f := setupReplayTest(2, false) // propose
// Set LastSig
var err error
var msg ConsensusLogMessage
wire.ReadJSON(&msg, []byte(proposalMsg), &err)
proposal := msg.Msg.(msgInfo).Msg.(*ProposalMessage)
if err != nil {
t.Fatalf("Error reading json data: %v", err)
for _, thisCase := range testCases {
lineNum := thisCase.proposeLine
cs, newBlockCh, proposalMsg, f := setupReplayTest(thisCase, lineNum, false) // propose
// Set LastSig
var err error
var msg ConsensusLogMessage
wire.ReadJSON(&msg, []byte(proposalMsg), &err)
proposal := msg.Msg.(msgInfo).Msg.(*ProposalMessage)
if err != nil {
t.Fatalf("Error reading json data: %v", err)
}
cs.privValidator.LastSignBytes = types.SignBytes(cs.state.ChainID, proposal.Proposal)
cs.privValidator.LastSignature = proposal.Proposal.Signature
runReplayTest(t, cs, f, newBlockCh, thisCase, lineNum)
}
cs.privValidator.LastSignBytes = types.SignBytes(cs.state.ChainID, proposal.Proposal)
cs.privValidator.LastSignature = proposal.Proposal.Signature
runReplayTest(t, cs, f, newBlockCh)
}
func TestReplayCrashBeforeWritePrevote(t *testing.T) {
cs, newBlockCh, voteMsg, f := setupReplayTest(5, false) // prevote
types.AddListenerForEvent(cs.evsw, "tester", types.EventStringCompleteProposal(), func(data types.TMEventData) {
// Set LastSig
var err error
var msg ConsensusLogMessage
wire.ReadJSON(&msg, []byte(voteMsg), &err)
vote := msg.Msg.(msgInfo).Msg.(*VoteMessage)
if err != nil {
t.Fatalf("Error reading json data: %v", err)
}
cs.privValidator.LastSignBytes = types.SignBytes(cs.state.ChainID, vote.Vote)
cs.privValidator.LastSignature = vote.Vote.Signature
})
runReplayTest(t, cs, f, newBlockCh)
for _, thisCase := range testCases {
lineNum := thisCase.prevoteLine
cs, newBlockCh, voteMsg, f := setupReplayTest(thisCase, lineNum, false) // prevote
types.AddListenerForEvent(cs.evsw, "tester", types.EventStringCompleteProposal(), func(data types.TMEventData) {
// Set LastSig
var err error
var msg ConsensusLogMessage
wire.ReadJSON(&msg, []byte(voteMsg), &err)
vote := msg.Msg.(msgInfo).Msg.(*VoteMessage)
if err != nil {
t.Fatalf("Error reading json data: %v", err)
}
cs.privValidator.LastSignBytes = types.SignBytes(cs.state.ChainID, vote.Vote)
cs.privValidator.LastSignature = vote.Vote.Signature
})
runReplayTest(t, cs, f, newBlockCh, thisCase, lineNum)
}
}
func TestReplayCrashBeforeWritePrecommit(t *testing.T) {
cs, newBlockCh, voteMsg, f := setupReplayTest(7, false) // precommit
types.AddListenerForEvent(cs.evsw, "tester", types.EventStringPolka(), func(data types.TMEventData) {
// Set LastSig
var err error
var msg ConsensusLogMessage
wire.ReadJSON(&msg, []byte(voteMsg), &err)
vote := msg.Msg.(msgInfo).Msg.(*VoteMessage)
if err != nil {
t.Fatalf("Error reading json data: %v", err)
}
cs.privValidator.LastSignBytes = types.SignBytes(cs.state.ChainID, vote.Vote)
cs.privValidator.LastSignature = vote.Vote.Signature
})
runReplayTest(t, cs, f, newBlockCh)
for _, thisCase := range testCases {
lineNum := thisCase.precommitLine
cs, newBlockCh, voteMsg, f := setupReplayTest(thisCase, lineNum, false) // precommit
types.AddListenerForEvent(cs.evsw, "tester", types.EventStringPolka(), func(data types.TMEventData) {
// Set LastSig
var err error
var msg ConsensusLogMessage
wire.ReadJSON(&msg, []byte(voteMsg), &err)
vote := msg.Msg.(msgInfo).Msg.(*VoteMessage)
if err != nil {
t.Fatalf("Error reading json data: %v", err)
}
cs.privValidator.LastSignBytes = types.SignBytes(cs.state.ChainID, vote.Vote)
cs.privValidator.LastSignature = vote.Vote.Signature
})
runReplayTest(t, cs, f, newBlockCh, thisCase, lineNum)
}
}

2
consensus/state.go
View File

@ -1498,7 +1498,7 @@ func (cs *ConsensusState) addVote(valIndex int, vote *types.Vote, peerKey string
}
// Height mismatch, bad peer?
log.Info("Vote ignored and not added", "voteHeight", vote.Height, "csHeight", cs.Height)
log.Info("Vote ignored and not added", "voteHeight", vote.Height, "csHeight", cs.Height, "err", err)
return
}

36
consensus/test_data/README.md Normal file
View File

@ -0,0 +1,36 @@
# Generating test data
The easiest way to generate this data is to copy `~/.tendermint_test/somedir/*` to `~/.tendermint`
and to run a local node.
Be sure to set the db to "leveldb" to create a cswal file in `~/.tendermint/data/cswal`.
If you need to change the signatures, you can use a script as follows:
The privBytes comes from `config/tendermint_test/...`:
```
package main
import (
"encoding/hex"
"fmt"
"github.com/tendermint/go-crypto"
)
func main() {
signBytes, err := hex.DecodeString("7B22636861696E5F6964223A2274656E6465726D696E745F74657374222C22766F7465223A7B22626C6F636B5F68617368223A2242453544373939433846353044354645383533364334333932464443384537423342313830373638222C22626C6F636B5F70617274735F686561646572223A506172745365747B543A31204236323237323535464632307D2C22686569676874223A312C22726F756E64223A302C2274797065223A327D7D")
if err != nil {
panic(err)
}
privBytes, err := hex.DecodeString("27F82582AEFAE7AB151CFB01C48BB6C1A0DA78F9BDDA979A9F70A84D074EB07D3B3069C422E19688B45CBFAE7BB009FC0FA1B1EA86593519318B7214853803C8")
if err != nil {
panic(err)
}
privKey := crypto.PrivKeyEd25519{}
copy(privKey[:], privBytes)
signature := privKey.Sign(signBytes)
signatureEd25519 := signature.(crypto.SignatureEd25519)
fmt.Printf("Signature Bytes: %X\n", signatureEd25519[:])
}
```

8
consensus/test_data/empty_block.cswal Normal file
View File

@ -0,0 +1,8 @@
{"time":"2016-04-03T11:23:54.387Z","msg":[3,{"duration":972835254,"height":1,"round":0,"step":1}]}
{"time":"2016-04-03T11:23:54.388Z","msg":[1,{"height":1,"round":0,"step":"RoundStepPropose"}]}
{"time":"2016-04-03T11:23:54.388Z","msg":[2,{"msg":[17,{"Proposal":{"height":1,"round":0,"block_parts_header":{"total":1,"hash":"3BA1E90CB868DA6B4FD7F3589826EC461E9EB4EF"},"pol_round":-1,"signature":"3A2ECD5023B21EC144EC16CFF1B992A4321317B83EEDD8969FDFEA6EB7BF4389F38DDA3E7BB109D63A07491C16277A197B241CF1F05F5E485C59882ECACD9E07"}}],"peer_key":""}]}
{"time":"2016-04-03T11:23:54.389Z","msg":[2,{"msg":[19,{"Height":1,"Round":0,"Part":{"index":0,"bytes":"0101010F74656E6465726D696E745F7465737401011441D59F4B718AC00000000000000114C4B01D3810579550997AC5641E759E20D99B51C10001000100","proof":{"aunts":[]}}}],"peer_key":""}]}
{"time":"2016-04-03T11:23:54.390Z","msg":[1,{"height":1,"round":0,"step":"RoundStepPrevote"}]}
{"time":"2016-04-03T11:23:54.390Z","msg":[2,{"msg":[20,{"ValidatorIndex":0,"Vote":{"height":1,"round":0,"type":1,"block_hash":"4291966B8A9DFBA00AEC7C700F2718E61DF4331D","block_parts_header":{"total":1,"hash":"3BA1E90CB868DA6B4FD7F3589826EC461E9EB4EF"},"signature":"47D2A75A4E2F15DB1F0D1B656AC0637AF9AADDFEB6A156874F6553C73895E5D5DC948DBAEF15E61276C5342D0E638DFCB77C971CD282096EA8735A564A90F008"}}],"peer_key":""}]}
{"time":"2016-04-03T11:23:54.392Z","msg":[1,{"height":1,"round":0,"step":"RoundStepPrecommit"}]}
{"time":"2016-04-03T11:23:54.392Z","msg":[2,{"msg":[20,{"ValidatorIndex":0,"Vote":{"height":1,"round":0,"type":2,"block_hash":"4291966B8A9DFBA00AEC7C700F2718E61DF4331D","block_parts_header":{"total":1,"hash":"3BA1E90CB868DA6B4FD7F3589826EC461E9EB4EF"},"signature":"39147DA595F08B73CF8C899967C8403B5872FD9042FFA4E239159E0B6C5D9665C9CA81D766EACA2AE658872F94C2FCD1E34BF51859CD5B274DA8512BACE4B50D"}}],"peer_key":""}]}

8
consensus/test_data/small_block1.cswal Normal file
View File

@ -0,0 +1,8 @@
{"time":"2016-10-11T15:29:08.113Z","msg":[3,{"duration":0,"height":1,"round":0,"step":1}]}
{"time":"2016-10-11T15:29:08.115Z","msg":[1,{"height":1,"round":0,"step":"RoundStepPropose"}]}
{"time":"2016-10-11T15:29:08.115Z","msg":[2,{"msg":[17,{"Proposal":{"height":1,"round":0,"block_parts_header":{"total":1,"hash":"A2C0B5D384DFF2692FF679D00CEAE93A55DCDD1A"},"pol_round":-1,"signature":"116961B715FB54C09983209F7F3BFD95C7DA2E0D7AB9CFE9F0750F2402E2AEB715CFD55FB2C5DB88F485391D426A48705E0474AB94328463290D086D88BAD704"}}],"peer_key":""}]}
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