You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
269 lines
7.0 KiB
269 lines
7.0 KiB
package consensus
|
|
|
|
import (
|
|
"bufio"
|
|
"errors"
|
|
"fmt"
|
|
"os"
|
|
"strconv"
|
|
"strings"
|
|
|
|
. "github.com/tendermint/go-common"
|
|
cfg "github.com/tendermint/go-config"
|
|
dbm "github.com/tendermint/go-db"
|
|
bc "github.com/tendermint/tendermint/blockchain"
|
|
mempl "github.com/tendermint/tendermint/mempool"
|
|
"github.com/tendermint/tendermint/proxy"
|
|
sm "github.com/tendermint/tendermint/state"
|
|
"github.com/tendermint/tendermint/types"
|
|
)
|
|
|
|
//--------------------------------------------------------
|
|
// replay messages interactively or all at once
|
|
|
|
func RunReplayFile(config cfg.Config, walFile string, console bool) {
|
|
consensusState := newConsensusStateForReplay(config)
|
|
|
|
if err := consensusState.ReplayFile(walFile, console); err != nil {
|
|
Exit(Fmt("Error during consensus replay: %v", err))
|
|
}
|
|
}
|
|
|
|
// Replay msgs in file or start the console
|
|
func (cs *ConsensusState) ReplayFile(file string, console bool) error {
|
|
|
|
if cs.IsRunning() {
|
|
return errors.New("cs is already running, cannot replay")
|
|
}
|
|
if cs.wal != nil {
|
|
return errors.New("cs wal is open, cannot replay")
|
|
}
|
|
|
|
cs.startForReplay()
|
|
|
|
// ensure all new step events are regenerated as expected
|
|
newStepCh := subscribeToEvent(cs.evsw, "replay-test", types.EventStringNewRoundStep(), 1)
|
|
|
|
// just open the file for reading, no need to use wal
|
|
fp, err := os.OpenFile(file, os.O_RDONLY, 0666)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
pb := newPlayback(file, fp, cs, cs.state.Copy())
|
|
defer pb.fp.Close()
|
|
|
|
var nextN int // apply N msgs in a row
|
|
for pb.scanner.Scan() {
|
|
if nextN == 0 && console {
|
|
nextN = pb.replayConsoleLoop()
|
|
}
|
|
|
|
if err := pb.cs.readReplayMessage(pb.scanner.Bytes(), newStepCh); err != nil {
|
|
return err
|
|
}
|
|
|
|
if nextN > 0 {
|
|
nextN -= 1
|
|
}
|
|
pb.count += 1
|
|
}
|
|
return nil
|
|
}
|
|
|
|
//------------------------------------------------
|
|
// playback manager
|
|
|
|
type playback struct {
|
|
cs *ConsensusState
|
|
|
|
fp *os.File
|
|
scanner *bufio.Scanner
|
|
count int // how many lines/msgs into the file are we
|
|
|
|
// replays can be reset to beginning
|
|
fileName string // so we can close/reopen the file
|
|
genesisState *sm.State // so the replay session knows where to restart from
|
|
}
|
|
|
|
func newPlayback(fileName string, fp *os.File, cs *ConsensusState, genState *sm.State) *playback {
|
|
return &playback{
|
|
cs: cs,
|
|
fp: fp,
|
|
fileName: fileName,
|
|
genesisState: genState,
|
|
scanner: bufio.NewScanner(fp),
|
|
}
|
|
}
|
|
|
|
// go back count steps by resetting the state and running (pb.count - count) steps
|
|
func (pb *playback) replayReset(count int, newStepCh chan interface{}) error {
|
|
|
|
pb.cs.Stop()
|
|
pb.cs.Wait()
|
|
|
|
newCS := NewConsensusState(pb.cs.config, pb.genesisState.Copy(), pb.cs.proxyAppConn, pb.cs.blockStore, pb.cs.mempool)
|
|
newCS.SetEventSwitch(pb.cs.evsw)
|
|
newCS.startForReplay()
|
|
|
|
pb.fp.Close()
|
|
fp, err := os.OpenFile(pb.fileName, os.O_RDONLY, 0666)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
pb.fp = fp
|
|
pb.scanner = bufio.NewScanner(fp)
|
|
count = pb.count - count
|
|
log.Notice(Fmt("Reseting from %d to %d", pb.count, count))
|
|
pb.count = 0
|
|
pb.cs = newCS
|
|
for i := 0; pb.scanner.Scan() && i < count; i++ {
|
|
if err := pb.cs.readReplayMessage(pb.scanner.Bytes(), newStepCh); err != nil {
|
|
return err
|
|
}
|
|
pb.count += 1
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (cs *ConsensusState) startForReplay() {
|
|
|
|
log.Warn("Replay commands are disabled until someone updates them and writes tests")
|
|
/* TODO:!
|
|
// since we replay tocks we just ignore ticks
|
|
go func() {
|
|
for {
|
|
select {
|
|
case <-cs.tickChan:
|
|
case <-cs.Quit:
|
|
return
|
|
}
|
|
}
|
|
}()*/
|
|
}
|
|
|
|
// console function for parsing input and running commands
|
|
func (pb *playback) replayConsoleLoop() int {
|
|
for {
|
|
fmt.Printf("> ")
|
|
bufReader := bufio.NewReader(os.Stdin)
|
|
line, more, err := bufReader.ReadLine()
|
|
if more {
|
|
Exit("input is too long")
|
|
} else if err != nil {
|
|
Exit(err.Error())
|
|
}
|
|
|
|
tokens := strings.Split(string(line), " ")
|
|
if len(tokens) == 0 {
|
|
continue
|
|
}
|
|
|
|
switch tokens[0] {
|
|
case "next":
|
|
// "next" -> replay next message
|
|
// "next N" -> replay next N messages
|
|
|
|
if len(tokens) == 1 {
|
|
return 0
|
|
} else {
|
|
i, err := strconv.Atoi(tokens[1])
|
|
if err != nil {
|
|
fmt.Println("next takes an integer argument")
|
|
} else {
|
|
return i
|
|
}
|
|
}
|
|
|
|
case "back":
|
|
// "back" -> go back one message
|
|
// "back N" -> go back N messages
|
|
|
|
// NOTE: "back" is not supported in the state machine design,
|
|
// so we restart and replay up to
|
|
|
|
// ensure all new step events are regenerated as expected
|
|
newStepCh := subscribeToEvent(pb.cs.evsw, "replay-test", types.EventStringNewRoundStep(), 1)
|
|
if len(tokens) == 1 {
|
|
pb.replayReset(1, newStepCh)
|
|
} else {
|
|
i, err := strconv.Atoi(tokens[1])
|
|
if err != nil {
|
|
fmt.Println("back takes an integer argument")
|
|
} else if i > pb.count {
|
|
fmt.Printf("argument to back must not be larger than the current count (%d)\n", pb.count)
|
|
} else {
|
|
pb.replayReset(i, newStepCh)
|
|
}
|
|
}
|
|
|
|
case "rs":
|
|
// "rs" -> print entire round state
|
|
// "rs short" -> print height/round/step
|
|
// "rs <field>" -> print another field of the round state
|
|
|
|
rs := pb.cs.RoundState
|
|
if len(tokens) == 1 {
|
|
fmt.Println(rs)
|
|
} else {
|
|
switch tokens[1] {
|
|
case "short":
|
|
fmt.Printf("%v/%v/%v\n", rs.Height, rs.Round, rs.Step)
|
|
case "validators":
|
|
fmt.Println(rs.Validators)
|
|
case "proposal":
|
|
fmt.Println(rs.Proposal)
|
|
case "proposal_block":
|
|
fmt.Printf("%v %v\n", rs.ProposalBlockParts.StringShort(), rs.ProposalBlock.StringShort())
|
|
case "locked_round":
|
|
fmt.Println(rs.LockedRound)
|
|
case "locked_block":
|
|
fmt.Printf("%v %v\n", rs.LockedBlockParts.StringShort(), rs.LockedBlock.StringShort())
|
|
case "votes":
|
|
fmt.Println(rs.Votes.StringIndented(" "))
|
|
|
|
default:
|
|
fmt.Println("Unknown option", tokens[1])
|
|
}
|
|
}
|
|
case "n":
|
|
fmt.Println(pb.count)
|
|
}
|
|
}
|
|
return 0
|
|
}
|
|
|
|
//--------------------------------------------------------------------------------
|
|
|
|
// convenience for replay mode
|
|
func newConsensusStateForReplay(config cfg.Config) *ConsensusState {
|
|
// Get BlockStore
|
|
blockStoreDB := dbm.NewDB("blockstore", config.GetString("db_backend"), config.GetString("db_dir"))
|
|
blockStore := bc.NewBlockStore(blockStoreDB)
|
|
|
|
// Get State
|
|
stateDB := dbm.NewDB("state", config.GetString("db_backend"), config.GetString("db_dir"))
|
|
state := sm.MakeGenesisStateFromFile(stateDB, config.GetString("genesis_file"))
|
|
|
|
// Create proxyAppConn connection (consensus, mempool, query)
|
|
proxyApp := proxy.NewAppConns(config, proxy.DefaultClientCreator(config), NewHandshaker(config, state, blockStore))
|
|
_, err := proxyApp.Start()
|
|
if err != nil {
|
|
Exit(Fmt("Error starting proxy app conns: %v", err))
|
|
}
|
|
|
|
// add the chainid to the global config
|
|
config.Set("chain_id", state.ChainID)
|
|
|
|
// Make event switch
|
|
eventSwitch := types.NewEventSwitch()
|
|
if _, err := eventSwitch.Start(); err != nil {
|
|
Exit(Fmt("Failed to start event switch: %v", err))
|
|
}
|
|
|
|
mempool := mempl.NewMempool(config, proxyApp.Mempool())
|
|
|
|
consensusState := NewConsensusState(config, state.Copy(), proxyApp.Consensus(), blockStore, mempool)
|
|
consensusState.SetEventSwitch(eventSwitch)
|
|
return consensusState
|
|
}
|