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.
233 lines
7.1 KiB
233 lines
7.1 KiB
package consensus
|
|
|
|
import (
|
|
"bufio"
|
|
"bytes"
|
|
"fmt"
|
|
"io"
|
|
"path/filepath"
|
|
"testing"
|
|
"time"
|
|
|
|
db "github.com/tendermint/tm-db"
|
|
|
|
"github.com/tendermint/tendermint/abci/example/kvstore"
|
|
cfg "github.com/tendermint/tendermint/config"
|
|
tmcon "github.com/tendermint/tendermint/consensus"
|
|
"github.com/tendermint/tendermint/libs/log"
|
|
tmrand "github.com/tendermint/tendermint/libs/rand"
|
|
"github.com/tendermint/tendermint/privval"
|
|
"github.com/tendermint/tendermint/proxy"
|
|
sm "github.com/tendermint/tendermint/state"
|
|
"github.com/tendermint/tendermint/store"
|
|
"github.com/tendermint/tendermint/types"
|
|
)
|
|
|
|
// WALGenerateNBlocks generates a consensus WAL. It does this by spinning up a
|
|
// stripped down version of node (proxy app, event bus, consensus state) with a
|
|
// persistent kvstore application and special consensus wal instance
|
|
// (byteBufferWAL) and waits until numBlocks are created.
|
|
// If the node fails to produce given numBlocks, it returns an error.
|
|
func WALGenerateNBlocks(t *testing.T, wr io.Writer, numBlocks int) (err error) {
|
|
config := getConfig(t)
|
|
|
|
app := kvstore.NewPersistentKVStoreApplication(filepath.Join(config.DBDir(), "wal_generator"))
|
|
|
|
logger := log.TestingLogger().With("wal_generator", "wal_generator")
|
|
logger.Info("generating WAL (last height msg excluded)", "numBlocks", numBlocks)
|
|
|
|
// ///////////////////////////////////////////////////////////////////////////
|
|
// COPY PASTE FROM node.go WITH A FEW MODIFICATIONS
|
|
// NOTE: we can't import node package because of circular dependency.
|
|
// NOTE: we don't do handshake so need to set state.Version.Consensus.App directly.
|
|
privValidatorKeyFile := config.PrivValidatorKeyFile()
|
|
privValidatorStateFile := config.PrivValidatorStateFile()
|
|
privValidator, err := privval.LoadOrGenFilePV(privValidatorKeyFile, privValidatorStateFile)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
genDoc, err := types.GenesisDocFromFile(config.GenesisFile())
|
|
if err != nil {
|
|
return fmt.Errorf("failed to read genesis file: %w", err)
|
|
}
|
|
blockStoreDB := db.NewMemDB()
|
|
stateDB := blockStoreDB
|
|
stateStore := sm.NewStore(stateDB)
|
|
state, err := sm.MakeGenesisState(genDoc)
|
|
if err != nil {
|
|
return fmt.Errorf("failed to make genesis state: %w", err)
|
|
}
|
|
state.Version.Consensus.App = kvstore.ProtocolVersion
|
|
if err = stateStore.Save(state); err != nil {
|
|
t.Error(err)
|
|
}
|
|
|
|
blockStore := store.NewBlockStore(blockStoreDB)
|
|
|
|
proxyApp := proxy.NewAppConns(proxy.NewLocalClientCreator(app))
|
|
proxyApp.SetLogger(logger.With("module", "proxy"))
|
|
if err := proxyApp.Start(); err != nil {
|
|
return fmt.Errorf("failed to start proxy app connections: %w", err)
|
|
}
|
|
t.Cleanup(func() {
|
|
if err := proxyApp.Stop(); err != nil {
|
|
t.Error(err)
|
|
}
|
|
})
|
|
|
|
eventBus := types.NewEventBus()
|
|
eventBus.SetLogger(logger.With("module", "events"))
|
|
if err := eventBus.Start(); err != nil {
|
|
return fmt.Errorf("failed to start event bus: %w", err)
|
|
}
|
|
t.Cleanup(func() {
|
|
if err := eventBus.Stop(); err != nil {
|
|
t.Error(err)
|
|
}
|
|
})
|
|
mempool := emptyMempool{}
|
|
evpool := sm.EmptyEvidencePool{}
|
|
blockExec := sm.NewBlockExecutor(stateStore, log.TestingLogger(), proxyApp.Consensus(), mempool, evpool)
|
|
consensusState := NewState(config.Consensus, state.Copy(),
|
|
blockExec, blockStore, mempool, evpool, map[int64]Misbehavior{})
|
|
consensusState.SetLogger(logger)
|
|
consensusState.SetEventBus(eventBus)
|
|
if privValidator != nil {
|
|
consensusState.SetPrivValidator(privValidator)
|
|
}
|
|
// END OF COPY PASTE
|
|
// ///////////////////////////////////////////////////////////////////////////
|
|
|
|
// set consensus wal to buffered WAL, which will write all incoming msgs to buffer
|
|
numBlocksWritten := make(chan struct{})
|
|
wal := newByteBufferWAL(logger, NewWALEncoder(wr), int64(numBlocks), numBlocksWritten)
|
|
// see wal.go#103
|
|
if err := wal.Write(tmcon.EndHeightMessage{Height: 0}); err != nil {
|
|
t.Error(err)
|
|
}
|
|
|
|
consensusState.wal = wal
|
|
|
|
if err := consensusState.Start(); err != nil {
|
|
return fmt.Errorf("failed to start consensus state: %w", err)
|
|
}
|
|
|
|
select {
|
|
case <-numBlocksWritten:
|
|
if err := consensusState.Stop(); err != nil {
|
|
t.Error(err)
|
|
}
|
|
return nil
|
|
case <-time.After(1 * time.Minute):
|
|
if err := consensusState.Stop(); err != nil {
|
|
t.Error(err)
|
|
}
|
|
return fmt.Errorf("waited too long for tendermint to produce %d blocks (grep logs for `wal_generator`)", numBlocks)
|
|
}
|
|
}
|
|
|
|
// WALWithNBlocks returns a WAL content with numBlocks.
|
|
func WALWithNBlocks(t *testing.T, numBlocks int) (data []byte, err error) {
|
|
var b bytes.Buffer
|
|
wr := bufio.NewWriter(&b)
|
|
|
|
if err := WALGenerateNBlocks(t, wr, numBlocks); err != nil {
|
|
return []byte{}, err
|
|
}
|
|
|
|
wr.Flush()
|
|
return b.Bytes(), nil
|
|
}
|
|
|
|
func randPort() int {
|
|
// returns between base and base + spread
|
|
base, spread := 20000, 20000
|
|
return base + tmrand.Intn(spread)
|
|
}
|
|
|
|
func makeAddrs() (string, string, string) {
|
|
start := randPort()
|
|
return fmt.Sprintf("tcp://127.0.0.1:%d", start),
|
|
fmt.Sprintf("tcp://127.0.0.1:%d", start+1),
|
|
fmt.Sprintf("tcp://127.0.0.1:%d", start+2)
|
|
}
|
|
|
|
// getConfig returns a config for test cases
|
|
func getConfig(t *testing.T) *cfg.Config {
|
|
c := cfg.ResetTestRoot(t.Name())
|
|
|
|
// and we use random ports to run in parallel
|
|
tm, rpc, grpc := makeAddrs()
|
|
c.P2P.ListenAddress = tm
|
|
c.RPC.ListenAddress = rpc
|
|
c.RPC.GRPCListenAddress = grpc
|
|
return c
|
|
}
|
|
|
|
// byteBufferWAL is a WAL which writes all msgs to a byte buffer. Writing stops
|
|
// when the heightToStop is reached. Client will be notified via
|
|
// signalWhenStopsTo channel.
|
|
type byteBufferWAL struct {
|
|
enc *WALEncoder
|
|
stopped bool
|
|
heightToStop int64
|
|
signalWhenStopsTo chan<- struct{}
|
|
|
|
logger log.Logger
|
|
}
|
|
|
|
// needed for determinism
|
|
var fixedTime, _ = time.Parse(time.RFC3339, "2017-01-02T15:04:05Z")
|
|
|
|
func newByteBufferWAL(logger log.Logger, enc *WALEncoder, nBlocks int64, signalStop chan<- struct{}) *byteBufferWAL {
|
|
return &byteBufferWAL{
|
|
enc: enc,
|
|
heightToStop: nBlocks,
|
|
signalWhenStopsTo: signalStop,
|
|
logger: logger,
|
|
}
|
|
}
|
|
|
|
// Save writes message to the internal buffer except when heightToStop is
|
|
// reached, in which case it will signal the caller via signalWhenStopsTo and
|
|
// skip writing.
|
|
func (w *byteBufferWAL) Write(m tmcon.WALMessage) error {
|
|
if w.stopped {
|
|
w.logger.Debug("WAL already stopped. Not writing message", "msg", m)
|
|
return nil
|
|
}
|
|
|
|
if endMsg, ok := m.(tmcon.EndHeightMessage); ok {
|
|
w.logger.Debug("WAL write end height message", "height", endMsg.Height, "stopHeight", w.heightToStop)
|
|
if endMsg.Height == w.heightToStop {
|
|
w.logger.Debug("Stopping WAL at height", "height", endMsg.Height)
|
|
w.signalWhenStopsTo <- struct{}{}
|
|
w.stopped = true
|
|
return nil
|
|
}
|
|
}
|
|
|
|
w.logger.Debug("WAL Write Message", "msg", m)
|
|
err := w.enc.Encode(&tmcon.TimedWALMessage{Time: fixedTime, Msg: m})
|
|
if err != nil {
|
|
panic(fmt.Sprintf("failed to encode the msg %v", m))
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (w *byteBufferWAL) WriteSync(m tmcon.WALMessage) error {
|
|
return w.Write(m)
|
|
}
|
|
|
|
func (w *byteBufferWAL) FlushAndSync() error { return nil }
|
|
|
|
func (w *byteBufferWAL) SearchForEndHeight(
|
|
height int64,
|
|
options *tmcon.WALSearchOptions) (rd io.ReadCloser, found bool, err error) {
|
|
return nil, false, nil
|
|
}
|
|
|
|
func (w *byteBufferWAL) Start() error { return nil }
|
|
func (w *byteBufferWAL) Stop() error { return nil }
|
|
func (w *byteBufferWAL) Wait() {}
|