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package node
import (
"context"
"errors"
"fmt"
"net"
"net/http"
"strconv"
"time"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promhttp"
"github.com/rs/cors"
abciclient "github.com/tendermint/tendermint/abci/client"
abci "github.com/tendermint/tendermint/abci/types"
"github.com/tendermint/tendermint/config"
"github.com/tendermint/tendermint/crypto"
"github.com/tendermint/tendermint/internal/consensus"
"github.com/tendermint/tendermint/internal/eventbus"
"github.com/tendermint/tendermint/internal/mempool"
"github.com/tendermint/tendermint/internal/p2p"
"github.com/tendermint/tendermint/internal/proxy"
tmpubsub "github.com/tendermint/tendermint/internal/pubsub"
rpccore "github.com/tendermint/tendermint/internal/rpc/core"
sm "github.com/tendermint/tendermint/internal/state"
"github.com/tendermint/tendermint/internal/state/indexer"
"github.com/tendermint/tendermint/internal/statesync"
"github.com/tendermint/tendermint/internal/store"
"github.com/tendermint/tendermint/libs/log"
tmnet "github.com/tendermint/tendermint/libs/net"
"github.com/tendermint/tendermint/libs/service"
"github.com/tendermint/tendermint/libs/strings"
tmtime "github.com/tendermint/tendermint/libs/time"
"github.com/tendermint/tendermint/privval"
tmgrpc "github.com/tendermint/tendermint/privval/grpc"
rpcserver "github.com/tendermint/tendermint/rpc/jsonrpc/server"
"github.com/tendermint/tendermint/types"
_ "net/http/pprof" // nolint: gosec // securely exposed on separate, optional port
_ "github.com/lib/pq" // provide the psql db driver
)
// nodeImpl is the highest level interface to a full Tendermint node.
// It includes all configuration information and running services.
type nodeImpl struct {
service.BaseService
logger log.Logger
// config
config *config.Config
genesisDoc *types.GenesisDoc // initial validator set
privValidator types.PrivValidator // local node's validator key
// network
peerManager *p2p.PeerManager
router *p2p.Router
nodeInfo types.NodeInfo
nodeKey types.NodeKey // our node privkey
isListening bool
// services
eventBus *eventbus.EventBus // pub/sub for services
eventSinks []indexer.EventSink
stateStore sm.Store
blockStore *store.BlockStore // store the blockchain to disk
bcReactor service.Service // for block-syncing
mempoolReactor service.Service // for gossipping transactions
mempool mempool.Mempool
stateSync bool // whether the node should state sync on startup
stateSyncReactor *statesync.Reactor // for hosting and restoring state sync snapshots
consensusReactor *consensus.Reactor // for participating in the consensus
pexReactor service.Service // for exchanging peer addresses
evidenceReactor service.Service
rpcListeners []net.Listener // rpc servers
shutdownOps closer
indexerService service.Service
rpcEnv *rpccore.Environment
prometheusSrv *http.Server
}
// newDefaultNode returns a Tendermint node with default settings for the
// PrivValidator, ClientCreator, GenesisDoc, and DBProvider.
// It implements NodeProvider.
func newDefaultNode(
ctx context.Context,
cfg *config.Config,
logger log.Logger,
) (service.Service, error) {
nodeKey, err := types.LoadOrGenNodeKey(cfg.NodeKeyFile())
if err != nil {
return nil, fmt.Errorf("failed to load or gen node key %s: %w", cfg.NodeKeyFile(), err)
}
if cfg.Mode == config.ModeSeed {
return makeSeedNode(
ctx,
cfg,
config.DefaultDBProvider,
nodeKey,
defaultGenesisDocProviderFunc(cfg),
logger,
)
}
var pval *privval.FilePV
if cfg.Mode == config.ModeValidator {
pval, err = privval.LoadOrGenFilePV(cfg.PrivValidator.KeyFile(), cfg.PrivValidator.StateFile())
if err != nil {
return nil, err
}
} else {
pval = nil
}
appClient, _ := proxy.DefaultClientCreator(logger, cfg.ProxyApp, cfg.ABCI, cfg.DBDir())
return makeNode(
ctx,
cfg,
pval,
nodeKey,
appClient,
defaultGenesisDocProviderFunc(cfg),
config.DefaultDBProvider,
logger,
)
}
// makeNode returns a new, ready to go, Tendermint Node.
func makeNode(
ctx context.Context,
cfg *config.Config,
privValidator types.PrivValidator,
nodeKey types.NodeKey,
clientCreator abciclient.Creator,
genesisDocProvider genesisDocProvider,
dbProvider config.DBProvider,
logger log.Logger,
) (service.Service, error) {
var cancel context.CancelFunc
ctx, cancel = context.WithCancel(ctx)
closers := []closer{convertCancelCloser(cancel)}
blockStore, stateDB, dbCloser, err := initDBs(cfg, dbProvider)
if err != nil {
return nil, combineCloseError(err, dbCloser)
}
closers = append(closers, dbCloser)
stateStore := sm.NewStore(stateDB)
genDoc, err := genesisDocProvider()
if err != nil {
return nil, combineCloseError(err, makeCloser(closers))
}
err = genDoc.ValidateAndComplete()
if err != nil {
return nil, combineCloseError(
fmt.Errorf("error in genesis doc: %w", err),
makeCloser(closers))
}
state, err := loadStateFromDBOrGenesisDocProvider(stateStore, genDoc)
if err != nil {
return nil, combineCloseError(err, makeCloser(closers))
}
nodeMetrics := defaultMetricsProvider(cfg.Instrumentation)(genDoc.ChainID)
// Create the proxyApp and establish connections to the ABCI app (consensus, mempool, query).
proxyApp := proxy.NewAppConns(clientCreator, logger.With("module", "proxy"), nodeMetrics.proxy)
if err := proxyApp.Start(ctx); err != nil {
return nil, fmt.Errorf("error starting proxy app connections: %w", err)
}
// EventBus and IndexerService must be started before the handshake because
// we might need to index the txs of the replayed block as this might not have happened
// when the node stopped last time (i.e. the node stopped after it saved the block
// but before it indexed the txs, or, endblocker panicked)
eventBus := eventbus.NewDefault(logger.With("module", "events"))
if err := eventBus.Start(ctx); err != nil {
return nil, combineCloseError(err, makeCloser(closers))
}
indexerService, eventSinks, err := createAndStartIndexerService(
ctx, cfg, dbProvider, eventBus,
logger, genDoc.ChainID, nodeMetrics.indexer)
if err != nil {
return nil, combineCloseError(err, makeCloser(closers))
}
// If an address is provided, listen on the socket for a connection from an
// external signing process.
if cfg.PrivValidator.ListenAddr != "" {
protocol, _ := tmnet.ProtocolAndAddress(cfg.PrivValidator.ListenAddr)
// FIXME: we should start services inside OnStart
switch protocol {
case "grpc":
privValidator, err = createAndStartPrivValidatorGRPCClient(ctx, cfg, genDoc.ChainID, logger)
if err != nil {
return nil, combineCloseError(
fmt.Errorf("error with private validator grpc client: %w", err),
makeCloser(closers))
}
default:
privValidator, err = createAndStartPrivValidatorSocketClient(
ctx,
cfg.PrivValidator.ListenAddr,
genDoc.ChainID,
logger,
)
if err != nil {
return nil, combineCloseError(
fmt.Errorf("error with private validator socket client: %w", err),
makeCloser(closers))
}
}
}
var pubKey crypto.PubKey
if cfg.Mode == config.ModeValidator {
pubKey, err = privValidator.GetPubKey(ctx)
if err != nil {
return nil, combineCloseError(fmt.Errorf("can't get pubkey: %w", err),
makeCloser(closers))
}
if pubKey == nil {
return nil, combineCloseError(
errors.New("could not retrieve public key from private validator"),
makeCloser(closers))
}
}
// Determine whether we should attempt state sync.
stateSync := cfg.StateSync.Enable && !onlyValidatorIsUs(state, pubKey)
if stateSync && state.LastBlockHeight > 0 {
logger.Info("Found local state with non-zero height, skipping state sync")
stateSync = false
}
// Create the handshaker, which calls RequestInfo, sets the AppVersion on the state,
// and replays any blocks as necessary to sync tendermint with the app.
if !stateSync {
if err := consensus.NewHandshaker(
logger.With("module", "handshaker"),
stateStore, state, blockStore, eventBus, genDoc,
).Handshake(ctx, proxyApp); err != nil {
return nil, combineCloseError(err, makeCloser(closers))
}
// Reload the state. It will have the Version.Consensus.App set by the
// Handshake, and may have other modifications as well (ie. depending on
// what happened during block replay).
state, err = stateStore.Load()
if err != nil {
return nil, combineCloseError(
fmt.Errorf("cannot load state: %w", err),
makeCloser(closers))
}
}
// Determine whether we should do block sync. This must happen after the handshake, since the
// app may modify the validator set, specifying ourself as the only validator.
blockSync := !onlyValidatorIsUs(state, pubKey)
logNodeStartupInfo(state, pubKey, logger, cfg.Mode)
// TODO: Fetch and provide real options and do proper p2p bootstrapping.
// TODO: Use a persistent peer database.
nodeInfo, err := makeNodeInfo(cfg, nodeKey, eventSinks, genDoc, state)
if err != nil {
return nil, combineCloseError(err, makeCloser(closers))
}
peerManager, peerCloser, err := createPeerManager(cfg, dbProvider, nodeKey.ID)
closers = append(closers, peerCloser)
if err != nil {
return nil, combineCloseError(
fmt.Errorf("failed to create peer manager: %w", err),
makeCloser(closers))
}
router, err := createRouter(ctx, logger, nodeMetrics.p2p, nodeInfo, nodeKey,
peerManager, cfg, proxyApp)
if err != nil {
return nil, combineCloseError(
fmt.Errorf("failed to create router: %w", err),
makeCloser(closers))
}
mpReactor, mp, err := createMempoolReactor(ctx,
cfg, proxyApp, state, nodeMetrics.mempool, peerManager, router, logger,
)
if err != nil {
return nil, combineCloseError(err, makeCloser(closers))
}
evReactor, evPool, err := createEvidenceReactor(ctx,
cfg, dbProvider, stateDB, blockStore, peerManager, router, logger,
)
if err != nil {
return nil, combineCloseError(err, makeCloser(closers))
}
// make block executor for consensus and blockchain reactors to execute blocks
blockExec := sm.NewBlockExecutor(
stateStore,
logger.With("module", "state"),
proxyApp.Consensus(),
mp,
evPool,
blockStore,
sm.BlockExecutorWithMetrics(nodeMetrics.state),
)
csReactor, csState, err := createConsensusReactor(ctx,
cfg, state, blockExec, blockStore, mp, evPool,
privValidator, nodeMetrics.consensus, stateSync || blockSync, eventBus,
peerManager, router, logger,
)
if err != nil {
return nil, combineCloseError(err, makeCloser(closers))
}
// Create the blockchain reactor. Note, we do not start block sync if we're
// doing a state sync first.
bcReactor, err := createBlockchainReactor(ctx,
logger, state, blockExec, blockStore, csReactor,
peerManager, router, blockSync && !stateSync, nodeMetrics.consensus,
)
if err != nil {
return nil, combineCloseError(
fmt.Errorf("could not create blockchain reactor: %w", err),
makeCloser(closers))
}
// Make ConsensusReactor. Don't enable fully if doing a state sync and/or block sync first.
// FIXME We need to update metrics here, since other reactors don't have access to them.
if stateSync {
nodeMetrics.consensus.StateSyncing.Set(1)
} else if blockSync {
nodeMetrics.consensus.BlockSyncing.Set(1)
}
// Set up state sync reactor, and schedule a sync if requested.
// FIXME The way we do phased startups (e.g. replay -> block sync -> consensus) is very messy,
// we should clean this whole thing up. See:
// https://github.com/tendermint/tendermint/issues/4644
ssChDesc := statesync.GetChannelDescriptors()
channels := make(map[p2p.ChannelID]*p2p.Channel, len(ssChDesc))
for idx := range ssChDesc {
chd := ssChDesc[idx]
ch, err := router.OpenChannel(ctx, chd)
if err != nil {
return nil, err
}
channels[ch.ID] = ch
}
stateSyncReactor := statesync.NewReactor(
genDoc.ChainID,
genDoc.InitialHeight,
*cfg.StateSync,
logger.With("module", "statesync"),
proxyApp.Snapshot(),
proxyApp.Query(),
channels[statesync.SnapshotChannel],
channels[statesync.ChunkChannel],
channels[statesync.LightBlockChannel],
channels[statesync.ParamsChannel],
peerManager.Subscribe(ctx),
stateStore,
blockStore,
cfg.StateSync.TempDir,
nodeMetrics.statesync,
)
var pexReactor service.Service
if cfg.P2P.PexReactor {
pexReactor, err = createPEXReactor(ctx, logger, peerManager, router)
if err != nil {
return nil, combineCloseError(err, makeCloser(closers))
}
}
node := &nodeImpl{
config: cfg,
logger: logger,
genesisDoc: genDoc,
privValidator: privValidator,
peerManager: peerManager,
router: router,
nodeInfo: nodeInfo,
nodeKey: nodeKey,
stateStore: stateStore,
blockStore: blockStore,
bcReactor: bcReactor,
mempoolReactor: mpReactor,
mempool: mp,
consensusReactor: csReactor,
stateSyncReactor: stateSyncReactor,
stateSync: stateSync,
pexReactor: pexReactor,
evidenceReactor: evReactor,
indexerService: indexerService,
eventBus: eventBus,
eventSinks: eventSinks,
shutdownOps: makeCloser(closers),
rpcEnv: &rpccore.Environment{
ProxyAppQuery: proxyApp.Query(),
ProxyAppMempool: proxyApp.Mempool(),
StateStore: stateStore,
BlockStore: blockStore,
EvidencePool: evPool,
ConsensusState: csState,
ConsensusReactor: csReactor,
BlockSyncReactor: bcReactor.(consensus.BlockSyncReactor),
PeerManager: peerManager,
GenDoc: genDoc,
EventSinks: eventSinks,
EventBus: eventBus,
Mempool: mp,
Logger: logger.With("module", "rpc"),
Config: *cfg.RPC,
},
}
node.rpcEnv.P2PTransport = node
node.BaseService = *service.NewBaseService(logger, "Node", node)
return node, nil
}
// makeSeedNode returns a new seed node, containing only p2p, pex reactor
func makeSeedNode(
ctx context.Context,
cfg *config.Config,
dbProvider config.DBProvider,
nodeKey types.NodeKey,
genesisDocProvider genesisDocProvider,
logger log.Logger,
) (service.Service, error) {
if !cfg.P2P.PexReactor {
return nil, errors.New("cannot run seed nodes with PEX disabled")
}
genDoc, err := genesisDocProvider()
if err != nil {
return nil, err
}
state, err := sm.MakeGenesisState(genDoc)
if err != nil {
return nil, err
}
nodeInfo, err := makeSeedNodeInfo(cfg, nodeKey, genDoc, state)
if err != nil {
return nil, err
}
// Setup Transport and Switch.
p2pMetrics := p2p.PrometheusMetrics(cfg.Instrumentation.Namespace, "chain_id", genDoc.ChainID)
peerManager, closer, err := createPeerManager(cfg, dbProvider, nodeKey.ID)
if err != nil {
return nil, combineCloseError(
fmt.Errorf("failed to create peer manager: %w", err),
closer)
}
router, err := createRouter(ctx, logger, p2pMetrics, nodeInfo, nodeKey,
peerManager, cfg, nil)
if err != nil {
return nil, combineCloseError(
fmt.Errorf("failed to create router: %w", err),
closer)
}
pexReactor, err := createPEXReactor(ctx, logger, peerManager, router)
if err != nil {
return nil, combineCloseError(err, closer)
}
node := &nodeImpl{
config: cfg,
logger: logger,
genesisDoc: genDoc,
nodeInfo: nodeInfo,
nodeKey: nodeKey,
peerManager: peerManager,
router: router,
shutdownOps: closer,
pexReactor: pexReactor,
}
node.BaseService = *service.NewBaseService(logger, "SeedNode", node)
return node, nil
}
// OnStart starts the Node. It implements service.Service.
func (n *nodeImpl) OnStart(ctx context.Context) error {
if n.config.RPC.PprofListenAddress != "" {
rpcCtx, rpcCancel := context.WithCancel(ctx)
srv := &http.Server{Addr: n.config.RPC.PprofListenAddress, Handler: nil}
go func() {
select {
case <-ctx.Done():
sctx, scancel := context.WithTimeout(context.Background(), time.Second)
defer scancel()
_ = srv.Shutdown(sctx)
case <-rpcCtx.Done():
}
}()
go func() {
n.logger.Info("Starting pprof server", "laddr", n.config.RPC.PprofListenAddress)
if err := srv.ListenAndServe(); err != nil {
n.logger.Error("pprof server error", "err", err)
rpcCancel()
}
}()
}
now := tmtime.Now()
genTime := n.genesisDoc.GenesisTime
if genTime.After(now) {
n.logger.Info("Genesis time is in the future. Sleeping until then...", "genTime", genTime)
time.Sleep(genTime.Sub(now))
}
// Start the RPC server before the P2P server
// so we can eg. receive txs for the first block
if n.config.RPC.ListenAddress != "" && n.config.Mode != config.ModeSeed {
listeners, err := n.startRPC(ctx)
if err != nil {
return err
}
n.rpcListeners = listeners
}
if n.config.Instrumentation.Prometheus && n.config.Instrumentation.PrometheusListenAddr != "" {
n.prometheusSrv = n.startPrometheusServer(ctx, n.config.Instrumentation.PrometheusListenAddr)
}
// Start the transport.
if err := n.router.Start(ctx); err != nil {
return err
}
n.isListening = true
if n.config.Mode != config.ModeSeed {
if err := n.bcReactor.Start(ctx); err != nil {
return err
}
// Start the real consensus reactor separately since the switch uses the shim.
if err := n.consensusReactor.Start(ctx); err != nil {
return err
}
// Start the real state sync reactor separately since the switch uses the shim.
if err := n.stateSyncReactor.Start(ctx); err != nil {
return err
}
// Start the real mempool reactor separately since the switch uses the shim.
if err := n.mempoolReactor.Start(ctx); err != nil {
return err
}
// Start the real evidence reactor separately since the switch uses the shim.
if err := n.evidenceReactor.Start(ctx); err != nil {
return err
}
}
if n.config.P2P.PexReactor {
if err := n.pexReactor.Start(ctx); err != nil {
return err
}
}
// Run state sync
// TODO: We shouldn't run state sync if we already have state that has a
// LastBlockHeight that is not InitialHeight
if n.stateSync {
bcR, ok := n.bcReactor.(consensus.BlockSyncReactor)
if !ok {
return fmt.Errorf("this blockchain reactor does not support switching from state sync")
}
// we need to get the genesis state to get parameters such as
state, err := sm.MakeGenesisState(n.genesisDoc)
if err != nil {
return fmt.Errorf("unable to derive state: %w", err)
}
// TODO: we may want to move these events within the respective
// reactors.
// At the beginning of the statesync start, we use the initialHeight as the event height
// because of the statesync doesn't have the concreate state height before fetched the snapshot.
d := types.EventDataStateSyncStatus{Complete: false, Height: state.InitialHeight}
if err := n.eventBus.PublishEventStateSyncStatus(ctx, d); err != nil {
n.logger.Error("failed to emit the statesync start event", "err", err)
}
// RUN STATE SYNC NOW:
//
// TODO: Eventually this should run as part of some
// separate orchestrator
n.logger.Info("starting state sync")
ssState, err := n.stateSyncReactor.Sync(ctx)
if err != nil {
n.logger.Error("state sync failed; shutting down this node", "err", err)
// stop the node
if err := n.Stop(); err != nil {
n.logger.Error("failed to shut down node", "err", err)
}
return err
}
n.consensusReactor.SetStateSyncingMetrics(0)
if err := n.eventBus.PublishEventStateSyncStatus(ctx,
types.EventDataStateSyncStatus{
Complete: true,
Height: ssState.LastBlockHeight,
}); err != nil {
n.logger.Error("failed to emit the statesync start event", "err", err)
return err
}
// TODO: Some form of orchestrator is needed here between the state
// advancing reactors to be able to control which one of the three
// is running
// FIXME Very ugly to have these metrics bleed through here.
n.consensusReactor.SetBlockSyncingMetrics(1)
if err := bcR.SwitchToBlockSync(ctx, ssState); err != nil {
n.logger.Error("failed to switch to block sync", "err", err)
return err
}
if err := n.eventBus.PublishEventBlockSyncStatus(ctx,
types.EventDataBlockSyncStatus{
Complete: false,
Height: ssState.LastBlockHeight,
}); err != nil {
n.logger.Error("failed to emit the block sync starting event", "err", err)
return err
}
}
return nil
}
// OnStop stops the Node. It implements service.Service.
func (n *nodeImpl) OnStop() {
n.logger.Info("Stopping Node")
if n.eventBus != nil {
n.eventBus.Wait()
}
if n.indexerService != nil {
n.indexerService.Wait()
}
for _, es := range n.eventSinks {
if err := es.Stop(); err != nil {
n.logger.Error("failed to stop event sink", "err", err)
}
}
if n.config.Mode != config.ModeSeed {
n.bcReactor.Wait()
n.consensusReactor.Wait()
n.stateSyncReactor.Wait()
n.mempoolReactor.Wait()
n.evidenceReactor.Wait()
}
n.pexReactor.Wait()
n.router.Wait()
n.isListening = false
// finally stop the listeners / external services
for _, l := range n.rpcListeners {
n.logger.Info("Closing rpc listener", "listener", l)
if err := l.Close(); err != nil {
n.logger.Error("error closing listener", "listener", l, "err", err)
}
}
if pvsc, ok := n.privValidator.(service.Service); ok {
pvsc.Wait()
}
if n.prometheusSrv != nil {
if err := n.prometheusSrv.Shutdown(context.Background()); err != nil {
// Error from closing listeners, or context timeout:
n.logger.Error("Prometheus HTTP server Shutdown", "err", err)
}
}
if err := n.shutdownOps(); err != nil {
if strings.TrimSpace(err.Error()) != "" {
n.logger.Error("problem shutting down additional services", "err", err)
}
}
if n.blockStore != nil {
if err := n.blockStore.Close(); err != nil {
n.logger.Error("problem closing blockstore", "err", err)
}
}
if n.stateStore != nil {
if err := n.stateStore.Close(); err != nil {
n.logger.Error("problem closing statestore", "err", err)
}
}
}
func (n *nodeImpl) startRPC(ctx context.Context) ([]net.Listener, error) {
if n.config.Mode == config.ModeValidator {
pubKey, err := n.privValidator.GetPubKey(ctx)
if pubKey == nil || err != nil {
return nil, fmt.Errorf("can't get pubkey: %w", err)
}
n.rpcEnv.PubKey = pubKey
}
if err := n.rpcEnv.InitGenesisChunks(); err != nil {
return nil, err
}
listenAddrs := strings.SplitAndTrimEmpty(n.config.RPC.ListenAddress, ",", " ")
routes := n.rpcEnv.GetRoutes()
if n.config.RPC.Unsafe {
n.rpcEnv.AddUnsafe(routes)
}
cfg := rpcserver.DefaultConfig()
cfg.MaxBodyBytes = n.config.RPC.MaxBodyBytes
cfg.MaxHeaderBytes = n.config.RPC.MaxHeaderBytes
cfg.MaxOpenConnections = n.config.RPC.MaxOpenConnections
// If necessary adjust global WriteTimeout to ensure it's greater than
// TimeoutBroadcastTxCommit.
// See https://github.com/tendermint/tendermint/issues/3435
if cfg.WriteTimeout <= n.config.RPC.TimeoutBroadcastTxCommit {
cfg.WriteTimeout = n.config.RPC.TimeoutBroadcastTxCommit + 1*time.Second
}
// we may expose the rpc over both a unix and tcp socket
listeners := make([]net.Listener, len(listenAddrs))
for i, listenAddr := range listenAddrs {
mux := http.NewServeMux()
rpcLogger := n.logger.With("module", "rpc-server")
wmLogger := rpcLogger.With("protocol", "websocket")
wm := rpcserver.NewWebsocketManager(routes,
rpcserver.OnDisconnect(func(remoteAddr string) {
err := n.eventBus.UnsubscribeAll(context.Background(), remoteAddr)
if err != nil && err != tmpubsub.ErrSubscriptionNotFound {
wmLogger.Error("Failed to unsubscribe addr from events", "addr", remoteAddr, "err", err)
}
}),
rpcserver.ReadLimit(cfg.MaxBodyBytes),
)
wm.SetLogger(wmLogger)
mux.HandleFunc("/websocket", wm.WebsocketHandler)
rpcserver.RegisterRPCFuncs(mux, routes, rpcLogger)
listener, err := rpcserver.Listen(
listenAddr,
cfg.MaxOpenConnections,
)
if err != nil {
return nil, err
}
var rootHandler http.Handler = mux
if n.config.RPC.IsCorsEnabled() {
corsMiddleware := cors.New(cors.Options{
AllowedOrigins: n.config.RPC.CORSAllowedOrigins,
AllowedMethods: n.config.RPC.CORSAllowedMethods,
AllowedHeaders: n.config.RPC.CORSAllowedHeaders,
})
rootHandler = corsMiddleware.Handler(mux)
}
if n.config.RPC.IsTLSEnabled() {
go func() {
if err := rpcserver.ServeTLS(
ctx,
listener,
rootHandler,
n.config.RPC.CertFile(),
n.config.RPC.KeyFile(),
rpcLogger,
cfg,
); err != nil {
n.logger.Error("error serving server with TLS", "err", err)
}
}()
} else {
go func() {
if err := rpcserver.Serve(
ctx,
listener,
rootHandler,
rpcLogger,
cfg,
); err != nil {
n.logger.Error("error serving server", "err", err)
}
}()
}
listeners[i] = listener
}
return listeners, nil
}
// startPrometheusServer starts a Prometheus HTTP server, listening for metrics
// collectors on addr.
func (n *nodeImpl) startPrometheusServer(ctx context.Context, addr string) *http.Server {
srv := &http.Server{
Addr: addr,
Handler: promhttp.InstrumentMetricHandler(
prometheus.DefaultRegisterer, promhttp.HandlerFor(
prometheus.DefaultGatherer,
promhttp.HandlerOpts{MaxRequestsInFlight: n.config.Instrumentation.MaxOpenConnections},
),
),
}
promCtx, promCancel := context.WithCancel(ctx)
go func() {
select {
case <-ctx.Done():
sctx, scancel := context.WithTimeout(context.Background(), time.Second)
defer scancel()
_ = srv.Shutdown(sctx)
case <-promCtx.Done():
}
}()
go func() {
if err := srv.ListenAndServe(); err != nil {
n.logger.Error("Prometheus HTTP server ListenAndServe", "err", err)
promCancel()
}
}()
return srv
}
// ConsensusReactor returns the Node's ConsensusReactor.
func (n *nodeImpl) ConsensusReactor() *consensus.Reactor {
return n.consensusReactor
}
// Mempool returns the Node's mempool.
func (n *nodeImpl) Mempool() mempool.Mempool {
return n.mempool
}
// EventBus returns the Node's EventBus.
func (n *nodeImpl) EventBus() *eventbus.EventBus {
return n.eventBus
}
// PrivValidator returns the Node's PrivValidator.
// XXX: for convenience only!
func (n *nodeImpl) PrivValidator() types.PrivValidator {
return n.privValidator
}
// GenesisDoc returns the Node's GenesisDoc.
func (n *nodeImpl) GenesisDoc() *types.GenesisDoc {
return n.genesisDoc
}
// RPCEnvironment makes sure RPC has all the objects it needs to operate.
func (n *nodeImpl) RPCEnvironment() *rpccore.Environment {
return n.rpcEnv
}
//------------------------------------------------------------------------------
func (n *nodeImpl) Listeners() []string {
return []string{
fmt.Sprintf("Listener(@%v)", n.config.P2P.ExternalAddress),
}
}
func (n *nodeImpl) IsListening() bool {
return n.isListening
}
// NodeInfo returns the Node's Info from the Switch.
func (n *nodeImpl) NodeInfo() types.NodeInfo {
return n.nodeInfo
}
// genesisDocProvider returns a GenesisDoc.
// It allows the GenesisDoc to be pulled from sources other than the
// filesystem, for instance from a distributed key-value store cluster.
type genesisDocProvider func() (*types.GenesisDoc, error)
// defaultGenesisDocProviderFunc returns a GenesisDocProvider that loads
// the GenesisDoc from the config.GenesisFile() on the filesystem.
func defaultGenesisDocProviderFunc(cfg *config.Config) genesisDocProvider {
return func() (*types.GenesisDoc, error) {
return types.GenesisDocFromFile(cfg.GenesisFile())
}
}
type nodeMetrics struct {
consensus *consensus.Metrics
indexer *indexer.Metrics
mempool *mempool.Metrics
p2p *p2p.Metrics
proxy *proxy.Metrics
state *sm.Metrics
statesync *statesync.Metrics
}
// metricsProvider returns consensus, p2p, mempool, state, statesync Metrics.
type metricsProvider func(chainID string) *nodeMetrics
// defaultMetricsProvider returns Metrics build using Prometheus client library
// if Prometheus is enabled. Otherwise, it returns no-op Metrics.
func defaultMetricsProvider(cfg *config.InstrumentationConfig) metricsProvider {
return func(chainID string) *nodeMetrics {
if cfg.Prometheus {
return &nodeMetrics{
consensus: consensus.PrometheusMetrics(cfg.Namespace, "chain_id", chainID),
indexer: indexer.PrometheusMetrics(cfg.Namespace, "chain_id", chainID),
mempool: mempool.PrometheusMetrics(cfg.Namespace, "chain_id", chainID),
p2p: p2p.PrometheusMetrics(cfg.Namespace, "chain_id", chainID),
proxy: proxy.PrometheusMetrics(cfg.Namespace, "chain_id", chainID),
state: sm.PrometheusMetrics(cfg.Namespace, "chain_id", chainID),
statesync: statesync.PrometheusMetrics(cfg.Namespace, "chain_id", chainID),
}
}
return &nodeMetrics{
consensus: consensus.NopMetrics(),
indexer: indexer.NopMetrics(),
mempool: mempool.NopMetrics(),
p2p: p2p.NopMetrics(),
proxy: proxy.NopMetrics(),
state: sm.NopMetrics(),
statesync: statesync.NopMetrics(),
}
}
}
//------------------------------------------------------------------------------
// loadStateFromDBOrGenesisDocProvider attempts to load the state from the
// database, or creates one using the given genesisDocProvider. On success this also
// returns the genesis doc loaded through the given provider.
func loadStateFromDBOrGenesisDocProvider(
stateStore sm.Store,
genDoc *types.GenesisDoc,
) (sm.State, error) {
// 1. Attempt to load state form the database
state, err := stateStore.Load()
if err != nil {
return sm.State{}, err
}
if state.IsEmpty() {
// 2. If it's not there, derive it from the genesis doc
state, err = sm.MakeGenesisState(genDoc)
if err != nil {
return sm.State{}, err
}
}
return state, nil
}
func createAndStartPrivValidatorSocketClient(
ctx context.Context,
listenAddr, chainID string,
logger log.Logger,
) (types.PrivValidator, error) {
pve, err := privval.NewSignerListener(listenAddr, logger)
if err != nil {
return nil, fmt.Errorf("failed to start private validator: %w", err)
}
pvsc, err := privval.NewSignerClient(ctx, pve, chainID)
if err != nil {
return nil, fmt.Errorf("failed to start private validator: %w", err)
}
// try to get a pubkey from private validate first time
_, err = pvsc.GetPubKey(ctx)
if err != nil {
return nil, fmt.Errorf("can't get pubkey: %w", err)
}
const (
retries = 50 // 50 * 100ms = 5s total
timeout = 100 * time.Millisecond
)
pvscWithRetries := privval.NewRetrySignerClient(pvsc, retries, timeout)
return pvscWithRetries, nil
}
func createAndStartPrivValidatorGRPCClient(
ctx context.Context,
cfg *config.Config,
chainID string,
logger log.Logger,
) (types.PrivValidator, error) {
pvsc, err := tmgrpc.DialRemoteSigner(
ctx,
cfg.PrivValidator,
chainID,
logger,
cfg.Instrumentation.Prometheus,
)
if err != nil {
return nil, fmt.Errorf("failed to start private validator: %w", err)
}
// try to get a pubkey from private validate first time
_, err = pvsc.GetPubKey(ctx)
if err != nil {
return nil, fmt.Errorf("can't get pubkey: %w", err)
}
return pvsc, nil
}
func getRouterConfig(conf *config.Config, proxyApp proxy.AppConns) p2p.RouterOptions {
opts := p2p.RouterOptions{
QueueType: conf.P2P.QueueType,
}
if conf.FilterPeers && proxyApp != nil {
opts.FilterPeerByID = func(ctx context.Context, id types.NodeID) error {
res, err := proxyApp.Query().QuerySync(ctx, abci.RequestQuery{
Path: fmt.Sprintf("/p2p/filter/id/%s", id),
})
if err != nil {
return err
}
if res.IsErr() {
return fmt.Errorf("error querying abci app: %v", res)
}
return nil
}
opts.FilterPeerByIP = func(ctx context.Context, ip net.IP, port uint16) error {
res, err := proxyApp.Query().QuerySync(ctx, abci.RequestQuery{
Path: fmt.Sprintf("/p2p/filter/addr/%s", net.JoinHostPort(ip.String(), strconv.Itoa(int(port)))),
})
if err != nil {
return err
}
if res.IsErr() {
return fmt.Errorf("error querying abci app: %v", res)
}
return nil
}
}
return opts
}