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node.go
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node.go
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package node
import (
"bytes"
"context"
"errors"
"fmt"
"net"
"net/http"
"strings"
"time"
dbm "github.com/cometbft/cometbft-db"
"github.com/grafana/pyroscope-go"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promhttp"
"github.com/rs/cors"
sdktrace "go.opentelemetry.io/otel/sdk/trace"
abci "github.com/badrootd/celestia-core/abci/types"
bcv0 "github.com/badrootd/celestia-core/blockchain/v0"
bcv1 "github.com/badrootd/celestia-core/blockchain/v1"
bcv2 "github.com/badrootd/celestia-core/blockchain/v2"
cfg "github.com/badrootd/celestia-core/config"
cs "github.com/badrootd/celestia-core/consensus"
"github.com/badrootd/celestia-core/crypto"
"github.com/badrootd/celestia-core/evidence"
"github.com/badrootd/celestia-core/pkg/trace"
cmtjson "github.com/badrootd/celestia-core/libs/json"
"github.com/badrootd/celestia-core/libs/log"
cmtpubsub "github.com/badrootd/celestia-core/libs/pubsub"
"github.com/badrootd/celestia-core/libs/service"
"github.com/badrootd/celestia-core/light"
mempl "github.com/badrootd/celestia-core/mempool"
mempoolv2 "github.com/badrootd/celestia-core/mempool/cat"
mempoolv0 "github.com/badrootd/celestia-core/mempool/v0"
mempoolv1 "github.com/badrootd/celestia-core/mempool/v1"
"github.com/badrootd/celestia-core/p2p"
"github.com/badrootd/celestia-core/p2p/pex"
"github.com/badrootd/celestia-core/privval"
"github.com/badrootd/celestia-core/proxy"
rpccore "github.com/badrootd/celestia-core/rpc/core"
grpccore "github.com/badrootd/celestia-core/rpc/grpc"
rpcserver "github.com/badrootd/celestia-core/rpc/jsonrpc/server"
sm "github.com/badrootd/celestia-core/state"
"github.com/badrootd/celestia-core/state/indexer"
blockidxkv "github.com/badrootd/celestia-core/state/indexer/block/kv"
blockidxnull "github.com/badrootd/celestia-core/state/indexer/block/null"
"github.com/badrootd/celestia-core/state/indexer/sink/psql"
"github.com/badrootd/celestia-core/state/txindex"
"github.com/badrootd/celestia-core/state/txindex/kv"
"github.com/badrootd/celestia-core/state/txindex/null"
"github.com/badrootd/celestia-core/statesync"
"github.com/badrootd/celestia-core/store"
"github.com/badrootd/celestia-core/types"
cmttime "github.com/badrootd/celestia-core/types/time"
"github.com/badrootd/celestia-core/version"
_ "net/http/pprof" //nolint: gosec // securely exposed on separate, optional port
_ "github.com/lib/pq" // provide the psql db driver
)
//------------------------------------------------------------------------------
// DBContext specifies config information for loading a new DB.
type DBContext struct {
ID string
Config *cfg.Config
}
// DBProvider takes a DBContext and returns an instantiated DB.
type DBProvider func(*DBContext) (dbm.DB, error)
const readHeaderTimeout = 10 * time.Second
// DefaultDBProvider returns a database using the DBBackend and DBDir
// specified in the ctx.Config.
func DefaultDBProvider(ctx *DBContext) (dbm.DB, error) {
dbType := dbm.BackendType(ctx.Config.DBBackend)
return dbm.NewDB(ctx.ID, dbType, ctx.Config.DBDir())
}
// 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(config *cfg.Config) GenesisDocProvider {
return func() (*types.GenesisDoc, error) {
return types.GenesisDocFromFile(config.GenesisFile())
}
}
// Provider takes a config and a logger and returns a ready to go Node.
type Provider func(*cfg.Config, log.Logger) (*Node, error)
// DefaultNewNode returns a CometBFT node with default settings for the
// PrivValidator, ClientCreator, GenesisDoc, and DBProvider.
// It implements NodeProvider.
func DefaultNewNode(config *cfg.Config, logger log.Logger) (*Node, error) {
nodeKey, err := p2p.LoadOrGenNodeKey(config.NodeKeyFile())
if err != nil {
return nil, fmt.Errorf("failed to load or gen node key %s: %w", config.NodeKeyFile(), err)
}
return NewNode(config,
privval.LoadOrGenFilePV(config.PrivValidatorKeyFile(), config.PrivValidatorStateFile()),
nodeKey,
proxy.DefaultClientCreator(config.ProxyApp, config.ABCI, config.DBDir()),
DefaultGenesisDocProviderFunc(config),
DefaultDBProvider,
DefaultMetricsProvider(config.Instrumentation),
logger,
)
}
// MetricsProvider returns a consensus, p2p and mempool Metrics.
type MetricsProvider func(chainID, softwareVersion string) (*cs.Metrics, *p2p.Metrics, *mempl.Metrics, *sm.Metrics)
// DefaultMetricsProvider returns Metrics build using Prometheus client library
// if Prometheus is enabled. Otherwise, it returns no-op Metrics.
func DefaultMetricsProvider(config *cfg.InstrumentationConfig) MetricsProvider {
return func(chainID, softwareVersion string) (*cs.Metrics, *p2p.Metrics, *mempl.Metrics, *sm.Metrics) {
if config.Prometheus {
return cs.PrometheusMetrics(config.Namespace, "chain_id", chainID, "version", softwareVersion),
p2p.PrometheusMetrics(config.Namespace, "chain_id", chainID, "version", softwareVersion),
mempl.PrometheusMetrics(config.Namespace, "chain_id", chainID, "version", softwareVersion),
sm.PrometheusMetrics(config.Namespace, "chain_id", chainID, "version", softwareVersion)
}
return cs.NopMetrics(), p2p.NopMetrics(), mempl.NopMetrics(), sm.NopMetrics()
}
}
// Option sets a parameter for the node.
type Option func(*Node)
// Temporary interface for switching to fast sync, we should get rid of v0 and v1 reactors.
// See: https://github.com/cometbft/cometbft/issues/4595
type fastSyncReactor interface {
SwitchToFastSync(sm.State) error
}
// CustomReactors allows you to add custom reactors (name -> p2p.Reactor) to
// the node's Switch.
//
// WARNING: using any name from the below list of the existing reactors will
// result in replacing it with the custom one.
//
// - MEMPOOL
// - BLOCKCHAIN
// - CONSENSUS
// - EVIDENCE
// - PEX
// - STATESYNC
func CustomReactors(reactors map[string]p2p.Reactor) Option {
return func(n *Node) {
for name, reactor := range reactors {
if existingReactor := n.sw.Reactor(name); existingReactor != nil {
n.sw.Logger.Info("Replacing existing reactor with a custom one",
"name", name, "existing", existingReactor, "custom", reactor)
n.sw.RemoveReactor(name, existingReactor)
}
n.sw.AddReactor(name, reactor)
// register the new channels to the nodeInfo
// NOTE: This is a bit messy now with the type casting but is
// cleaned up in the following version when NodeInfo is changed from
// and interface to a concrete type
if ni, ok := n.nodeInfo.(p2p.DefaultNodeInfo); ok {
for _, chDesc := range reactor.GetChannels() {
if !ni.HasChannel(chDesc.ID) {
ni.Channels = append(ni.Channels, chDesc.ID)
n.transport.AddChannel(chDesc.ID)
}
}
n.nodeInfo = ni
} else {
n.Logger.Error("Node info is not of type DefaultNodeInfo. Custom reactor channels can not be added.")
}
}
}
}
// StateProvider overrides the state provider used by state sync to retrieve trusted app hashes and
// build a State object for bootstrapping the node.
// WARNING: this interface is considered unstable and subject to change.
func StateProvider(stateProvider statesync.StateProvider) Option {
return func(n *Node) {
n.stateSyncProvider = stateProvider
}
}
//------------------------------------------------------------------------------
// Node is the highest level interface to a full CometBFT node.
// It includes all configuration information and running services.
type Node struct {
service.BaseService
// config
config *cfg.Config
genesisDoc *types.GenesisDoc // initial validator set
privValidator types.PrivValidator // local node's validator key
// network
transport *p2p.MultiplexTransport
sw *p2p.Switch // p2p connections
addrBook pex.AddrBook // known peers
nodeInfo p2p.NodeInfo
nodeKey *p2p.NodeKey // our node privkey
isListening bool
// services
eventBus *types.EventBus // pub/sub for services
stateStore sm.Store
blockStore *store.BlockStore // store the blockchain to disk
bcReactor p2p.Reactor // for fast-syncing
mempoolReactor p2p.Reactor // for gossipping transactions
mempool mempl.Mempool
stateSync bool // whether the node should state sync on startup
stateSyncReactor *statesync.Reactor // for hosting and restoring state sync snapshots
stateSyncProvider statesync.StateProvider // provides state data for bootstrapping a node
stateSyncGenesis sm.State // provides the genesis state for state sync
consensusState *cs.State // latest consensus state
consensusReactor *cs.Reactor // for participating in the consensus
pexReactor *pex.Reactor // for exchanging peer addresses
evidencePool *evidence.Pool // tracking evidence
proxyApp proxy.AppConns // connection to the application
rpcListeners []net.Listener // rpc servers
txIndexer txindex.TxIndexer
blockIndexer indexer.BlockIndexer
indexerService *txindex.IndexerService
prometheusSrv *http.Server
influxDBClient *trace.Client
pyroscopeProfiler *pyroscope.Profiler
pyroscopeTracer *sdktrace.TracerProvider
}
func initDBs(config *cfg.Config, dbProvider DBProvider) (blockStore *store.BlockStore, stateDB dbm.DB, err error) {
var blockStoreDB dbm.DB
blockStoreDB, err = dbProvider(&DBContext{"blockstore", config})
if err != nil {
return
}
blockStore = store.NewBlockStore(blockStoreDB)
stateDB, err = dbProvider(&DBContext{"state", config})
if err != nil {
return
}
return
}
func createAndStartProxyAppConns(clientCreator proxy.ClientCreator, logger log.Logger) (proxy.AppConns, error) {
proxyApp := proxy.NewAppConns(clientCreator)
proxyApp.SetLogger(logger.With("module", "proxy"))
if err := proxyApp.Start(); err != nil {
return nil, fmt.Errorf("error starting proxy app connections: %v", err)
}
return proxyApp, nil
}
func createAndStartEventBus(logger log.Logger) (*types.EventBus, error) {
eventBus := types.NewEventBus()
eventBus.SetLogger(logger.With("module", "events"))
if err := eventBus.Start(); err != nil {
return nil, err
}
return eventBus, nil
}
func createAndStartIndexerService(
config *cfg.Config,
chainID string,
dbProvider DBProvider,
eventBus *types.EventBus,
logger log.Logger,
) (*txindex.IndexerService, txindex.TxIndexer, indexer.BlockIndexer, error) {
var (
txIndexer txindex.TxIndexer
blockIndexer indexer.BlockIndexer
)
switch config.TxIndex.Indexer {
case "kv":
store, err := dbProvider(&DBContext{"tx_index", config})
if err != nil {
return nil, nil, nil, err
}
txIndexer = kv.NewTxIndex(store)
blockIndexer = blockidxkv.New(dbm.NewPrefixDB(store, []byte("block_events")))
case "psql":
if config.TxIndex.PsqlConn == "" {
return nil, nil, nil, errors.New(`no psql-conn is set for the "psql" indexer`)
}
es, err := psql.NewEventSink(config.TxIndex.PsqlConn, chainID)
if err != nil {
return nil, nil, nil, fmt.Errorf("creating psql indexer: %w", err)
}
txIndexer = es.TxIndexer()
blockIndexer = es.BlockIndexer()
default:
txIndexer = &null.TxIndex{}
blockIndexer = &blockidxnull.BlockerIndexer{}
}
indexerService := txindex.NewIndexerService(txIndexer, blockIndexer, eventBus, false)
indexerService.SetLogger(logger.With("module", "txindex"))
if err := indexerService.Start(); err != nil {
return nil, nil, nil, err
}
return indexerService, txIndexer, blockIndexer, nil
}
func doHandshake(
stateStore sm.Store,
state sm.State,
blockStore sm.BlockStore,
genDoc *types.GenesisDoc,
eventBus types.BlockEventPublisher,
proxyApp proxy.AppConns,
consensusLogger log.Logger,
) (string, error) {
handshaker := cs.NewHandshaker(stateStore, state, blockStore, genDoc)
handshaker.SetLogger(consensusLogger)
handshaker.SetEventBus(eventBus)
return handshaker.Handshake(proxyApp)
}
func logNodeStartupInfo(state sm.State, pubKey crypto.PubKey, logger, consensusLogger log.Logger) {
// Log the version info.
logger.Info("Version info",
"cmtbft_version", version.TMCoreSemVer,
"abci", version.ABCISemVer,
"block", version.BlockProtocol,
"p2p", version.P2PProtocol,
"commit_hash", version.TMGitCommitHash,
)
// If the state and software differ in block version, at least log it.
if state.Version.Consensus.Block != version.BlockProtocol {
logger.Info("Software and state have different block protocols",
"software", version.BlockProtocol,
"state", state.Version.Consensus.Block,
)
}
addr := pubKey.Address()
// Log whether this node is a validator or an observer
if state.Validators.HasAddress(addr) {
consensusLogger.Info("This node is a validator", "addr", addr, "pubKey", pubKey)
} else {
consensusLogger.Info("This node is not a validator", "addr", addr, "pubKey", pubKey)
}
}
func onlyValidatorIsUs(state sm.State, pubKey crypto.PubKey) bool {
if state.Validators.Size() > 1 {
return false
}
addr, _ := state.Validators.GetByIndex(0)
return bytes.Equal(pubKey.Address(), addr)
}
func createMempoolAndMempoolReactor(
config *cfg.Config,
proxyApp proxy.AppConns,
state sm.State,
memplMetrics *mempl.Metrics,
logger log.Logger,
traceClient *trace.Client,
) (mempl.Mempool, p2p.Reactor) {
switch config.Mempool.Version {
case cfg.MempoolV2:
mp := mempoolv2.NewTxPool(
logger,
config.Mempool,
proxyApp.Mempool(),
state.LastBlockHeight,
mempoolv2.WithMetrics(memplMetrics),
mempoolv2.WithPreCheck(sm.TxPreCheck(state)),
mempoolv2.WithPostCheck(sm.TxPostCheck(state)),
)
reactor, err := mempoolv2.NewReactor(
mp,
&mempoolv2.ReactorOptions{
ListenOnly: !config.Mempool.Broadcast,
MaxTxSize: config.Mempool.MaxTxBytes,
TraceClient: traceClient,
MaxGossipDelay: config.Mempool.MaxGossipDelay,
},
)
if err != nil {
// TODO: find a more polite way of handling this error
panic(err)
}
if config.Consensus.WaitForTxs() {
mp.EnableTxsAvailable()
}
reactor.SetLogger(logger)
return mp, reactor
case cfg.MempoolV1:
mp := mempoolv1.NewTxMempool(
logger,
config.Mempool,
proxyApp.Mempool(),
state.LastBlockHeight,
mempoolv1.WithMetrics(memplMetrics),
mempoolv1.WithPreCheck(sm.TxPreCheck(state)),
mempoolv1.WithPostCheck(sm.TxPostCheck(state)),
mempoolv1.WithTraceClient(traceClient),
)
reactor := mempoolv1.NewReactor(
config.Mempool,
mp,
traceClient,
)
if config.Consensus.WaitForTxs() {
mp.EnableTxsAvailable()
}
reactor.SetLogger(logger)
return mp, reactor
case cfg.MempoolV0:
mp := mempoolv0.NewCListMempool(
config.Mempool,
proxyApp.Mempool(),
state.LastBlockHeight,
mempoolv0.WithMetrics(memplMetrics),
mempoolv0.WithPreCheck(sm.TxPreCheck(state)),
mempoolv0.WithPostCheck(sm.TxPostCheck(state)),
)
mp.SetLogger(logger)
reactor := mempoolv0.NewReactor(
config.Mempool,
mp,
)
if config.Consensus.WaitForTxs() {
mp.EnableTxsAvailable()
}
reactor.SetLogger(logger)
return mp, reactor
default:
return nil, nil
}
}
func createEvidenceReactor(config *cfg.Config, dbProvider DBProvider,
stateDB dbm.DB, blockStore *store.BlockStore, logger log.Logger,
) (*evidence.Reactor, *evidence.Pool, error) {
evidenceDB, err := dbProvider(&DBContext{"evidence", config})
if err != nil {
return nil, nil, err
}
evidenceLogger := logger.With("module", "evidence")
evidencePool, err := evidence.NewPool(evidenceDB, sm.NewStore(stateDB, sm.StoreOptions{
DiscardABCIResponses: config.Storage.DiscardABCIResponses,
}), blockStore)
if err != nil {
return nil, nil, err
}
evidenceReactor := evidence.NewReactor(evidencePool)
evidenceReactor.SetLogger(evidenceLogger)
return evidenceReactor, evidencePool, nil
}
func createBlockchainReactor(config *cfg.Config,
state sm.State,
blockExec *sm.BlockExecutor,
blockStore *store.BlockStore,
fastSync bool,
logger log.Logger,
) (bcReactor p2p.Reactor, err error) {
switch config.FastSync.Version {
case "v0":
bcReactor = bcv0.NewBlockchainReactor(state.Copy(), blockExec, blockStore, fastSync)
case "v1":
bcReactor = bcv1.NewBlockchainReactor(state.Copy(), blockExec, blockStore, fastSync)
case "v2":
bcReactor = bcv2.NewBlockchainReactor(state.Copy(), blockExec, blockStore, fastSync)
default:
return nil, fmt.Errorf("unknown fastsync version %s", config.FastSync.Version)
}
bcReactor.SetLogger(logger.With("module", "blockchain"))
return bcReactor, nil
}
func createConsensusReactor(config *cfg.Config,
state sm.State,
blockExec *sm.BlockExecutor,
blockStore sm.BlockStore,
mempool mempl.Mempool,
evidencePool *evidence.Pool,
privValidator types.PrivValidator,
csMetrics *cs.Metrics,
waitSync bool,
eventBus *types.EventBus,
consensusLogger log.Logger,
traceClient *trace.Client,
) (*cs.Reactor, *cs.State) {
consensusState := cs.NewState(
config.Consensus,
state.Copy(),
blockExec,
blockStore,
mempool,
evidencePool,
cs.StateMetrics(csMetrics),
cs.SetTraceClient(traceClient),
)
consensusState.SetLogger(consensusLogger)
if privValidator != nil {
consensusState.SetPrivValidator(privValidator)
}
consensusReactor := cs.NewReactor(
consensusState,
waitSync,
cs.ReactorMetrics(csMetrics),
cs.ReactorTracing(traceClient),
)
consensusReactor.SetLogger(consensusLogger)
// services which will be publishing and/or subscribing for messages (events)
// consensusReactor will set it on consensusState and blockExecutor
consensusReactor.SetEventBus(eventBus)
return consensusReactor, consensusState
}
func createTransport(
config *cfg.Config,
nodeInfo p2p.NodeInfo,
nodeKey *p2p.NodeKey,
proxyApp proxy.AppConns,
) (
*p2p.MultiplexTransport,
[]p2p.PeerFilterFunc,
) {
var (
mConnConfig = p2p.MConnConfig(config.P2P)
transport = p2p.NewMultiplexTransport(nodeInfo, *nodeKey, mConnConfig)
connFilters = []p2p.ConnFilterFunc{}
peerFilters = []p2p.PeerFilterFunc{}
)
if !config.P2P.AllowDuplicateIP {
connFilters = append(connFilters, p2p.ConnDuplicateIPFilter())
}
// Filter peers by addr or pubkey with an ABCI query.
// If the query return code is OK, add peer.
if config.FilterPeers {
connFilters = append(
connFilters,
// ABCI query for address filtering.
func(_ p2p.ConnSet, c net.Conn, _ []net.IP) error {
res, err := proxyApp.Query().QuerySync(abci.RequestQuery{
Path: fmt.Sprintf("/p2p/filter/addr/%s", c.RemoteAddr().String()),
})
if err != nil {
return err
}
if res.IsErr() {
return fmt.Errorf("error querying abci app: %v", res)
}
return nil
},
)
peerFilters = append(
peerFilters,
// ABCI query for ID filtering.
func(_ p2p.IPeerSet, p p2p.Peer) error {
res, err := proxyApp.Query().QuerySync(abci.RequestQuery{
Path: fmt.Sprintf("/p2p/filter/id/%s", p.ID()),
})
if err != nil {
return err
}
if res.IsErr() {
return fmt.Errorf("error querying abci app: %v", res)
}
return nil
},
)
}
p2p.MultiplexTransportConnFilters(connFilters...)(transport)
// Limit the number of incoming connections.
max := config.P2P.MaxNumInboundPeers + len(splitAndTrimEmpty(config.P2P.UnconditionalPeerIDs, ",", " "))
p2p.MultiplexTransportMaxIncomingConnections(max)(transport)
return transport, peerFilters
}
func createSwitch(config *cfg.Config,
transport p2p.Transport,
p2pMetrics *p2p.Metrics,
peerFilters []p2p.PeerFilterFunc,
mempoolReactor p2p.Reactor,
bcReactor p2p.Reactor,
stateSyncReactor *statesync.Reactor,
consensusReactor *cs.Reactor,
evidenceReactor *evidence.Reactor,
nodeInfo p2p.NodeInfo,
nodeKey *p2p.NodeKey,
p2pLogger log.Logger,
) *p2p.Switch {
sw := p2p.NewSwitch(
config.P2P,
transport,
p2p.WithMetrics(p2pMetrics),
p2p.SwitchPeerFilters(peerFilters...),
)
sw.SetLogger(p2pLogger)
sw.AddReactor("MEMPOOL", mempoolReactor)
sw.AddReactor("BLOCKCHAIN", bcReactor)
sw.AddReactor("CONSENSUS", consensusReactor)
sw.AddReactor("EVIDENCE", evidenceReactor)
sw.AddReactor("STATESYNC", stateSyncReactor)
sw.SetNodeInfo(nodeInfo)
sw.SetNodeKey(nodeKey)
p2pLogger.Info("P2P Node ID", "ID", nodeKey.ID(), "file", config.NodeKeyFile())
return sw
}
func createAddrBookAndSetOnSwitch(config *cfg.Config, sw *p2p.Switch,
p2pLogger log.Logger, nodeKey *p2p.NodeKey,
) (pex.AddrBook, error) {
addrBook := pex.NewAddrBook(config.P2P.AddrBookFile(), config.P2P.AddrBookStrict)
addrBook.SetLogger(p2pLogger.With("book", config.P2P.AddrBookFile()))
// Add ourselves to addrbook to prevent dialing ourselves
if config.P2P.ExternalAddress != "" {
addr, err := p2p.NewNetAddressString(p2p.IDAddressString(nodeKey.ID(), config.P2P.ExternalAddress))
if err != nil {
return nil, fmt.Errorf("p2p.external_address is incorrect: %w", err)
}
addrBook.AddOurAddress(addr)
}
if config.P2P.ListenAddress != "" {
addr, err := p2p.NewNetAddressString(p2p.IDAddressString(nodeKey.ID(), config.P2P.ListenAddress))
if err != nil {
return nil, fmt.Errorf("p2p.laddr is incorrect: %w", err)
}
addrBook.AddOurAddress(addr)
}
sw.SetAddrBook(addrBook)
return addrBook, nil
}
func createPEXReactorAndAddToSwitch(addrBook pex.AddrBook, config *cfg.Config,
sw *p2p.Switch, logger log.Logger,
) *pex.Reactor {
// TODO persistent peers ? so we can have their DNS addrs saved
pexReactor := pex.NewReactor(addrBook,
&pex.ReactorConfig{
Seeds: splitAndTrimEmpty(config.P2P.Seeds, ",", " "),
SeedMode: config.P2P.SeedMode,
// See consensus/reactor.go: blocksToContributeToBecomeGoodPeer 10000
// blocks assuming 10s blocks ~ 28 hours.
// TODO (melekes): make it dynamic based on the actual block latencies
// from the live network.
// https://github.com/cometbft/cometbft/issues/3523
SeedDisconnectWaitPeriod: 28 * time.Hour,
PersistentPeersMaxDialPeriod: config.P2P.PersistentPeersMaxDialPeriod,
})
pexReactor.SetLogger(logger.With("module", "pex"))
sw.AddReactor("PEX", pexReactor)
return pexReactor
}
// startStateSync starts an asynchronous state sync process, then switches to fast sync mode.
func startStateSync(ssR *statesync.Reactor, bcR fastSyncReactor, conR *cs.Reactor,
stateProvider statesync.StateProvider, config *cfg.StateSyncConfig, fastSync bool,
stateStore sm.Store, blockStore *store.BlockStore, state sm.State,
) error {
ssR.Logger.Info("Starting state sync")
if stateProvider == nil {
var err error
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
stateProvider, err = statesync.NewLightClientStateProvider(
ctx,
state.ChainID, state.Version, state.InitialHeight,
config.RPCServers, light.TrustOptions{
Period: config.TrustPeriod,
Height: config.TrustHeight,
Hash: config.TrustHashBytes(),
}, ssR.Logger.With("module", "light"))
if err != nil {
return fmt.Errorf("failed to set up light client state provider: %w", err)
}
}
go func() {
state, commit, err := ssR.Sync(stateProvider, config.DiscoveryTime)
if err != nil {
ssR.Logger.Error("State sync failed", "err", err)
return
}
err = stateStore.Bootstrap(state)
if err != nil {
ssR.Logger.Error("Failed to bootstrap node with new state", "err", err)
return
}
err = blockStore.SaveSeenCommit(state.LastBlockHeight, commit)
if err != nil {
ssR.Logger.Error("Failed to store last seen commit", "err", err)
return
}
if fastSync {
// FIXME Very ugly to have these metrics bleed through here.
conR.Metrics.StateSyncing.Set(0)
conR.Metrics.FastSyncing.Set(1)
err = bcR.SwitchToFastSync(state)
if err != nil {
ssR.Logger.Error("Failed to switch to fast sync", "err", err)
return
}
} else {
conR.SwitchToConsensus(state, true)
}
}()
return nil
}
// NewNode returns a new, ready to go, CometBFT Node.
func NewNode(config *cfg.Config,
privValidator types.PrivValidator,
nodeKey *p2p.NodeKey,
clientCreator proxy.ClientCreator,
genesisDocProvider GenesisDocProvider,
dbProvider DBProvider,
metricsProvider MetricsProvider,
logger log.Logger,
options ...Option,
) (*Node, error) {
if err := config.ValidateBasic(); err != nil {
return nil, fmt.Errorf("invalid config: %w", err)
}
blockStore, stateDB, err := initDBs(config, dbProvider)
if err != nil {
return nil, err
}
stateStore := sm.NewStore(stateDB, sm.StoreOptions{
DiscardABCIResponses: config.Storage.DiscardABCIResponses,
})
state, genDoc, err := LoadStateFromDBOrGenesisDocProvider(stateDB, genesisDocProvider)
if err != nil {
return nil, err
}
// Create the proxyApp and establish connections to the ABCI app (consensus, mempool, query).
proxyApp, err := createAndStartProxyAppConns(clientCreator, logger)
if err != nil {
return nil, 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, err := createAndStartEventBus(logger)
if err != nil {
return nil, err
}
indexerService, txIndexer, blockIndexer, err := createAndStartIndexerService(config,
genDoc.ChainID, dbProvider, eventBus, logger)
if err != nil {
return nil, err
}
// If an address is provided, listen on the socket for a connection from an
// external signing process.
if config.PrivValidatorListenAddr != "" {
// FIXME: we should start services inside OnStart
privValidator, err = createAndStartPrivValidatorSocketClient(config.PrivValidatorListenAddr, genDoc.ChainID, logger)
if err != nil {
return nil, fmt.Errorf("error with private validator socket client: %w", err)
}
}
pubKey, err := privValidator.GetPubKey()
if err != nil {
return nil, fmt.Errorf("can't get pubkey: %w", err)
}
// Determine whether we should attempt state sync.
stateSync := config.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 CometBFT with the app.
consensusLogger := logger.With("module", "consensus")
var softwareVersion string
if !stateSync {
softwareVersion, err = doHandshake(stateStore, state, blockStore, genDoc, eventBus, proxyApp, consensusLogger)
if err != nil {
return nil, err
}
// 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, fmt.Errorf("cannot load state: %w", err)
}
} else {
resp, err := proxyApp.Query().InfoSync(proxy.RequestInfo)
if err != nil {
return nil, fmt.Errorf("error during info call: %w", err)
}
softwareVersion = resp.Version
}
// Determine whether we should do fast sync. This must happen after the handshake, since the
// app may modify the validator set, specifying ourself as the only validator.
fastSync := config.FastSyncMode && !onlyValidatorIsUs(state, pubKey)
logNodeStartupInfo(state, pubKey, logger, consensusLogger)
csMetrics, p2pMetrics, memplMetrics, smMetrics := metricsProvider(genDoc.ChainID, softwareVersion)
// create an optional influxdb client to send arbitrary data to a remote
// influxdb server. This is used to collect trace data from many different nodes
// in a network.
influxdbClient, err := trace.NewClient(
config.Instrumentation,
logger,
genDoc.ChainID,
string(nodeKey.ID()),
)
if err != nil {
return nil, err
}
// Make MempoolReactor
mempool, mempoolReactor := createMempoolAndMempoolReactor(config, proxyApp, state, memplMetrics, logger, influxdbClient)
// Make Evidence Reactor
evidenceReactor, evidencePool, err := createEvidenceReactor(config, dbProvider, stateDB, blockStore, logger)
if err != nil {
return nil, err
}
// make block executor for consensus and blockchain reactors to execute blocks
blockExec := sm.NewBlockExecutor(
stateStore,
logger.With("module", "state"),
proxyApp.Consensus(),
mempool,
evidencePool,
sm.BlockExecutorWithMetrics(smMetrics),
)
// Make BlockchainReactor. Don't start fast sync if we're doing a state sync first.
bcReactor, err := createBlockchainReactor(config, state, blockExec, blockStore, fastSync && !stateSync, logger)
if err != nil {
return nil, fmt.Errorf("could not create blockchain reactor: %w", err)
}
// Make ConsensusReactor. Don't enable fully if doing a state sync and/or fast sync first.
// FIXME We need to update metrics here, since other reactors don't have access to them.
if stateSync {
csMetrics.StateSyncing.Set(1)
} else if fastSync {
csMetrics.FastSyncing.Set(1)
}
consensusReactor, consensusState := createConsensusReactor(
config, state, blockExec, blockStore, mempool, evidencePool,
privValidator, csMetrics, stateSync || fastSync, eventBus, consensusLogger, influxdbClient,
)
// Set up state sync reactor, and schedule a sync if requested.
// FIXME The way we do phased startups (e.g. replay -> fast sync -> consensus) is very messy,
// we should clean this whole thing up. See:
// https://github.com/cometbft/cometbft/issues/4644
stateSyncReactor := statesync.NewReactor(
*config.StateSync,
proxyApp.Snapshot(),
proxyApp.Query(),
config.StateSync.TempDir,
)
stateSyncReactor.SetLogger(logger.With("module", "statesync"))
nodeInfo, err := makeNodeInfo(config, nodeKey, txIndexer, genDoc, state, softwareVersion)
if err != nil {
return nil, err
}
// Setup Transport.
transport, peerFilters := createTransport(config, nodeInfo, nodeKey, proxyApp)
// Setup Switch.
p2pLogger := logger.With("module", "p2p")
sw := createSwitch(
config, transport, p2pMetrics, peerFilters, mempoolReactor, bcReactor,
stateSyncReactor, consensusReactor, evidenceReactor, nodeInfo, nodeKey, p2pLogger,
)
err = sw.AddPersistentPeers(splitAndTrimEmpty(config.P2P.PersistentPeers, ",", " "))
if err != nil {
return nil, fmt.Errorf("could not add peers from persistent_peers field: %w", err)
}
err = sw.AddUnconditionalPeerIDs(splitAndTrimEmpty(config.P2P.UnconditionalPeerIDs, ",", " "))
if err != nil {
return nil, fmt.Errorf("could not add peer ids from unconditional_peer_ids field: %w", err)
}
addrBook, err := createAddrBookAndSetOnSwitch(config, sw, p2pLogger, nodeKey)
if err != nil {
return nil, fmt.Errorf("could not create addrbook: %w", err)
}
// Optionally, start the pex reactor
//
// TODO:
//
// We need to set Seeds and PersistentPeers on the switch,
// since it needs to be able to use these (and their DNS names)
// even if the PEX is off. We can include the DNS name in the NetAddress,
// but it would still be nice to have a clear list of the current "PersistentPeers"
// somewhere that we can return with net_info.
//
// If PEX is on, it should handle dialing the seeds. Otherwise the switch does it.
// Note we currently use the addrBook regardless at least for AddOurAddress
var pexReactor *pex.Reactor
if config.P2P.PexReactor {
pexReactor = createPEXReactorAndAddToSwitch(addrBook, config, sw, logger)
}
if config.RPC.PprofListenAddress != "" {
go func() {
logger.Info("Starting pprof server", "laddr", config.RPC.PprofListenAddress)
//nolint:gosec,nolintlint // G114: Use of net/http serve function that has no support for setting timeouts
logger.Error("pprof server error", "err", http.ListenAndServe(config.RPC.PprofListenAddress, nil))
}()
}
node := &Node{
config: config,
genesisDoc: genDoc,
privValidator: privValidator,
transport: transport,
sw: sw,
addrBook: addrBook,
nodeInfo: nodeInfo,
nodeKey: nodeKey,
stateStore: stateStore,
blockStore: blockStore,
bcReactor: bcReactor,
mempoolReactor: mempoolReactor,
mempool: mempool,
consensusState: consensusState,
consensusReactor: consensusReactor,
stateSyncReactor: stateSyncReactor,
stateSync: stateSync,
stateSyncGenesis: state, // Shouldn't be necessary, but need a way to pass the genesis state
pexReactor: pexReactor,
evidencePool: evidencePool,
proxyApp: proxyApp,
txIndexer: txIndexer,
indexerService: indexerService,