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149 lines
4.7 KiB
149 lines
4.7 KiB
package inspect
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import (
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"context"
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"errors"
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"fmt"
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"net"
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"github.com/tendermint/tendermint/config"
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"github.com/tendermint/tendermint/inspect/rpc"
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"github.com/tendermint/tendermint/libs/log"
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tmstrings "github.com/tendermint/tendermint/libs/strings"
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rpccore "github.com/tendermint/tendermint/rpc/core"
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"github.com/tendermint/tendermint/state"
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"github.com/tendermint/tendermint/state/indexer"
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"github.com/tendermint/tendermint/state/indexer/sink"
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"github.com/tendermint/tendermint/store"
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"github.com/tendermint/tendermint/types"
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"golang.org/x/sync/errgroup"
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)
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// Inspector manages an RPC service that exports methods to debug a failed node.
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// After a node shuts down due to a consensus failure, it will no longer start
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// up its state cannot easily be inspected. An Inspector value provides a similar interface
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// to the node, using the underlying Tendermint data stores, without bringing up
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// any other components. A caller can query the Inspector service to inspect the
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// persisted state and debug the failure.
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type Inspector struct {
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routes rpccore.RoutesMap
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config *config.RPCConfig
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indexerService *indexer.Service
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eventBus *types.EventBus
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logger log.Logger
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}
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// New returns an Inspector that serves RPC on the specified BlockStore and StateStore.
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// The Inspector type does not modify the state or block stores.
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// The sinks are used to enable block and transaction querying via the RPC server.
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// The caller is responsible for starting and stopping the Inspector service.
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///
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//nolint:lll
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func New(cfg *config.RPCConfig, bs state.BlockStore, ss state.Store, es []indexer.EventSink, logger log.Logger) *Inspector {
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routes := rpc.Routes(*cfg, ss, bs, es, logger)
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eb := types.NewEventBus()
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eb.SetLogger(logger.With("module", "events"))
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is := indexer.NewIndexerService(es, eb)
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is.SetLogger(logger.With("module", "txindex"))
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return &Inspector{
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routes: routes,
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config: cfg,
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logger: logger,
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eventBus: eb,
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indexerService: is,
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}
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}
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// NewFromConfig constructs an Inspector using the values defined in the passed in config.
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func NewFromConfig(cfg *config.Config) (*Inspector, error) {
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bsDB, err := config.DefaultDBProvider(&config.DBContext{ID: "blockstore", Config: cfg})
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if err != nil {
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return nil, err
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}
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bs := store.NewBlockStore(bsDB)
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sDB, err := config.DefaultDBProvider(&config.DBContext{ID: "state", Config: cfg})
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if err != nil {
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return nil, err
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}
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genDoc, err := types.GenesisDocFromFile(cfg.GenesisFile())
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if err != nil {
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return nil, err
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}
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sinks, err := sink.EventSinksFromConfig(cfg, config.DefaultDBProvider, genDoc.ChainID)
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if err != nil {
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return nil, err
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}
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logger := log.MustNewDefaultLogger(log.LogFormatPlain, log.LogLevelInfo, false)
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ss := state.NewStore(sDB)
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return New(cfg.RPC, bs, ss, sinks, logger), nil
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}
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// Run starts the Inspector servers and blocks until the servers shut down. The passed
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// in context is used to control the lifecycle of the servers.
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func (ins *Inspector) Run(ctx context.Context) error {
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err := ins.eventBus.Start()
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if err != nil {
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return fmt.Errorf("error starting event bus: %s", err)
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}
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defer func() {
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err := ins.eventBus.Stop()
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if err != nil {
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ins.logger.Error("event bus stopped with error", "err", err)
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}
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}()
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err = ins.indexerService.Start()
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if err != nil {
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return fmt.Errorf("error starting indexer service: %s", err)
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}
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defer func() {
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err := ins.indexerService.Stop()
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if err != nil {
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ins.logger.Error("indexer service stopped with error", "err", err)
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}
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}()
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return startRPCServers(ctx, ins.config, ins.logger, ins.routes)
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}
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func startRPCServers(ctx context.Context, cfg *config.RPCConfig, logger log.Logger, routes rpccore.RoutesMap) error {
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g, tctx := errgroup.WithContext(ctx)
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listenAddrs := tmstrings.SplitAndTrimEmpty(cfg.ListenAddress, ",", " ")
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rh := rpc.Handler(cfg, routes, logger)
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for _, listenerAddr := range listenAddrs {
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server := rpc.Server{
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Logger: logger,
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Config: cfg,
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Handler: rh,
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Addr: listenerAddr,
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}
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if cfg.IsTLSEnabled() {
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keyFile := cfg.KeyFile()
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certFile := cfg.CertFile()
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listenerAddr := listenerAddr
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g.Go(func() error {
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logger.Info("RPC HTTPS server starting", "address", listenerAddr,
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"certfile", certFile, "keyfile", keyFile)
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err := server.ListenAndServeTLS(tctx, certFile, keyFile)
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if !errors.Is(err, net.ErrClosed) {
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return err
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}
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logger.Info("RPC HTTPS server stopped", "address", listenerAddr)
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return nil
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})
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} else {
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listenerAddr := listenerAddr
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g.Go(func() error {
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logger.Info("RPC HTTP server starting", "address", listenerAddr)
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err := server.ListenAndServe(tctx)
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if !errors.Is(err, net.ErrClosed) {
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return err
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}
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logger.Info("RPC HTTP server stopped", "address", listenerAddr)
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return nil
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})
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}
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}
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return g.Wait()
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}
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