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tendermint/config/config.go

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package config
import (
"encoding/hex"
"errors"
"fmt"
"net/http"
"os"
"path/filepath"
"time"
)
const (
// FuzzModeDrop is a mode in which we randomly drop reads/writes, connections or sleep
FuzzModeDrop = iota
// FuzzModeDelay is a mode in which we randomly sleep
FuzzModeDelay
// LogFormatPlain is a format for colored text
LogFormatPlain = "plain"
// LogFormatJSON is a format for json output
LogFormatJSON = "json"
)
// NOTE: Most of the structs & relevant comments + the
// default configuration options were used to manually
// generate the config.toml. Please reflect any changes
// made here in the defaultConfigTemplate constant in
// config/toml.go
// NOTE: libs/cli must know to look in the config dir!
var (
DefaultTendermintDir = ".tendermint"
defaultConfigDir = "config"
defaultDataDir = "data"
defaultConfigFileName = "config.toml"
defaultGenesisJSONName = "genesis.json"
defaultPrivValKeyName = "priv_validator_key.json"
defaultPrivValStateName = "priv_validator_state.json"
defaultNodeKeyName = "node_key.json"
defaultAddrBookName = "addrbook.json"
defaultConfigFilePath = filepath.Join(defaultConfigDir, defaultConfigFileName)
defaultGenesisJSONPath = filepath.Join(defaultConfigDir, defaultGenesisJSONName)
defaultPrivValKeyPath = filepath.Join(defaultConfigDir, defaultPrivValKeyName)
defaultPrivValStatePath = filepath.Join(defaultDataDir, defaultPrivValStateName)
defaultNodeKeyPath = filepath.Join(defaultConfigDir, defaultNodeKeyName)
defaultAddrBookPath = filepath.Join(defaultConfigDir, defaultAddrBookName)
)
// Config defines the top level configuration for a Tendermint node
type Config struct {
// Top level options use an anonymous struct
BaseConfig `mapstructure:",squash"`
// Options for services
RPC *RPCConfig `mapstructure:"rpc"`
P2P *P2PConfig `mapstructure:"p2p"`
Mempool *MempoolConfig `mapstructure:"mempool"`
StateSync *StateSyncConfig `mapstructure:"statesync"`
FastSync *FastSyncConfig `mapstructure:"fastsync"`
Consensus *ConsensusConfig `mapstructure:"consensus"`
TxIndex *TxIndexConfig `mapstructure:"tx_index"`
Instrumentation *InstrumentationConfig `mapstructure:"instrumentation"`
}
// DefaultConfig returns a default configuration for a Tendermint node
func DefaultConfig() *Config {
return &Config{
BaseConfig: DefaultBaseConfig(),
RPC: DefaultRPCConfig(),
P2P: DefaultP2PConfig(),
Mempool: DefaultMempoolConfig(),
StateSync: DefaultStateSyncConfig(),
FastSync: DefaultFastSyncConfig(),
Consensus: DefaultConsensusConfig(),
TxIndex: DefaultTxIndexConfig(),
Instrumentation: DefaultInstrumentationConfig(),
}
}
// TestConfig returns a configuration that can be used for testing
func TestConfig() *Config {
return &Config{
BaseConfig: TestBaseConfig(),
RPC: TestRPCConfig(),
P2P: TestP2PConfig(),
Mempool: TestMempoolConfig(),
StateSync: TestStateSyncConfig(),
FastSync: TestFastSyncConfig(),
Consensus: TestConsensusConfig(),
TxIndex: TestTxIndexConfig(),
Instrumentation: TestInstrumentationConfig(),
}
}
// SetRoot sets the RootDir for all Config structs
func (cfg *Config) SetRoot(root string) *Config {
cfg.BaseConfig.RootDir = root
cfg.RPC.RootDir = root
cfg.P2P.RootDir = root
cfg.Mempool.RootDir = root
cfg.Consensus.RootDir = root
return cfg
}
// ValidateBasic performs basic validation (checking param bounds, etc.) and
// returns an error if any check fails.
func (cfg *Config) ValidateBasic() error {
if err := cfg.BaseConfig.ValidateBasic(); err != nil {
return err
}
if err := cfg.RPC.ValidateBasic(); err != nil {
return fmt.Errorf("error in [rpc] section: %w", err)
}
if err := cfg.P2P.ValidateBasic(); err != nil {
return fmt.Errorf("error in [p2p] section: %w", err)
}
if err := cfg.Mempool.ValidateBasic(); err != nil {
return fmt.Errorf("error in [mempool] section: %w", err)
}
if err := cfg.StateSync.ValidateBasic(); err != nil {
return fmt.Errorf("error in [statesync] section: %w", err)
}
if err := cfg.FastSync.ValidateBasic(); err != nil {
return fmt.Errorf("error in [fastsync] section: %w", err)
}
if err := cfg.Consensus.ValidateBasic(); err != nil {
return fmt.Errorf("error in [consensus] section: %w", err)
}
if err := cfg.Instrumentation.ValidateBasic(); err != nil {
return fmt.Errorf("error in [instrumentation] section: %w", err)
}
return nil
}
//-----------------------------------------------------------------------------
// BaseConfig
// BaseConfig defines the base configuration for a Tendermint node
type BaseConfig struct { //nolint: maligned
// chainID is unexposed and immutable but here for convenience
chainID string
// The root directory for all data.
// This should be set in viper so it can unmarshal into this struct
RootDir string `mapstructure:"home"`
// TCP or UNIX socket address of the ABCI application,
// or the name of an ABCI application compiled in with the Tendermint binary
ProxyApp string `mapstructure:"proxy_app"`
// A custom human readable name for this node
Moniker string `mapstructure:"moniker"`
// If this node is many blocks behind the tip of the chain, FastSync
// allows them to catchup quickly by downloading blocks in parallel
// and verifying their commits
FastSyncMode bool `mapstructure:"fast_sync"`
// Database backend: goleveldb | cleveldb | boltdb | rocksdb
// * goleveldb (github.com/syndtr/goleveldb - most popular implementation)
// - pure go
// - stable
// * cleveldb (uses levigo wrapper)
// - fast
// - requires gcc
// - use cleveldb build tag (go build -tags cleveldb)
// * boltdb (uses etcd's fork of bolt - github.com/etcd-io/bbolt)
// - EXPERIMENTAL
// - may be faster is some use-cases (random reads - indexer)
// - use boltdb build tag (go build -tags boltdb)
// * rocksdb (uses github.com/tecbot/gorocksdb)
// - EXPERIMENTAL
// - requires gcc
// - use rocksdb build tag (go build -tags rocksdb)
// * badgerdb (uses github.com/dgraph-io/badger)
// - EXPERIMENTAL
// - use badgerdb build tag (go build -tags badgerdb)
DBBackend string `mapstructure:"db_backend"`
// Database directory
DBPath string `mapstructure:"db_dir"`
// Output level for logging
LogLevel string `mapstructure:"log_level"`
// Output format: 'plain' (colored text) or 'json'
LogFormat string `mapstructure:"log_format"`
// Path to the JSON file containing the initial validator set and other meta data
Genesis string `mapstructure:"genesis_file"`
// Path to the JSON file containing the private key to use as a validator in the consensus protocol
PrivValidatorKey string `mapstructure:"priv_validator_key_file"`
// Path to the JSON file containing the last sign state of a validator
PrivValidatorState string `mapstructure:"priv_validator_state_file"`
// TCP or UNIX socket address for Tendermint to listen on for
// connections from an external PrivValidator process
PrivValidatorListenAddr string `mapstructure:"priv_validator_laddr"`
// A JSON file containing the private key to use for p2p authenticated encryption
NodeKey string `mapstructure:"node_key_file"`
// Mechanism to connect to the ABCI application: socket | grpc
ABCI string `mapstructure:"abci"`
// TCP or UNIX socket address for the profiling server to listen on
ProfListenAddress string `mapstructure:"prof_laddr"`
// If true, query the ABCI app on connecting to a new peer
// so the app can decide if we should keep the connection or not
FilterPeers bool `mapstructure:"filter_peers"` // false
}
// DefaultBaseConfig returns a default base configuration for a Tendermint node
func DefaultBaseConfig() BaseConfig {
return BaseConfig{
Genesis: defaultGenesisJSONPath,
PrivValidatorKey: defaultPrivValKeyPath,
PrivValidatorState: defaultPrivValStatePath,
NodeKey: defaultNodeKeyPath,
Moniker: defaultMoniker,
ProxyApp: "tcp://127.0.0.1:26658",
ABCI: "socket",
LogLevel: DefaultPackageLogLevels(),
LogFormat: LogFormatPlain,
ProfListenAddress: "",
FastSyncMode: true,
FilterPeers: false,
DBBackend: "goleveldb",
DBPath: "data",
}
}
// TestBaseConfig returns a base configuration for testing a Tendermint node
func TestBaseConfig() BaseConfig {
cfg := DefaultBaseConfig()
cfg.chainID = "tendermint_test"
cfg.ProxyApp = "kvstore"
cfg.FastSyncMode = false
cfg.DBBackend = "memdb"
return cfg
}
func (cfg BaseConfig) ChainID() string {
return cfg.chainID
}
// GenesisFile returns the full path to the genesis.json file
func (cfg BaseConfig) GenesisFile() string {
return rootify(cfg.Genesis, cfg.RootDir)
}
// PrivValidatorKeyFile returns the full path to the priv_validator_key.json file
func (cfg BaseConfig) PrivValidatorKeyFile() string {
return rootify(cfg.PrivValidatorKey, cfg.RootDir)
}
// PrivValidatorFile returns the full path to the priv_validator_state.json file
func (cfg BaseConfig) PrivValidatorStateFile() string {
return rootify(cfg.PrivValidatorState, cfg.RootDir)
}
// NodeKeyFile returns the full path to the node_key.json file
func (cfg BaseConfig) NodeKeyFile() string {
return rootify(cfg.NodeKey, cfg.RootDir)
}
// DBDir returns the full path to the database directory
func (cfg BaseConfig) DBDir() string {
return rootify(cfg.DBPath, cfg.RootDir)
}
// ValidateBasic performs basic validation (checking param bounds, etc.) and
// returns an error if any check fails.
func (cfg BaseConfig) ValidateBasic() error {
switch cfg.LogFormat {
case LogFormatPlain, LogFormatJSON:
default:
return errors.New("unknown log_format (must be 'plain' or 'json')")
}
return nil
}
// DefaultLogLevel returns a default log level of "error"
func DefaultLogLevel() string {
return "error"
}
// DefaultPackageLogLevels returns a default log level setting so all packages
// log at "error", while the `state` and `main` packages log at "info"
func DefaultPackageLogLevels() string {
return fmt.Sprintf("main:info,state:info,statesync:info,*:%s", DefaultLogLevel())
}
//-----------------------------------------------------------------------------
// RPCConfig
// RPCConfig defines the configuration options for the Tendermint RPC server
type RPCConfig struct {
RootDir string `mapstructure:"home"`
// TCP or UNIX socket address for the RPC server to listen on
ListenAddress string `mapstructure:"laddr"`
// A list of origins a cross-domain request can be executed from.
// If the special '*' value is present in the list, all origins will be allowed.
// An origin may contain a wildcard (*) to replace 0 or more characters (i.e.: http://*.domain.com).
// Only one wildcard can be used per origin.
CORSAllowedOrigins []string `mapstructure:"cors_allowed_origins"`
// A list of methods the client is allowed to use with cross-domain requests.
CORSAllowedMethods []string `mapstructure:"cors_allowed_methods"`
// A list of non simple headers the client is allowed to use with cross-domain requests.
CORSAllowedHeaders []string `mapstructure:"cors_allowed_headers"`
// TCP or UNIX socket address for the gRPC server to listen on
// NOTE: This server only supports /broadcast_tx_commit
GRPCListenAddress string `mapstructure:"grpc_laddr"`
// Maximum number of simultaneous connections.
// Does not include RPC (HTTP&WebSocket) connections. See max_open_connections
// If you want to accept a larger number than the default, make sure
// you increase your OS limits.
// 0 - unlimited.
GRPCMaxOpenConnections int `mapstructure:"grpc_max_open_connections"`
// Activate unsafe RPC commands like /dial_persistent_peers and /unsafe_flush_mempool
Unsafe bool `mapstructure:"unsafe"`
// Maximum number of simultaneous connections (including WebSocket).
// Does not include gRPC connections. See grpc_max_open_connections
// If you want to accept a larger number than the default, make sure
// you increase your OS limits.
// 0 - unlimited.
// Should be < {ulimit -Sn} - {MaxNumInboundPeers} - {MaxNumOutboundPeers} - {N of wal, db and other open files}
// 1024 - 40 - 10 - 50 = 924 = ~900
MaxOpenConnections int `mapstructure:"max_open_connections"`
// Maximum number of unique clientIDs that can /subscribe
// If you're using /broadcast_tx_commit, set to the estimated maximum number
// of broadcast_tx_commit calls per block.
MaxSubscriptionClients int `mapstructure:"max_subscription_clients"`
// Maximum number of unique queries a given client can /subscribe to
// If you're using GRPC (or Local RPC client) and /broadcast_tx_commit, set
// to the estimated maximum number of broadcast_tx_commit calls per block.
MaxSubscriptionsPerClient int `mapstructure:"max_subscriptions_per_client"`
// How long to wait for a tx to be committed during /broadcast_tx_commit
// WARNING: Using a value larger than 10s will result in increasing the
// global HTTP write timeout, which applies to all connections and endpoints.
// See https://github.com/tendermint/tendermint/issues/3435
TimeoutBroadcastTxCommit time.Duration `mapstructure:"timeout_broadcast_tx_commit"`
// Maximum size of request body, in bytes
MaxBodyBytes int64 `mapstructure:"max_body_bytes"`
// Maximum size of request header, in bytes
MaxHeaderBytes int `mapstructure:"max_header_bytes"`
// The path to a file containing certificate that is used to create the HTTPS server.
// Migth be either absolute path or path related to tendermint's config directory.
//
// If the certificate is signed by a certificate authority,
// the certFile should be the concatenation of the server's certificate, any intermediates,
// and the CA's certificate.
//
// NOTE: both tls_cert_file and tls_key_file must be present for Tendermint to create HTTPS server.
// Otherwise, HTTP server is run.
TLSCertFile string `mapstructure:"tls_cert_file"`
// The path to a file containing matching private key that is used to create the HTTPS server.
// Migth be either absolute path or path related to tendermint's config directory.
//
// NOTE: both tls_cert_file and tls_key_file must be present for Tendermint to create HTTPS server.
// Otherwise, HTTP server is run.
TLSKeyFile string `mapstructure:"tls_key_file"`
}
// DefaultRPCConfig returns a default configuration for the RPC server
func DefaultRPCConfig() *RPCConfig {
return &RPCConfig{
ListenAddress: "tcp://127.0.0.1:26657",
CORSAllowedOrigins: []string{},
CORSAllowedMethods: []string{http.MethodHead, http.MethodGet, http.MethodPost},
CORSAllowedHeaders: []string{"Origin", "Accept", "Content-Type", "X-Requested-With", "X-Server-Time"},
GRPCListenAddress: "",
GRPCMaxOpenConnections: 900,
Unsafe: false,
MaxOpenConnections: 900,
MaxSubscriptionClients: 100,
MaxSubscriptionsPerClient: 5,
TimeoutBroadcastTxCommit: 10 * time.Second,
MaxBodyBytes: int64(1000000), // 1MB
MaxHeaderBytes: 1 << 20, // same as the net/http default
TLSCertFile: "",
TLSKeyFile: "",
}
}
// TestRPCConfig returns a configuration for testing the RPC server
func TestRPCConfig() *RPCConfig {
cfg := DefaultRPCConfig()
cfg.ListenAddress = "tcp://127.0.0.1:36657"
cfg.GRPCListenAddress = "tcp://127.0.0.1:36658"
cfg.Unsafe = true
return cfg
}
// ValidateBasic performs basic validation (checking param bounds, etc.) and
// returns an error if any check fails.
func (cfg *RPCConfig) ValidateBasic() error {
if cfg.GRPCMaxOpenConnections < 0 {
return errors.New("grpc_max_open_connections can't be negative")
}
if cfg.MaxOpenConnections < 0 {
return errors.New("max_open_connections can't be negative")
}
if cfg.MaxSubscriptionClients < 0 {
return errors.New("max_subscription_clients can't be negative")
}
if cfg.MaxSubscriptionsPerClient < 0 {
return errors.New("max_subscriptions_per_client can't be negative")
}
if cfg.TimeoutBroadcastTxCommit < 0 {
return errors.New("timeout_broadcast_tx_commit can't be negative")
}
if cfg.MaxBodyBytes < 0 {
return errors.New("max_body_bytes can't be negative")
}
if cfg.MaxHeaderBytes < 0 {
return errors.New("max_header_bytes can't be negative")
}
return nil
}
// IsCorsEnabled returns true if cross-origin resource sharing is enabled.
func (cfg *RPCConfig) IsCorsEnabled() bool {
return len(cfg.CORSAllowedOrigins) != 0
}
func (cfg RPCConfig) KeyFile() string {
path := cfg.TLSKeyFile
if filepath.IsAbs(path) {
return path
}
return rootify(filepath.Join(defaultConfigDir, path), cfg.RootDir)
}
func (cfg RPCConfig) CertFile() string {
path := cfg.TLSCertFile
if filepath.IsAbs(path) {
return path
}
return rootify(filepath.Join(defaultConfigDir, path), cfg.RootDir)
}
func (cfg RPCConfig) IsTLSEnabled() bool {
return cfg.TLSCertFile != "" && cfg.TLSKeyFile != ""
}
//-----------------------------------------------------------------------------
// P2PConfig
// P2PConfig defines the configuration options for the Tendermint peer-to-peer networking layer
type P2PConfig struct { //nolint: maligned
RootDir string `mapstructure:"home"`
// Address to listen for incoming connections
ListenAddress string `mapstructure:"laddr"`
// Address to advertise to peers for them to dial
ExternalAddress string `mapstructure:"external_address"`
// Comma separated list of seed nodes to connect to
// We only use these if we can’t connect to peers in the addrbook
Seeds string `mapstructure:"seeds"`
// Comma separated list of nodes to keep persistent connections to
PersistentPeers string `mapstructure:"persistent_peers"`
// UPNP port forwarding
UPNP bool `mapstructure:"upnp"`
// Path to address book
AddrBook string `mapstructure:"addr_book_file"`
// Set true for strict address routability rules
// Set false for private or local networks
AddrBookStrict bool `mapstructure:"addr_book_strict"`
// Maximum number of inbound peers
MaxNumInboundPeers int `mapstructure:"max_num_inbound_peers"`
// Maximum number of outbound peers to connect to, excluding persistent peers
MaxNumOutboundPeers int `mapstructure:"max_num_outbound_peers"`
// List of node IDs, to which a connection will be (re)established ignoring any existing limits
UnconditionalPeerIDs string `mapstructure:"unconditional_peer_ids"`
// Maximum pause when redialing a persistent peer (if zero, exponential backoff is used)
PersistentPeersMaxDialPeriod time.Duration `mapstructure:"persistent_peers_max_dial_period"`
// Time to wait before flushing messages out on the connection
FlushThrottleTimeout time.Duration `mapstructure:"flush_throttle_timeout"`
// Maximum size of a message packet payload, in bytes
MaxPacketMsgPayloadSize int `mapstructure:"max_packet_msg_payload_size"`
// Rate at which packets can be sent, in bytes/second
SendRate int64 `mapstructure:"send_rate"`
// Rate at which packets can be received, in bytes/second
RecvRate int64 `mapstructure:"recv_rate"`
// Set true to enable the peer-exchange reactor
PexReactor bool `mapstructure:"pex"`
// Seed mode, in which node constantly crawls the network and looks for
// peers. If another node asks it for addresses, it responds and disconnects.
//
// Does not work if the peer-exchange reactor is disabled.
SeedMode bool `mapstructure:"seed_mode"`
// Comma separated list of peer IDs to keep private (will not be gossiped to
// other peers)
PrivatePeerIDs string `mapstructure:"private_peer_ids"`
// Toggle to disable guard against peers connecting from the same ip.
AllowDuplicateIP bool `mapstructure:"allow_duplicate_ip"`
// Peer connection configuration.
HandshakeTimeout time.Duration `mapstructure:"handshake_timeout"`
DialTimeout time.Duration `mapstructure:"dial_timeout"`
// Testing params.
// Force dial to fail
TestDialFail bool `mapstructure:"test_dial_fail"`
// FUzz connection
TestFuzz bool `mapstructure:"test_fuzz"`
TestFuzzConfig *FuzzConnConfig `mapstructure:"test_fuzz_config"`
}
// DefaultP2PConfig returns a default configuration for the peer-to-peer layer
func DefaultP2PConfig() *P2PConfig {
return &P2PConfig{
ListenAddress: "tcp://0.0.0.0:26656",
ExternalAddress: "",
UPNP: false,
AddrBook: defaultAddrBookPath,
AddrBookStrict: true,
MaxNumInboundPeers: 40,
MaxNumOutboundPeers: 10,
PersistentPeersMaxDialPeriod: 0 * time.Second,
FlushThrottleTimeout: 100 * time.Millisecond,
MaxPacketMsgPayloadSize: 1024, // 1 kB
SendRate: 5120000, // 5 mB/s
RecvRate: 5120000, // 5 mB/s
PexReactor: true,
SeedMode: false,
AllowDuplicateIP: false,
HandshakeTimeout: 20 * time.Second,
DialTimeout: 3 * time.Second,
TestDialFail: false,
TestFuzz: false,
TestFuzzConfig: DefaultFuzzConnConfig(),
}
}
// TestP2PConfig returns a configuration for testing the peer-to-peer layer
func TestP2PConfig() *P2PConfig {
cfg := DefaultP2PConfig()
cfg.ListenAddress = "tcp://127.0.0.1:36656"
cfg.FlushThrottleTimeout = 10 * time.Millisecond
cfg.AllowDuplicateIP = true
return cfg
}
// AddrBookFile returns the full path to the address book
func (cfg *P2PConfig) AddrBookFile() string {
return rootify(cfg.AddrBook, cfg.RootDir)
}
// ValidateBasic performs basic validation (checking param bounds, etc.) and
// returns an error if any check fails.
func (cfg *P2PConfig) ValidateBasic() error {
if cfg.MaxNumInboundPeers < 0 {
return errors.New("max_num_inbound_peers can't be negative")
}
if cfg.MaxNumOutboundPeers < 0 {
return errors.New("max_num_outbound_peers can't be negative")
}
if cfg.FlushThrottleTimeout < 0 {
return errors.New("flush_throttle_timeout can't be negative")
}
if cfg.PersistentPeersMaxDialPeriod < 0 {
return errors.New("persistent_peers_max_dial_period can't be negative")
}
if cfg.MaxPacketMsgPayloadSize < 0 {
return errors.New("max_packet_msg_payload_size can't be negative")
}
if cfg.SendRate < 0 {
return errors.New("send_rate can't be negative")
}
if cfg.RecvRate < 0 {
return errors.New("recv_rate can't be negative")
}
return nil
}
// FuzzConnConfig is a FuzzedConnection configuration.
type FuzzConnConfig struct {
Mode int
MaxDelay time.Duration
ProbDropRW float64
ProbDropConn float64
ProbSleep float64
}
// DefaultFuzzConnConfig returns the default config.
func DefaultFuzzConnConfig() *FuzzConnConfig {
return &FuzzConnConfig{
Mode: FuzzModeDrop,
MaxDelay: 3 * time.Second,
ProbDropRW: 0.2,
ProbDropConn: 0.00,
ProbSleep: 0.00,
}
}
//-----------------------------------------------------------------------------
// MempoolConfig
// MempoolConfig defines the configuration options for the Tendermint mempool
type MempoolConfig struct {
RootDir string `mapstructure:"home"`
Recheck bool `mapstructure:"recheck"`
Broadcast bool `mapstructure:"broadcast"`
WalPath string `mapstructure:"wal_dir"`
Size int `mapstructure:"size"`
MaxTxsBytes int64 `mapstructure:"max_txs_bytes"`
CacheSize int `mapstructure:"cache_size"`
MaxTxBytes int `mapstructure:"max_tx_bytes"`
}
// DefaultMempoolConfig returns a default configuration for the Tendermint mempool
func DefaultMempoolConfig() *MempoolConfig {
return &MempoolConfig{
Recheck: true,
Broadcast: true,
WalPath: "",
// Each signature verification takes .5ms, Size reduced until we implement
// ABCI Recheck
Size: 5000,
MaxTxsBytes: 1024 * 1024 * 1024, // 1GB
CacheSize: 10000,
MaxTxBytes: 1024 * 1024, // 1MB
}
}
// TestMempoolConfig returns a configuration for testing the Tendermint mempool
func TestMempoolConfig() *MempoolConfig {
cfg := DefaultMempoolConfig()
cfg.CacheSize = 1000
return cfg
}
// WalDir returns the full path to the mempool's write-ahead log
func (cfg *MempoolConfig) WalDir() string {
return rootify(cfg.WalPath, cfg.RootDir)
}
// WalEnabled returns true if the WAL is enabled.
func (cfg *MempoolConfig) WalEnabled() bool {
return cfg.WalPath != ""
}
// ValidateBasic performs basic validation (checking param bounds, etc.) and
// returns an error if any check fails.
func (cfg *MempoolConfig) ValidateBasic() error {
if cfg.Size < 0 {
return errors.New("size can't be negative")
}
if cfg.MaxTxsBytes < 0 {
return errors.New("max_txs_bytes can't be negative")
}
if cfg.CacheSize < 0 {
return errors.New("cache_size can't be negative")
}
if cfg.MaxTxBytes < 0 {
return errors.New("max_tx_bytes can't be negative")
}
return nil
}
//-----------------------------------------------------------------------------
// StateSyncConfig
// StateSyncConfig defines the configuration for the Tendermint state sync service
type StateSyncConfig struct {
Enable bool `mapstructure:"enable"`
TempDir string `mapstructure:"temp_dir"`
RPCServers []string `mapstructure:"rpc_servers"`
TrustPeriod time.Duration `mapstructure:"trust_period"`
TrustHeight int64 `mapstructure:"trust_height"`
TrustHash string `mapstructure:"trust_hash"`
}
func (cfg *StateSyncConfig) TrustHashBytes() []byte {
// validated in ValidateBasic, so we can safely panic here
bytes, err := hex.DecodeString(cfg.TrustHash)
if err != nil {
panic(err)
}
return bytes
}
// DefaultStateSyncConfig returns a default configuration for the state sync service
func DefaultStateSyncConfig() *StateSyncConfig {
return &StateSyncConfig{}
}
// TestFastSyncConfig returns a default configuration for the state sync service
func TestStateSyncConfig() *StateSyncConfig {
return DefaultStateSyncConfig()
}
// ValidateBasic performs basic validation.
func (cfg *StateSyncConfig) ValidateBasic() error {
if cfg.Enable {
if len(cfg.RPCServers) == 0 {
return errors.New("rpc_servers is required")
}
if len(cfg.RPCServers) < 2 {
return errors.New("at least two rpc_servers entries is required")
}
for _, server := range cfg.RPCServers {
if len(server) == 0 {
return errors.New("found empty rpc_servers entry")
}
}
if cfg.TrustPeriod <= 0 {
return errors.New("trusted_period is required")
}
if cfg.TrustHeight <= 0 {
return errors.New("trusted_height is required")
}
if len(cfg.TrustHash) == 0 {
return errors.New("trusted_hash is required")
}
_, err := hex.DecodeString(cfg.TrustHash)
if err != nil {
return fmt.Errorf("invalid trusted_hash: %w", err)
}
}
return nil
}
//-----------------------------------------------------------------------------
// FastSyncConfig
// FastSyncConfig defines the configuration for the Tendermint fast sync service
type FastSyncConfig struct {
Version string `mapstructure:"version"`
}
// DefaultFastSyncConfig returns a default configuration for the fast sync service
func DefaultFastSyncConfig() *FastSyncConfig {
return &FastSyncConfig{
Version: "v0",
}
}
// TestFastSyncConfig returns a default configuration for the fast sync.
func TestFastSyncConfig() *FastSyncConfig {
return DefaultFastSyncConfig()
}
// ValidateBasic performs basic validation.
func (cfg *FastSyncConfig) ValidateBasic() error {
switch cfg.Version {
case "v0":
return nil
case "v1":
return nil
case "v2":
return nil
default:
return fmt.Errorf("unknown fastsync version %s", cfg.Version)
}
}
//-----------------------------------------------------------------------------
// ConsensusConfig
// ConsensusConfig defines the configuration for the Tendermint consensus service,
// including timeouts and details about the WAL and the block structure.
type ConsensusConfig struct {
RootDir string `mapstructure:"home"`
WalPath string `mapstructure:"wal_file"`
walFile string // overrides WalPath if set
TimeoutPropose time.Duration `mapstructure:"timeout_propose"`
TimeoutProposeDelta time.Duration `mapstructure:"timeout_propose_delta"`
TimeoutPrevote time.Duration `mapstructure:"timeout_prevote"`
TimeoutPrevoteDelta time.Duration `mapstructure:"timeout_prevote_delta"`
TimeoutPrecommit time.Duration `mapstructure:"timeout_precommit"`
TimeoutPrecommitDelta time.Duration `mapstructure:"timeout_precommit_delta"`
TimeoutCommit time.Duration `mapstructure:"timeout_commit"`
// Make progress as soon as we have all the precommits (as if TimeoutCommit = 0)
SkipTimeoutCommit bool `mapstructure:"skip_timeout_commit"`
// EmptyBlocks mode and possible interval between empty blocks
CreateEmptyBlocks bool `mapstructure:"create_empty_blocks"`
CreateEmptyBlocksInterval time.Duration `mapstructure:"create_empty_blocks_interval"`
// Reactor sleep duration parameters
PeerGossipSleepDuration time.Duration `mapstructure:"peer_gossip_sleep_duration"`
PeerQueryMaj23SleepDuration time.Duration `mapstructure:"peer_query_maj23_sleep_duration"`
}
// DefaultConsensusConfig returns a default configuration for the consensus service
func DefaultConsensusConfig() *ConsensusConfig {
return &ConsensusConfig{
WalPath: filepath.Join(defaultDataDir, "cs.wal", "wal"),
TimeoutPropose: 3000 * time.Millisecond,
TimeoutProposeDelta: 500 * time.Millisecond,
TimeoutPrevote: 1000 * time.Millisecond,
TimeoutPrevoteDelta: 500 * time.Millisecond,
TimeoutPrecommit: 1000 * time.Millisecond,
TimeoutPrecommitDelta: 500 * time.Millisecond,
TimeoutCommit: 1000 * time.Millisecond,
SkipTimeoutCommit: false,
CreateEmptyBlocks: true,
CreateEmptyBlocksInterval: 0 * time.Second,
PeerGossipSleepDuration: 100 * time.Millisecond,
PeerQueryMaj23SleepDuration: 2000 * time.Millisecond,
}
}
// TestConsensusConfig returns a configuration for testing the consensus service
func TestConsensusConfig() *ConsensusConfig {
cfg := DefaultConsensusConfig()
cfg.TimeoutPropose = 40 * time.Millisecond
cfg.TimeoutProposeDelta = 1 * time.Millisecond
cfg.TimeoutPrevote = 10 * time.Millisecond
cfg.TimeoutPrevoteDelta = 1 * time.Millisecond
cfg.TimeoutPrecommit = 10 * time.Millisecond
cfg.TimeoutPrecommitDelta = 1 * time.Millisecond
cfg.TimeoutCommit = 10 * time.Millisecond
cfg.SkipTimeoutCommit = true
cfg.PeerGossipSleepDuration = 5 * time.Millisecond
cfg.PeerQueryMaj23SleepDuration = 250 * time.Millisecond
return cfg
}
// WaitForTxs returns true if the consensus should wait for transactions before entering the propose step
func (cfg *ConsensusConfig) WaitForTxs() bool {
return !cfg.CreateEmptyBlocks || cfg.CreateEmptyBlocksInterval > 0
}
// Propose returns the amount of time to wait for a proposal
func (cfg *ConsensusConfig) Propose(round int32) time.Duration {
return time.Duration(
cfg.TimeoutPropose.Nanoseconds()+cfg.TimeoutProposeDelta.Nanoseconds()*int64(round),
) * time.Nanosecond
}
// Prevote returns the amount of time to wait for straggler votes after receiving any +2/3 prevotes
func (cfg *ConsensusConfig) Prevote(round int32) time.Duration {
return time.Duration(
cfg.TimeoutPrevote.Nanoseconds()+cfg.TimeoutPrevoteDelta.Nanoseconds()*int64(round),
) * time.Nanosecond
}
// Precommit returns the amount of time to wait for straggler votes after receiving any +2/3 precommits
func (cfg *ConsensusConfig) Precommit(round int32) time.Duration {
return time.Duration(
cfg.TimeoutPrecommit.Nanoseconds()+cfg.TimeoutPrecommitDelta.Nanoseconds()*int64(round),
) * time.Nanosecond
}
// Commit returns the amount of time to wait for straggler votes after receiving +2/3 precommits
// for a single block (ie. a commit).
func (cfg *ConsensusConfig) Commit(t time.Time) time.Time {
return t.Add(cfg.TimeoutCommit)
}
// WalFile returns the full path to the write-ahead log file
func (cfg *ConsensusConfig) WalFile() string {
if cfg.walFile != "" {
return cfg.walFile
}
return rootify(cfg.WalPath, cfg.RootDir)
}
// SetWalFile sets the path to the write-ahead log file
func (cfg *ConsensusConfig) SetWalFile(walFile string) {
cfg.walFile = walFile
}
// ValidateBasic performs basic validation (checking param bounds, etc.) and
// returns an error if any check fails.
func (cfg *ConsensusConfig) ValidateBasic() error {
if cfg.TimeoutPropose < 0 {
return errors.New("timeout_propose can't be negative")
}
if cfg.TimeoutProposeDelta < 0 {
return errors.New("timeout_propose_delta can't be negative")
}
if cfg.TimeoutPrevote < 0 {
return errors.New("timeout_prevote can't be negative")
}
if cfg.TimeoutPrevoteDelta < 0 {
return errors.New("timeout_prevote_delta can't be negative")
}
if cfg.TimeoutPrecommit < 0 {
return errors.New("timeout_precommit can't be negative")
}
if cfg.TimeoutPrecommitDelta < 0 {
return errors.New("timeout_precommit_delta can't be negative")
}
if cfg.TimeoutCommit < 0 {
return errors.New("timeout_commit can't be negative")
}
if cfg.CreateEmptyBlocksInterval < 0 {
return errors.New("create_empty_blocks_interval can't be negative")
}
if cfg.PeerGossipSleepDuration < 0 {
return errors.New("peer_gossip_sleep_duration can't be negative")
}
if cfg.PeerQueryMaj23SleepDuration < 0 {
return errors.New("peer_query_maj23_sleep_duration can't be negative")
}
return nil
}
//-----------------------------------------------------------------------------
// TxIndexConfig
// Remember that Event has the following structure:
// type: [
// key: value,
// ...
// ]
//
// CompositeKeys are constructed by `type.key`
// TxIndexConfig defines the configuration for the transaction indexer,
// including composite keys to index.
type TxIndexConfig struct {
// What indexer to use for transactions
//
// Options:
// 1) "null"
// 2) "kv" (default) - the simplest possible indexer,
// backed by key-value storage (defaults to levelDB; see DBBackend).
Indexer string `mapstructure:"indexer"`
}
// DefaultTxIndexConfig returns a default configuration for the transaction indexer.
func DefaultTxIndexConfig() *TxIndexConfig {
return &TxIndexConfig{
Indexer: "kv",
}
}
// TestTxIndexConfig returns a default configuration for the transaction indexer.
func TestTxIndexConfig() *TxIndexConfig {
return DefaultTxIndexConfig()
}
//-----------------------------------------------------------------------------
// InstrumentationConfig
// InstrumentationConfig defines the configuration for metrics reporting.
type InstrumentationConfig struct {
// When true, Prometheus metrics are served under /metrics on
// PrometheusListenAddr.
// Check out the documentation for the list of available metrics.
Prometheus bool `mapstructure:"prometheus"`
// Address to listen for Prometheus collector(s) connections.
PrometheusListenAddr string `mapstructure:"prometheus_listen_addr"`
// Maximum number of simultaneous connections.
// If you want to accept a larger number than the default, make sure
// you increase your OS limits.
// 0 - unlimited.
MaxOpenConnections int `mapstructure:"max_open_connections"`
// Instrumentation namespace.
Namespace string `mapstructure:"namespace"`
}
// DefaultInstrumentationConfig returns a default configuration for metrics
// reporting.
func DefaultInstrumentationConfig() *InstrumentationConfig {
return &InstrumentationConfig{
Prometheus: false,
PrometheusListenAddr: ":26660",
MaxOpenConnections: 3,
Namespace: "tendermint",
}
}
// TestInstrumentationConfig returns a default configuration for metrics
// reporting.
func TestInstrumentationConfig() *InstrumentationConfig {
return DefaultInstrumentationConfig()
}
// ValidateBasic performs basic validation (checking param bounds, etc.) and
// returns an error if any check fails.
func (cfg *InstrumentationConfig) ValidateBasic() error {
if cfg.MaxOpenConnections < 0 {
return errors.New("max_open_connections can't be negative")
}
return nil
}
//-----------------------------------------------------------------------------
// Utils
// helper function to make config creation independent of root dir
func rootify(path, root string) string {
if filepath.IsAbs(path) {
return path
}
return filepath.Join(root, path)
}
//-----------------------------------------------------------------------------
// Moniker
var defaultMoniker = getDefaultMoniker()
// getDefaultMoniker returns a default moniker, which is the host name. If runtime
// fails to get the host name, "anonymous" will be returned.
func getDefaultMoniker() string {
moniker, err := os.Hostname()
if err != nil {
moniker = "anonymous"
}
return moniker
}