View Source
const (
	// MinimumExpirationWarningInterval is the default minimum time interval
	// between consecutive warnings about certificate expiration.
	MinimumExpirationWarningInterval = time.Minute * 5
View Source
const (
	// RetryTimeout is the time the block puller retries.
	RetryTimeout = time.Second * 10


View Source
var (
	EgressQueueLengthOpts = metrics.GaugeOpts{
		Namespace:    "cluster",
		Subsystem:    "comm",
		Name:         "egress_queue_length",
		Help:         "Length of the egress queue.",
		LabelNames:   []string{"host", "msg_type", "channel"},
		StatsdFormat: "%{#fqname}.%{host}.%{msg_type}.%{channel}",

	EgressQueueCapacityOpts = metrics.GaugeOpts{
		Namespace:    "cluster",
		Subsystem:    "comm",
		Name:         "egress_queue_capacity",
		Help:         "Capacity of the egress queue.",
		LabelNames:   []string{"host", "msg_type", "channel"},
		StatsdFormat: "%{#fqname}.%{host}.%{msg_type}.%{channel}",

	EgressWorkersOpts = metrics.GaugeOpts{
		Namespace:    "cluster",
		Subsystem:    "comm",
		Name:         "egress_queue_workers",
		Help:         "Count of egress queue workers.",
		LabelNames:   []string{"channel"},
		StatsdFormat: "%{#fqname}.%{channel}",

	IngressStreamsCountOpts = metrics.GaugeOpts{
		Namespace:    "cluster",
		Subsystem:    "comm",
		Name:         "ingress_stream_count",
		Help:         "Count of streams from other nodes.",
		StatsdFormat: "%{#fqname}",

	EgressStreamsCountOpts = metrics.GaugeOpts{
		Namespace:    "cluster",
		Subsystem:    "comm",
		Name:         "egress_stream_count",
		Help:         "Count of streams to other nodes.",
		LabelNames:   []string{"channel"},
		StatsdFormat: "%{#fqname}.%{channel}",

	EgressTLSConnectionCountOpts = metrics.GaugeOpts{
		Namespace:    "cluster",
		Subsystem:    "comm",
		Name:         "egress_tls_connection_count",
		Help:         "Count of TLS connections to other nodes.",
		StatsdFormat: "%{#fqname}",

	MessageSendTimeOpts = metrics.HistogramOpts{
		Namespace:    "cluster",
		Subsystem:    "comm",
		Name:         "msg_send_time",
		Help:         "The time it takes to send a message in seconds.",
		LabelNames:   []string{"host", "channel"},
		StatsdFormat: "%{#fqname}.%{host}.%{channel}",

	MessagesDroppedCountOpts = metrics.CounterOpts{
		Namespace:    "cluster",
		Subsystem:    "comm",
		Name:         "msg_dropped_count",
		Help:         "Count of messages dropped.",
		LabelNames:   []string{"host", "channel"},
		StatsdFormat: "%{#fqname}.%{host}.%{channel}",
View Source
var ErrForbidden = errors.New("forbidden pulling the channel")

    ErrForbidden denotes that an ordering node refuses sending blocks due to access control.

    View Source
    var ErrNotInChannel = errors.New("not in the channel")

      ErrNotInChannel denotes that an ordering node is not in the channel

      View Source
      var ErrRetryCountExhausted = errors.New("retry attempts exhausted")
      View Source
      var ErrServiceUnavailable = errors.New("service unavailable")

        ErrServiceUnavailable denotes that an ordering node is not servicing at the moment.

        View Source
        var ErrSkipped = errors.New("skipped")

          ErrSkipped denotes that replicating a chain was skipped


          func AnyChannel

          func AnyChannel(_ string) bool

            AnyChannel accepts all channels.

            func BlockToString

            func BlockToString(block *common.Block) string

              BlockToString returns a string representation of this block.

              func ConfigFromBlock

              func ConfigFromBlock(block *common.Block) (*common.ConfigEnvelope, error)

                ConfigFromBlock returns a ConfigEnvelope if exists, or a *NotAConfigBlock error. It may also return some other error in case parsing failed.

                func DERtoPEM

                func DERtoPEM(der []byte) string

                  DERtoPEM returns a PEM representation of the DER encoded certificate

                  func ExtractGenesisBlock

                  func ExtractGenesisBlock(logger *flogging.FabricLogger, block *common.Block) (string, *common.Block, error)

                    ExtractGenesisBlock determines if a config block creates new channel, in which case it returns channel name, genesis block and nil error.

                    func LastConfigBlock

                    func LastConfigBlock(block *common.Block, blockRetriever BlockRetriever) (*common.Block, error)

                      LastConfigBlock returns the last config block relative to the given block.

                      func NewStreamsByType

                      func NewStreamsByType() map[OperationType]map[uint64]*Stream

                        NewStreamsByType returns a mapping of operation type to a mapping of destination to stream.

                        func Participant

                        func Participant(puller ChainPuller, analyzeLastConfBlock SelfMembershipPredicate) error

                          Participant returns whether the caller participates in the chain. It receives a ChainPuller that should already be calibrated for the chain, and a SelfMembershipPredicate that is used to detect whether the caller should service the chain. It returns nil if the caller participates in the chain. It may return: ErrNotInChannel in case the caller doesn't participate in the chain. ErrForbidden in case the caller is forbidden from pulling the block. ErrServiceUnavailable in case all orderers reachable cannot complete the request. ErrRetryCountExhausted in case no orderer is reachable.

                          func PullLastConfigBlock

                          func PullLastConfigBlock(puller ChainPuller) (*common.Block, error)

                            PullLastConfigBlock pulls the last configuration block, or returns an error on failure.

                            func SignatureSetFromBlock

                            func SignatureSetFromBlock(block *common.Block) ([]*protoutil.SignedData, error)

                              SignatureSetFromBlock creates a signature set out of a block.

                              func VerifyBlockHash

                              func VerifyBlockHash(indexInBuffer int, blockBuff []*common.Block) error

                                VerifyBlockHash verifies the hash chain of the block with the given index among the blocks of the given block buffer.

                                func VerifyBlockSignature

                                func VerifyBlockSignature(block *common.Block, verifier BlockVerifier, config *common.ConfigEnvelope) error

                                  VerifyBlockSignature verifies the signature on the block with the given BlockVerifier and the given config.

                                  func VerifyBlocks

                                  func VerifyBlocks(blockBuff []*common.Block, signatureVerifier BlockVerifier) error

                                    VerifyBlocks verifies the given consecutive sequence of blocks is valid, and returns nil if it's valid, else an error.


                                    type BlockCommitFunc

                                    type BlockCommitFunc func(block *common.Block, channel string)

                                      BlockCommitFunc signals a block commit.

                                      type BlockPuller

                                      type BlockPuller struct {
                                      	// Configuration
                                      	MaxPullBlockRetries uint64
                                      	MaxTotalBufferBytes int
                                      	Signer              identity.SignerSerializer
                                      	TLSCert             []byte
                                      	Channel             string
                                      	FetchTimeout        time.Duration
                                      	RetryTimeout        time.Duration
                                      	Logger              *flogging.FabricLogger
                                      	Dialer              Dialer
                                      	VerifyBlockSequence BlockSequenceVerifier
                                      	Endpoints           []EndpointCriteria
                                      	// contains filtered or unexported fields

                                        BlockPuller pulls blocks from remote ordering nodes. Its operations are not thread safe.

                                        func BlockPullerFromConfigBlock

                                        func BlockPullerFromConfigBlock(conf PullerConfig, block *common.Block, verifierRetriever VerifierRetriever, bccsp bccsp.BCCSP) (*BlockPuller, error)

                                          BlockPullerFromConfigBlock returns a BlockPuller that doesn't verify signatures on blocks.

                                          func (*BlockPuller) Clone

                                          func (p *BlockPuller) Clone() *BlockPuller

                                            Clone returns a copy of this BlockPuller initialized for the given channel

                                            func (*BlockPuller) Close

                                            func (p *BlockPuller) Close()

                                              Close makes the BlockPuller close the connection and stream with the remote endpoint, and wipe the internal block buffer.

                                              func (*BlockPuller) HeightsByEndpoints

                                              func (p *BlockPuller) HeightsByEndpoints() (map[string]uint64, error)

                                                HeightsByEndpoints returns the block heights by endpoints of orderers

                                                func (*BlockPuller) PullBlock

                                                func (p *BlockPuller) PullBlock(seq uint64) *common.Block

                                                  PullBlock blocks until a block with the given sequence is fetched from some remote ordering node, or until consecutive failures of fetching the block exceed MaxPullBlockRetries.

                                                  type BlockRetriever

                                                  type BlockRetriever interface {
                                                  	// Block returns a block with the given number,
                                                  	// or nil if such a block doesn't exist.
                                                  	Block(number uint64) *common.Block

                                                    BlockRetriever retrieves blocks

                                                    type BlockSequenceVerifier

                                                    type BlockSequenceVerifier func(blocks []*common.Block, channel string) error

                                                      BlockSequenceVerifier verifies that the given consecutive sequence of blocks is valid.

                                                      type BlockValidationPolicyVerifier

                                                      type BlockValidationPolicyVerifier struct {
                                                      	Logger    *flogging.FabricLogger
                                                      	Channel   string
                                                      	PolicyMgr policies.Manager
                                                      	BCCSP     bccsp.BCCSP

                                                        BlockValidationPolicyVerifier verifies signatures based on the block validation policy.

                                                        func (*BlockValidationPolicyVerifier) VerifyBlockSignature

                                                        func (bv *BlockValidationPolicyVerifier) VerifyBlockSignature(sd []*protoutil.SignedData, envelope *common.ConfigEnvelope) error

                                                          VerifyBlockSignature verifies the signed data associated to a block, optionally with the given config envelope.

                                                          type BlockVerifier

                                                          type BlockVerifier interface {
                                                          	// VerifyBlockSignature verifies a signature of a block.
                                                          	// It has an optional argument of a configuration envelope
                                                          	// which would make the block verification to use validation rules
                                                          	// based on the given configuration in the ConfigEnvelope.
                                                          	// If the config envelope passed is nil, then the validation rules used
                                                          	// are the ones that were applied at commit of previous blocks.
                                                          	VerifyBlockSignature(sd []*protoutil.SignedData, config *common.ConfigEnvelope) error

                                                            BlockVerifier verifies block signatures.

                                                            type BlockVerifierAssembler

                                                            type BlockVerifierAssembler struct {
                                                            	Logger *flogging.FabricLogger
                                                            	BCCSP  bccsp.BCCSP

                                                              BlockVerifierAssembler creates a BlockVerifier out of a config envelope

                                                              func (*BlockVerifierAssembler) VerifierFromConfig

                                                              func (bva *BlockVerifierAssembler) VerifierFromConfig(configuration *common.ConfigEnvelope, channel string) (BlockVerifier, error)

                                                                VerifierFromConfig creates a BlockVerifier from the given configuration.

                                                                type ChainInspector

                                                                type ChainInspector struct {
                                                                	Logger          *flogging.FabricLogger
                                                                	Puller          ChainPuller
                                                                	LastConfigBlock *common.Block

                                                                  ChainInspector walks over a chain

                                                                  func (*ChainInspector) Channels

                                                                  func (ci *ChainInspector) Channels() []ChannelGenesisBlock

                                                                    Channels returns the list of ChannelGenesisBlocks for all channels. Each such ChannelGenesisBlock contains the genesis block of the channel.

                                                                    func (*ChainInspector) Close

                                                                    func (ci *ChainInspector) Close()

                                                                      Close closes the ChainInspector

                                                                      type ChainPuller

                                                                      type ChainPuller interface {
                                                                      	// PullBlock pulls the given block from some orderer node
                                                                      	PullBlock(seq uint64) *common.Block
                                                                      	// HeightsByEndpoints returns the block heights by endpoints of orderers
                                                                      	HeightsByEndpoints() (map[string]uint64, error)
                                                                      	// Close closes the ChainPuller

                                                                        ChainPuller pulls blocks from a chain

                                                                        type ChannelExtractor

                                                                        type ChannelExtractor interface {
                                                                        	TargetChannel(message proto.Message) string

                                                                          ChannelExtractor extracts the channel of a given message, or returns an empty string if that's not possible

                                                                          type ChannelGenesisBlock

                                                                          type ChannelGenesisBlock struct {
                                                                          	ChannelName  string
                                                                          	GenesisBlock *common.Block

                                                                            ChannelGenesisBlock wraps a Block and its channel name

                                                                            type ChannelLister

                                                                            type ChannelLister interface {
                                                                            	// Channels returns a list of channels
                                                                            	Channels() []ChannelGenesisBlock
                                                                            	// Close closes the ChannelLister

                                                                              ChannelLister returns a list of channels

                                                                              type ChannelPredicate

                                                                              type ChannelPredicate func(channelName string) bool

                                                                                ChannelPredicate accepts channels according to their names.

                                                                                type ClusterClient

                                                                                type ClusterClient interface {
                                                                                	Step(ctx context.Context, opts ...grpc.CallOption) (orderer.Cluster_StepClient, error)

                                                                                  ClusterClient creates streams that point to a remote cluster member.

                                                                                  type Comm

                                                                                  type Comm struct {
                                                                                  	MinimumExpirationWarningInterval time.Duration
                                                                                  	CertExpWarningThreshold          time.Duration
                                                                                  	SendBufferSize int
                                                                                  	Lock           sync.RWMutex
                                                                                  	Logger         *flogging.FabricLogger
                                                                                  	ChanExt        ChannelExtractor
                                                                                  	H              Handler
                                                                                  	Connections    *ConnectionStore
                                                                                  	Chan2Members   MembersByChannel
                                                                                  	Metrics        *Metrics
                                                                                  	// contains filtered or unexported fields

                                                                                    Comm implements Communicator

                                                                                    func (*Comm) Configure

                                                                                    func (c *Comm) Configure(channel string, newNodes []RemoteNode)

                                                                                      Configure configures the channel with the given RemoteNodes

                                                                                      func (*Comm) DispatchConsensus

                                                                                      func (c *Comm) DispatchConsensus(ctx context.Context, request *orderer.ConsensusRequest) error

                                                                                        DispatchConsensus identifies the channel and sender of the step request and passes it to the underlying Handler

                                                                                        func (*Comm) DispatchSubmit

                                                                                        func (c *Comm) DispatchSubmit(ctx context.Context, request *orderer.SubmitRequest) error

                                                                                          DispatchSubmit identifies the channel and sender of the submit request and passes it to the underlying Handler

                                                                                          func (*Comm) Remote

                                                                                          func (c *Comm) Remote(channel string, id uint64) (*RemoteContext, error)

                                                                                            Remote obtains a RemoteContext linked to the destination node on the context of a given channel

                                                                                            func (*Comm) Shutdown

                                                                                            func (c *Comm) Shutdown()

                                                                                              Shutdown shuts down the instance

                                                                                              type Communicator

                                                                                              type Communicator interface {
                                                                                              	// Remote returns a RemoteContext for the given RemoteNode ID in the context
                                                                                              	// of the given channel, or error if connection cannot be established, or
                                                                                              	// the channel wasn't configured
                                                                                              	Remote(channel string, id uint64) (*RemoteContext, error)
                                                                                              	// Configure configures the communication to connect to all
                                                                                              	// given members, and disconnect from any members not among the given
                                                                                              	// members.
                                                                                              	Configure(channel string, members []RemoteNode)
                                                                                              	// Shutdown shuts down the communicator

                                                                                                Communicator defines communication for a consenter

                                                                                                type ConnByCertMap

                                                                                                type ConnByCertMap map[string]*grpc.ClientConn

                                                                                                  ConnByCertMap maps certificates represented as strings to gRPC connections

                                                                                                  func (ConnByCertMap) Lookup

                                                                                                  func (cbc ConnByCertMap) Lookup(cert []byte) (*grpc.ClientConn, bool)

                                                                                                    Lookup looks up a certificate and returns the connection that was mapped to the certificate, and whether it was found or not

                                                                                                    func (ConnByCertMap) Put

                                                                                                    func (cbc ConnByCertMap) Put(cert []byte, conn *grpc.ClientConn)

                                                                                                      Put associates the given connection to the certificate

                                                                                                      func (ConnByCertMap) Remove

                                                                                                      func (cbc ConnByCertMap) Remove(cert []byte)

                                                                                                        Remove removes the connection that is associated to the given certificate

                                                                                                        func (ConnByCertMap) Size

                                                                                                        func (cbc ConnByCertMap) Size() int

                                                                                                        type ConnectionMapper

                                                                                                        type ConnectionMapper interface {
                                                                                                        	Lookup(cert []byte) (*grpc.ClientConn, bool)
                                                                                                        	Put(cert []byte, conn *grpc.ClientConn)
                                                                                                        	Remove(cert []byte)
                                                                                                        	Size() int

                                                                                                          ConnectionMapper maps certificates to connections

                                                                                                          type ConnectionStore

                                                                                                          type ConnectionStore struct {
                                                                                                          	Connections ConnectionMapper
                                                                                                          	// contains filtered or unexported fields

                                                                                                            ConnectionStore stores connections to remote nodes

                                                                                                            func NewConnectionStore

                                                                                                            func NewConnectionStore(dialer SecureDialer, tlsConnectionCount metrics.Gauge) *ConnectionStore

                                                                                                              NewConnectionStore creates a new ConnectionStore with the given SecureDialer

                                                                                                              func (*ConnectionStore) Connection

                                                                                                              func (c *ConnectionStore) Connection(endpoint string, expectedServerCert []byte) (*grpc.ClientConn, error)

                                                                                                                Connection obtains a connection to the given endpoint and expects the given server certificate to be presented by the remote node

                                                                                                                func (*ConnectionStore) Disconnect

                                                                                                                func (c *ConnectionStore) Disconnect(expectedServerCert []byte)

                                                                                                                  Disconnect closes the gRPC connection that is mapped to the given certificate

                                                                                                                  type Dialer

                                                                                                                  type Dialer interface {
                                                                                                                  	Dial(endpointCriteria EndpointCriteria) (*grpc.ClientConn, error)

                                                                                                                    Dialer creates a gRPC connection to a remote address

                                                                                                                    type Dispatcher

                                                                                                                    type Dispatcher interface {
                                                                                                                    	DispatchSubmit(ctx context.Context, request *orderer.SubmitRequest) error
                                                                                                                    	DispatchConsensus(ctx context.Context, request *orderer.ConsensusRequest) error

                                                                                                                      Dispatcher dispatches requests

                                                                                                                      type EndpointCriteria

                                                                                                                      type EndpointCriteria struct {
                                                                                                                      	Endpoint   string   // Endpoint of the form host:port
                                                                                                                      	TLSRootCAs [][]byte // PEM encoded TLS root CA certificates

                                                                                                                        EndpointCriteria defines criteria of how to connect to a remote orderer node.

                                                                                                                        func EndpointconfigFromConfigBlock

                                                                                                                        func EndpointconfigFromConfigBlock(block *common.Block, bccsp bccsp.BCCSP) ([]EndpointCriteria, error)

                                                                                                                          EndpointconfigFromConfigBlock retrieves TLS CA certificates and endpoints from a config block.

                                                                                                                          func (EndpointCriteria) String

                                                                                                                          func (ep EndpointCriteria) String() string

                                                                                                                            String returns a string representation of this EndpointCriteria

                                                                                                                            type GenesisBlocks

                                                                                                                            type GenesisBlocks []ChannelGenesisBlock

                                                                                                                              GenesisBlocks aggregates several ChannelGenesisBlocks

                                                                                                                              func (GenesisBlocks) Names

                                                                                                                              func (gbs GenesisBlocks) Names() []string

                                                                                                                                Names returns the channel names all ChannelGenesisBlocks

                                                                                                                                type Handler

                                                                                                                                type Handler interface {
                                                                                                                                	OnConsensus(channel string, sender uint64, req *orderer.ConsensusRequest) error
                                                                                                                                	OnSubmit(channel string, sender uint64, req *orderer.SubmitRequest) error

                                                                                                                                  Handler handles Step() and Submit() requests and returns a corresponding response

                                                                                                                                  type ImpatientStream

                                                                                                                                  type ImpatientStream struct {
                                                                                                                                  	// contains filtered or unexported fields

                                                                                                                                    ImpatientStream aborts the stream if it waits for too long for a message.

                                                                                                                                    func (*ImpatientStream) Recv

                                                                                                                                    func (stream *ImpatientStream) Recv() (*orderer.DeliverResponse, error)

                                                                                                                                      Recv blocks until a response is received from the stream or the timeout expires.

                                                                                                                                      type ImpatientStreamCreator

                                                                                                                                      type ImpatientStreamCreator func() (*ImpatientStream, error)

                                                                                                                                        ImpatientStreamCreator creates an ImpatientStream

                                                                                                                                        func NewImpatientStream

                                                                                                                                        func NewImpatientStream(conn *grpc.ClientConn, waitTimeout time.Duration) ImpatientStreamCreator

                                                                                                                                          NewImpatientStream returns a ImpatientStreamCreator that creates impatientStreams.

                                                                                                                                          type LedgerFactory

                                                                                                                                          type LedgerFactory interface {
                                                                                                                                          	// GetOrCreate gets an existing ledger (if it exists)
                                                                                                                                          	// or creates it if it does not
                                                                                                                                          	GetOrCreate(chainID string) (LedgerWriter, error)

                                                                                                                                            LedgerFactory retrieves or creates new ledgers by chainID

                                                                                                                                            type LedgerInterceptor

                                                                                                                                            type LedgerInterceptor struct {
                                                                                                                                            	Channel              string
                                                                                                                                            	InterceptBlockCommit BlockCommitFunc

                                                                                                                                              LedgerInterceptor intercepts block commits.

                                                                                                                                              func (*LedgerInterceptor) Append

                                                                                                                                              func (interceptor *LedgerInterceptor) Append(block *common.Block) error

                                                                                                                                                Append commits a block into the ledger, and also fires the configured callback.

                                                                                                                                                type LedgerWriter

                                                                                                                                                type LedgerWriter interface {
                                                                                                                                                	// Append a new block to the ledger
                                                                                                                                                	Append(block *common.Block) error
                                                                                                                                                	// Height returns the number of blocks on the ledger
                                                                                                                                                	Height() uint64

                                                                                                                                                  LedgerWriter allows the caller to write blocks and inspect the height

                                                                                                                                                  type MemberMapping

                                                                                                                                                  type MemberMapping map[uint64]*Stub

                                                                                                                                                    MemberMapping defines NetworkMembers by their ID

                                                                                                                                                    func (MemberMapping) ByID

                                                                                                                                                    func (mp MemberMapping) ByID(ID uint64) *Stub

                                                                                                                                                      ByID retrieves the Stub with the given ID from the MemberMapping

                                                                                                                                                      func (MemberMapping) LookupByClientCert

                                                                                                                                                      func (mp MemberMapping) LookupByClientCert(cert []byte) *Stub

                                                                                                                                                        LookupByClientCert retrieves a Stub with the given client certificate

                                                                                                                                                        func (MemberMapping) Put

                                                                                                                                                        func (mp MemberMapping) Put(stub *Stub)

                                                                                                                                                          Put inserts the given stub to the MemberMapping

                                                                                                                                                          func (MemberMapping) ServerCertificates

                                                                                                                                                          func (mp MemberMapping) ServerCertificates() StringSet

                                                                                                                                                            ServerCertificates returns a set of the server certificates represented as strings

                                                                                                                                                            type MembersByChannel

                                                                                                                                                            type MembersByChannel map[string]MemberMapping

                                                                                                                                                              MembersByChannel is a mapping from channel name to MemberMapping

                                                                                                                                                              type Metrics

                                                                                                                                                              type Metrics struct {
                                                                                                                                                              	EgressQueueLength        metrics.Gauge
                                                                                                                                                              	EgressQueueCapacity      metrics.Gauge
                                                                                                                                                              	EgressWorkerCount        metrics.Gauge
                                                                                                                                                              	IngressStreamsCount      metrics.Gauge
                                                                                                                                                              	EgressStreamsCount       metrics.Gauge
                                                                                                                                                              	EgressTLSConnectionCount metrics.Gauge
                                                                                                                                                              	MessageSendTime          metrics.Histogram
                                                                                                                                                              	MessagesDroppedCount     metrics.Counter

                                                                                                                                                                Metrics defines the metrics for the cluster.

                                                                                                                                                                func NewMetrics

                                                                                                                                                                func NewMetrics(provider MetricsProvider) *Metrics

                                                                                                                                                                  NewMetrics initializes new metrics for the cluster infrastructure.

                                                                                                                                                                  type MetricsProvider

                                                                                                                                                                  type MetricsProvider interface {
                                                                                                                                                                  	// NewCounter creates a new instance of a Counter.
                                                                                                                                                                  	NewCounter(opts metrics.CounterOpts) metrics.Counter
                                                                                                                                                                  	// NewGauge creates a new instance of a Gauge.
                                                                                                                                                                  	NewGauge(opts metrics.GaugeOpts) metrics.Gauge
                                                                                                                                                                  	// NewHistogram creates a new instance of a Histogram.
                                                                                                                                                                  	NewHistogram(opts metrics.HistogramOpts) metrics.Histogram

                                                                                                                                                                    A MetricsProvider is an abstraction for a metrics provider. It is a factory for Counter, Gauge, and Histogram meters.

                                                                                                                                                                    type NoopBlockVerifier

                                                                                                                                                                    type NoopBlockVerifier struct{}

                                                                                                                                                                      NoopBlockVerifier doesn't verify block signatures

                                                                                                                                                                      func (*NoopBlockVerifier) VerifyBlockSignature

                                                                                                                                                                      func (*NoopBlockVerifier) VerifyBlockSignature(sd []*protoutil.SignedData, config *common.ConfigEnvelope) error

                                                                                                                                                                        VerifyBlockSignature accepts all signatures over blocks.

                                                                                                                                                                        type OperationType

                                                                                                                                                                        type OperationType int

                                                                                                                                                                          OperationType denotes a type of operation that the RPC can perform such as sending a transaction, or a consensus related message.

                                                                                                                                                                          const (
                                                                                                                                                                          	ConsensusOperation OperationType = iota

                                                                                                                                                                          type PredicateDialer

                                                                                                                                                                          type PredicateDialer struct {
                                                                                                                                                                          	Config comm.ClientConfig
                                                                                                                                                                          	// contains filtered or unexported fields

                                                                                                                                                                            PredicateDialer creates gRPC connections that are only established if the given predicate is fulfilled

                                                                                                                                                                            func (*PredicateDialer) Dial

                                                                                                                                                                            func (dialer *PredicateDialer) Dial(address string, verifyFunc RemoteVerifier) (*grpc.ClientConn, error)

                                                                                                                                                                              Dial creates a new gRPC connection that can only be established, if the remote node's certificate chain satisfy verifyFunc

                                                                                                                                                                              func (*PredicateDialer) UpdateRootCAs

                                                                                                                                                                              func (dialer *PredicateDialer) UpdateRootCAs(serverRootCAs [][]byte)

                                                                                                                                                                              type PullerConfig

                                                                                                                                                                              type PullerConfig struct {
                                                                                                                                                                              	TLSKey              []byte
                                                                                                                                                                              	TLSCert             []byte
                                                                                                                                                                              	Timeout             time.Duration
                                                                                                                                                                              	Signer              identity.SignerSerializer
                                                                                                                                                                              	Channel             string
                                                                                                                                                                              	MaxTotalBufferBytes int

                                                                                                                                                                                PullerConfig configures a BlockPuller.

                                                                                                                                                                                func PullerConfigFromTopLevelConfig

                                                                                                                                                                                func PullerConfigFromTopLevelConfig(
                                                                                                                                                                                	systemChannel string,
                                                                                                                                                                                	conf *localconfig.TopLevel,
                                                                                                                                                                                	tlsCert []byte,
                                                                                                                                                                                	signer identity.SignerSerializer,
                                                                                                                                                                                ) PullerConfig

                                                                                                                                                                                  PullerConfigFromTopLevelConfig creates a PullerConfig from a TopLevel config, and from a signer and TLS key cert pair. The PullerConfig's channel is initialized to be the system channel.

                                                                                                                                                                                  type RPC

                                                                                                                                                                                  type RPC struct {
                                                                                                                                                                                  	Logger  *flogging.FabricLogger
                                                                                                                                                                                  	Timeout time.Duration
                                                                                                                                                                                  	Channel string
                                                                                                                                                                                  	Comm    Communicator
                                                                                                                                                                                  	StreamsByType map[OperationType]map[uint64]*Stream
                                                                                                                                                                                  	// contains filtered or unexported fields

                                                                                                                                                                                    RPC performs remote procedure calls to remote cluster nodes.

                                                                                                                                                                                    func (*RPC) SendConsensus

                                                                                                                                                                                    func (s *RPC) SendConsensus(destination uint64, msg *orderer.ConsensusRequest) error

                                                                                                                                                                                      SendConsensus passes the given ConsensusRequest message to the raft.Node instance.

                                                                                                                                                                                      func (*RPC) SendSubmit

                                                                                                                                                                                      func (s *RPC) SendSubmit(destination uint64, request *orderer.SubmitRequest) error

                                                                                                                                                                                        SendSubmit sends a SubmitRequest to the given destination node.

                                                                                                                                                                                        type RemoteContext

                                                                                                                                                                                        type RemoteContext struct {
                                                                                                                                                                                        	Metrics      *Metrics
                                                                                                                                                                                        	Channel      string
                                                                                                                                                                                        	SendBuffSize int
                                                                                                                                                                                        	Logger *flogging.FabricLogger
                                                                                                                                                                                        	Client    orderer.ClusterClient
                                                                                                                                                                                        	ProbeConn func(conn *grpc.ClientConn) error
                                                                                                                                                                                        	// contains filtered or unexported fields

                                                                                                                                                                                          RemoteContext interacts with remote cluster nodes. Every call can be aborted via call to Abort()

                                                                                                                                                                                          func (*RemoteContext) Abort

                                                                                                                                                                                          func (rc *RemoteContext) Abort()

                                                                                                                                                                                            Abort aborts the contexts the RemoteContext uses, thus effectively causes all operations that use this RemoteContext to terminate.

                                                                                                                                                                                            func (*RemoteContext) NewStream

                                                                                                                                                                                            func (rc *RemoteContext) NewStream(timeout time.Duration) (*Stream, error)

                                                                                                                                                                                              NewStream creates a new stream. It is not thread safe, and Send() or Recv() block only until the timeout expires.

                                                                                                                                                                                              type RemoteNode

                                                                                                                                                                                              type RemoteNode struct {
                                                                                                                                                                                              	// ID is unique among all members, and cannot be 0.
                                                                                                                                                                                              	ID uint64
                                                                                                                                                                                              	// Endpoint is the endpoint of the node, denoted in %s:%d format
                                                                                                                                                                                              	Endpoint string
                                                                                                                                                                                              	// ServerTLSCert is the DER encoded TLS server certificate of the node
                                                                                                                                                                                              	ServerTLSCert []byte
                                                                                                                                                                                              	// ClientTLSCert is the DER encoded TLS client certificate of the node
                                                                                                                                                                                              	ClientTLSCert []byte

                                                                                                                                                                                                RemoteNode represents a cluster member

                                                                                                                                                                                                func (RemoteNode) String

                                                                                                                                                                                                func (rm RemoteNode) String() string

                                                                                                                                                                                                  String returns a string representation of this RemoteNode

                                                                                                                                                                                                  type RemoteVerifier

                                                                                                                                                                                                  type RemoteVerifier func(rawCerts [][]byte, verifiedChains [][]*x509.Certificate) error

                                                                                                                                                                                                    RemoteVerifier verifies the connection to the remote host

                                                                                                                                                                                                    type Replicator

                                                                                                                                                                                                    type Replicator struct {
                                                                                                                                                                                                    	DoNotPanicIfClusterNotReachable bool
                                                                                                                                                                                                    	Filter                          ChannelPredicate
                                                                                                                                                                                                    	SystemChannel                   string
                                                                                                                                                                                                    	ChannelLister                   ChannelLister
                                                                                                                                                                                                    	Logger                          *flogging.FabricLogger
                                                                                                                                                                                                    	Puller                          *BlockPuller
                                                                                                                                                                                                    	BootBlock                       *common.Block
                                                                                                                                                                                                    	AmIPartOfChannel                SelfMembershipPredicate
                                                                                                                                                                                                    	LedgerFactory                   LedgerFactory

                                                                                                                                                                                                      Replicator replicates chains

                                                                                                                                                                                                      func (*Replicator) IsReplicationNeeded

                                                                                                                                                                                                      func (r *Replicator) IsReplicationNeeded() (bool, error)

                                                                                                                                                                                                        IsReplicationNeeded returns whether replication is needed, or the cluster node can resume standard boot flow.

                                                                                                                                                                                                        func (*Replicator) PullChannel

                                                                                                                                                                                                        func (r *Replicator) PullChannel(channel string) error

                                                                                                                                                                                                          PullChannel pulls the given channel from some orderer, and commits it to the ledger.

                                                                                                                                                                                                          func (*Replicator) ReplicateChains

                                                                                                                                                                                                          func (r *Replicator) ReplicateChains() []string

                                                                                                                                                                                                            ReplicateChains pulls chains and commits them. Returns the names of the chains replicated successfully.

                                                                                                                                                                                                            type SecureDialer

                                                                                                                                                                                                            type SecureDialer interface {
                                                                                                                                                                                                            	Dial(address string, verifyFunc RemoteVerifier) (*grpc.ClientConn, error)

                                                                                                                                                                                                              SecureDialer connects to a remote address

                                                                                                                                                                                                              type SelfMembershipPredicate

                                                                                                                                                                                                              type SelfMembershipPredicate func(configBlock *common.Block) error

                                                                                                                                                                                                                SelfMembershipPredicate determines whether the caller is found in the given config block

                                                                                                                                                                                                                type Service

                                                                                                                                                                                                                type Service struct {
                                                                                                                                                                                                                	StreamCountReporter              *StreamCountReporter
                                                                                                                                                                                                                	Dispatcher                       Dispatcher
                                                                                                                                                                                                                	Logger                           *flogging.FabricLogger
                                                                                                                                                                                                                	StepLogger                       *flogging.FabricLogger
                                                                                                                                                                                                                	MinimumExpirationWarningInterval time.Duration
                                                                                                                                                                                                                	CertExpWarningThreshold          time.Duration

                                                                                                                                                                                                                  Service defines the raft Service

                                                                                                                                                                                                                  func (*Service) Step

                                                                                                                                                                                                                  func (s *Service) Step(stream orderer.Cluster_StepServer) error

                                                                                                                                                                                                                    Step passes an implementation-specific message to another cluster member.

                                                                                                                                                                                                                    type StandardDialer

                                                                                                                                                                                                                    type StandardDialer struct {
                                                                                                                                                                                                                    	Config comm.ClientConfig

                                                                                                                                                                                                                      StandardDialer wraps an ClientConfig, and provides a means to connect according to given EndpointCriteria.

                                                                                                                                                                                                                      func (*StandardDialer) Dial

                                                                                                                                                                                                                      func (dialer *StandardDialer) Dial(endpointCriteria EndpointCriteria) (*grpc.ClientConn, error)

                                                                                                                                                                                                                        Dial dials an address according to the given EndpointCriteria

                                                                                                                                                                                                                        type StepClient

                                                                                                                                                                                                                        type StepClient interface {
                                                                                                                                                                                                                        	Send(*orderer.StepRequest) error
                                                                                                                                                                                                                        	Recv() (*orderer.StepResponse, error)

                                                                                                                                                                                                                          StepClient defines a client that sends and receives Step requests and responses.

                                                                                                                                                                                                                          type StepStream

                                                                                                                                                                                                                          type StepStream interface {
                                                                                                                                                                                                                          	Send(response *orderer.StepResponse) error
                                                                                                                                                                                                                          	Recv() (*orderer.StepRequest, error)

                                                                                                                                                                                                                            StepStream defines the gRPC stream for sending transactions, and receiving corresponding responses

                                                                                                                                                                                                                            type Stream

                                                                                                                                                                                                                            type Stream struct {
                                                                                                                                                                                                                            	ID       uint64
                                                                                                                                                                                                                            	Channel  string
                                                                                                                                                                                                                            	NodeName string
                                                                                                                                                                                                                            	Endpoint string
                                                                                                                                                                                                                            	Logger   *flogging.FabricLogger
                                                                                                                                                                                                                            	Timeout  time.Duration
                                                                                                                                                                                                                            	Cancel func(error)
                                                                                                                                                                                                                            	// contains filtered or unexported fields

                                                                                                                                                                                                                              Stream is used to send/receive messages to/from the remote cluster member.

                                                                                                                                                                                                                              func (*Stream) Canceled

                                                                                                                                                                                                                              func (stream *Stream) Canceled() bool

                                                                                                                                                                                                                                Canceled returns whether the stream was canceled.

                                                                                                                                                                                                                                func (*Stream) Recv

                                                                                                                                                                                                                                func (stream *Stream) Recv() (*orderer.StepResponse, error)

                                                                                                                                                                                                                                  Recv receives a message from a remote cluster member.

                                                                                                                                                                                                                                  func (*Stream) Send

                                                                                                                                                                                                                                  func (stream *Stream) Send(request *orderer.StepRequest) error

                                                                                                                                                                                                                                    Send sends the given request to the remote cluster member.

                                                                                                                                                                                                                                    type StreamCountReporter

                                                                                                                                                                                                                                    type StreamCountReporter struct {
                                                                                                                                                                                                                                    	Metrics *Metrics
                                                                                                                                                                                                                                    	// contains filtered or unexported fields

                                                                                                                                                                                                                                      StreamCountReporter reports the number of streams currently connected to this node

                                                                                                                                                                                                                                      func (*StreamCountReporter) Decrement

                                                                                                                                                                                                                                      func (scr *StreamCountReporter) Decrement()

                                                                                                                                                                                                                                      func (*StreamCountReporter) Increment

                                                                                                                                                                                                                                      func (scr *StreamCountReporter) Increment()

                                                                                                                                                                                                                                      type StreamOperation

                                                                                                                                                                                                                                      type StreamOperation func() (*orderer.StepResponse, error)

                                                                                                                                                                                                                                        StreamOperation denotes an operation done by a stream, such a Send or Receive.

                                                                                                                                                                                                                                        type StringSet

                                                                                                                                                                                                                                        type StringSet map[string]struct{}

                                                                                                                                                                                                                                          StringSet is a set of strings

                                                                                                                                                                                                                                          type Stub

                                                                                                                                                                                                                                          type Stub struct {
                                                                                                                                                                                                                                          	// contains filtered or unexported fields

                                                                                                                                                                                                                                            Stub holds all information about the remote node, including the RemoteContext for it, and serializes some operations on it.

                                                                                                                                                                                                                                            func (*Stub) Activate

                                                                                                                                                                                                                                            func (stub *Stub) Activate(createRemoteContext func() (*RemoteContext, error)) error

                                                                                                                                                                                                                                              Activate creates a remote context with the given function callback in an atomic manner - if two parallel invocations are invoked on this Stub, only a single invocation of createRemoteStub takes place.

                                                                                                                                                                                                                                              func (*Stub) Active

                                                                                                                                                                                                                                              func (stub *Stub) Active() bool

                                                                                                                                                                                                                                                Active returns whether the Stub is active or not

                                                                                                                                                                                                                                                func (*Stub) Deactivate

                                                                                                                                                                                                                                                func (stub *Stub) Deactivate()

                                                                                                                                                                                                                                                  Deactivate deactivates the Stub and ceases all communication operations invoked on it.

                                                                                                                                                                                                                                                  type VerificationRegistry

                                                                                                                                                                                                                                                  type VerificationRegistry struct {
                                                                                                                                                                                                                                                  	LoadVerifier       func(chain string) BlockVerifier
                                                                                                                                                                                                                                                  	Logger             *flogging.FabricLogger
                                                                                                                                                                                                                                                  	VerifierFactory    VerifierFactory
                                                                                                                                                                                                                                                  	VerifiersByChannel map[string]BlockVerifier

                                                                                                                                                                                                                                                    VerificationRegistry registers verifiers and retrieves them.

                                                                                                                                                                                                                                                    func (*VerificationRegistry) BlockCommitted

                                                                                                                                                                                                                                                    func (vr *VerificationRegistry) BlockCommitted(block *common.Block, channel string)

                                                                                                                                                                                                                                                      BlockCommitted notifies the VerificationRegistry upon a block commit, which may trigger a registration of a verifier out of the block in case the block is a config block.

                                                                                                                                                                                                                                                      func (*VerificationRegistry) RegisterVerifier

                                                                                                                                                                                                                                                      func (vr *VerificationRegistry) RegisterVerifier(chain string)

                                                                                                                                                                                                                                                        RegisterVerifier adds a verifier into the registry if applicable.

                                                                                                                                                                                                                                                        func (*VerificationRegistry) RetrieveVerifier

                                                                                                                                                                                                                                                        func (vr *VerificationRegistry) RetrieveVerifier(channel string) BlockVerifier

                                                                                                                                                                                                                                                          RetrieveVerifier returns a BlockVerifier for the given channel, or nil if not found.

                                                                                                                                                                                                                                                          type VerifierFactory

                                                                                                                                                                                                                                                          type VerifierFactory interface {
                                                                                                                                                                                                                                                          	// VerifierFromConfig creates a BlockVerifier from the given configuration.
                                                                                                                                                                                                                                                          	VerifierFromConfig(configuration *common.ConfigEnvelope, channel string) (BlockVerifier, error)

                                                                                                                                                                                                                                                            VerifierFactory creates BlockVerifiers.

                                                                                                                                                                                                                                                            type VerifierRetriever

                                                                                                                                                                                                                                                            type VerifierRetriever interface {
                                                                                                                                                                                                                                                            	// RetrieveVerifier retrieves a BlockVerifier for the given channel.
                                                                                                                                                                                                                                                            	RetrieveVerifier(channel string) BlockVerifier

                                                                                                                                                                                                                                                              VerifierRetriever retrieves BlockVerifiers for channels.


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