cluster

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README

Proto.Actor Cluster - Virtual Actors (Alpha)

Massively distributed actors for GO

Proto.Actor supports the classic actor model also found in Erlang and Akka.
Our cluster support however uses a different approach, Virtual Actor Model.

This is a model where each actor appears to always exist. There is no lifecycle as in the classic actor model. You get a reference to the actor by asking for it's ID.

e.g.

hello := shared.GetHelloGrain("abc")
res := hello.SayHello(&shared.HelloRequest{Name: "Proto.Actor"})

This will ask the cluster where the 'abc' actor is located. If it does not yet exist, it will be created for you.

See Microsoft Orleans for more info about the Virtual Actor Model: http://dotnet.github.io/orleans/

How to

Protobuf IDL Definition

Start by defining your messages and grain contracts. You do this by using Protobuf IDL files.

Here is the definition from the /examples/cluster/shared example

syntax = "proto3";
package shared;

message HelloRequest {
  string name = 1;
}

message HelloResponse {
  string message = 1;
}

message AddRequest {
  double a = 1;
  double b = 2;
}

message AddResponse {
  double result = 1;
}

service Hello {
  rpc SayHello (HelloRequest) returns (HelloResponse) {} 
  rpc Add(AddRequest) returns (AddResponse) {}
}

Once you have this, you can generate your code using the protobuf protoc compiler.

Windows

#generate messages
protoc -I=. -I=%GOPATH%\src --gogoslick_out=. protos.proto
#generate grains 
protoc -I=. -I=%GOPATH%\src --gorleans_out=. protos.proto

Implementing

Once the messages and contracts have been generated, you can start implementing your own business logic. This is essentially a type which is powered by a Proto.Actor actor behind the scenes.

package shared

// a Go struct implementing the Hello interface
type hello struct {
}

func (*hello) SayHello(r *HelloRequest) *HelloResponse {
	return &HelloResponse{Message: "hello " + r.Name}
}

func (*hello) Add(r *AddRequest) *AddResponse {
	return &AddResponse{Result: r.A + r.B}
}

// Register what implementation Proto.Actor should use when 
// creating actors for a certain grain type.
func init() {
	// apply DI and setup logic
	HelloFactory(func() Hello { return &hello{} })
}

Seed nodes

func main() {
    cluster.Start("127.0.0.1:7711")
    console.ReadLine()
}

Member nodes

func main() {
	cluster.Start("127.0.0.1:0", "127.0.0.1:7711")

    // get a reference to the virtual actor called "abc" of type Hello
	hello := shared.GetHelloGrain("abc")
	res := hello.SayHello(&shared.HelloRequest{Name: "Proto.Actor"})
	log.Printf("Message from grain %v", res.Message)
}

FAQ

Can I use Proto.Actor Cluster in production?

The Proto.Actor Cluster support is in alpha version, thus not production ready.

What about performance?

Proto.Actor Remoting is able to pass 1 million+ messages per second on a standard dev machine. This is the same infrastructure used in Proto.Actor cluster. Proto.Actor Cluster however uses an RPC API, meaning it is Request/Response in nature. If you wait for a response for each call, the throughput will ofcourse be a lot less. Async Fire and forget for performance, Request/Response for simplicity.

Documentation

Index

Constants

View Source 
const (
	TopologyKey   string = "topology"
	HearthbeatKey string = "heathbeat"
)
View Source 
const DefaultGossipActorName string = "gossip"

Variables

View Source 
var (
	IdentityHandoverAck_State_name = map[int32]string{
		0: "processed",
		1: "incorrect_topology",
	}
	IdentityHandoverAck_State_value = map[string]int32{
		"processed":          0,
		"incorrect_topology": 1,
	}
)

Enum value maps for IdentityHandoverAck_State.

View Source 
var File_cluster_proto protoreflect.FileDescriptor
View Source 
var File_gossip_proto protoreflect.FileDescriptor
View Source 
var File_grain_proto protoreflect.FileDescriptor

Functions

func MembersToMap 

func MembersToMap(members Members) map[string]*Member

func NewGossipConsensusHandler 

func NewGossipConsensusHandler() *gossipConsensusHandler

func RemotePlacementActor 

func RemotePlacementActor(address string) *actor.PID

RemotePlacementActor returns the PID of the remote placement actor

func SetClusterIdentity 

func SetClusterIdentity(ctx actor.ExtensionContext, ci *ClusterIdentity)

func SetLogLevel 

func SetLogLevel(level log.Level)

SetLogLevel sets the log level for the logger.

SetLogLevel is safe to call concurrently

func SortMembers 

func SortMembers(members Members)

func TopologyHash 

func TopologyHash(members Members) uint64

func WithClusterIdentity 

func WithClusterIdentity(props *actor.Props, ci *ClusterIdentity) *actor.Props

Types

type ActivatedKind 

type ActivatedKind struct {
	Kind     string
	Props    *actor.Props
	Strategy MemberStrategy
	// contains filtered or unexported fields
}

func (*ActivatedKind) Dev 

func (ak *ActivatedKind) Dev()

func (*ActivatedKind) Inc 

func (ak *ActivatedKind) Inc()

type Activation 

type Activation struct {
	Pid             *actor.PID       `protobuf:"bytes,1,opt,name=pid,proto3" json:"pid,omitempty"`
	ClusterIdentity *ClusterIdentity `protobuf:"bytes,2,opt,name=cluster_identity,json=clusterIdentity,proto3" json:"cluster_identity,omitempty"`
	// contains filtered or unexported fields
}

func (*Activation) Descriptor deprecated 

func (*Activation) Descriptor() ([]byte, []int)

Deprecated: Use Activation.ProtoReflect.Descriptor instead.

func (*Activation) GetClusterIdentity 

func (x *Activation) GetClusterIdentity() *ClusterIdentity

func (*Activation) GetPid 

func (x *Activation) GetPid() *actor.PID

func (*Activation) ProtoMessage 

func (*Activation) ProtoMessage()

func (*Activation) ProtoReflect 

func (x *Activation) ProtoReflect() protoreflect.Message

func (*Activation) Reset 

func (x *Activation) Reset()

func (*Activation) String 

func (x *Activation) String() string

type ActivationRequest 

type ActivationRequest struct {
	ClusterIdentity *ClusterIdentity `protobuf:"bytes,1,opt,name=cluster_identity,json=clusterIdentity,proto3" json:"cluster_identity,omitempty"`
	RequestId       string           `protobuf:"bytes,2,opt,name=request_id,json=requestId,proto3" json:"request_id,omitempty"`
	TopologyHash    uint64           `protobuf:"varint,3,opt,name=topology_hash,json=topologyHash,proto3" json:"topology_hash,omitempty"`
	// contains filtered or unexported fields
}

func (*ActivationRequest) Descriptor deprecated 

func (*ActivationRequest) Descriptor() ([]byte, []int)

Deprecated: Use ActivationRequest.ProtoReflect.Descriptor instead.

func (*ActivationRequest) GetClusterIdentity 

func (x *ActivationRequest) GetClusterIdentity() *ClusterIdentity

func (*ActivationRequest) GetRequestId 

func (x *ActivationRequest) GetRequestId() string

func (*ActivationRequest) GetTopologyHash 

func (x *ActivationRequest) GetTopologyHash() uint64

func (*ActivationRequest) ProtoMessage 

func (*ActivationRequest) ProtoMessage()

func (*ActivationRequest) ProtoReflect 

func (x *ActivationRequest) ProtoReflect() protoreflect.Message

func (*ActivationRequest) Reset 

func (x *ActivationRequest) Reset()

func (*ActivationRequest) String 

func (x *ActivationRequest) String() string

type ActivationResponse 

type ActivationResponse struct {
	Pid          *actor.PID `protobuf:"bytes,1,opt,name=pid,proto3" json:"pid,omitempty"`
	Failed       bool       `protobuf:"varint,2,opt,name=failed,proto3" json:"failed,omitempty"`
	TopologyHash uint64     `protobuf:"varint,3,opt,name=topology_hash,json=topologyHash,proto3" json:"topology_hash,omitempty"`
	// contains filtered or unexported fields
}

func (*ActivationResponse) Descriptor deprecated 

func (*ActivationResponse) Descriptor() ([]byte, []int)

Deprecated: Use ActivationResponse.ProtoReflect.Descriptor instead.

func (*ActivationResponse) GetFailed 

func (x *ActivationResponse) GetFailed() bool

func (*ActivationResponse) GetPid 

func (x *ActivationResponse) GetPid() *actor.PID

func (*ActivationResponse) GetTopologyHash 

func (x *ActivationResponse) GetTopologyHash() uint64

func (*ActivationResponse) ProtoMessage 

func (*ActivationResponse) ProtoMessage()

func (*ActivationResponse) ProtoReflect 

func (x *ActivationResponse) ProtoReflect() protoreflect.Message

func (*ActivationResponse) Reset 

func (x *ActivationResponse) Reset()

func (*ActivationResponse) String 

func (x *ActivationResponse) String() string

type ActivationTerminated 

type ActivationTerminated struct {
	Pid             *actor.PID       `protobuf:"bytes,1,opt,name=pid,proto3" json:"pid,omitempty"`
	ClusterIdentity *ClusterIdentity `protobuf:"bytes,2,opt,name=cluster_identity,json=clusterIdentity,proto3" json:"cluster_identity,omitempty"`
	// contains filtered or unexported fields
}

Terminated, removed from lookup

func (*ActivationTerminated) Descriptor deprecated 

func (*ActivationTerminated) Descriptor() ([]byte, []int)

Deprecated: Use ActivationTerminated.ProtoReflect.Descriptor instead.

func (*ActivationTerminated) GetClusterIdentity 

func (x *ActivationTerminated) GetClusterIdentity() *ClusterIdentity

func (*ActivationTerminated) GetPid 

func (x *ActivationTerminated) GetPid() *actor.PID

func (*ActivationTerminated) ProtoMessage 

func (*ActivationTerminated) ProtoMessage()

func (*ActivationTerminated) ProtoReflect 

func (x *ActivationTerminated) ProtoReflect() protoreflect.Message

func (*ActivationTerminated) Reset 

func (x *ActivationTerminated) Reset()

func (*ActivationTerminated) String 

func (x *ActivationTerminated) String() string

type ActivationTerminating 

type ActivationTerminating struct {
	Pid             *actor.PID       `protobuf:"bytes,1,opt,name=pid,proto3" json:"pid,omitempty"`
	ClusterIdentity *ClusterIdentity `protobuf:"bytes,2,opt,name=cluster_identity,json=clusterIdentity,proto3" json:"cluster_identity,omitempty"`
	// contains filtered or unexported fields
}

Started terminating, not yet removed from IIdentityLookup

func (*ActivationTerminating) Descriptor deprecated 

func (*ActivationTerminating) Descriptor() ([]byte, []int)

Deprecated: Use ActivationTerminating.ProtoReflect.Descriptor instead.

func (*ActivationTerminating) GetClusterIdentity 

func (x *ActivationTerminating) GetClusterIdentity() *ClusterIdentity

func (*ActivationTerminating) GetPid 

func (x *ActivationTerminating) GetPid() *actor.PID

func (*ActivationTerminating) ProtoMessage 

func (*ActivationTerminating) ProtoMessage()

func (*ActivationTerminating) ProtoReflect 

func (x *ActivationTerminating) ProtoReflect() protoreflect.Message

func (*ActivationTerminating) Reset 

func (x *ActivationTerminating) Reset()

func (*ActivationTerminating) String 

func (x *ActivationTerminating) String() string

type ActorStatistics 

type ActorStatistics struct {
	ActorCount map[string]int64 `` /* 180-byte string literal not displayed */
	// contains filtered or unexported fields
}

func (*ActorStatistics) Descriptor deprecated 

func (*ActorStatistics) Descriptor() ([]byte, []int)

Deprecated: Use ActorStatistics.ProtoReflect.Descriptor instead.

func (*ActorStatistics) GetActorCount 

func (x *ActorStatistics) GetActorCount() map[string]int64

func (*ActorStatistics) ProtoMessage 

func (*ActorStatistics) ProtoMessage()

func (*ActorStatistics) ProtoReflect 

func (x *ActorStatistics) ProtoReflect() protoreflect.Message

func (*ActorStatistics) Reset 

func (x *ActorStatistics) Reset()

func (*ActorStatistics) String 

func (x *ActorStatistics) String() string

type AddConsensusCheck 

type AddConsensusCheck struct {
	ID    string
	Check *ConsensusCheck
}

func NewAddConsensusCheck 

func NewAddConsensusCheck(id string, check *ConsensusCheck) AddConsensusCheck

type Cluster 

type Cluster struct {
	ActorSystem    *actor.ActorSystem
	Config         *Config
	Gossip         Gossiper
	Remote         *remote.Remote
	PidCache       *PidCacheValue
	MemberList     *MemberList
	IdentityLookup IdentityLookup
	// contains filtered or unexported fields
}

func GetCluster 

func GetCluster(actorSystem *actor.ActorSystem) *Cluster

func New 

func New(actorSystem *actor.ActorSystem, config *Config) *Cluster

func (*Cluster) Call 

func (c *Cluster) Call(name string, kind string, msg interface{}, opts ...GrainCallOption) (interface{}, error)

Call is a wrap of context.RequestFuture with retries.

func (*Cluster) ExtensionID 

func (c *Cluster) ExtensionID() extensions.ExtensionID

func (*Cluster) Get 

func (c *Cluster) Get(identity string, kind string) *actor.PID

func (*Cluster) GetBlockedMembers 

func (c *Cluster) GetBlockedMembers() set.Set[string]

func (*Cluster) GetClusterKind 

func (c *Cluster) GetClusterKind(kind string) *ActivatedKind

func (*Cluster) GetClusterKinds 

func (c *Cluster) GetClusterKinds() []string

func (*Cluster) Request 

func (c *Cluster) Request(identity string, kind string, message interface{}) (interface{}, error)

func (*Cluster) Shutdown 

func (c *Cluster) Shutdown(graceful bool)

func (*Cluster) StartClient 

func (c *Cluster) StartClient()

func (*Cluster) StartMember 

func (c *Cluster) StartMember()

func (*Cluster) TryGetClusterKind 

func (c *Cluster) TryGetClusterKind(kind string) (*ActivatedKind, bool)

type ClusterContextConfig 

type ClusterContextConfig struct {
	ActorRequestTimeout                          time.Duration
	RequestsLogThrottlePeriod                    time.Duration
	MaxNumberOfEventsInRequestLogThrottledPeriod int
	RetryAction                                  func(int) int
	// contains filtered or unexported fields
}

ClusterContextConfig is used to configure cluster context parameters

func NewDefaultClusterContextConfig 

func NewDefaultClusterContextConfig() *ClusterContextConfig

NewDefaultClusterContextConfig creates a mew ClusterContextConfig with default values and returns a pointer to its memory address

type ClusterIdentity 

type ClusterIdentity struct {
	Identity string `protobuf:"bytes,1,opt,name=identity,proto3" json:"identity,omitempty"`
	Kind     string `protobuf:"bytes,2,opt,name=kind,proto3" json:"kind,omitempty"`
	// contains filtered or unexported fields
}

func GetClusterIdentity 

func GetClusterIdentity(ctx actor.ExtensionContext) *ClusterIdentity

func NewClusterIdentity 

func NewClusterIdentity(identity string, kind string) *ClusterIdentity

func (*ClusterIdentity) AsKey 

func (ci *ClusterIdentity) AsKey() string

func (*ClusterIdentity) Descriptor deprecated 

func (*ClusterIdentity) Descriptor() ([]byte, []int)

Deprecated: Use ClusterIdentity.ProtoReflect.Descriptor instead.

func (*ClusterIdentity) ExtensionID 

func (ci *ClusterIdentity) ExtensionID() ctxext.ContextExtensionID

func (*ClusterIdentity) GetIdentity 

func (x *ClusterIdentity) GetIdentity() string

func (*ClusterIdentity) GetKind 

func (x *ClusterIdentity) GetKind() string

func (*ClusterIdentity) ProtoMessage 

func (*ClusterIdentity) ProtoMessage()

func (*ClusterIdentity) ProtoReflect 

func (x *ClusterIdentity) ProtoReflect() protoreflect.Message

func (*ClusterIdentity) Reset 

func (x *ClusterIdentity) Reset()

func (*ClusterIdentity) String 

func (x *ClusterIdentity) String() string

func (*ClusterIdentity) ToShortString 

func (ci *ClusterIdentity) ToShortString() string

remove

type ClusterInit 

type ClusterInit struct {
	Identity *ClusterIdentity
	Cluster  *Cluster
}

type ClusterProvider 

type ClusterProvider interface {
	StartMember(cluster *Cluster) error
	StartClient(cluster *Cluster) error
	Shutdown(graceful bool) error
}

type ClusterTopology 

type ClusterTopology struct {
	TopologyHash uint64    `protobuf:"varint,1,opt,name=topology_hash,json=topologyHash,proto3" json:"topology_hash,omitempty"`
	Members      []*Member `protobuf:"bytes,2,rep,name=members,proto3" json:"members,omitempty"`
	Joined       []*Member `protobuf:"bytes,3,rep,name=joined,proto3" json:"joined,omitempty"`
	Left         []*Member `protobuf:"bytes,4,rep,name=left,proto3" json:"left,omitempty"`
	Blocked      []string  `protobuf:"bytes,5,rep,name=blocked,proto3" json:"blocked,omitempty"`
	// contains filtered or unexported fields
}

func (*ClusterTopology) Descriptor deprecated 

func (*ClusterTopology) Descriptor() ([]byte, []int)

Deprecated: Use ClusterTopology.ProtoReflect.Descriptor instead.

func (*ClusterTopology) GetBlocked 

func (x *ClusterTopology) GetBlocked() []string

func (*ClusterTopology) GetJoined 

func (x *ClusterTopology) GetJoined() []*Member

func (*ClusterTopology) GetLeft 

func (x *ClusterTopology) GetLeft() []*Member

func (*ClusterTopology) GetMembers 

func (x *ClusterTopology) GetMembers() []*Member

func (*ClusterTopology) GetTopologyHash 

func (x *ClusterTopology) GetTopologyHash() uint64

func (*ClusterTopology) ProtoMessage 

func (*ClusterTopology) ProtoMessage()

func (*ClusterTopology) ProtoReflect 

func (x *ClusterTopology) ProtoReflect() protoreflect.Message

func (*ClusterTopology) Reset 

func (x *ClusterTopology) Reset()

func (*ClusterTopology) String 

func (x *ClusterTopology) String() string

type ClusterTopologyNotification 

type ClusterTopologyNotification struct {
	MemberId     string `protobuf:"bytes,1,opt,name=member_id,json=memberId,proto3" json:"member_id,omitempty"`
	TopologyHash uint32 `protobuf:"varint,2,opt,name=topology_hash,json=topologyHash,proto3" json:"topology_hash,omitempty"`
	LeaderId     string `protobuf:"bytes,3,opt,name=leader_id,json=leaderId,proto3" json:"leader_id,omitempty"`
	// contains filtered or unexported fields
}

func (*ClusterTopologyNotification) Descriptor deprecated 

func (*ClusterTopologyNotification) Descriptor() ([]byte, []int)

Deprecated: Use ClusterTopologyNotification.ProtoReflect.Descriptor instead.

func (*ClusterTopologyNotification) GetLeaderId 

func (x *ClusterTopologyNotification) GetLeaderId() string

func (*ClusterTopologyNotification) GetMemberId 

func (x *ClusterTopologyNotification) GetMemberId() string

func (*ClusterTopologyNotification) GetTopologyHash 

func (x *ClusterTopologyNotification) GetTopologyHash() uint32

func (*ClusterTopologyNotification) ProtoMessage 

func (*ClusterTopologyNotification) ProtoMessage()

func (*ClusterTopologyNotification) ProtoReflect 

func (x *ClusterTopologyNotification) ProtoReflect() protoreflect.Message

func (*ClusterTopologyNotification) Reset 

func (x *ClusterTopologyNotification) Reset()

func (*ClusterTopologyNotification) String 

func (x *ClusterTopologyNotification) String() string

type Config 

type Config struct {
	Name                                         string
	Address                                      string
	ClusterProvider                              ClusterProvider
	IdentityLookup                               IdentityLookup
	RemoteConfig                                 *remote.Config
	RequestTimeoutTime                           time.Duration
	RequestsLogThrottlePeriod                    time.Duration
	MaxNumberOfEventsInRequestLogThrottledPeriod int
	ClusterContextProducer                       ContextProducer
	MemberStrategyBuilder                        func(cluster *Cluster, kind string) MemberStrategy
	Kinds                                        map[string]*Kind
	TimeoutTime                                  time.Duration
	GossipInterval                               time.Duration
	GossipRequestTimeout                         time.Duration
	GossipFanOut                                 int
	GossipMaxSend                                int
}

func Configure 

func Configure(clusterName string, clusterProvider ClusterProvider, identityLookup IdentityLookup, remoteConfig *remote.Config, options ...ConfigOption) *Config

func (*Config) ToClusterContextConfig 

func (c *Config) ToClusterContextConfig() *ClusterContextConfig

ToClusterContextConfig converts this cluster Config Context parameters into a valid ClusterContextConfig value and returns a pointer to its memory

type ConfigOption 

type ConfigOption func(config *Config)

func WithClusterContextProducer 

func WithClusterContextProducer(producer ContextProducer) ConfigOption

WithClusterContextProducer sets the cluster context producer.

func WithKinds 

func WithKinds(kinds ...*Kind) ConfigOption

func WithMaxNumberOfEventsInRequestLogThrottlePeriod 

func WithMaxNumberOfEventsInRequestLogThrottlePeriod(maxNumber int) ConfigOption

WithMaxNumberOfEventsInRequestLogThrottlePeriod sets the max number of events in request log throttled period.

func WithRequestTimeout 

func WithRequestTimeout(t time.Duration) ConfigOption

WithRequestTimeout sets the request timeout.

func WithRequestsLogThrottlePeriod 

func WithRequestsLogThrottlePeriod(period time.Duration) ConfigOption

WithRequestsLogThrottlePeriod sets the requests log throttle period.

type ConsensusCheck 

type ConsensusCheck struct {
	// contains filtered or unexported fields
}

data structure helpful to store consensus check information and behavior.

func NewConsensusCheck 

func NewConsensusCheck(affectedKeys []string, check GossipUpdater) ConsensusCheck

creates a new ConsensusCheck value with the given data and return it back.

type ConsensusCheckBuilder 

type ConsensusCheckBuilder struct {
	// contains filtered or unexported fields
}

func NewConsensusCheckBuilder 

func NewConsensusCheckBuilder(key string, getValue func(*anypb.Any) interface{}) *ConsensusCheckBuilder

func (*ConsensusCheckBuilder) AffectedKeys 

func (ccb *ConsensusCheckBuilder) AffectedKeys() []string

func (*ConsensusCheckBuilder) Build 

func (ccb *ConsensusCheckBuilder) Build() (ConsensusHandler, *ConsensusCheck)

Build builds a new ConsensusHandler and ConsensusCheck values and returns pointers to them

func (*ConsensusCheckBuilder) Check 

func (ccb *ConsensusCheckBuilder) Check() ConsensusChecker

func (*ConsensusCheckBuilder) HasConsensus 

func (ccb *ConsensusCheckBuilder) HasConsensus(memberValues []*consensusMemberValue) (bool, uint64)

func (*ConsensusCheckBuilder) MapToValue 

func (ccb *ConsensusCheckBuilder) MapToValue(valueTuple *consensusValue) func(string, *GossipMemberState) (string, string, uint64)

type ConsensusCheckDefinition 

type ConsensusCheckDefinition interface {
	Check() *ConsensusCheck
	AffectedKeys() map[string]struct{}
}

type ConsensusChecker 

type ConsensusChecker func(*GossipState, map[string]empty) (bool, interface{})

Customary type used to provide consensus check callbacks of any type note: this is equivalent to (for future go v1.18): 

type ConsensusChecker[T] func(GossipState, map[string]empty) (bool, T)

type ConsensusChecks 

type ConsensusChecks struct {
	// contains filtered or unexported fields
}

acts as a storage of pointers to ConsensusCheck stored by key.

func NewConsensusChecks 

func NewConsensusChecks() *ConsensusChecks

creates a new ConsensusChecks value and returns a pointer to it.

func (*ConsensusChecks) Add 

func (cc *ConsensusChecks) Add(id string, check *ConsensusCheck)

adds a new pointer to a ConsensusCheck value in the storage and registers its affected by keys index.

func (*ConsensusChecks) GetByUpdatedKey 

func (cc *ConsensusChecks) GetByUpdatedKey(key string) []*ConsensusCheck

iterates over all the keys stored in the set (map[string]empty) found in the given key map and populates a slice of pointers to ConsensusCheck values that is returned as a set of ConsensusCheck updated by the given key.

func (*ConsensusChecks) GetByUpdatedKeys 

func (cc *ConsensusChecks) GetByUpdatedKeys(keys []string) []*ConsensusCheck

iterate over all the keys stored in the set (map[string]empty) found in the given key maps and populates a slice of pointers to ConsensusCheck values that is returned as a set of ConsensusCheck updated by the given keys with removed duplicates on it (as it is a "set").

func (*ConsensusChecks) Remove 

func (cc *ConsensusChecks) Remove(id string)

Remove removes the given ConsensusCheck identity from the storage and removes its affected by keys index if needed after cleaning.

type ConsensusHandler 

type ConsensusHandler interface {
	GetID() string
	TryGetConsensus(context.Context) (interface{}, bool)
}

type Context 

type Context interface {
	Request(identity string, kind string, message interface{}, timeout ...time.Duration) (interface{}, error)
}

Context is an interface any cluster context needs to implement

type ContextProducer 

type ContextProducer func(*Cluster) Context

Defines a type to provide DefaultContext configurations / implementations.

type DefaultContext 

type DefaultContext struct {
	// contains filtered or unexported fields
}

Defines a default cluster context hashBytes structure.

func (*DefaultContext) Request 

func (dcc *DefaultContext) Request(identity, kind string, message interface{}, timeout ...time.Duration) (interface{}, error)

type GetGossipStateRequest 

type GetGossipStateRequest struct {
	Key string
}

Used to query the GossipActor about a given key status

func NewGetGossipStateRequest 

func NewGetGossipStateRequest(key string) GetGossipStateRequest

Create a new GetGossipStateRequest value and return it back

type GetGossipStateResponse 

type GetGossipStateResponse struct {
	State map[string]*anypb.Any
}

Used by the GossipActor to send back the status value of a given key

func NewGetGossipStateResponse 

func NewGetGossipStateResponse(state map[string]*anypb.Any) GetGossipStateResponse

type GetPid 

type GetPid struct {
	ClusterIdentity *ClusterIdentity
}

GetPid contains

type Gossip 

type Gossip interface {
	GossipStateStorer
	GossipConsensusChecker
	GossipCore
}

The Gossip interface must be implemented by any value that pretends to participate with-in the Gossip protocol

type GossipActor 

type GossipActor struct {
	// contains filtered or unexported fields
}

Actor used to send gossip messages around

func NewGossipActor 

func NewGossipActor(requestTimeout time.Duration, myID string, getBlockedMembers func() set.Set[string], fanOut int, maxSend int) *GossipActor

Creates a new GossipActor and returns a pointer to its location in the heap

func (*GossipActor) Receive 

func (ga *GossipActor) Receive(ctx actor.Context)

Receive method.

func (*GossipActor) ReceiveState 

func (ga *GossipActor) ReceiveState(remoteState *GossipState, ctx actor.Context)

type GossipConsensusChecker 

type GossipConsensusChecker interface {
	AddConsensusCheck(id string, check *ConsensusCheck)
	RemoveConsensusCheck(id string)
}

This interface must be implemented by any value that wants to add or remove consensus checkers

type GossipCore 

type GossipCore interface {
	UpdateClusterTopology(topology *ClusterTopology)
	ReceiveState(remoteState *GossipState) []*GossipUpdate
	SendState(sendStateToMember LocalStateSender)
	GetMemberStateDelta(targetMemberID string) *MemberStateDelta
}

This interface must be implemented by any value that wants to react to cluster topology events

type GossipDeltaValue 

type GossipDeltaValue struct {
	Entries []*GossipDeltaValue_GossipDeltaEntry `protobuf:"bytes,1,rep,name=entries,proto3" json:"entries,omitempty"`
	// contains filtered or unexported fields
}

represents a value that can be sent in form of a delta change instead of a full value replace

func (*GossipDeltaValue) Descriptor deprecated 

func (*GossipDeltaValue) Descriptor() ([]byte, []int)

Deprecated: Use GossipDeltaValue.ProtoReflect.Descriptor instead.

func (*GossipDeltaValue) GetEntries 

func (x *GossipDeltaValue) GetEntries() []*GossipDeltaValue_GossipDeltaEntry

func (*GossipDeltaValue) ProtoMessage 

func (*GossipDeltaValue) ProtoMessage()

func (*GossipDeltaValue) ProtoReflect 

func (x *GossipDeltaValue) ProtoReflect() protoreflect.Message

func (*GossipDeltaValue) Reset 

func (x *GossipDeltaValue) Reset()

func (*GossipDeltaValue) String 

func (x *GossipDeltaValue) String() string

type GossipDeltaValue_GossipDeltaEntry 

type GossipDeltaValue_GossipDeltaEntry struct {
	SequenceNumber int64  `protobuf:"varint,1,opt,name=sequence_number,json=sequenceNumber,proto3" json:"sequence_number,omitempty"`
	Data           []byte `protobuf:"bytes,2,opt,name=data,proto3" json:"data,omitempty"`
	// contains filtered or unexported fields
}

these are the entries of a delta value this can be seen as an array with data, where each element in the array is tagged with a sequence number

func (*GossipDeltaValue_GossipDeltaEntry) Descriptor deprecated 

func (*GossipDeltaValue_GossipDeltaEntry) Descriptor() ([]byte, []int)

Deprecated: Use GossipDeltaValue_GossipDeltaEntry.ProtoReflect.Descriptor instead.

func (*GossipDeltaValue_GossipDeltaEntry) GetData 

func (x *GossipDeltaValue_GossipDeltaEntry) GetData() []byte

func (*GossipDeltaValue_GossipDeltaEntry) GetSequenceNumber 

func (x *GossipDeltaValue_GossipDeltaEntry) GetSequenceNumber() int64

func (*GossipDeltaValue_GossipDeltaEntry) ProtoMessage 

func (*GossipDeltaValue_GossipDeltaEntry) ProtoMessage()

func (*GossipDeltaValue_GossipDeltaEntry) ProtoReflect 

func (x *GossipDeltaValue_GossipDeltaEntry) ProtoReflect() protoreflect.Message

func (*GossipDeltaValue_GossipDeltaEntry) Reset 

func (x *GossipDeltaValue_GossipDeltaEntry) Reset()

func (*GossipDeltaValue_GossipDeltaEntry) String 

func (x *GossipDeltaValue_GossipDeltaEntry) String() string

type GossipKeyValue 

type GossipKeyValue struct {
	SequenceNumber                 int64      `protobuf:"varint,2,opt,name=sequence_number,json=sequenceNumber,proto3" json:"sequence_number,omitempty"` //version is local to the owner member
	Value                          *anypb.Any `protobuf:"bytes,4,opt,name=value,proto3" json:"value,omitempty"`                                          //value is any format
	LocalTimestampUnixMilliseconds int64      ``                                                                                                         /* 156-byte string literal not displayed */
	// contains filtered or unexported fields
}

a known key might be heartbeat. if we locally tag each entry with a local timestamp this means that we can measure if we have not received a new heartbeat from one member in some time even if we don't know the exact time the heartbeat was issued, due to clock differences. we still know when _we_ as in this node, got this data. and we can measure time from then til now.

if we got a hear-beat from another node, and X seconds pass, we can assume it to be dead

func (*GossipKeyValue) Descriptor deprecated 

func (*GossipKeyValue) Descriptor() ([]byte, []int)

Deprecated: Use GossipKeyValue.ProtoReflect.Descriptor instead.

func (*GossipKeyValue) GetLocalTimestampUnixMilliseconds 

func (x *GossipKeyValue) GetLocalTimestampUnixMilliseconds() int64

func (*GossipKeyValue) GetSequenceNumber 

func (x *GossipKeyValue) GetSequenceNumber() int64

func (*GossipKeyValue) GetValue 

func (x *GossipKeyValue) GetValue() *anypb.Any

func (*GossipKeyValue) ProtoMessage 

func (*GossipKeyValue) ProtoMessage()

func (*GossipKeyValue) ProtoReflect 

func (x *GossipKeyValue) ProtoReflect() protoreflect.Message

func (*GossipKeyValue) Reset 

func (x *GossipKeyValue) Reset()

func (*GossipKeyValue) String 

func (x *GossipKeyValue) String() string

type GossipKeyValues 

type GossipKeyValues = map[string]*GossipKeyValue

type GossipMemberState 

type GossipMemberState = GossipState_GossipMemberState

convenience type alias

type GossipMemberStates 

type GossipMemberStates = map[string]*GossipMemberState

type GossipRequest 

type GossipRequest struct {
	MemberId string       `protobuf:"bytes,2,opt,name=member_id,json=memberId,proto3" json:"member_id,omitempty"`
	State    *GossipState `protobuf:"bytes,1,opt,name=state,proto3" json:"state,omitempty"`
	// contains filtered or unexported fields
}

func (*GossipRequest) Descriptor deprecated 

func (*GossipRequest) Descriptor() ([]byte, []int)

Deprecated: Use GossipRequest.ProtoReflect.Descriptor instead.

func (*GossipRequest) GetMemberId 

func (x *GossipRequest) GetMemberId() string

func (*GossipRequest) GetState 

func (x *GossipRequest) GetState() *GossipState

func (*GossipRequest) ProtoMessage 

func (*GossipRequest) ProtoMessage()

func (*GossipRequest) ProtoReflect 

func (x *GossipRequest) ProtoReflect() protoreflect.Message

func (*GossipRequest) Reset 

func (x *GossipRequest) Reset()

func (*GossipRequest) String 

func (x *GossipRequest) String() string

type GossipResponse 

type GossipResponse struct {
	State *GossipState `protobuf:"bytes,1,opt,name=state,proto3" json:"state,omitempty"`
	// contains filtered or unexported fields
}

Ack a gossip request

func (*GossipResponse) Descriptor deprecated 

func (*GossipResponse) Descriptor() ([]byte, []int)

Deprecated: Use GossipResponse.ProtoReflect.Descriptor instead.

func (*GossipResponse) GetState 

func (x *GossipResponse) GetState() *GossipState

func (*GossipResponse) ProtoMessage 

func (*GossipResponse) ProtoMessage()

func (*GossipResponse) ProtoReflect 

func (x *GossipResponse) ProtoReflect() protoreflect.Message

func (*GossipResponse) Reset 

func (x *GossipResponse) Reset()

func (*GossipResponse) String 

func (x *GossipResponse) String() string

type GossipResponseAck 

type GossipResponseAck struct {
	// contains filtered or unexported fields
}

func (*GossipResponseAck) Descriptor deprecated 

func (*GossipResponseAck) Descriptor() ([]byte, []int)

Deprecated: Use GossipResponseAck.ProtoReflect.Descriptor instead.

func (*GossipResponseAck) ProtoMessage 

func (*GossipResponseAck) ProtoMessage()

func (*GossipResponseAck) ProtoReflect 

func (x *GossipResponseAck) ProtoReflect() protoreflect.Message

func (*GossipResponseAck) Reset 

func (x *GossipResponseAck) Reset()

func (*GossipResponseAck) String 

func (x *GossipResponseAck) String() string

type GossipState 

type GossipState struct {
	Members map[string]*GossipState_GossipMemberState `` /* 155-byte string literal not displayed */
	// contains filtered or unexported fields
}

two GossipState objects can be merged key + member_id gets it's own entry, if collision, highest version is selected

func (*GossipState) Descriptor deprecated 

func (*GossipState) Descriptor() ([]byte, []int)

Deprecated: Use GossipState.ProtoReflect.Descriptor instead.

func (*GossipState) GetMembers 

func (x *GossipState) GetMembers() map[string]*GossipState_GossipMemberState

func (*GossipState) ProtoMessage 

func (*GossipState) ProtoMessage()

func (*GossipState) ProtoReflect 

func (x *GossipState) ProtoReflect() protoreflect.Message

func (*GossipState) Reset 

func (x *GossipState) Reset()

func (*GossipState) String 

func (x *GossipState) String() string

type GossipStateStorer 

type GossipStateStorer interface {
	GetState(key string) map[string]*anypb.Any
	SetState(key string, value proto.Message)
}

This interface must be implemented by any value that. wants to be used as a gossip state storage

type GossipState_GossipMemberState 

type GossipState_GossipMemberState struct {
	Values map[string]*GossipKeyValue `` /* 153-byte string literal not displayed */
	// contains filtered or unexported fields
}

func (*GossipState_GossipMemberState) Descriptor deprecated 

func (*GossipState_GossipMemberState) Descriptor() ([]byte, []int)

Deprecated: Use GossipState_GossipMemberState.ProtoReflect.Descriptor instead.

func (*GossipState_GossipMemberState) GetValues 

func (x *GossipState_GossipMemberState) GetValues() map[string]*GossipKeyValue

func (*GossipState_GossipMemberState) ProtoMessage 

func (*GossipState_GossipMemberState) ProtoMessage()

func (*GossipState_GossipMemberState) ProtoReflect 

func (x *GossipState_GossipMemberState) ProtoReflect() protoreflect.Message

func (*GossipState_GossipMemberState) Reset 

func (x *GossipState_GossipMemberState) Reset()

func (*GossipState_GossipMemberState) String 

func (x *GossipState_GossipMemberState) String() string

type GossipUpdate 

type GossipUpdate struct {
	MemberID, Key string
	Value         *anypb.Any
	SeqNumber     int64
}

Used to update gossip data when a Clustertopology event occurs

type GossipUpdater 

type GossipUpdater func(*GossipState, map[string]empty)

type Gossiper 

type Gossiper struct {
	// The Gossiper Actor Name, defaults to "gossip"
	GossipActorName string
	// contains filtered or unexported fields
}

The Gossiper data structure manages Gossip

func (*Gossiper) GetState 

func (g *Gossiper) GetState(key string) (map[string]*anypb.Any, error)

func (*Gossiper) RegisterConsensusCheck 

func (g *Gossiper) RegisterConsensusCheck(key string, getValue func(*anypb.Any) interface{}) ConsensusHandler

Builds a consensus handler and a consensus checker, send the checker to the Gossip actor and returns the handler back to the caller

func (*Gossiper) SendState 

func (g *Gossiper) SendState()

func (*Gossiper) SetState 

func (g *Gossiper) SetState(key string, value proto.Message)

Sends fire and forget message to update member state

func (*Gossiper) SetStateRequest 

func (g *Gossiper) SetStateRequest(key string, value proto.Message) error

Sends a Request (that blocks) to update member state

func (*Gossiper) Shutdown 

func (g *Gossiper) Shutdown()

func (*Gossiper) StartGossiping 

func (g *Gossiper) StartGossiping() error

type GrainCallConfig 

type GrainCallConfig struct {
	RetryCount  int
	Timeout     time.Duration
	RetryAction func(n int)
	Context     actor.SenderContext
}

func DefaultGrainCallConfig 

func DefaultGrainCallConfig(cluster *Cluster) *GrainCallConfig

func NewGrainCallOptions 

func NewGrainCallOptions(cluster *Cluster) *GrainCallConfig

type GrainCallOption 

type GrainCallOption func(config *GrainCallConfig)

func WithContext 

func WithContext(ctx actor.SenderContext) GrainCallOption

func WithRetry 

func WithRetry(count int) GrainCallOption

func WithRetryAction 

func WithRetryAction(act func(i int)) GrainCallOption

func WithTimeout 

func WithTimeout(timeout time.Duration) GrainCallOption

type GrainContext 

type GrainContext interface {
	actor.Context

	Identity() string
	Kind() string
	Cluster() *Cluster
}

func NewGrainContext 

func NewGrainContext(context actor.Context, identity *ClusterIdentity, cluster *Cluster) GrainContext

type GrainErrorResponse 

type GrainErrorResponse struct {
	Err string `protobuf:"bytes,1,opt,name=err,proto3" json:"err,omitempty"`
	// contains filtered or unexported fields
}

func (*GrainErrorResponse) Descriptor deprecated 

func (*GrainErrorResponse) Descriptor() ([]byte, []int)

Deprecated: Use GrainErrorResponse.ProtoReflect.Descriptor instead.

func (*GrainErrorResponse) GetErr 

func (x *GrainErrorResponse) GetErr() string

func (*GrainErrorResponse) ProtoMessage 

func (*GrainErrorResponse) ProtoMessage()

func (*GrainErrorResponse) ProtoReflect 

func (x *GrainErrorResponse) ProtoReflect() protoreflect.Message

func (*GrainErrorResponse) Reset 

func (x *GrainErrorResponse) Reset()

func (*GrainErrorResponse) String 

func (x *GrainErrorResponse) String() string

type GrainRequest 

type GrainRequest struct {
	MethodIndex     int32  `protobuf:"varint,1,opt,name=method_index,json=methodIndex,proto3" json:"method_index,omitempty"`
	MessageData     []byte `protobuf:"bytes,2,opt,name=message_data,json=messageData,proto3" json:"message_data,omitempty"`
	MessageTypeName string `protobuf:"bytes,3,opt,name=message_type_name,json=messageTypeName,proto3" json:"message_type_name,omitempty"`
	// contains filtered or unexported fields
}

func (*GrainRequest) Descriptor deprecated 

func (*GrainRequest) Descriptor() ([]byte, []int)

Deprecated: Use GrainRequest.ProtoReflect.Descriptor instead.

func (*GrainRequest) GetMessageData 

func (x *GrainRequest) GetMessageData() []byte

func (*GrainRequest) GetMessageTypeName 

func (x *GrainRequest) GetMessageTypeName() string

func (*GrainRequest) GetMethodIndex 

func (x *GrainRequest) GetMethodIndex() int32

func (*GrainRequest) ProtoMessage 

func (*GrainRequest) ProtoMessage()

func (*GrainRequest) ProtoReflect 

func (x *GrainRequest) ProtoReflect() protoreflect.Message

func (*GrainRequest) Reset 

func (x *GrainRequest) Reset()

func (*GrainRequest) String 

func (x *GrainRequest) String() string

type GrainResponse 

type GrainResponse struct {
	MessageData     []byte `protobuf:"bytes,1,opt,name=message_data,json=messageData,proto3" json:"message_data,omitempty"`
	MessageTypeName string `protobuf:"bytes,2,opt,name=message_type_name,json=messageTypeName,proto3" json:"message_type_name,omitempty"`
	// contains filtered or unexported fields
}

func (*GrainResponse) Descriptor deprecated 

func (*GrainResponse) Descriptor() ([]byte, []int)

Deprecated: Use GrainResponse.ProtoReflect.Descriptor instead.

func (*GrainResponse) GetMessageData 

func (x *GrainResponse) GetMessageData() []byte

func (*GrainResponse) GetMessageTypeName 

func (x *GrainResponse) GetMessageTypeName() string

func (*GrainResponse) ProtoMessage 

func (*GrainResponse) ProtoMessage()

func (*GrainResponse) ProtoReflect 

func (x *GrainResponse) ProtoReflect() protoreflect.Message

func (*GrainResponse) Reset 

func (x *GrainResponse) Reset()

func (*GrainResponse) String 

func (x *GrainResponse) String() string

type IdentityHandover 

type IdentityHandover struct {
	Actors       []*Activation `protobuf:"bytes,1,rep,name=actors,proto3" json:"actors,omitempty"`
	ChunkId      int32         `protobuf:"varint,2,opt,name=chunk_id,json=chunkId,proto3" json:"chunk_id,omitempty"`
	Final        bool          `protobuf:"varint,3,opt,name=final,proto3" json:"final,omitempty"`
	TopologyHash uint64        `protobuf:"varint,4,opt,name=topology_hash,json=topologyHash,proto3" json:"topology_hash,omitempty"`
	Skipped      int32         `protobuf:"varint,5,opt,name=skipped,proto3" json:"skipped,omitempty"` // Total number of activations skipped
	Sent         int32         `protobuf:"varint,6,opt,name=sent,proto3" json:"sent,omitempty"`       // Total number of activations sent
	// contains filtered or unexported fields
}

func (*IdentityHandover) Descriptor deprecated 

func (*IdentityHandover) Descriptor() ([]byte, []int)

Deprecated: Use IdentityHandover.ProtoReflect.Descriptor instead.

func (*IdentityHandover) GetActors 

func (x *IdentityHandover) GetActors() []*Activation

func (*IdentityHandover) GetChunkId 

func (x *IdentityHandover) GetChunkId() int32

func (*IdentityHandover) GetFinal 

func (x *IdentityHandover) GetFinal() bool

func (*IdentityHandover) GetSent 

func (x *IdentityHandover) GetSent() int32

func (*IdentityHandover) GetSkipped 

func (x *IdentityHandover) GetSkipped() int32

func (*IdentityHandover) GetTopologyHash 

func (x *IdentityHandover) GetTopologyHash() uint64

func (*IdentityHandover) ProtoMessage 

func (*IdentityHandover) ProtoMessage()

func (*IdentityHandover) ProtoReflect 

func (x *IdentityHandover) ProtoReflect() protoreflect.Message

func (*IdentityHandover) Reset 

func (x *IdentityHandover) Reset()

func (*IdentityHandover) String 

func (x *IdentityHandover) String() string

type IdentityHandoverAck 

type IdentityHandoverAck struct {
	ChunkId         int32                     `protobuf:"varint,1,opt,name=chunk_id,json=chunkId,proto3" json:"chunk_id,omitempty"`
	TopologyHash    uint64                    `protobuf:"varint,2,opt,name=topology_hash,json=topologyHash,proto3" json:"topology_hash,omitempty"`
	ProcessingState IdentityHandoverAck_State `` /* 146-byte string literal not displayed */
	// contains filtered or unexported fields
}

func (*IdentityHandoverAck) Descriptor deprecated 

func (*IdentityHandoverAck) Descriptor() ([]byte, []int)

Deprecated: Use IdentityHandoverAck.ProtoReflect.Descriptor instead.

func (*IdentityHandoverAck) GetChunkId 

func (x *IdentityHandoverAck) GetChunkId() int32

func (*IdentityHandoverAck) GetProcessingState 

func (x *IdentityHandoverAck) GetProcessingState() IdentityHandoverAck_State

func (*IdentityHandoverAck) GetTopologyHash 

func (x *IdentityHandoverAck) GetTopologyHash() uint64

func (*IdentityHandoverAck) ProtoMessage 

func (*IdentityHandoverAck) ProtoMessage()

func (*IdentityHandoverAck) ProtoReflect 

func (x *IdentityHandoverAck) ProtoReflect() protoreflect.Message

func (*IdentityHandoverAck) Reset 

func (x *IdentityHandoverAck) Reset()

func (*IdentityHandoverAck) String 

func (x *IdentityHandoverAck) String() string

type IdentityHandoverAck_State 

type IdentityHandoverAck_State int32
const (
	IdentityHandoverAck_processed          IdentityHandoverAck_State = 0
	IdentityHandoverAck_incorrect_topology IdentityHandoverAck_State = 1
)

func (IdentityHandoverAck_State) Descriptor 

func (IdentityHandoverAck_State) Descriptor() protoreflect.EnumDescriptor

func (IdentityHandoverAck_State) Enum 

func (x IdentityHandoverAck_State) Enum() *IdentityHandoverAck_State

func (IdentityHandoverAck_State) EnumDescriptor deprecated 

func (IdentityHandoverAck_State) EnumDescriptor() ([]byte, []int)

Deprecated: Use IdentityHandoverAck_State.Descriptor instead.

func (IdentityHandoverAck_State) Number 

func (x IdentityHandoverAck_State) Number() protoreflect.EnumNumber

func (IdentityHandoverAck_State) String 

func (x IdentityHandoverAck_State) String() string

func (IdentityHandoverAck_State) Type 

func (IdentityHandoverAck_State) Type() protoreflect.EnumType

type IdentityHandoverRequest 

type IdentityHandoverRequest struct {
	CurrentTopology *IdentityHandoverRequest_Topology `protobuf:"bytes,1,opt,name=current_topology,json=currentTopology,proto3" json:"current_topology,omitempty"`
	Address         string                            `protobuf:"bytes,2,opt,name=address,proto3" json:"address,omitempty"`
	// If the requester passes a delta topology, only return activations which would not be assigned to the member
	// in the previous topology.
	DeltaTopology *IdentityHandoverRequest_Topology `protobuf:"bytes,3,opt,name=delta_topology,json=deltaTopology,proto3" json:"delta_topology,omitempty"`
	// contains filtered or unexported fields
}

request response call from Identity actor sent to each member asking what activations they hold that belong to the requester

func (*IdentityHandoverRequest) Descriptor deprecated 

func (*IdentityHandoverRequest) Descriptor() ([]byte, []int)

Deprecated: Use IdentityHandoverRequest.ProtoReflect.Descriptor instead.

func (*IdentityHandoverRequest) GetAddress 

func (x *IdentityHandoverRequest) GetAddress() string

func (*IdentityHandoverRequest) GetCurrentTopology 

func (x *IdentityHandoverRequest) GetCurrentTopology() *IdentityHandoverRequest_Topology

func (*IdentityHandoverRequest) GetDeltaTopology 

func (x *IdentityHandoverRequest) GetDeltaTopology() *IdentityHandoverRequest_Topology

func (*IdentityHandoverRequest) ProtoMessage 

func (*IdentityHandoverRequest) ProtoMessage()

func (*IdentityHandoverRequest) ProtoReflect 

func (x *IdentityHandoverRequest) ProtoReflect() protoreflect.Message

func (*IdentityHandoverRequest) Reset 

func (x *IdentityHandoverRequest) Reset()

func (*IdentityHandoverRequest) String 

func (x *IdentityHandoverRequest) String() string

type IdentityHandoverRequest_Topology 

type IdentityHandoverRequest_Topology struct {
	TopologyHash uint64    `protobuf:"varint,1,opt,name=topology_hash,json=topologyHash,proto3" json:"topology_hash,omitempty"`
	Members      []*Member `protobuf:"bytes,3,rep,name=members,proto3" json:"members,omitempty"`
	// contains filtered or unexported fields
}

func (*IdentityHandoverRequest_Topology) Descriptor deprecated 

func (*IdentityHandoverRequest_Topology) Descriptor() ([]byte, []int)

Deprecated: Use IdentityHandoverRequest_Topology.ProtoReflect.Descriptor instead.

func (*IdentityHandoverRequest_Topology) GetMembers 

func (x *IdentityHandoverRequest_Topology) GetMembers() []*Member

func (*IdentityHandoverRequest_Topology) GetTopologyHash 

func (x *IdentityHandoverRequest_Topology) GetTopologyHash() uint64

func (*IdentityHandoverRequest_Topology) ProtoMessage 

func (*IdentityHandoverRequest_Topology) ProtoMessage()

func (*IdentityHandoverRequest_Topology) ProtoReflect 

func (x *IdentityHandoverRequest_Topology) ProtoReflect() protoreflect.Message

func (*IdentityHandoverRequest_Topology) Reset 

func (x *IdentityHandoverRequest_Topology) Reset()

func (*IdentityHandoverRequest_Topology) String 

func (x *IdentityHandoverRequest_Topology) String() string

type IdentityLookup 

type IdentityLookup interface {
	Get(clusterIdentity *ClusterIdentity) *actor.PID

	RemovePid(clusterIdentity *ClusterIdentity, pid *actor.PID)

	Setup(cluster *Cluster, kinds []string, isClient bool)

	Shutdown()
}

IdentityLookup contains

type IdentityStorageLookup 

type IdentityStorageLookup struct {
	Storage StorageLookup
	// contains filtered or unexported fields
}

IdentityStorageLookup contains

func (*IdentityStorageLookup) Get 

func (id *IdentityStorageLookup) Get(clusterIdentity *ClusterIdentity) *actor.PID

Get returns a PID for a given ClusterIdentity

func (*IdentityStorageLookup) RemoveMember 

func (i *IdentityStorageLookup) RemoveMember(memberID string)

RemoveMember from identity storage

func (*IdentityStorageLookup) Setup 

func (id *IdentityStorageLookup) Setup(cluster *Cluster, kinds []string, isClient bool)

type IdentityStorageWorker 

type IdentityStorageWorker struct {
	// contains filtered or unexported fields
}

func (*IdentityStorageWorker) Receive 

func (ids *IdentityStorageWorker) Receive(c actor.Context)

Receive func

type Informer 

type Informer struct {
	// contains filtered or unexported fields
}

The Informer data structure implements the Gossip interface

func (*Informer) AddConsensusCheck 

func (inf *Informer) AddConsensusCheck(id string, check *ConsensusCheck)

adds a new consensus checker to this informer

func (*Informer) CheckConsensus 

func (inf *Informer) CheckConsensus(updatedKeys ...string)

check consensus for the given keys

func (*Informer) GetMemberStateDelta 

func (inf *Informer) GetMemberStateDelta(targetMemberID string) *MemberStateDelta

func (*Informer) GetState 

func (inf *Informer) GetState(key string) map[string]*anypb.Any

retrieves this informer current state for the given key returns map containing each known member id and their value

func (*Informer) ReceiveState 

func (inf *Informer) ReceiveState(remoteState *GossipState) []*GossipUpdate

receives a remote informer state

func (*Informer) RemoveConsensusCheck 

func (inf *Informer) RemoveConsensusCheck(id string)

removes a consensus checker from this informer

func (*Informer) SendState 

func (inf *Informer) SendState(sendStateToMember LocalStateSender)

sends this informer local state to remote informers chosen randomly from the slice of other members known by this informer until gossipFanOut number of sent has been reached

func (*Informer) SetState 

func (inf *Informer) SetState(key string, message proto.Message)

sets new update key state using the given proto message

func (*Informer) UpdateClusterTopology 

func (inf *Informer) UpdateClusterTopology(topology *ClusterTopology)

called when there is a cluster topology update

type Kind 

type Kind struct {
	Kind            string
	Props           *actor.Props
	StrategyBuilder func(*Cluster) MemberStrategy
}

Kind represents the kinds of actors a cluster can manage

func NewKind 

func NewKind(kind string, props *actor.Props) *Kind

NewKind creates a new instance of a kind

func (*Kind) Build 

func (k *Kind) Build(cluster *Cluster) *ActivatedKind

func (*Kind) WithMemberStrategy 

func (k *Kind) WithMemberStrategy(strategyBuilder func(*Cluster) MemberStrategy)

type LocalStateSender 

type LocalStateSender func(memberStateDelta *MemberStateDelta, member *Member)

customary type that defines a states sender callback.

type Member 

type Member struct {
	Host  string   `protobuf:"bytes,1,opt,name=host,proto3" json:"host,omitempty"`
	Port  int32    `protobuf:"varint,2,opt,name=port,proto3" json:"port,omitempty"`
	Id    string   `protobuf:"bytes,3,opt,name=id,proto3" json:"id,omitempty"`
	Kinds []string `protobuf:"bytes,4,rep,name=kinds,proto3" json:"kinds,omitempty"`
	// contains filtered or unexported fields
}

func (*Member) Address 

func (m *Member) Address() string

Address return a "host:port". Member defined by protos.proto

func (*Member) Descriptor deprecated 

func (*Member) Descriptor() ([]byte, []int)

Deprecated: Use Member.ProtoReflect.Descriptor instead.

func (*Member) GetHost 

func (x *Member) GetHost() string

func (*Member) GetId 

func (x *Member) GetId() string

func (*Member) GetKinds 

func (x *Member) GetKinds() []string

func (*Member) GetPort 

func (x *Member) GetPort() int32

func (*Member) HasKind 

func (m *Member) HasKind(kind string) bool

func (*Member) ProtoMessage 

func (*Member) ProtoMessage()

func (*Member) ProtoReflect 

func (x *Member) ProtoReflect() protoreflect.Message

func (*Member) Reset 

func (x *Member) Reset()

func (*Member) String 

func (x *Member) String() string

type MemberAvailableEvent 

type MemberAvailableEvent struct {
	MemberMeta
}

func (*MemberAvailableEvent) MemberStatusEvent 

func (*MemberAvailableEvent) MemberStatusEvent()

type MemberHeartbeat 

type MemberHeartbeat struct {
	ActorStatistics *ActorStatistics `protobuf:"bytes,1,opt,name=actor_statistics,json=actorStatistics,proto3" json:"actor_statistics,omitempty"`
	// contains filtered or unexported fields
}

func (*MemberHeartbeat) Descriptor deprecated 

func (*MemberHeartbeat) Descriptor() ([]byte, []int)

Deprecated: Use MemberHeartbeat.ProtoReflect.Descriptor instead.

func (*MemberHeartbeat) GetActorStatistics 

func (x *MemberHeartbeat) GetActorStatistics() *ActorStatistics

func (*MemberHeartbeat) ProtoMessage 

func (*MemberHeartbeat) ProtoMessage()

func (*MemberHeartbeat) ProtoReflect 

func (x *MemberHeartbeat) ProtoReflect() protoreflect.Message

func (*MemberHeartbeat) Reset 

func (x *MemberHeartbeat) Reset()

func (*MemberHeartbeat) String 

func (x *MemberHeartbeat) String() string

type MemberJoinedEvent 

type MemberJoinedEvent struct {
	MemberMeta
}

func (*MemberJoinedEvent) MemberStatusEvent 

func (*MemberJoinedEvent) MemberStatusEvent()

type MemberLeftEvent 

type MemberLeftEvent struct {
	MemberMeta
}

func (*MemberLeftEvent) MemberStatusEvent 

func (*MemberLeftEvent) MemberStatusEvent()

type MemberList 

type MemberList struct {
	// contains filtered or unexported fields
}

MemberList is responsible to keep track of the current cluster topology it does so by listening to changes from the ClusterProvider. the default ClusterProvider is consul.ConsulProvider which uses the Consul HTTP API to scan for changes

func NewMemberList 

func NewMemberList(cluster *Cluster) *MemberList

func (*MemberList) BroadcastEvent 

func (ml *MemberList) BroadcastEvent(message interface{}, includeSelf bool)

func (*MemberList) ContainsMemberID 

func (ml *MemberList) ContainsMemberID(memberID string) bool

func (*MemberList) GetActivatorMember 

func (ml *MemberList) GetActivatorMember(kind string, requestSourceAddress string) string

func (*MemberList) InitializeTopologyConsensus 

func (ml *MemberList) InitializeTopologyConsensus()

func (*MemberList) Length 

func (ml *MemberList) Length() int

func (*MemberList) Members 

func (ml *MemberList) Members() *MemberSet

func (*MemberList) TerminateMember 

func (ml *MemberList) TerminateMember(m *Member)

func (*MemberList) TopologyConsensus 

func (ml *MemberList) TopologyConsensus(ctx context.Context) (uint64, bool)

func (*MemberList) UpdateClusterTopology 

func (ml *MemberList) UpdateClusterTopology(members Members)

type MemberMeta 

type MemberMeta struct {
	Host  string
	Port  int
	Kinds []string
}

func (*MemberMeta) GetKinds 

func (e *MemberMeta) GetKinds() []string

func (*MemberMeta) Name 

func (e *MemberMeta) Name() string

type MemberRejoinedEvent 

type MemberRejoinedEvent struct {
	MemberMeta
}

func (*MemberRejoinedEvent) MemberStatusEvent 

func (*MemberRejoinedEvent) MemberStatusEvent()

type MemberSet 

type MemberSet struct {
	// contains filtered or unexported fields
}

func NewMemberSet 

func NewMemberSet(members Members) *MemberSet

func (*MemberSet) ContainsID 

func (ms *MemberSet) ContainsID(id string) bool

func (*MemberSet) Equals 

func (ms *MemberSet) Equals(other *MemberSet) bool

func (*MemberSet) Except 

func (ms *MemberSet) Except(other *MemberSet) *MemberSet

func (*MemberSet) ExceptIds 

func (ms *MemberSet) ExceptIds(ids []string) *MemberSet

func (*MemberSet) GetMemberById 

func (ms *MemberSet) GetMemberById(id string) *Member

func (*MemberSet) Len 

func (ms *MemberSet) Len() int

func (*MemberSet) Members 

func (ms *MemberSet) Members() Members

func (*MemberSet) TopologyHash 

func (ms *MemberSet) TopologyHash() uint64

func (*MemberSet) Union 

func (ms *MemberSet) Union(other *MemberSet) *MemberSet

type MemberStateDelta 

type MemberStateDelta struct {
	TargetMemberID string
	HasState       bool
	State          *GossipState
	CommitOffsets  func()
}

type MemberStatus 

type MemberStatus struct {
	Member
	MemberID string // for compatibility
	Alive    bool
}

func (*MemberStatus) Address 

func (m *MemberStatus) Address() string

type MemberStatusEvent 

type MemberStatusEvent interface {
	MemberStatusEvent()
	GetKinds() []string
}

type MemberStrategy 

type MemberStrategy interface {
	GetAllMembers() Members
	AddMember(member *Member)
	RemoveMember(member *Member)
	GetPartition(key string) string
	GetActivator(senderAddress string) string
}

type MemberUnavailableEvent 

type MemberUnavailableEvent struct {
	MemberMeta
}

func (*MemberUnavailableEvent) MemberStatusEvent 

func (*MemberUnavailableEvent) MemberStatusEvent()

type Members 

type Members []*Member

func CopySortMembers 

func CopySortMembers(members Members) Members

func (*Members) ToSet 

func (m *Members) ToSet() *MemberSet

type Option 

type Option func(g *Gossiper)

type PackedActivations 

type PackedActivations struct {
	Address string                    `protobuf:"bytes,1,opt,name=address,proto3" json:"address,omitempty"`
	Actors  []*PackedActivations_Kind `protobuf:"bytes,2,rep,name=actors,proto3" json:"actors,omitempty"`
	// contains filtered or unexported fields
}

func (*PackedActivations) Descriptor deprecated 

func (*PackedActivations) Descriptor() ([]byte, []int)

Deprecated: Use PackedActivations.ProtoReflect.Descriptor instead.

func (*PackedActivations) GetActors 

func (x *PackedActivations) GetActors() []*PackedActivations_Kind

func (*PackedActivations) GetAddress 

func (x *PackedActivations) GetAddress() string

func (*PackedActivations) ProtoMessage 

func (*PackedActivations) ProtoMessage()

func (*PackedActivations) ProtoReflect 

func (x *PackedActivations) ProtoReflect() protoreflect.Message

func (*PackedActivations) Reset 

func (x *PackedActivations) Reset()

func (*PackedActivations) String 

func (x *PackedActivations) String() string

type PackedActivations_Activation 

type PackedActivations_Activation struct {
	Identity     string `protobuf:"bytes,1,opt,name=identity,proto3" json:"identity,omitempty"`
	ActivationId string `protobuf:"bytes,2,opt,name=activation_id,json=activationId,proto3" json:"activation_id,omitempty"`
	// contains filtered or unexported fields
}

func (*PackedActivations_Activation) Descriptor deprecated 

func (*PackedActivations_Activation) Descriptor() ([]byte, []int)

Deprecated: Use PackedActivations_Activation.ProtoReflect.Descriptor instead.

func (*PackedActivations_Activation) GetActivationId 

func (x *PackedActivations_Activation) GetActivationId() string

func (*PackedActivations_Activation) GetIdentity 

func (x *PackedActivations_Activation) GetIdentity() string

func (*PackedActivations_Activation) ProtoMessage 

func (*PackedActivations_Activation) ProtoMessage()

func (*PackedActivations_Activation) ProtoReflect 

func (x *PackedActivations_Activation) ProtoReflect() protoreflect.Message

func (*PackedActivations_Activation) Reset 

func (x *PackedActivations_Activation) Reset()

func (*PackedActivations_Activation) String 

func (x *PackedActivations_Activation) String() string

type PackedActivations_Kind 

type PackedActivations_Kind struct {
	Name        string                          `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
	Activations []*PackedActivations_Activation `protobuf:"bytes,2,rep,name=activations,proto3" json:"activations,omitempty"`
	// contains filtered or unexported fields
}

func (*PackedActivations_Kind) Descriptor deprecated 

func (*PackedActivations_Kind) Descriptor() ([]byte, []int)

Deprecated: Use PackedActivations_Kind.ProtoReflect.Descriptor instead.

func (*PackedActivations_Kind) GetActivations 

func (x *PackedActivations_Kind) GetActivations() []*PackedActivations_Activation

func (*PackedActivations_Kind) GetName 

func (x *PackedActivations_Kind) GetName() string

func (*PackedActivations_Kind) ProtoMessage 

func (*PackedActivations_Kind) ProtoMessage()

func (*PackedActivations_Kind) ProtoReflect 

func (x *PackedActivations_Kind) ProtoReflect() protoreflect.Message

func (*PackedActivations_Kind) Reset 

func (x *PackedActivations_Kind) Reset()

func (*PackedActivations_Kind) String 

func (x *PackedActivations_Kind) String() string

type PidCacheValue 

type PidCacheValue struct {
	// contains filtered or unexported fields
}

func NewPidCache 

func NewPidCache() *PidCacheValue

func (*PidCacheValue) Get 

func (c *PidCacheValue) Get(identity string, kind string) (*actor.PID, bool)

func (*PidCacheValue) Remove 

func (c *PidCacheValue) Remove(identity string, kind string)

func (*PidCacheValue) RemoveByMember 

func (c *PidCacheValue) RemoveByMember(member *Member)

func (*PidCacheValue) RemoveByValue 

func (c *PidCacheValue) RemoveByValue(identity string, kind string, pid *actor.PID)

func (*PidCacheValue) Set 

func (c *PidCacheValue) Set(identity string, kind string, pid *actor.PID)

type PidResult 

type PidResult struct {
	Pid *actor.PID
}

PidResult contains

type ProxyActivationRequest 

type ProxyActivationRequest struct {
	ClusterIdentity    *ClusterIdentity `protobuf:"bytes,1,opt,name=cluster_identity,json=clusterIdentity,proto3" json:"cluster_identity,omitempty"`
	ReplacedActivation *actor.PID       `protobuf:"bytes,2,opt,name=replaced_activation,json=replacedActivation,proto3" json:"replaced_activation,omitempty"`
	// contains filtered or unexported fields
}

func (*ProxyActivationRequest) Descriptor deprecated 

func (*ProxyActivationRequest) Descriptor() ([]byte, []int)

Deprecated: Use ProxyActivationRequest.ProtoReflect.Descriptor instead.

func (*ProxyActivationRequest) GetClusterIdentity 

func (x *ProxyActivationRequest) GetClusterIdentity() *ClusterIdentity

func (*ProxyActivationRequest) GetReplacedActivation 

func (x *ProxyActivationRequest) GetReplacedActivation() *actor.PID

func (*ProxyActivationRequest) ProtoMessage 

func (*ProxyActivationRequest) ProtoMessage()

func (*ProxyActivationRequest) ProtoReflect 

func (x *ProxyActivationRequest) ProtoReflect() protoreflect.Message

func (*ProxyActivationRequest) Reset 

func (x *ProxyActivationRequest) Reset()

func (*ProxyActivationRequest) String 

func (x *ProxyActivationRequest) String() string

type ReadyForRebalance 

type ReadyForRebalance struct {
	TopologyHash uint64 `protobuf:"varint,1,opt,name=topology_hash,json=topologyHash,proto3" json:"topology_hash,omitempty"`
	// contains filtered or unexported fields
}

func (*ReadyForRebalance) Descriptor deprecated 

func (*ReadyForRebalance) Descriptor() ([]byte, []int)

Deprecated: Use ReadyForRebalance.ProtoReflect.Descriptor instead.

func (*ReadyForRebalance) GetTopologyHash 

func (x *ReadyForRebalance) GetTopologyHash() uint64

func (*ReadyForRebalance) ProtoMessage 

func (*ReadyForRebalance) ProtoMessage()

func (*ReadyForRebalance) ProtoReflect 

func (x *ReadyForRebalance) ProtoReflect() protoreflect.Message

func (*ReadyForRebalance) Reset 

func (x *ReadyForRebalance) Reset()

func (*ReadyForRebalance) String 

func (x *ReadyForRebalance) String() string

type RebalanceCompleted 

type RebalanceCompleted struct {
	TopologyHash uint64 `protobuf:"varint,1,opt,name=topology_hash,json=topologyHash,proto3" json:"topology_hash,omitempty"`
	// contains filtered or unexported fields
}

func (*RebalanceCompleted) Descriptor deprecated 

func (*RebalanceCompleted) Descriptor() ([]byte, []int)

Deprecated: Use RebalanceCompleted.ProtoReflect.Descriptor instead.

func (*RebalanceCompleted) GetTopologyHash 

func (x *RebalanceCompleted) GetTopologyHash() uint64

func (*RebalanceCompleted) ProtoMessage 

func (*RebalanceCompleted) ProtoMessage()

func (*RebalanceCompleted) ProtoReflect 

func (x *RebalanceCompleted) ProtoReflect() protoreflect.Message

func (*RebalanceCompleted) Reset 

func (x *RebalanceCompleted) Reset()

func (*RebalanceCompleted) String 

func (x *RebalanceCompleted) String() string

type RemoteIdentityHandover 

type RemoteIdentityHandover struct {
	Actors       *PackedActivations `protobuf:"bytes,1,opt,name=actors,proto3" json:"actors,omitempty"`
	ChunkId      int32              `protobuf:"varint,2,opt,name=chunk_id,json=chunkId,proto3" json:"chunk_id,omitempty"`
	Final        bool               `protobuf:"varint,3,opt,name=final,proto3" json:"final,omitempty"`
	TopologyHash uint64             `protobuf:"varint,4,opt,name=topology_hash,json=topologyHash,proto3" json:"topology_hash,omitempty"`
	Skipped      int32              `protobuf:"varint,5,opt,name=skipped,proto3" json:"skipped,omitempty"`
	Sent         int32              `protobuf:"varint,6,opt,name=sent,proto3" json:"sent,omitempty"`
	// contains filtered or unexported fields
}

func (*RemoteIdentityHandover) Descriptor deprecated 

func (*RemoteIdentityHandover) Descriptor() ([]byte, []int)

Deprecated: Use RemoteIdentityHandover.ProtoReflect.Descriptor instead.

func (*RemoteIdentityHandover) GetActors 

func (x *RemoteIdentityHandover) GetActors() *PackedActivations

func (*RemoteIdentityHandover) GetChunkId 

func (x *RemoteIdentityHandover) GetChunkId() int32

func (*RemoteIdentityHandover) GetFinal 

func (x *RemoteIdentityHandover) GetFinal() bool

func (*RemoteIdentityHandover) GetSent 

func (x *RemoteIdentityHandover) GetSent() int32

func (*RemoteIdentityHandover) GetSkipped 

func (x *RemoteIdentityHandover) GetSkipped() int32

func (*RemoteIdentityHandover) GetTopologyHash 

func (x *RemoteIdentityHandover) GetTopologyHash() uint64

func (*RemoteIdentityHandover) ProtoMessage 

func (*RemoteIdentityHandover) ProtoMessage()

func (*RemoteIdentityHandover) ProtoReflect 

func (x *RemoteIdentityHandover) ProtoReflect() protoreflect.Message

func (*RemoteIdentityHandover) Reset 

func (x *RemoteIdentityHandover) Reset()

func (*RemoteIdentityHandover) String 

func (x *RemoteIdentityHandover) String() string

type RemoveConsensusCheck 

type RemoveConsensusCheck struct {
	ID string
}

Mimic .NET ReenterAfterCancellation on GossipActor

func NewRemoveConsensusCheck 

func NewRemoveConsensusCheck(id string) RemoveConsensusCheck

type Rendezvous 

type Rendezvous struct {
	// contains filtered or unexported fields
}

func NewRendezvous 

func NewRendezvous() *Rendezvous

func (*Rendezvous) GetByClusterIdentity 

func (r *Rendezvous) GetByClusterIdentity(ci *ClusterIdentity) string

func (*Rendezvous) GetByIdentity 

func (r *Rendezvous) GetByIdentity(identity string) string

func (*Rendezvous) UpdateMembers 

func (r *Rendezvous) UpdateMembers(members Members)

type SendGossipStateRequest 

type SendGossipStateRequest struct{}

type SendGossipStateResponse 

type SendGossipStateResponse struct{}

type SetGossipStateKey 

type SetGossipStateKey struct {
	Key   string
	Value proto.Message
}

Used to setup Gossip Status Keys in the GossipActor

func NewGossipStateKey 

func NewGossipStateKey(key string, value proto.Message) SetGossipStateKey

Create a new SetGossipStateKey value with the given data and return it back

type SetGossipStateResponse 

type SetGossipStateResponse struct{}

Used by the GossipActor to respond SetGossipStatus requests

type SimpleRoundRobin 

type SimpleRoundRobin struct {
	// contains filtered or unexported fields
}

func NewSimpleRoundRobin 

func NewSimpleRoundRobin(memberStrategy MemberStrategy) *SimpleRoundRobin

func (*SimpleRoundRobin) GetByRoundRobin 

func (r *SimpleRoundRobin) GetByRoundRobin() string

type SpawnLock 

type SpawnLock struct {
	LockID          string
	ClusterIdentity *ClusterIdentity
}

SpawnLock contains

type StorageLookup 

type StorageLookup interface {
	TryGetExistingActivation(clusterIdentity *ClusterIdentity) *StoredActivation

	TryAcquireLock(clusterIdentity *ClusterIdentity) *SpawnLock

	WaitForActivation(clusterIdentity *ClusterIdentity) *StoredActivation

	RemoveLock(spawnLock SpawnLock)

	StoreActivation(memberID string, spawnLock *SpawnLock, pid *actor.PID)

	RemoveActivation(pid *SpawnLock)

	RemoveMemberId(memberID string)
}

StorageLookup contains

type StoredActivation 

type StoredActivation struct {
	Pid      string
	MemberID string
}

StoredActivation contains

Source Files

View all Source files

Directories

Path Synopsis
clusterproviders
automanaged
consul
etcd
k8s
zk
identitylookup
disthash
partition

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