akka.cluster

ClusterEvent

object ClusterEvent

Domain events published to the event bus. Subscribe with:

Cluster(system).subscribe(actorRef, classOf[ClusterDomainEvent])
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  1. sealed trait ClusterDomainEvent extends AnyRef

    Marker interface for cluster domain events.

  2. case class ClusterMetricsChanged(nodeMetrics: Set[NodeMetrics]) extends ClusterDomainEvent with Product with Serializable

    Current snapshot of cluster node metrics.

  3. case class CurrentClusterState(members: SortedSet[Member] = ..., unreachable: Set[Member] = ..., seenBy: Set[Address] = ..., leader: Option[Address] = scala.None, roleLeaderMap: Map[String, Option[Address]] = ...) extends ClusterDomainEvent with Product with Serializable

    Current snapshot state of the cluster.

  4. case class LeaderChanged(leader: Option[Address]) extends ClusterDomainEvent with Product with Serializable

    Leader of the cluster members changed.

  5. sealed trait MemberEvent extends ClusterDomainEvent

    Marker interface for membership events.

  6. case class MemberExited(member: Member) extends MemberEvent with Product with Serializable

    Member status changed to Exiting.

  7. case class MemberRemoved(member: Member, previousStatus: MemberStatus) extends MemberEvent with Product with Serializable

    Member completely removed from the cluster.

  8. case class MemberUp(member: Member) extends MemberEvent with Product with Serializable

    Member status changed to Up.

  9. case class RoleLeaderChanged(role: String, leader: Option[Address]) extends ClusterDomainEvent with Product with Serializable

    First member (leader) of the members within a role set changed.

  10. case class UnreachableMember(member: Member) extends ClusterDomainEvent with Product with Serializable

    A member is considered as unreachable by the failure detector.

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