actors

Type Members

class ClusterConnections extends Actor with ActorLogging
class ClusterConnectionsSupervisor extends Actor with ActorLogging
class ClusterReady extends Actor with ActorLogging
class ClusterReadySupervisor[C <: WaitForClusterToBeReady] extends CornucopiaSupervisor[WaitForClusterToBeReady]
class ClusterTopology extends Actor with ActorLogging
class ClusterTopologySupervisor[C <: OverseerCommand] extends CornucopiaSupervisor[OverseerCommand]
class ComputeReshardTable extends Actor with ActorLogging
trait CornucopiaSupervisor[C <: OverseerCommand] extends Actor with ActorLogging

Behaviour that the top-level actor of a processing stage must implement
class Dispatcher extends Actor with ActorLogging
class Failover extends Actor with ActorLogging
class FailoverSupervisor[C <: FailoverCommand] extends CornucopiaSupervisor[FailoverCommand]
class FailoverWorker extends Actor with ActorLogging
class FindPoorestMaster extends Actor with ActorLogging
class ForgetRedisNode extends Actor with ActorLogging
class ForgetRedisNodeSupervisor[C <: ForgetNode] extends CornucopiaSupervisor[ForgetNode]
class Gatekeeper extends Actor with ActorLogging

Processes raw Redis commands and forwards them to the Dispatcher if they are valid.
Processes raw Redis commands and forwards them to the Dispatcher if they are valid. If the commands are invalid, sends a TaskDenied response back to client ActorRef.
class GetRedisSourceNodes extends Actor with ActorLogging
class GetRole extends Actor with ActorLogging
class GetSlavesOfMaster extends Actor with ActorLogging
class GetSlavesOfMasterSupervisor[C <: GetSlavesOf] extends CornucopiaSupervisor[GetSlavesOf]
class JoinRedisNode extends Actor with ActorLogging
class JoinRedisNodeDelegate extends Actor with ActorLogging

Delegate to perform the actual adding of the node to the redis cluster.
Delegate to perform the actual adding of the node to the redis cluster. If the adding of a node to the cluster is a success, then send Passthrough message to sender. If the adding of a node fails due to a Redis connection error, then send a Fail message to sender
class JoinRedisNodeSupervisor[C <: JoinNode] extends CornucopiaSupervisor[JoinNode]

The supervisor actor for the join redis node action is used to signal a failed attempt to join a node by throwing an exception.
class Lifecycle extends Actor with ActorLogging

This actor exists to be the parent of the overseer.
class MigrateSlotKeysWorker extends Actor with ActorLogging
class MigrateSlotWorker extends Actor with ActorLogging
class MigrateSlotsJobManager extends Actor with ActorLogging

Implements the work-pulling pattern to rate-limit the migrate slot operations
class MigrateSlotsSupervisor[C <: MigrateSlotsCommand] extends CornucopiaSupervisor[MigrateSlotsCommand]

Actor hierarchy for doing the actual work during a reshard, which is to migrate slots between Redis nodes.
class NotifySlotAssignmentWorker extends Actor with ActorLogging
class Overseer extends Actor with ActorLogging

The overseer subscribes to Redis commands that have been published by the dispatcher.
The overseer subscribes to Redis commands that have been published by the dispatcher. This actor is the parent actor of all actors that process Redis cluster commands. Cluster commands include adding and removing nodes.
class ReplicatePoorestMaster extends Actor with ActorLogging
class ReplicatePoorestMasterSupervisor[C <: ReplicatePoorestMasterCommand] extends CornucopiaSupervisor[ReplicatePoorestMasterCommand]
class ReshardClusterSupervisor extends Actor with ActorLogging

Supervises the resharding of the cluster
class SetSlotAssignmentWorker extends Actor with ActorLogging
class ValidateClusterConnections extends Actor with ActorLogging
class VerifyFailover extends Actor with ActorLogging

Value Members

object ClusterConnections
object ClusterConnectionsSupervisor
object ClusterReady
object ClusterReadySupervisor
object ClusterTopology
object ClusterTopologySupervisor
object ComputeReshardTable
object Dispatcher

The dispatcher publishes redis cluster commands to be performed, and waits for them to be completed.
The dispatcher publishes redis cluster commands to be performed, and waits for them to be completed. The dispatcher subscribes to events on the message bus indicating when an operation has completed successfully or unsuccessfully. The dispatcher is completely decoupled from the actor hierarchy performing Redis cluster operations. The dispatcher can process a Redis command one at a time. When processing a Redis command, it uses become to change its state to running. When the dispatcher is running it will no longer accept other Redis cluster commands to publish. When it receives a success message on the message bus, the dispatcher will change its state back to accepting, and it will message the client ActorRef of the success.
object Failover
object FailoverSupervisor

When removing a redis node, it is necessary to specify whether a master or slave node should be removed, and the URI of the node that should be removed.
When removing a redis node, it is necessary to specify whether a master or slave node should be removed, and the URI of the node that should be removed. In some cases, if it's requested to remove a master node at a given URI, the redis cluster node at that given URI is not a master. The same is the case when removing a slave node. In those cases, it is necessary to run a FAILOVER command on the slave node that should become the master node. Once the failover is complete, the redis node at the given URI now has the desired role--master or slave, and it can then be removed.
object FailoverWorker
object FindPoorestMaster
object ForgetRedisNode
object ForgetRedisNodeSupervisor
object Gatekeeper
object GetRedisSourceNodes
object GetRole
object GetSlavesOfMaster
object GetSlavesOfMasterSupervisor
object JoinRedisNode
object JoinRedisNodeDelegate
object JoinRedisNodeSupervisor
object Lifecycle
object MessageBus

The message bus interface.
The message bus interface. This contains all the case class messages that can be published to and subscribed to on the message bus.
object MigrateSlotKeysWorker
object MigrateSlotWorker
object MigrateSlotsJobManager
object MigrateSlotsSupervisor
object NotifySlotAssignmentWorker
object Overseer
object ReplicatePoorestMaster
object ReplicatePoorestMasterSupervisor
object ReshardClusterSupervisor
object SetSlotAssignmentWorker
object SharedActorSystem
object ValidateClusterConnections
object VerifyFailover

package actors

Type Members

class ClusterConnections extends Actor with ActorLogging

class ClusterConnectionsSupervisor extends Actor with ActorLogging

class ClusterReady extends Actor with ActorLogging

class ClusterReadySupervisor[C <: WaitForClusterToBeReady] extends CornucopiaSupervisor[WaitForClusterToBeReady]

class ClusterTopology extends Actor with ActorLogging

class ClusterTopologySupervisor[C <: OverseerCommand] extends CornucopiaSupervisor[OverseerCommand]

class ComputeReshardTable extends Actor with ActorLogging

trait CornucopiaSupervisor[C <: OverseerCommand] extends Actor with ActorLogging

class Dispatcher extends Actor with ActorLogging

class Failover extends Actor with ActorLogging

class FailoverSupervisor[C <: FailoverCommand] extends CornucopiaSupervisor[FailoverCommand]

class FailoverWorker extends Actor with ActorLogging

class FindPoorestMaster extends Actor with ActorLogging

class ForgetRedisNode extends Actor with ActorLogging

class ForgetRedisNodeSupervisor[C <: ForgetNode] extends CornucopiaSupervisor[ForgetNode]

class Gatekeeper extends Actor with ActorLogging

class GetRedisSourceNodes extends Actor with ActorLogging

class GetRole extends Actor with ActorLogging

class GetSlavesOfMaster extends Actor with ActorLogging

class GetSlavesOfMasterSupervisor[C <: GetSlavesOf] extends CornucopiaSupervisor[GetSlavesOf]

class JoinRedisNode extends Actor with ActorLogging

class JoinRedisNodeDelegate extends Actor with ActorLogging

class JoinRedisNodeSupervisor[C <: JoinNode] extends CornucopiaSupervisor[JoinNode]

class Lifecycle extends Actor with ActorLogging

class MigrateSlotKeysWorker extends Actor with ActorLogging

class MigrateSlotWorker extends Actor with ActorLogging

class MigrateSlotsJobManager extends Actor with ActorLogging

class MigrateSlotsSupervisor[C <: MigrateSlotsCommand] extends CornucopiaSupervisor[MigrateSlotsCommand]

class NotifySlotAssignmentWorker extends Actor with ActorLogging

class Overseer extends Actor with ActorLogging

class ReplicatePoorestMaster extends Actor with ActorLogging

class ReplicatePoorestMasterSupervisor[C <: ReplicatePoorestMasterCommand] extends CornucopiaSupervisor[ReplicatePoorestMasterCommand]

class ReshardClusterSupervisor extends Actor with ActorLogging

class SetSlotAssignmentWorker extends Actor with ActorLogging

class ValidateClusterConnections extends Actor with ActorLogging

class VerifyFailover extends Actor with ActorLogging

Value Members

object ClusterConnections

object ClusterConnectionsSupervisor

object ClusterReady

object ClusterReadySupervisor

object ClusterTopology

object ClusterTopologySupervisor

object ComputeReshardTable

object Dispatcher

object Failover

object FailoverSupervisor

object FailoverWorker

object FindPoorestMaster

object ForgetRedisNode

object ForgetRedisNodeSupervisor

object Gatekeeper

object GetRedisSourceNodes

object GetRole

object GetSlavesOfMaster

object GetSlavesOfMasterSupervisor

object JoinRedisNode

object JoinRedisNodeDelegate

object JoinRedisNodeSupervisor

object Lifecycle

object MessageBus

object MigrateSlotKeysWorker

object MigrateSlotWorker

object MigrateSlotsJobManager

object MigrateSlotsSupervisor

object NotifySlotAssignmentWorker

object Overseer

object ReplicatePoorestMaster

object ReplicatePoorestMasterSupervisor

object ReshardClusterSupervisor

object SetSlotAssignmentWorker

object SharedActorSystem

object ValidateClusterConnections

object VerifyFailover

Ungrouped