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=cls #17846 Use CRDTs instead of PersistentActor to remember the state of the ShardCoordinator #17871

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Ostapenko Evgeniy 2015-08-20 13:24:39 +03:00
parent d2f08a3456
commit 6814d08ef1
14 changed files with 654 additions and 360 deletions
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14
akka-cluster-sharding/src/main/scala/akka/cluster/sharding/Shard.scala
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@ -98,7 +98,7 @@ private[akka] class Shard(
extractShardId: ShardRegion.ExtractShardId,
handOffStopMessage: Any) extends Actor with ActorLogging {
import ShardRegion.{ handOffStopperProps, EntityId, Msg, Passivate }
import ShardRegion.{ handOffStopperProps, EntityId, Msg, Passivate, ShardInitialized }
import ShardCoordinator.Internal.{ HandOff, ShardStopped }
import Shard.{ State, RestartEntity, EntityStopped, EntityStarted }
import akka.cluster.sharding.ShardCoordinator.Internal.CoordinatorMessage
@ -113,6 +113,10 @@ private[akka] class Shard(
var handOffStopper: Option[ActorRef] = None
initialized()
def initialized(): Unit = context.parent ! ShardInitialized(shardId)
def totalBufferSize = messageBuffers.foldLeft(0) { (sum, entity) ⇒ sum + entity._2.size }
def processChange[A](event: A)(handler: A ⇒ Unit): Unit =
@ -297,6 +301,9 @@ private[akka] class PersistentShard(
var persistCount = 0
// would be initialized after recovery completed
override def initialized(): Unit = {}
override def receive = receiveCommand
override def processChange[A](event: A)(handler: A ⇒ Unit): Unit = {
@ -316,7 +323,10 @@ private[akka] class PersistentShard(
case EntityStarted(id) ⇒ state = state.copy(state.entities + id)
case EntityStopped(id) ⇒ state = state.copy(state.entities - id)
case SnapshotOffer(_, snapshot: State) ⇒ state = snapshot
case RecoveryCompleted ⇒ state.entities foreach getEntity
case RecoveryCompleted ⇒
state.entities foreach getEntity
super.initialized()
log.debug("Shard recovery completed {}", shardId)
}
override def entityTerminated(ref: ActorRef): Unit = {