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min-nr-of-members and registerOnMemberUp, see #2306

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* Leader moves joining members to up when min-nr-of-members reached
* Tested by MinMembersBeforeUpSpec
* Used in factorial sample
* Docs
This commit is contained in:
Patrik Nordwall 2012-12-10 08:46:25 +01:00
parent d642fab666
commit 44ab9f116f
13 changed files with 241 additions and 105 deletions
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19
akka-cluster/src/main/scala/akka/cluster/Cluster.scala
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@ -232,6 +232,24 @@ class Cluster(val system: ExtendedActorSystem) extends Extension {
def down(address: Address): Unit =
clusterCore ! ClusterUserAction.Down(address)
/**
* The supplied thunk will be run, once, when current cluster member is `Up`.
* Typically used together with configuration option `akka.cluster.min-nr-of-members'
* to defer some action, such as starting actors, until the cluster has reached
* a certain size.
*/
def registerOnMemberUp[T](code: ⇒ T): Unit =
registerOnMemberUp(new Runnable { def run = code })
/**
* The supplied callback will be run, once, when current cluster member is `Up`.
* Typically used together with configuration option `akka.cluster.min-nr-of-members'
* to defer some action, such as starting actors, until the cluster has reached
* a certain size.
* JAVA API
*/
def registerOnMemberUp(callback: Runnable): Unit = clusterDaemons ! InternalClusterAction.AddOnMemberUpListener(callback)
// ========================================================
// ===================== INTERNAL API =====================
// ========================================================
@ -268,4 +286,3 @@ class Cluster(val system: ExtendedActorSystem) extends Extension {
}
}