Akka不会自动加入种子节点
-
21-12-2019 - |
题
我用播放应用程序定义一个akka群集。
application.conf
akka {
actor {
provider = "akka.cluster.ClusterActorRefProvider"
}
remote {
log-remote-lifecycle-events = off
netty.tcp {
hostname = "192.168.1.100"
port = 2552
}
}
cluster {
seed-nodes = [
"akka.tcp://application@192.168.1.100:2552",
"akka.tcp://application@192.168.1.101:2552",
"akka.tcp://application@192.168.1.102:2552"]
auto-down-unreachable-after = 10s
}
}
.
然后我定义群集侦听器
class ClusterListener extends Actor with ActorLogging {
def receive = {
case state: CurrentClusterState =>
log.info("Current members: {}", state.members.mkString(", "))
case MemberUp(member) =>
log.info("Member is Up: {}", member.address)
case UnreachableMember(member) =>
log.info("Member detected as unreachable: {}", member)
case MemberRemoved(member, previousStatus) =>
log.info("Member is Removed: {} after {}",
member.address, previousStatus)
case _: ClusterDomainEvent => // ignore
}
}
.
并开始我的应用程序,如此
val clusterListener = Akka.system.actorOf(Props[ClusterListener], "cluster-listener")
Cluster(Akka.system).subscribe(clusterListener, classOf[ClusterDomainEvent])
.
我首先启动了192.168.1.100的应用程序,它加入了。
然后我在
192.16.1.101
和192.16.1.102
上启动相同的应用程序。
但第一个种子节点永远不会收到加入事件!
我该怎么办,让其他节点加入这个群集?
解决方案
我找到了原因。群集在对象中定义。且对象才初始化,因此只需在Global.scala上调用该对象的任何方法。愚蠢的我!!!
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