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<http://stackoverflow.com/questions/36659242/akka-singleton-cluster-resolveonce-of-a-worker-by-master-fails-after-restart#>
I am using Akka Cluster 2.4.3 and trying to setup a simple cluster in my
machine to understand its working better. I have a singleton cluster with
remoting enabled with primary and standby master and one worker node. Each
of these 3 run in separate JVMs
Things work fine when all the nodes are started the first time. If I kill
and restart the worker, I see following issues happening
*Restart Worker*
When the worker comes back after restart, the master on receiving MemberUp
event
tries to resolve for the actorRef from the member address the following way
context.actorSelection(member.address.toString).resolveOne(15 seconds)
This fails with an exception saying ActorNotFound. This works with no
problem when all the nodes are coming up for the first time in the cluster.
*Restart worker again*
This time, the worker comes up with the following message
[WARN] [04/15/2016 18:24:24.991]
[clustersystem-akka.remote.default-remote-dispatcher-5]
[akka.remote.Remoting] Tried to associate with unreachable remote address
[akka.tcp://clustersystem@host1:2551]. Address is now gated for 5000 ms,
all messages to this address will be delivered to dead letters. Reason:
[The remote system has quarantined this system. No further associations to
the remote system are possible until this system is restarted.]
*Restart worker again*
This time the resolveOne on a MemberUp event works.
I am having a bit of difficulty in understanding what is happening here, I
have looked into the docs but I did not find anything that will help me in
there.
*application.conf*
akka {
actor {
provider = "akka.cluster.ClusterActorRefProvider"
}
remote {
enabled-transports = ["akka.remote.netty.tcp"]
}
log-dead-letters = off
jvm-exit-on-fatal-error = on
loglevel = "DEBUG"
remote {
log-remote-lifecycle-events = off
netty.tcp {
hostname = "host1"
port = 0
}
}
cluster {
seed-nodes = [
"akka.tcp://clustersystem@host1:2551",
"akka.tcp://clustersystem@host1:2552"]
auto-down-unreachable-after = 10s
}
extensions = ["akka.cluster.metrics.ClusterMetricsExtension"]}
I start master nodes at ports 2551 and 2552 (provide the ports as command
line args) and I start the worker on port 3551
Posted in stackoverflow as
well:
http://stackoverflow.com/questions/36659242/akka-singleton-cluster-resolveonce-of-a-worker-by-master-fails-after-restart
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