P.S. I've checked the release notes and didn't see anything specifically
related to ResendUnfulfillableException, although some closed issues were
related to connections and acks. I thought it would be better to ask.
On Tuesday, January 13, 2015 at 3:17:51 PM UTC-10, Jim Newsham wrote:
>
>
> We are using Akka 2.3.5 via Java. We have had a few rare reports of
> akka-remoting communication failing with ResendUnfulfillableException.
> When this happens, the log spews a lot of error messages as shown below,
> and requires a restart of the node to resolve. Due to the rarity of the
> issue, I doubt we'd be able to find a reproduction. Are there any known
> issues resolved in later versions (2.3.6 - 2.3.8) which could account for
> this problem? It would be nice to know before upgrading whether it has any
> chance of fixing the issue.
>
> ERROR Remoting - Error encountered while processing system message
> acknowledgement [] ACK[11, {4, 6, 7, 3, 5, 8, 9, 2}]
> akka.remote.transport.Transport$InvalidAssociationException: Error
> encountered while processing system message acknowledgement [] ACK[11, {4,
> 6, 7, 3, 5, 8, 9, 2}]
> Caused by: akka.remote.ResendUnfulfillableException: Unable to fulfill
> resend request since negatively acknowledged payload is no longer in
> buffer. The resend states between two systems are compromised and cannot be
> recovered.
> at akka.remote.AckedSendBuffer.acknowledge(AckedDelivery.scala:103)
> at
> akka.remote.ReliableDeliverySupervisor$$anonfun$receive$1.applyOrElse(Endpoint.scala:288)
> at akka.actor.Actor$class.aroundReceive(Actor.scala:465)
> at akka.remote.ReliableDeliverySupervisor.aroundReceive(Endpoint.scala:185)
> at akka.actor.ActorCell.receiveMessage(ActorCell.scala:516)
> at akka.actor.ActorCell.invoke(ActorCell.scala:487)
> at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:238)
> at akka.dispatch.Mailbox.run(Mailbox.scala:220)
> at
> akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:393)
> at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
> at
> scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
> at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
> at
> scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
> Thanks in advance,
> Jim
>
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