我正在运行官方akka提供的示例：https://github.com/akka/akka-samples/tree/2.5/akka-sample-cluster-scala。
我的操作系统是：具有最新内核的Linux Mint 19。
对于Worker Dial-in Example（Transformation Example），由于/ dev / shm中没有足够的空间，因此我无法完全运行此示例。虽然我有2GB以上的可用空间。
问题是当我启动第一个前端节点时，它占用了一些KBs空间。当我启动第二个时，它占用了MB的空间。当我启动第三个硬盘时，它占用了数百MB的空间。此外，我什至无法启动第四个，它抛出一个错误，导致整个集群崩溃：
[info] Warning: space is running low in /dev/shm (tmpfs) threshold=167,772,160 usable=95,424,512
[info] Warning: space is running low in /dev/shm (tmpfs) threshold=167,772,160 usable=45,088,768
[info] [ERROR] [11/05/2018 21:03:56.156] [ClusterSystem-akka.actor.default-dispatcher-12] [akka://ClusterSystem@127.0.0.1:57246/] swallowing exception during message send
[info] io.aeron.exceptions.RegistrationException: IllegalStateException : Insufficient usable storage for new log of length=50335744 in /dev/shm (tmpfs)
[info] at io.aeron.ClientConductor.onError(ClientConductor.java:174)
[info] at io.aeron.DriverEventsAdapter.onMessage(DriverEventsAdapter.java:81)
[info] at org.agrona.concurrent.broadcast.CopyBroadcastReceiver.receive(CopyBroadcastReceiver.java:100)
[info] at io.aeron.DriverEventsAdapter.receive(DriverEventsAdapter.java:56)
[info] at io.aeron.ClientConductor.service(ClientConductor.java:660)
[info] at io.aeron.ClientConductor.awaitResponse(ClientConductor.java:696)
[info] at io.aeron.ClientConductor.addPublication(ClientConductor.java:371)
[info] at io.aeron.Aeron.addPublication(Aeron.java:259)
[info] at akka.remote.artery.aeron.AeronSink$$anon$1.<init>(AeronSink.scala:103)
[info] at akka.remote.artery.aeron.AeronSink.createLogicAndMaterializedValue(AeronSink.scala:100)
[info] at akka.stream.impl.GraphStageIsland.materializeAtomic(PhasedFusingActorMaterializer.scala:630)
[info] at akka.stream.impl.PhasedFusingActorMaterializer.materialize(PhasedFusingActorMaterializer.scala:450)
[info] at akka.stream.impl.PhasedFusingActorMaterializer.materialize(PhasedFusingActorMaterializer.scala:415)
[info] at akka.stream.impl.PhasedFusingActorMaterializer.materialize(PhasedFusingActorMaterializer.scala:406)
[info] at akka.stream.scaladsl.RunnableGraph.run(Flow.scala:588)
[info] at akka.remote.artery.Association.runOutboundOrdinaryMessagesStream(Association.scala:726)
[info] at akka.remote.artery.Association.runOutboundStreams(Association.scala:657)
[info] at akka.remote.artery.Association.associate(Association.scala:649)
[info] at akka.remote.artery.AssociationRegistry.association(Association.scala:989)
[info] at akka.remote.artery.ArteryTransport.association(ArteryTransport.scala:724)
[info] at akka.remote.artery.ArteryTransport.send(ArteryTransport.scala:710)
[info] at akka.remote.RemoteActorRef.$bang(RemoteActorRefProvider.scala:591)
[info] at akka.actor.ActorRef.tell(ActorRef.scala:124)
[info] at akka.actor.ActorSelection$.rec$1(ActorSelection.scala:265)
[info] at akka.actor.ActorSelection$.deliverSelection(ActorSelection.scala:269)
[info] at akka.actor.ActorSelection.tell(ActorSelection.scala:46)
[info] at akka.actor.ScalaActorSelection.$bang(ActorSelection.scala:280)
[info] at akka.actor.ScalaActorSelection.$bang$(ActorSelection.scala:280)
[info] at akka.actor.ActorSelection$$anon$1.$bang(ActorSelection.scala:198)
[info] at akka.cluster.ClusterCoreDaemon.gossipTo(ClusterDaemon.scala:1330)
[info] at akka.cluster.ClusterCoreDaemon.gossip(ClusterDaemon.scala:1047)
[info] at akka.cluster.ClusterCoreDaemon.gossipTick(ClusterDaemon.scala:1010)
[info] at akka.cluster.ClusterCoreDaemon$$anonfun$initialized$1.applyOrElse(ClusterDaemon.scala:496)
[info] at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:171)
[info] at akka.actor.Actor.aroundReceive(Actor.scala:517)
[info] at akka.actor.Actor.aroundReceive$(Actor.scala:515)
[info] at akka.cluster.ClusterCoreDaemon.aroundReceive(ClusterDaemon.scala:295)
[info] at akka.actor.ActorCell.receiveMessage(ActorCell.scala:588)
[info] at akka.actor.ActorCell.invoke(ActorCell.scala:557)
[info] at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:258)
[info] at akka.dispatch.Mailbox.run(Mailbox.scala:225)
[info] at akka.dispatch.Mailbox.exec(Mailbox.scala:235)
[info] at akka.dispatch.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
[info] at akka.dispatch.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
[info] at akka.dispatch.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
[info] at akka.dispatch.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
似乎正在向每个节点发送巨大的消息（48MB+?）。
那么这是怎么回事？根本原因是什么，我该如何解决？