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https://issues.apache.org/jira/browse/SPARK-8592?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14606927#comment-14606927
]
Apache Spark commented on SPARK-8592:
-------------------------------------
User 'xuchenCN' has created a pull request for this issue:
https://github.com/apache/spark/pull/7110
> CoarseGrainedExecutorBackend: Cannot register with driver => NPE
> ----------------------------------------------------------------
>
> Key: SPARK-8592
> URL: https://issues.apache.org/jira/browse/SPARK-8592
> Project: Spark
> Issue Type: Bug
> Components: Scheduler, Spark Core
> Affects Versions: 1.4.0
> Environment: Ubuntu 14.04, Scala 2.11, Java 8,
> Reporter: Sjoerd Mulder
> Priority: Minor
>
> I cannot reproduce this consistently but when submitting jobs just after
> another finished it will not come up:
> {code}
> 15/06/24 14:57:24 INFO WorkerWatcher: Connecting to worker
> akka.tcp://sparkWorker@10.0.7.171:39135/user/Worker
> 15/06/24 14:57:24 INFO WorkerWatcher: Successfully connected to
> akka.tcp://sparkWorker@10.0.7.171:39135/user/Worker
> 15/06/24 14:57:24 ERROR CoarseGrainedExecutorBackend: Cannot register with
> driver: akka.tcp://sparkDriver@172.17.0.109:47462/user/CoarseGrainedScheduler
> java.lang.NullPointerException
> at
> org.apache.spark.rpc.akka.AkkaRpcEndpointRef.actorRef$lzycompute(AkkaRpcEnv.scala:273)
> at
> org.apache.spark.rpc.akka.AkkaRpcEndpointRef.actorRef(AkkaRpcEnv.scala:273)
> at
> org.apache.spark.rpc.akka.AkkaRpcEndpointRef.toString(AkkaRpcEnv.scala:313)
> at java.lang.String.valueOf(String.java:2982)
> at
> scala.collection.mutable.StringBuilder.append(StringBuilder.scala:200)
> at
> org.apache.spark.scheduler.cluster.CoarseGrainedSchedulerBackend$DriverEndpoint$$anonfun$receiveAndReply$1$$anonfun$applyOrElse$3.apply(CoarseGrainedSchedulerBackend.scala:125)
> at
> org.apache.spark.scheduler.cluster.CoarseGrainedSchedulerBackend$DriverEndpoint$$anonfun$receiveAndReply$1$$anonfun$applyOrElse$3.apply(CoarseGrainedSchedulerBackend.scala:125)
> at org.apache.spark.Logging$class.logInfo(Logging.scala:59)
> at
> org.apache.spark.scheduler.cluster.CoarseGrainedSchedulerBackend$DriverEndpoint.logInfo(CoarseGrainedSchedulerBackend.scala:69)
> at
> org.apache.spark.scheduler.cluster.CoarseGrainedSchedulerBackend$DriverEndpoint$$anonfun$receiveAndReply$1.applyOrElse(CoarseGrainedSchedulerBackend.scala:125)
> at
> org.apache.spark.rpc.akka.AkkaRpcEnv.org$apache$spark$rpc$akka$AkkaRpcEnv$$processMessage(AkkaRpcEnv.scala:178)
> at
> org.apache.spark.rpc.akka.AkkaRpcEnv$$anonfun$actorRef$lzycompute$1$1$$anon$1$$anonfun$receiveWithLogging$1$$anonfun$applyOrElse$4.apply$mcV$sp(AkkaRpcEnv.scala:127)
> at
> org.apache.spark.rpc.akka.AkkaRpcEnv.org$apache$spark$rpc$akka$AkkaRpcEnv$$safelyCall(AkkaRpcEnv.scala:198)
> at
> org.apache.spark.rpc.akka.AkkaRpcEnv$$anonfun$actorRef$lzycompute$1$1$$anon$1$$anonfun$receiveWithLogging$1.applyOrElse(AkkaRpcEnv.scala:126)
> at
> scala.runtime.AbstractPartialFunction.apply(AbstractPartialFunction.scala:36)
> at
> org.apache.spark.util.ActorLogReceive$$anon$1.apply(ActorLogReceive.scala:59)
> at
> org.apache.spark.util.ActorLogReceive$$anon$1.apply(ActorLogReceive.scala:42)
> at scala.PartialFunction$class.applyOrElse(PartialFunction.scala:123)
> at
> org.apache.spark.util.ActorLogReceive$$anon$1.applyOrElse(ActorLogReceive.scala:42)
> at akka.actor.Actor$class.aroundReceive(Actor.scala:465)
> at
> org.apache.spark.rpc.akka.AkkaRpcEnv$$anonfun$actorRef$lzycompute$1$1$$anon$1.aroundReceive(AkkaRpcEnv.scala:93)
> at akka.actor.ActorCell.receiveMessage(ActorCell.scala:516)
> at akka.actor.ActorCell.invoke(ActorCell.scala:487)
> at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:238)
> at akka.dispatch.Mailbox.run(Mailbox.scala:220)
> at
> akka.dispatch.ForkJoinExecutorConfigurator$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)
> {code}
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