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Kafka, mail # user - commitOffsets java.lang.NullPointerException


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Re: commitOffsets java.lang.NullPointerException
Neha Narkhede 2013-03-25, 04:26
On the Kafka JIRA - https://issues.apache.org/jira/browse/KAFKA

Thanks,
Neha

On Sunday, March 24, 2013, Yonghui Zhao wrote:

> Sure. no problem.  Where should I file the bug?
>
> 2013/3/25 Neha Narkhede <[EMAIL PROTECTED]>
>
> > Yes, I have. Unfortunately, I never quite around to fixing it. My guess
> is
> > that it is caused due to a race condition between the rebalance thread
> and
> > the offset commit thread when a rebalance is triggered or the client is
> > being shutdown. Do you mind filing a bug ?
> >
> > Thanks,
> > Neha
> >
> > On Sunday, March 24, 2013, Yonghui Zhao wrote:
> >
> > > Have you ever seen this exception?
> > >
> > >
> > > 2013/03/25 12:08:32.020 WARN [ZookeeperConsumerConnector] []
> > > 0_lu-ml-test10.bj-1364184411339-7c88f710 exception during commitOffsets
> > > java.lang.NullPointerException
> > >         at
> > > org.I0Itec.zkclient.ZkConnection.writeData(ZkConnection.java:111)
> > >         at org.I0Itec.zkclient.ZkClient$10.call(ZkClient.java:813)
> > >         at
> > > org.I0Itec.zkclient.ZkClient.retryUntilConnected(ZkClient.java:675)
> > >         at org.I0Itec.zkclient.ZkClient.writeData(ZkClient.java:809)
> > >         at org.I0Itec.zkclient.ZkClient.writeData(ZkClient.java:777)
> > >         at kafka.utils.ZkUtils$.updatePersistentPath(ZkUtils.scala:103)
> > >         at
> > >
> > >
> >
> kafka.consumer.ZookeeperConsumerConnector$$anonfun$commitOffsets$2$$anonfun$apply$4.apply(ZookeeperConsumerConnector.scala:251)
> > >         at
> > >
> > >
> >
> kafka.consumer.ZookeeperConsumerConnector$$anonfun$commitOffsets$2$$anonfun$apply$4.apply(ZookeeperConsumerConnector.scala:248)
> > >         at scala.collection.Iterator$class.foreach(Iterator.scala:631)
> > >         at
> > >
> > >
> >
> scala.collection.JavaConversions$JIteratorWrapper.foreach(JavaConversions.scala:549)
> > >         at
> > > scala.collection.IterableLike$class.foreach(IterableLike.scala:79)
> > >         at
> > >
> > >
> >
> scala.collection.JavaConversions$JCollectionWrapper.foreach(JavaConversions.scala:570)
> > >         at
> > >
> > >
> >
> kafka.consumer.ZookeeperConsumerConnector$$anonfun$commitOffsets$2.apply(ZookeeperConsumerConnector.scala:248)
> > >         at
> > >
> > >
> >
> kafka.consumer.ZookeeperConsumerConnector$$anonfun$commitOffsets$2.apply(ZookeeperConsumerConnector.scala:246)
> > >         at scala.collection.Iterator$class.foreach(Iterator.scala:631)
> > >         at kafka.utils.Pool$$anon$1.foreach(Pool.scala:53)
> > >         at
> > > scala.collection.IterableLike$class.foreach(IterableLike.scala:79)
> > >         at kafka.utils.Pool.foreach(Pool.scala:24)
> > >         at
> > >
> > >
> >
> kafka.consumer.ZookeeperConsumerConnector.commitOffsets(ZookeeperConsumerConnector.scala:246)
> > >         at
> > >
> > >
> >
> kafka.consumer.ZookeeperConsumerConnector.autoCommit(ZookeeperConsumerConnector.scala:232)
> > >         at
> > >
> > >
> >
> kafka.consumer.ZookeeperConsumerConnector$$anonfun$1.apply$mcV$sp(ZookeeperConsumerConnector.scala:126)
> > >         at kafka.utils.Utils$$anon$2.run(Utils.scala:58)
> > >         at
> > > java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
> > >         at
> > >
> >
> java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:351)
> > >         at
> > java.util.concurrent.FutureTask.runAndReset(FutureTask.java:178)
> > >         at
> > >
> > >
> >
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(Schedu