Hello Neha, I think i might be hitting this. I didn't shutdown the consumer (at least intentionally). Basically it was just an attempt to pipe ~1T through kafka, i would wild guess it's related to log expansion. Because around the time it happened i saw messages about expanding log, is it possible to be related?
Thanks. On Fri, Nov 1, 2013 at 3:50 AM, Neha Narkhede <neha.narkh...@gmail.com>wrote: > I think you are hitting https://issues.apache.org/jira/browse/KAFKA-824. > Was the consumer being shutdown at that time? > > > On Fri, Nov 1, 2013 at 1:28 AM, Kane Kane <kane.ist...@gmail.com> wrote: > > > I've got the following exception running produce/consume loop for several > > hours, > > that was just single exception, but during that time both producers and > > consumers slowed down a lot. After that looks like everything works fine, > > though i have > > suspicion some messages were lost. > > Can anyone explain what it might be? > > > > WARN consumer.ZookeeperConsumerConnector - > > [group2_kafka-001.sendgrid.net-1383289 > > 653031-b02bae92], exception during commitOffsets > > java.lang.NullPointerException > > at > > > org.I0Itec.zkclient.ZkConnection.writeDataReturnStat(ZkConnection.java:115) > > at org.I0Itec.zkclient.ZkClient$10.call(ZkClient.java:817) > > at > > org.I0Itec.zkclient.ZkClient.retryUntilConnected(ZkClient.java:675) > > at > > org.I0Itec.zkclient.ZkClient.writeDataReturnStat(ZkClient.java:813) > > at org.I0Itec.zkclient.ZkClient.writeData(ZkClient.java:808) > > at org.I0Itec.zkclient.ZkClient.writeData(ZkClient.java:777) > > at kafka.utils.ZkUtils$.updatePersistentPath(Unknown Source) > > at > > > > > kafka.consumer.ZookeeperConsumerConnector$$anonfun$commitOffsets$3$$anonfun$apply$5.apply(Unknown > > Source) > > at > > > > > kafka.consumer.ZookeeperConsumerConnector$$anonfun$commitOffsets$3$$anonfun$apply$5.apply(Unknown > > Source) > > at scala.collection.Iterator$class.foreach(Iterator.scala:727) > > at scala.collection.AbstractIterator.foreach(Iterator.scala:1157) > > at > > scala.collection.IterableLike$class.foreach(IterableLike.scala:72) > > at scala.collection.AbstractIterable.foreach(Iterable.scala:54) > > at > > > > > kafka.consumer.ZookeeperConsumerConnector$$anonfun$commitOffsets$3.apply(Unknown > > Source) > > at > > > > > kafka.consumer.ZookeeperConsumerConnector$$anonfun$commitOffsets$3.apply(Unknown > > Source) > > at > > > > > scala.collection.TraversableLike$WithFilter$$anonfun$foreach$1.apply(TraversableLike.scala:772) > > at scala.collection.Iterator$class.foreach(Iterator.scala:727) > > at kafka.utils.Pool$$anon$1.foreach(Unknown Source) > > at > > scala.collection.IterableLike$class.foreach(IterableLike.scala:72) > > at kafka.utils.Pool.foreach(Unknown Source) > > at > > > > > scala.collection.TraversableLike$WithFilter.foreach(TraversableLike.scala:771) > > at > kafka.consumer.ZookeeperConsumerConnector.commitOffsets(Unknown > > Source) > > >
