Quite possibly. We are doing lots of restarts recovering from various issues. We can pay more attention next time.
If it is a shutdown scenario, I guess we don't need to be that concerned? Philip On Jul 10, 2013, at 10:22 PM, Jun Rao <jun...@gmail.com> wrote: > That can happen when shutting down the consumer. Is that the case? > > Thanks, > > Jun > > > On Wed, Jul 10, 2013 at 6:43 PM, Philip O'Toole <phi...@loggly.com> wrote: > >> Hello -- we're doing some heavy lifting now with our high-level based >> consumer. We open a Consumer Connection per partition within the one JVM, >> and are using Kafka 0.72. We saw a burst of the exceptions shown below. Is >> this something we should be concerned about? Or is this the normal output >> from rebalancing, as the consumer starts up? >> >> Thanks, >> >> Philip >> >> 2013-07-10 23:39:37,012 [ERROR] [ZookeeperConsumerConnector.error] >> writer_writer0-1373499526097-ec0d4672 error during syncedRebalance >> java.lang.NullPointerException >> at >> kafka.utils.ZkUtils$.getChildrenParentMayNotExist(ZkUtils.scala:181) >> at kafka.utils.ZkUtils$.getCluster(ZkUtils.scala:202) >> at >> >> kafka.consumer.ZookeeperConsumerConnector$ZKRebalancerListener$$anonfun$syncedRebalance$1.apply$mcVI$sp(ZookeeperConsumerConnector.scala:447) >> at scala.collection.immutable.Range.foreach$mVc$sp(Range.scala:75) >> at >> >> kafka.consumer.ZookeeperConsumerConnector$ZKRebalancerListener.syncedRebalance(ZookeeperConsumerConnector.scala:444) >> at >> >> kafka.consumer.ZookeeperConsumerConnector$ZKRebalancerListener$$anon$1.run(ZookeeperConsumerConnector.scala:401) >> 2013-07-10 23:39:37,013 [INFO] [ZookeeperConsumerConnector.info] >> writer_writer0-1373499534602-35941a8c begin rebalancing consumer >> writer_writer0-1373499534602-35941a8c try #1 >>
