[jira] [Resolved] (KAFKA-7044) kafka-consumer-groups.sh NullPointerException describing round robin or sticky assignors

["Jason Gustafson (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-7044?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jason Gustafson resolved KAFKA-7044.
------------------------------------
       Resolution: Fixed
    Fix Version/s: 2.0.1
                   1.1.2

> kafka-consumer-groups.sh NullPointerException describing round robin or sticky assignors
> ----------------------------------------------------------------------------------------
>
>                 Key: KAFKA-7044
>                 URL: https://issues.apache.org/jira/browse/KAFKA-7044
>             Project: Kafka
>          Issue Type: Bug
>          Components: tools
>    Affects Versions: 1.1.0
>         Environment: CentOS 7.4, Oracle JDK 1.8
>            Reporter: Jeff Field
>            Assignee: Vahid Hashemian
>            Priority: Major
>             Fix For: 1.1.2, 2.0.1, 2.1.0
>
>
> We've recently moved to using the round robin assignor for one of our consumer groups, and started testing the sticky assignor. In both cases, using Kafka 1.1.0 we get a null pointer exception *unless* the group being described is rebalancing:
> {code:java}
> kafka-consumer-groups --bootstrap-server fqdn:9092 --describe --group groupname-for-consumer
> Error: Executing consumer group command failed due to null
> [2018-06-12 01:32:34,179] DEBUG Exception in consumer group command (kafka.admin.ConsumerGroupCommand$)
> java.lang.NullPointerException
> at scala.Predef$.Long2long(Predef.scala:363)
> at kafka.admin.ConsumerGroupCommand$KafkaConsumerGroupService$$anonfun$getLogEndOffsets$2.apply(ConsumerGroupCommand.scala:612)
> at kafka.admin.ConsumerGroupCommand$KafkaConsumerGroupService$$anonfun$getLogEndOffsets$2.apply(ConsumerGroupCommand.scala:610)
> at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
> at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
> at scala.collection.immutable.List.foreach(List.scala:392)
> at scala.collection.TraversableLike$class.map(TraversableLike.scala:234)
> at scala.collection.immutable.List.map(List.scala:296)
> at kafka.admin.ConsumerGroupCommand$KafkaConsumerGroupService.getLogEndOffsets(ConsumerGroupCommand.scala:610)
> at kafka.admin.ConsumerGroupCommand$ConsumerGroupService$class.describePartitions(ConsumerGroupCommand.scala:328)
> at kafka.admin.ConsumerGroupCommand$ConsumerGroupService$class.collectConsumerAssignment(ConsumerGroupCommand.scala:308)
> at kafka.admin.ConsumerGroupCommand$KafkaConsumerGroupService.collectConsumerAssignment(ConsumerGroupCommand.scala:544)
> at kafka.admin.ConsumerGroupCommand$KafkaConsumerGroupService$$anonfun$10$$anonfun$13.apply(ConsumerGroupCommand.scala:571)
> at kafka.admin.ConsumerGroupCommand$KafkaConsumerGroupService$$anonfun$10$$anonfun$13.apply(ConsumerGroupCommand.scala:565)
> at scala.collection.immutable.List.flatMap(List.scala:338)
> at kafka.admin.ConsumerGroupCommand$KafkaConsumerGroupService$$anonfun$10.apply(ConsumerGroupCommand.scala:565)
> at kafka.admin.ConsumerGroupCommand$KafkaConsumerGroupService$$anonfun$10.apply(ConsumerGroupCommand.scala:558)
> at scala.Option.map(Option.scala:146)
> at kafka.admin.ConsumerGroupCommand$KafkaConsumerGroupService.collectGroupOffsets(ConsumerGroupCommand.scala:558)
> at kafka.admin.ConsumerGroupCommand$ConsumerGroupService$class.describeGroup(ConsumerGroupCommand.scala:271)
> at kafka.admin.ConsumerGroupCommand$KafkaConsumerGroupService.describeGroup(ConsumerGroupCommand.scala:544)
> at kafka.admin.ConsumerGroupCommand$.main(ConsumerGroupCommand.scala:77)
> at kafka.admin.ConsumerGroupCommand.main(ConsumerGroupCommand.scala)
> [2018-06-12 01:32:34,255] DEBUG Removed sensor with name connections-closed: (org.apache.kafka.common.metrics.Metrics){code}



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