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https://issues.apache.org/jira/browse/KAFKA-5110?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15981652#comment-15981652
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Vahid Hashemian commented on KAFKA-5110:
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[~cotedm] Thanks for your response. Yes, hopefully the PR would help better
pinpoint any potential issues in the future.
> ConsumerGroupCommand error handling improvement
> -----------------------------------------------
>
> Key: KAFKA-5110
> URL: https://issues.apache.org/jira/browse/KAFKA-5110
> Project: Kafka
> Issue Type: Bug
> Components: tools
> Affects Versions: 0.10.1.1
> Reporter: Dustin Cote
> Assignee: Jason Gustafson
>
> The ConsumerGroupCommand isn't handling partition errors properly. It throws
> the following:
> {code}
> kafka-consumer-groups.sh --zookeeper 10.10.10.10:2181 --group mygroup
> --describe
> GROUP TOPIC PARTITION CURRENT-OFFSET LOG-END-OFFSET LAG OWNER
> Error while executing consumer group command empty.head
> java.lang.UnsupportedOperationException: empty.head
> at scala.collection.immutable.Vector.head(Vector.scala:193)
> at
> kafka.admin.ConsumerGroupCommand$ZkConsumerGroupService$$anonfun$getLogEndOffset$1.apply(ConsumerGroupCommand.scala:197)
> at
> kafka.admin.ConsumerGroupCommand$ZkConsumerGroupService$$anonfun$getLogEndOffset$1.apply(ConsumerGroupCommand.scala:194)
> at scala.Option.map(Option.scala:146)
> at
> kafka.admin.ConsumerGroupCommand$ZkConsumerGroupService.getLogEndOffset(ConsumerGroupCommand.scala:194)
> at
> kafka.admin.ConsumerGroupCommand$ConsumerGroupService$class.kafka$admin$ConsumerGroupCommand$ConsumerGroupService$$describePartition(ConsumerGroupCommand.scala:125)
> at
> kafka.admin.ConsumerGroupCommand$ConsumerGroupService$$anonfun$describeTopicPartition$2.apply(ConsumerGroupCommand.scala:107)
> at
> kafka.admin.ConsumerGroupCommand$ConsumerGroupService$$anonfun$describeTopicPartition$2.apply(ConsumerGroupCommand.scala:106)
> at
> scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
> at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:48)
> at
> kafka.admin.ConsumerGroupCommand$ConsumerGroupService$class.describeTopicPartition(ConsumerGroupCommand.scala:106)
> at
> kafka.admin.ConsumerGroupCommand$ZkConsumerGroupService.describeTopicPartition(ConsumerGroupCommand.scala:134)
> at
> kafka.admin.ConsumerGroupCommand$ZkConsumerGroupService.kafka$admin$ConsumerGroupCommand$ZkConsumerGroupService$$describeTopic(ConsumerGroupCommand.scala:181)
> at
> kafka.admin.ConsumerGroupCommand$ZkConsumerGroupService$$anonfun$describeGroup$1.apply(ConsumerGroupCommand.scala:166)
> at
> kafka.admin.ConsumerGroupCommand$ZkConsumerGroupService$$anonfun$describeGroup$1.apply(ConsumerGroupCommand.scala:166)
> at scala.collection.Iterator$class.foreach(Iterator.scala:893)
> at scala.collection.AbstractIterator.foreach(Iterator.scala:1336)
> at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
> at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
> at
> kafka.admin.ConsumerGroupCommand$ZkConsumerGroupService.describeGroup(ConsumerGroupCommand.scala:166)
> at
> kafka.admin.ConsumerGroupCommand$ConsumerGroupService$class.describe(ConsumerGroupCommand.scala:89)
> at
> kafka.admin.ConsumerGroupCommand$ZkConsumerGroupService.describe(ConsumerGroupCommand.scala:134)
> at kafka.admin.ConsumerGroupCommand$.main(ConsumerGroupCommand.scala:68)
> at kafka.admin.ConsumerGroupCommand.main(ConsumerGroupCommand.scala)
> {code}
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