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https://issues.apache.org/jira/browse/KAFKA-2768?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15004693#comment-15004693
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ASF GitHub Bot commented on KAFKA-2768:
---------------------------------------
Github user asfgit closed the pull request at:
https://github.com/apache/kafka/pull/447
> New-consumer sends invalid describeGroupResponse while restabilizing
> --------------------------------------------------------------------
>
> Key: KAFKA-2768
> URL: https://issues.apache.org/jira/browse/KAFKA-2768
> Project: Kafka
> Issue Type: Bug
> Components: consumer
> Reporter: Ashish K Singh
> Assignee: Ashish K Singh
> Fix For: 0.9.0.0
>
>
> While a consumer group is restabilizing, it sends describeGroupResponse with
> no error, but empty metadata and assignments. That leads to SchemaException
> on client.
> {code}
> Error while executing consumer group command Error reading field 'version':
> java.nio.BufferUnderflowException
> org.apache.kafka.common.protocol.types.SchemaException: Error reading field
> 'version': java.nio.BufferUnderflowException
> at org.apache.kafka.common.protocol.types.Schema.read(Schema.java:73)
> at
> org.apache.kafka.clients.consumer.internals.ConsumerProtocol.deserializeAssignment(ConsumerProtocol.java:106)
> at
> kafka.admin.AdminClient$$anonfun$describeConsumerGroup$1.apply(AdminClient.scala:163)
> at
> kafka.admin.AdminClient$$anonfun$describeConsumerGroup$1.apply(AdminClient.scala:161)
> at
> scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
> at
> scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
> at scala.collection.immutable.List.foreach(List.scala:318)
> at scala.collection.TraversableLike$class.map(TraversableLike.scala:244)
> at scala.collection.AbstractTraversable.map(Traversable.scala:105)
> at kafka.admin.AdminClient.describeConsumerGroup(AdminClient.scala:161)
> at
> kafka.admin.ConsumerGroupCommand$.describe(ConsumerGroupCommand.scala:109)
> at kafka.admin.ConsumerGroupCommand$.main(ConsumerGroupCommand.scala:63)
> at kafka.admin.ConsumerGroupCommand.main(ConsumerGroupCommand.scala)
> {code}
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