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ASF GitHub Bot commented on KAFKA-2833: --------------------------------------- Github user asfgit closed the pull request at: https://github.com/apache/kafka/pull/527 > OffsetsMessageFormatter hits unexpected exception > ------------------------------------------------- > > Key: KAFKA-2833 > URL: https://issues.apache.org/jira/browse/KAFKA-2833 > Project: Kafka > Issue Type: Bug > Reporter: Jun Rao > Assignee: Guozhang Wang > Fix For: 0.9.0.0 > > > Add the following property to config/consumer.properties > exclude.internal.topics=false > bin/kafka-console-consumer.sh --consumer.config config/consumer.properties > --from-beginning --topic __consumer_offsets --zookeeper localhost:2181 > --formatter "kafka.coordinator.GroupMetadataManager\$OffsetsMessageFormatter" > Processed a total of 1 messages > [2015-11-13 09:17:06,376] ERROR Unknown error when running consumer: > (kafka.tools.ConsoleConsumer$) > org.apache.kafka.common.protocol.types.SchemaException: Error reading field > 'metadata': java.nio.BufferUnderflowException > at org.apache.kafka.common.protocol.types.Schema.read(Schema.java:71) > at > kafka.coordinator.GroupMetadataManager$.kafka$coordinator$GroupMetadataManager$$readOffsetMessageValue(GroupMetadataManager.scala:861) > at > kafka.coordinator.GroupMetadataManager$OffsetsMessageFormatter.writeTo(GroupMetadataManager.scala:934) > at kafka.tools.ConsoleConsumer$.process(ConsoleConsumer.scala:114) > at kafka.tools.ConsoleConsumer$.run(ConsoleConsumer.scala:65) > at kafka.tools.ConsoleConsumer$.main(ConsoleConsumer.scala:43) > at kafka.tools.ConsoleConsumer.main(ConsoleConsumer.scala) -- This message was sent by Atlassian JIRA (v6.3.4#6332)