[KAFKA-1980] Console consumer throws OutOfMemoryError with large max-messages

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Won't Fix
• Affects Version/s: 0.8.1.1, 0.8.2.0
• Component/s: tools
• Assignee: Unassigned
• Reporter: Håkon Hitland
• Created: 23/Feb/15 18:50
• Updated: 30/Aug/17 20:01
• Resolved: 30/Aug/17 17:50

Description

Tested on kafka_2.11-0.8.2.0
Steps to reproduce:

• Have any topic with at least 1 GB of data.
• Use kafka-console-consumer.sh on the topic passing a large number to --max-messages, e.g.:
  $ bin/kafka-console-consumer.sh --zookeeper localhost --topic test.large --from-beginning --max-messages 99999999 | head -n 40

Expected result:
Should stream messages up to max-messages

Result:
Out of memory error:
[2015-02-23 19:41:35,006] ERROR OOME with size 1048618 (kafka.network.BoundedByteBufferReceive)
java.lang.OutOfMemoryError: Java heap space
at java.nio.HeapByteBuffer.<init>(HeapByteBuffer.java:57)
at java.nio.ByteBuffer.allocate(ByteBuffer.java:331)
at kafka.network.BoundedByteBufferReceive.byteBufferAllocate(BoundedByteBufferReceive.scala:80)
at kafka.network.BoundedByteBufferReceive.readFrom(BoundedByteBufferReceive.scala:63)
at kafka.network.Receive$class.readCompletely(Transmission.scala:56)
at kafka.network.BoundedByteBufferReceive.readCompletely(BoundedByteBufferReceive.scala:29)
at kafka.network.BlockingChannel.receive(BlockingChannel.scala:111)
at kafka.consumer.SimpleConsumer.liftedTree1$1(SimpleConsumer.scala:71)
at kafka.consumer.SimpleConsumer.kafka$consumer$SimpleConsumer$$sendRequest(SimpleConsumer.scala:68)
at kafka.consumer.SimpleConsumer$$anonfun$fetch$1$$anonfun$apply$mcV$sp$1.apply$mcV$sp(SimpleConsumer.scala:112)
at kafka.consumer.SimpleConsumer$$anonfun$fetch$1$$anonfun$apply$mcV$sp$1.apply(SimpleConsumer.scala:112)
at kafka.consumer.SimpleConsumer$$anonfun$fetch$1$$anonfun$apply$mcV$sp$1.apply(SimpleConsumer.scala:112)
at kafka.metrics.KafkaTimer.time(KafkaTimer.scala:33)
at kafka.consumer.SimpleConsumer$$anonfun$fetch$1.apply$mcV$sp(SimpleConsumer.scala:111)
at kafka.consumer.SimpleConsumer$$anonfun$fetch$1.apply(SimpleConsumer.scala:111)
at kafka.consumer.SimpleConsumer$$anonfun$fetch$1.apply(SimpleConsumer.scala:111)
at kafka.metrics.KafkaTimer.time(KafkaTimer.scala:33)
at kafka.consumer.SimpleConsumer.fetch(SimpleConsumer.scala:110)
at kafka.server.AbstractFetcherThread.processFetchRequest(AbstractFetcherThread.scala:94)
at kafka.server.AbstractFetcherThread.doWork(AbstractFetcherThread.scala:86)
at kafka.utils.ShutdownableThread.run(ShutdownableThread.scala:60)

As a first guess I'd say that this is caused by slice() taking more memory than expected. Perhaps because it is called on an Iterable and not an Iterator?

Issue Links

• is related to: KAFKA-5523 ReplayLogProducer not using the new Kafka consumer