[jira] [Created] (KAFKA-2352) Possible memory leak in MirrorMaker and/or new Producer

["Kostya Golikov (JIRA)" <ji...@apache.org>]

Kostya Golikov created KAFKA-2352:
-------------------------------------

             Summary: Possible memory leak in MirrorMaker and/or new Producer
                 Key: KAFKA-2352
                 URL: https://issues.apache.org/jira/browse/KAFKA-2352
             Project: Kafka
          Issue Type: Bug
    Affects Versions: 0.8.2.1
            Reporter: Kostya Golikov


I've been playing around with Mirror Maker (version from trunk, dated July 7th) and got a few problems, most noticeable of which is that MirrorMaker exhausts it's memory pool, even though it's set to relatively huge value 132 MB, and individual messages are around 2 KB. Batch size is set to just 2 messages (full configs are attached). 

{code}
[2015-07-21 15:19:52,915] FATAL [mirrormaker-thread-1] Mirror maker thread failure due to  (kafka.tools.MirrorMaker$MirrorMakerThread)
org.apache.kafka.clients.producer.BufferExhaustedException: You have exhausted the 134217728 bytes of memory you configured for the client and the client is configured to error rather than block when memory is exhausted.
	at org.apache.kafka.clients.producer.internals.BufferPool.allocate(BufferPool.java:124)
	at org.apache.kafka.clients.producer.internals.RecordAccumulator.append(RecordAccumulator.java:172)
	at org.apache.kafka.clients.producer.KafkaProducer.send(KafkaProducer.java:388)
	at kafka.tools.MirrorMaker$MirrorMakerProducer.send(MirrorMaker.scala:380)
	at kafka.tools.MirrorMaker$MirrorMakerThread$$anonfun$run$3.apply(MirrorMaker.scala:311)
	at kafka.tools.MirrorMaker$MirrorMakerThread$$anonfun$run$3.apply(MirrorMaker.scala:311)
	at scala.collection.Iterator$class.foreach(Iterator.scala:727)
	at scala.collection.AbstractIterator.foreach(Iterator.scala:1157)
	at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
	at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
	at kafka.tools.MirrorMaker$MirrorMakerThread.run(MirrorMaker.scala:311)
{code}

Am I doing something wrong? Any help in further diagnosing of this problem might be handy.



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