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From Jimmy John <jj...@livefyre.com>
Subject OffsetOutOfRange errors
Date Fri, 07 Nov 2014 02:23:11 GMT
Hello,

  I understand what this error means, just not sure why I keep running into
it after 24-48 hrs of running fine consuming > 300 messages / second.

  What happens when a kafka log rolls over and some old records are aged
out? I mean what happens to the offsets? We are using a python client which
stores the offsets in ZK. But in the middle of the run, say after 2 days or
so, suddenly it gets this error.

The only possibility is that the older records have aged off and ZK still
has the offset which is no longer applicable...How does the java client
deal with this? Does kafka inform ZK that records have been aged off and
update the offset or something?

Here is the error i see in the broker logs

[2014-11-07 01:40:32,478] ERROR [KafkaApi-11] Error when processing fetch
request for partition [activity.stream,3] offset 8013827 from consumer  with
correlation id 73 (kafka.server.KafkaApis)

 kafka.common.OffsetOutOfRangeException: Request for offset 8013827 but we
only have log segments in the range 8603331 to 11279773.

     at kafka.log.Log.read(Log.scala:380)

     at
kafka.server.KafkaApis.kafka$server$KafkaApis$$readMessageSet(KafkaApis.scala:530)

     at
kafka.server.KafkaApis$$anonfun$kafka$server$KafkaApis$$readMessageSets$1.apply(KafkaApis.scala:476)

     at
kafka.server.KafkaApis$$anonfun$kafka$server$KafkaApis$$readMessageSets$1.apply(KafkaApis.scala:471)

     at
scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:233)

     at
scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:233)

     at scala.collection.immutable.Map$Map3.foreach(Map.scala:164)

    at scala.collection.TraversableLike$class.map(TraversableLike.scala:233)

     at scala.collection.immutable.Map$Map3.map(Map.scala:144)

     at
kafka.server.KafkaApis.kafka$server$KafkaApis$$readMessageSets(KafkaApis.scala:471)

     at kafka.server.KafkaApis.handleFetchRequest(KafkaApis.scala:437)

     at kafka.server.KafkaApis.handle(KafkaApis.scala:186)

     at kafka.server.KafkaRequestHandler.run(KafkaRequestHandler.scala:42)

     at java.lang.Thread.run(Thread.java:745)


thx

Jim

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