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From "Jay Kreps (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (KAFKA-748) Append to index fails due to invalid offset
Date Fri, 08 Feb 2013 18:59:13 GMT

     [ https://issues.apache.org/jira/browse/KAFKA-748?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jay Kreps resolved KAFKA-748.
-----------------------------

    Resolution: Fixed

Checked in.

Jun, I think we effectively do the check you describe already because we run translateOffset
on the last index entry in order to initialize the log end offset.

I am so sure that this can cause the negative position issue.
                
> Append to index fails due to invalid offset
> -------------------------------------------
>
>                 Key: KAFKA-748
>                 URL: https://issues.apache.org/jira/browse/KAFKA-748
>             Project: Kafka
>          Issue Type: Bug
>    Affects Versions: 0.8
>            Reporter: Sriram Subramanian
>            Assignee: Jay Kreps
>            Priority: Blocker
>              Labels: p1
>             Fix For: 0.8
>
>         Attachments: KAFKA-748-v1.patch, outindex, outmsg
>
>
> We seem to be appending to the index and it checks to make sure we do not insert an entry
with an offset that is larger than the actual offset of the message. We seem to be trying
to insert an offset = 1 in the index while lastOffset is 24463. This seems to get fixed on
restarting the broker.
> java.lang.IllegalArgumentException: Attempt to append an offset (1) to position 21703
no larger than the last offset appended (24463).
> at kafka.log.OffsetIndex.append(OffsetIndex.scala:183)
> at kafka.log.LogSegment.append(LogSegment.scala:60)
> at kafka.log.Log.append(Log.scala:286)
> at kafka.server.KafkaApis$$anonfun$appendToLocalLog$2.apply(KafkaApis.scala:188)
> at kafka.server.KafkaApis$$anonfun$appendToLocalLog$2.apply(KafkaApis.scala:181)
> at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:206)
> at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:206)
> at scala.collection.immutable.Map$Map1.foreach(Map.scala:105)
> at scala.collection.TraversableLike$class.map(TraversableLike.scala:206)

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