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

    [ https://issues.apache.org/jira/browse/KAFKA-748?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13574678#comment-13574678

Jun Rao commented on KAFKA-748:

Thanks for the patch. It looks good. So +1. I suggest that we add one more sanity check after
loading all logs during startup: make sure that the position pointed to by the last index
entry is less than FileMessageSet.sizeInBytes(). We can probably just do the check for the
active log segment.

Also, do you think this can cause KAFKA-753 too?
> 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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