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From "Jay Kreps (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (KAFKA-748) Append to index fails due to invalid offset
Date Fri, 08 Feb 2013 00:17:12 GMT

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

Jay Kreps updated KAFKA-748:
----------------------------

    Attachment: KAFKA-748-v1.patch

Attached is a patch that retains the index position on resize. It also includes a few useful
logging and assert statements.
                
> 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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