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https://issues.apache.org/jira/browse/KAFKA-1170?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jun Rao resolved KAFKA-1170.
----------------------------
Resolution: Fixed
Fix Version/s: 0.8.1
already committed to trunk.
> ISR can be inconsistent during partition reassignment for low throughput
> partitions
> -----------------------------------------------------------------------------------
>
> Key: KAFKA-1170
> URL: https://issues.apache.org/jira/browse/KAFKA-1170
> Project: Kafka
> Issue Type: Bug
> Components: controller
> Affects Versions: 0.8.1
> Reporter: Neha Narkhede
> Assignee: Neha Narkhede
> Priority: Critical
> Fix For: 0.8.1
>
> Attachments: KAFKA-1170.patch, KAFKA-1170_2013-12-06_16:22:00.patch
>
>
> During reassignment of partitions, if the reassigned replicas already has the
> current leader, then the ISR of the partition can have the old replicas. This
> is particularly true for partitions that don't have further incoming data,
> since the leader does not remove replicas that have stopped sending fetch
> requests from the ISR if their log end offsets match (no more data comes in).
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