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Kafka >> mail # dev >> [jira] [Commented] (KAFKA-948) ISR list in LeaderAndISR path not updated for partitions when Broker (which is not leader) is down


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David Lao 2013-08-27, 00:17
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[jira] [Commented] (KAFKA-948) ISR list in LeaderAndISR path not updated for partitions when Broker (which is not leader) is down

    [ https://issues.apache.org/jira/browse/KAFKA-948?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13750723#comment-13750723 ]

David Lao commented on KAFKA-948:
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I think I just ran into a similar issue... Here are the repro steps:

1) create a topic with 1 partition and 1 replica, populate some data
2) use the list command to find the broker holding the partition and take the broker down
3) use the delete command to delete the topic and then create command to re-create the same topic (so the partition will be on other brokers)

Now use the list command to dump the topic information, note the isr: list is blank, and the leader: is set to "none"
  

                
> ISR list in LeaderAndISR path not updated for partitions when Broker (which is not leader) is down
> --------------------------------------------------------------------------------------------------
>
>                 Key: KAFKA-948
>                 URL: https://issues.apache.org/jira/browse/KAFKA-948
>             Project: Kafka
>          Issue Type: Bug
>          Components: controller
>    Affects Versions: 0.8
>            Reporter: Dibyendu Bhattacharya
>            Assignee: Neha Narkhede
>
> When the broker which is the leader for a partition is down, the ISR list in the LeaderAndISR path is updated. But if the broker , which is not a leader of the partition is down, the ISR list is not getting updated. This is an issues because ISR list contains the stale entry.
> This issue I found in kafka-0.8.0-beta1-candidate1

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Jun Rao 2013-09-13, 16:12