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From "Jun Rao (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (KAFKA-2477) Replicas spuriously deleting all segments in partition
Date Thu, 08 Oct 2015 05:02:27 GMT

    [ https://issues.apache.org/jira/browse/KAFKA-2477?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14948076#comment-14948076
] 

Jun Rao commented on KAFKA-2477:
--------------------------------

[~Håkon Hitland], the fix is committed in trunk. Do you think you can test this out in a
test environment?

> Replicas spuriously deleting all segments in partition
> ------------------------------------------------------
>
>                 Key: KAFKA-2477
>                 URL: https://issues.apache.org/jira/browse/KAFKA-2477
>             Project: Kafka
>          Issue Type: Bug
>    Affects Versions: 0.8.2.1
>            Reporter: Håkon Hitland
>            Assignee: Jiangjie Qin
>             Fix For: 0.9.0.0
>
>         Attachments: kafka_log.txt, kafka_log_trace.txt
>
>
> We're seeing some strange behaviour in brokers: a replica will sometimes schedule all
segments in a partition for deletion, and then immediately start replicating them back, triggering
our check for under-replicating topics.
> This happens on average a couple of times a week, for different brokers and topics.
> We have per-topic retention.ms and retention.bytes configuration, the topics where we've
seen this happen are hitting the size limit.



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