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Posted to dev@kafka.apache.org by "Ismael Juma (JIRA)" <ji...@apache.org> on 2017/06/01 20:00:08 UTC

[jira] [Commented] (KAFKA-5054) ChangeLoggingKeyValueByteStore delete and putIfAbsent should be synchronized

    [ https://issues.apache.org/jira/browse/KAFKA-5054?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16033577#comment-16033577 ] 

Ismael Juma commented on KAFKA-5054:
------------------------------------

This seems important and simple, @guozhangwang, can you please check?

> ChangeLoggingKeyValueByteStore delete and putIfAbsent should be synchronized
> ----------------------------------------------------------------------------
>
>                 Key: KAFKA-5054
>                 URL: https://issues.apache.org/jira/browse/KAFKA-5054
>             Project: Kafka
>          Issue Type: Bug
>          Components: streams
>    Affects Versions: 0.10.2.0
>            Reporter: Damian Guy
>            Assignee: Damian Guy
>             Fix For: 0.11.0.0
>
>
> {{putIfAbsent}} and {{delete}} should be synchronized as they involve at least 2 operations on the underlying store and may result in inconsistent results if someone were to query via IQ



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