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Posted to jira@kafka.apache.org by "Guozhang Wang (JIRA)" <ji...@apache.org> on 2018/02/01 18:21:00 UTC

[jira] [Resolved] (KAFKA-6499) Avoid creating dummy checkpoint files with no state stores

     [ https://issues.apache.org/jira/browse/KAFKA-6499?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Guozhang Wang resolved KAFKA-6499.
----------------------------------
       Resolution: Fixed
    Fix Version/s: 1.2.0
                   1.1.0

> Avoid creating dummy checkpoint files with no state stores
> ----------------------------------------------------------
>
>                 Key: KAFKA-6499
>                 URL: https://issues.apache.org/jira/browse/KAFKA-6499
>             Project: Kafka
>          Issue Type: Improvement
>          Components: streams
>            Reporter: Guozhang Wang
>            Assignee: Guozhang Wang
>            Priority: Major
>             Fix For: 1.1.0, 1.2.0
>
>
> Today, for a streams task that contains no state stores, its processor state manager would still write a dummy checkpoint file that contains some characters (version, size). This introduces unnecessary disk IOs and should be avoidable.



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