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Posted to issues@flink.apache.org by "Stephan Ewen (JIRA)" <ji...@apache.org> on 2015/12/01 09:46:11 UTC

[jira] [Resolved] (FLINK-3084) File State Backend should not write very small state into files

     [ https://issues.apache.org/jira/browse/FLINK-3084?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stephan Ewen resolved FLINK-3084.
---------------------------------
    Resolution: Fixed

Fixed via d1ea365ef1fa979d40532bf3f114fc03284164bc

> File State Backend should not write very small state into files
> ---------------------------------------------------------------
>
>                 Key: FLINK-3084
>                 URL: https://issues.apache.org/jira/browse/FLINK-3084
>             Project: Flink
>          Issue Type: Improvement
>          Components: Streaming
>    Affects Versions: 0.10.0
>            Reporter: Stephan Ewen
>            Assignee: Stephan Ewen
>             Fix For: 1.0.0
>
>
> Currently, the {{FsStateBackend}} writes all state into files. Some state (like Kafka Offsets) is so small that it adds unnecessary overhead, and sometimes the checkpointed file handles are larger than the actual state.
> Small state (below a certain threshold, say 1 KB) should not be stored in files, but directly in the state handles.



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