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Posted to issues@flink.apache.org by "Stephan Ewen (JIRA)" <ji...@apache.org> on 2018/03/07 20:58:00 UTC

[jira] [Resolved] (FLINK-8876) Improve concurrent access handling in stateful serializers

     [ https://issues.apache.org/jira/browse/FLINK-8876?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stephan Ewen resolved FLINK-8876.
---------------------------------
    Resolution: Fixed

Fixed by resolving all sub-issues

> Improve concurrent access handling in stateful serializers
> ----------------------------------------------------------
>
>                 Key: FLINK-8876
>                 URL: https://issues.apache.org/jira/browse/FLINK-8876
>             Project: Flink
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Stephan Ewen
>            Assignee: Stephan Ewen
>            Priority: Major
>             Fix For: 1.5.0, 1.6.0
>
>
> Some stateful serializers produce incorrect results when accidentally accessed by multiple threads concurrently.
>  To better catch these cases, I suggest to add concurrency checks that are active only when debug logging is enabled, and during test runs.
> This is inspired by Kryo's checks for concurrent access.



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