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Posted to issues@flink.apache.org by "Matthias (Jira)" <ji...@apache.org> on 2020/10/30 16:49:00 UTC

[jira] [Assigned] (FLINK-19904) Update documentation to address difference between -Xmx and the metric for maximum heap

     [ https://issues.apache.org/jira/browse/FLINK-19904?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matthias reassigned FLINK-19904:
--------------------------------

    Assignee: Matthias

> Update documentation to address difference between -Xmx and the metric for maximum heap
> ---------------------------------------------------------------------------------------
>
>                 Key: FLINK-19904
>                 URL: https://issues.apache.org/jira/browse/FLINK-19904
>             Project: Flink
>          Issue Type: Improvement
>          Components: Documentation, Runtime / Metrics
>    Affects Versions: 1.10.2, 1.11.2
>            Reporter: Matthias
>            Assignee: Matthias
>            Priority: Minor
>             Fix For: 1.12.0
>
>
> We observed a difference between the configured maximum heap and the maximum heap returned by the metric system. This is caused by the used garbage collection (see [this blogpost|https://plumbr.io/blog/memory-leaks/less-memory-than-xmx] for further details).
> We should make the user aware of this in the documentation mentioning it in the memory configuration and the metrics page.



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