[jira] [Commented] (BEAM-6829) Duplicate metric warnings clutter log

["Maximilian Michels (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/BEAM-6829?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16840405#comment-16840405 ] 

Maximilian Michels commented on BEAM-6829:
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This is due to an Executable Stage receiving metrics from multiple fused transforms. The current "legacy" metrics model assumes that we have an operator with a unique metrics namespace for each transform. I would suggest to use Flink's metric groups to add a sub group for every transform. Alternatively, we could include the transform name in the metric name.

> Duplicate metric warnings clutter log
> -------------------------------------
>
>                 Key: BEAM-6829
>                 URL: https://issues.apache.org/jira/browse/BEAM-6829
>             Project: Beam
>          Issue Type: Bug
>          Components: runner-flink
>    Affects Versions: 2.11.0
>            Reporter: Thomas Weise
>            Priority: Major
>              Labels: portability
>
> Logs fill up quickly with these warnings: 
> {code:java}
> WARN org.apache.flink.metrics.MetricGroup - Name collision: Group already contains a Metric with the name ...{code}



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