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https://issues.apache.org/jira/browse/FLINK-7876?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Till Rohrmann closed FLINK-7876.
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Resolution: Fixed
Fix Version/s: 1.4.0
Fixed via d45b941280155a67aed3f3518b2a05eedc1dab2e
> Register TaskManagerMetricGroup under ResourceID instead of InstanceID
> ----------------------------------------------------------------------
>
> Key: FLINK-7876
> URL: https://issues.apache.org/jira/browse/FLINK-7876
> Project: Flink
> Issue Type: Improvement
> Components: Metrics
> Affects Versions: 1.4.0
> Reporter: Till Rohrmann
> Assignee: Till Rohrmann
> Priority: Minor
> Labels: flip-6
> Fix For: 1.4.0
>
>
> Currently, the {{TaskManager}} registers the {{TaskManagerMetricGroup}} under
> its {{InstanceID}} and thereby binding its metrics effectively to the
> lifetime of its registration with the {{JobManager}}. This has also
> implications how the REST handler retrieve the TaskManager metrics, namely by
> its {{InstanceID}}.
> I would actually propose to register the {{TaskManagerMetricGroup}} under the
> {{TaskManager}}/{{TaskExecutor}} {{ResourceID}} which is valid over the whole
> lifetime of the {{TaskManager}}/{{TaskExecutor}}. That way we would also be
> able to query metrics independent of the connection status to the
> {{JobManager}}.
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