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https://issues.apache.org/jira/browse/FLINK-9741?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Till Rohrmann updated FLINK-9741:
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Fix Version/s: 1.8.0
> Register JVM metrics for each JM separately
> -------------------------------------------
>
> Key: FLINK-9741
> URL: https://issues.apache.org/jira/browse/FLINK-9741
> Project: Flink
> Issue Type: Improvement
> Components: Distributed Coordination, Metrics
> Affects Versions: 1.5.0, 1.6.0
> Reporter: Chesnay Schepler
> Assignee: Chesnay Schepler
> Priority: Major
> Fix For: 1.7.0, 1.8.0
>
>
> Currently, the {{Dispatcher}} contains a {{JobManagerMetricGroup}} on which
> the JVM metrics are registered. the JobManagers only receive a
> {{JobManagerJobMetricGroup}} and don't register the JVM metrics.
> As the dispatcher and jobmanagers currently run in the same jvm, neither
> exposing their IDs to the metric system, this doesn't cause problem _right
> now_ as we can't differentiate between them anyway, but it will bite us down
> the line if either of the above assumptions is broken.
> For example, with the proposed exposure of JM/Dispatcher IDs in FLINK-9543 we
> would not expose JVM metrics tied to a JM, but only the Dispatcher.
> I propose to register all JVM metrics for each jobmanager separately to
> future proof the whole thing.
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