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https://issues.apache.org/jira/browse/FLINK-21765?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Till Rohrmann reassigned FLINK-21765:
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Assignee: Chesnay Schepler
> Remove implementation-specific MetricGroup parents
> --------------------------------------------------
>
> Key: FLINK-21765
> URL: https://issues.apache.org/jira/browse/FLINK-21765
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Metrics
> Reporter: Chesnay Schepler
> Assignee: Chesnay Schepler
> Priority: Minor
> Labels: auto-deprioritized-major, auto-unassigned
> Fix For: 1.14.0
>
>
> MetricGroups currently form a bi-directly graph, usually with explicit
> requirements that type the parent must have. For example, an OperatorMG has a
> hard requirement that the parent is a TaskMG.
> As a result they are quite inflexible, which particular shows in tests, as
> you can't just create one metric group, but have to build an entire tree.
> The end goal of this ticket is to remove AbstractMetricGroup#parent, and
> along the way we'll decouple the various MG implementations from each other.
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