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https://issues.apache.org/jira/browse/FLINK-7692?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16286098#comment-16286098
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ASF GitHub Bot commented on FLINK-7692:
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Github user zentol commented on the issue:
https://github.com/apache/flink/pull/5115
merging.
> Support user-defined variables in Metrics
> -----------------------------------------
>
> Key: FLINK-7692
> URL: https://issues.apache.org/jira/browse/FLINK-7692
> Project: Flink
> Issue Type: Improvement
> Components: Metrics
> Affects Versions: 1.4.0
> Reporter: Chesnay Schepler
> Assignee: Wei-Che Wei
> Priority: Minor
> Fix For: 1.5.0
>
>
> Reporters that identify metrics with a set of key-value pairs are currently
> limited to the variables defined by Flink, like the taskmanager ID, with
> users not being able to supply their own.
> This is inconsistent with reporters that use metric identifiers that freely
> include user-defined groups constructted via {{MetricGroup#addGroup(String
> name)}}.
> I propose adding a new method {{MetricGroup#addGroup(String key, String
> name)}} that adds a new key-value pair to the {{variables}} map in it's
> constructor. When constructing the metric identifier the key should be
> included as well, resulting in the same result as when constructing the
> metric groups tree via {{group.addGroup(key).addGroup(value)}}.
> For this a new {{KeyedGenericMetricGroup}} should be created that resembles
> the unkeyed version, with slight modifications to the constructor and
> {{getScopeComponents}} method.
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