[jira] [Created] (FLINK-7957) Add MetricGroup#getLogicalScope

[Shang Yuanchun (Jira)]

Chesnay Schepler created FLINK-7957:
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             Summary: Add MetricGroup#getLogicalScope
                 Key: FLINK-7957
                 URL: https://issues.apache.org/jira/browse/FLINK-7957
             Project: Flink
          Issue Type: Improvement
          Components: Metrics
    Affects Versions: 1.4.0
            Reporter: Chesnay Schepler
            Assignee: Chesnay Schepler
             Fix For: 1.4.0


Various reporters make use of a generalized scope string (e.g. "taskmanager.job.task.<metricname>"). This string can be generated with {{AbstractMetricGroup#getLogicalScope}}, which is however an internal API. As a result, the access pattern currently looks like this:

{code}
((FrontMetricGroup<AbstractMetricGroup<?>>)group).getLogicalScope(CHARACTER_FILTER, '.')
{code}

Given the wide-spread of this kind of scope i propose to move it into the MetricGroup interface.



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