[jira] [Created] (FLINK-4210) Move close()/isClosed() out of MetricGroup interface

[Chesnay Schepler (JIRA)]

Chesnay Schepler created FLINK-4210:
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             Summary: Move close()/isClosed() out of MetricGroup interface
                 Key: FLINK-4210
                 URL: https://issues.apache.org/jira/browse/FLINK-4210
             Project: Flink
          Issue Type: Improvement
          Components: Metrics
    Affects Versions: 1.1.0
            Reporter: Chesnay Schepler
            Assignee: Chesnay Schepler
            Priority: Minor
             Fix For: 1.1.0


The (user-facing) MetricGroup interface currently exposes a close() and 
isClosed() method which generally users shouldn't need to call. They are an 
internal thing, and thus should be moved into the AbstractMetricGroup class.



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