[jira] [Created] (FLINK-7818) Synchronize MetricStore access in the TaskManagersHandler

[Shang Yuanchun (Jira)]

Till Rohrmann created FLINK-7818:
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             Summary: Synchronize MetricStore access in the TaskManagersHandler
                 Key: FLINK-7818
                 URL: https://issues.apache.org/jira/browse/FLINK-7818
             Project: Flink
          Issue Type: Bug
          Components: Metrics, REST
    Affects Versions: 1.3.2, 1.4.0
            Reporter: Till Rohrmann
            Assignee: Till Rohrmann


The {{TaskManagersHandler}} accesses the {{MetricStore}} when details for a single {{TaskManager}} are requested. The access is not synchronized which can be problematic because the {{MetricStore}} is not thread safe.

I propose to add synchronization.



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