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[jira] [Created] (FLINK-9917) Remove superfluous lock from SlotSharingManager

Till Rohrmann created FLINK-9917:

             Summary: Remove superfluous lock from SlotSharingManager
                 Key: FLINK-9917
                 URL: https://issues.apache.org/jira/browse/FLINK-9917
             Project: Flink
          Issue Type: Improvement
          Components: JobManager
    Affects Versions: 1.6.0
            Reporter: Till Rohrmann
            Assignee: Till Rohrmann

The {{SlotSharingManager}} uses a lock to synchronize access to some of its fields. Since the component is designed to be used only in a single threaded context, the lock are superfluous and confusing. Therefore, I propose to remove it.

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