[jira] [Created] (FLINK-22675) Add an interface method ShuffleMaster#close

[Shang Yuanchun (Jira)]

Jin Xing created FLINK-22675:
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             Summary: Add an interface method ShuffleMaster#close
                 Key: FLINK-22675
                 URL: https://issues.apache.org/jira/browse/FLINK-22675
             Project: Flink
          Issue Type: Sub-task
          Components: Runtime / Network
            Reporter: Jin Xing


When extending remote shuffle service based on 'pluggable shuffle service', 
ShuffleMaster talks with remote cluster by network connection. This Jira proposes to add an interface method – ShuffleMaster#close, which can be extended and do cleanup work and will be called when Flink application is closed.



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