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  1. Hive
  2. HIVE-19624

the method closeSession of SessionManager has a synchronized, is it able to be removed?

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Details

    • Wish
    • Status: Closed
    • Minor
    • Resolution: Duplicate
    • 2.1.1
    • 4.0.0-alpha-2
    • HiveServer2
    • None

    Description

      The methods closeSession of 

      org.apache.hive.service.cli.session.SessionManager use 

      synchronized for thread safe, i looked at the code and wonder why there's need for synchronized.

      Because closeSession sometimes use the hadoop ipc call and takes too much time to response, so if it is possible to remove the keyword synchronized.

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          is fixed by

          Bug - A problem which impairs or prevents the functions of the product. HIVE-22165 Synchronisation introduced by HIVE-14296 on SessionManager.closeSession causes high latency in a busy hive server

          • Major - Major loss of function.
          • Closed

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              ngangam Naveen Gangam
              xulongfetion xulongfetion
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                Created:
                Updated:
                Resolved: