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  1. Java Driver
  2. JAVA-787

DBTCPConnector._checkWriteError () consume a PoolOutputBuffer not returned to SimplePool

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Fixed
    • Affects Version/s: 2.9.3
    • Fix Version/s: 2.11.0
    • Component/s: Performance
    • Labels:
    • Environment:
      ubuntu10, jdk1.6,mongodb2.0.3, mongo-java-driver-2.9.3

      Description

      MongoDB Java Driver every time execution update method will from to get a PoolOutputBuffer in SimplePool, returned to the pool after use, but when set WriteConcern for SAFE mode, the drive itself will perform DBTCPConnector._checkWriteError () method to check the safety of the method from the pool made ​​a PoolOutputBuffer, after not returned to the pool, this will consume a PoolOutputBuffer, and this PoolOutputBuffer default at least occupy more than 50KByte memory space, and a tremendous waste of resources.When high concurrent to monitoring jvm memory usage knew terror Eden area is growing very fast.

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            Assignee:
            jeff.yemin Jeffrey Yemin
            Reporter:
            barrytdc barry
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              Updated:
              Resolved: