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  1. Hive
  2. HIVE-22753

Fix gradual mem leak: Operationlog related appenders should be cleared up on errors

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Details

    • Improvement
    • Status: Closed
    • Minor
    • Resolution: Fixed
    • None
    • 4.0.0-alpha-1
    • HiveServer2
    • None

    Description

      In case of exception in SQLOperation, operational log does not get cleared up. This causes gradual build up of HushableRandomAccessFileAppender causing HS2 to OOM after some time.

       

      Allocation tree

       

      Prod instance mem

       

      Each HushableRandomAccessFileAppender holds internal ref to RandomAccessFileAppender which holds a 256 KB bytebuffer, causing the mem leak.

      Related ticket: HIVE-18820

      Attachments

        1. HIVE-22753.1.patch
          0.7 kB
          Rajesh Balamohan
        2. HIVE-22753.2.patch
          3 kB
          Rajesh Balamohan
        3. HIVE-22753.3.patch
          3 kB
          Rajesh Balamohan
        4. HIVE-22753.4.patch
          3 kB
          Rajesh Balamohan
        5. image-2020-01-21-11-14-37-911.png
          776 kB
          Rajesh Balamohan
        6. image-2020-01-21-11-17-59-279.png
          396 kB
          Rajesh Balamohan
        7. image-2020-01-21-11-18-37-294.png
          600 kB
          Rajesh Balamohan

        Issue Links

        causes

        Bug - A problem which impairs or prevents the functions of the product. HIVE-25970 Missing messages in HS2 operation logs

        • Major - Major loss of function.
        • Closed
        is a parent of

        Bug - A problem which impairs or prevents the functions of the product. HIVE-24590 Operation Logging still leaks the log4j Appenders

        • Major - Major loss of function.
        • Closed
        is related to

        Bug - A problem which impairs or prevents the functions of the product. HIVE-17128 Operation Logging leaks file descriptors as the log4j Appender is never closed

        • Major - Major loss of function.
        • Closed

        Bug - A problem which impairs or prevents the functions of the product. HIVE-24569 LLAP daemon leaks file descriptors/log4j appenders

        • Major - Major loss of function.
        • Closed
        relates to

        Bug - A problem which impairs or prevents the functions of the product. HIVE-22127 Query Routing logging appender is leaking resources of RandomAccessFileManager.

        • Major - Major loss of function.
        • Open

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            rajesh.balamohan Rajesh Balamohan Assign to me
            rajesh.balamohan Rajesh Balamohan
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            Dates

              Created:
              Updated:
              Resolved:

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