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JR56444: SERVER RUNS OUT OF MEMORY AND YOU SEE NUMEROUS INSTRUMENTATION RECORDS IN HEAP DUMPS

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APAR status

  • Closed as new function.

Error description

  • After the IBM Business Process Server (BPM) server has been
    running for some time, operations might start to fail.
    The SystemOut.log file shows OutOfMemoryError stack traces.
    Analyzing the heap dumps created by the Java Virtual Machine
    (JVM), you see numerous objects of class
    com.lombardisoftware.instrumentation.core.InstrumentationRecord.
    
    
    About 17gb of a 20gb heap are used by Instrumentation
    records,
    17,579,088,760 (85.58%) [32] 9 class
    com/lombardisoftware/instrumentation/jmx/InstrumentationManager
    0x308e99718
    |- 17,579,088,576 (85.58%) [32] 52 class
    com/lombardisoftware/instrumentation/core/InstrumentationManager
    0x308e932a0
    

Local fix

Problem summary

  • The server captures instrumentation records during runtime to
    provide statistics, such as about the cache utilization, in the
    Process Admin Console.
    The threads that perform process and task operations create
    these records, which are processed to prepare the statistics.
    In certain load scenarios, more records might be created than
    can be processed, leading to out-of-memory errors.
    

Problem conclusion

  • A fix will be included in the IBM Business Process Manager (BPM)
    V8.5.7 2016.09 cumulative fix.
    
    To determine whether the cumulative fix is available and
    download it if it is, complete the following steps on Fix
    Central:
    
    1. Select IBM Business Process Manager with your edition from
    the product selector, the installed version to the fix pack
    level, and your platform, and then click Continue.
    2. Select Text, enter ?cumulative fix?, and click Continue.
    

Temporary fix

Comments

APAR Information

  • APAR number

    JR56444

  • Reported component name

    BPM STANDARD

  • Reported component ID

    5725C9500

  • Reported release

    857

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2016-08-05

  • Closed date

    2016-08-16

  • Last modified date

    2019-03-28

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

Fix information

  • Fixed component name

    BPM STANDARD

  • Fixed component ID

    5725C9500

Applicable component levels

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSFTDH","label":"IBM Business Process Manager Standard"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"857","Edition":"","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]

Document Information

Modified date:
28 March 2019