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IC77142: MEMORY LEAK IN THE APPLICATIONS SHARED HEAP WITH DB2_APM_PERFORMANCE ENABLED.

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • A dynamic SQL workload with registry variable
    DB2_APM_PERFORMANCE enabled can lead to a memory leak in the
    Applications Shared heap.   This can be observed with database
    snapshots (look for growth in the Applications Shared Heap) or
    with db2pd -db <dbname> mempools (look for increase over time in
    appshrh).
    

Local fix

  • disable DB2_APM_PERFORMANCE
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * All                                                          *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See error description.                                       *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Upgrade to DB2 9.7 FP5 or higher                             *
    ****************************************************************
    

Problem conclusion

  • Problem Fixed in DB2 Version 9.7 Fix Pack 5
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC77142

  • Reported component name

    DB2 FOR LUW

  • Reported component ID

    DB2FORLUW

  • Reported release

    970

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2011-06-23

  • Closed date

    2012-03-13

  • Last modified date

    2012-03-13

  • 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

    DB2 FOR LUW

  • Fixed component ID

    DB2FORLUW

Applicable component levels

  • R970 PSN

       UP

  • R970 PSY

       UP



Document information

More support for: DB2 for Linux, UNIX and Windows

Software version: 9.7

Reference #: IC77142

Modified date: 13 March 2012