PM65577: Issuing a clear operation can cause large, but temporary memory utilization on remote domains.

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Issuing a clear operation on a map might cause large, but
    temporary memory utilization on remote domains. In some cases,
    this increase in memory utilization might cause OutOfMemory
    exceptions.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  Users of WebSphere eXtreme Scale that use   *
    *                  the ObjectMap.clear function and have more  *
    *                  than two catalog service domains that are   *
    *                  using multi-master replication.             *
    ****************************************************************
    * PROBLEM DESCRIPTION: Running the ObjectMap.clear operation   *
    *                      in one catalog service domain results   *
    *                      in an OutOfMemoryError exception in     *
    *                      foreign domains.                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    When you run a clear operation on a foreign catalog
    service domain, a problem is identified.  The clear
    operation is applied as a single, large revision if possible.
    When you are applying this single revision to another catalog
    service domain, memory utilization might grow while deleting
    the entries that did not require collision arbitration.
    

Problem conclusion

  • The clear operation was divided into multiple revisions to
    reduce transaction size and memory utilization.
    
    This fix is available in WebSphere eXtreme Scale 8.5 Fix
    Pack 1.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PM65577

  • Reported component name

    WS EXTREME SCAL

  • Reported component ID

    5724X6702

  • Reported release

    850

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-05-25

  • Closed date

    2012-07-11

  • Last modified date

    2013-01-28

  • 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

    WS EXTREME SCAL

  • Fixed component ID

    5724X6702

Applicable component levels

  • R850 PSY

       UP



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Document information


More support for:

WebSphere eXtreme Scale

Software version:

850

Reference #:

PM65577

Modified date:

2013-01-28

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