PM21467: OUT OF MEMORY CONDITION OCCURS ON WEBSPHERE EXTREME SCALE SERVERS

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • outOfMemory condition occurs on WebSphere eXtreme Scale servers,
    with the following exception in the FFDC logs
    
    ------Start of DE processing------ = [8/25/10 13:18:47:069 PDT]
    , key = java.lang.IllegalStateException
    com.ibm.ws.objectgrid.replication.PrimaryShardImpl$1.register
    388
    Exception = java.lang.IllegalStateException
    Source =
    com.ibm.ws.objectgrid.replication.PrimaryShardImpl$1.register
    probeid = 388
    Stack Dump = java.lang.IllegalStateException: Couldn't update
    record [Element:
    fetch_ealert_preferences_responselrhevr0fwj0kdjdzksedjqh6ypw=d7b
    dbabe-07e8-3281-f0f5-5675eae2ac50
    com.xxxx.yyyy.common.cache.entry.GenericEntry@7c007c0]!
            at
    com.ibm.ws.objectgrid.util.CheckpointHashtable$CheckpointSystemM
    ap.applyPMap(CheckpointHashtable.java:139)
            at
    com.ibm.ws.objectgrid.util.CheckpointHashtable.apply(CheckpointH
    ashtable.java:599)
            at
    com.ibm.ws.objectgrid.map.BaseMap.removeCheckpointMap(BaseMap.ja
    va:5889)
            at
    com.ibm.ws.objectgrid.map.BaseMap.registerLogSequenceListener(Ba
    seMap.java:5732)
            at
    com.ibm.ws.objectgrid.ObjectGridImpl.registerLogSequenceListener
    (ObjectGridImpl.java:2086)
            at
    com.ibm.ws.objectgrid.replication.PrimaryShardImpl$1.run(Primary
    ShardImpl.java:620)
    

Local fix

  • N/A
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All users of WebSphere eXtreme Scale        *
    ****************************************************************
    * PROBLEM DESCRIPTION: Over time, an outOfMemory condition     *
    *                      occurs on                               *
    *                      WebSphere eXtreme Scale servers,        *
    *                      with java.lang.IllegalStateException    *
    *                      FFDC entries logged.                    *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    During replication of data from primary shard to replica
    shard, an error condition exists that causes an outOfMemory
    condition to occur on both primary and replica servers.
    

Problem conclusion

  • The eXtreme Scale runtime was updated to handle the error
    condition to avoid getting into the leak condition.  This
    change will be published in future cumulative fixes for the
    Version 6.1, Version 7.0, and Version 7.1 releases.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PM21467

  • Reported component name

    XD EXTREME SCAL

  • Reported component ID

    5724J3402

  • Reported release

    610

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2010-08-30

  • Closed date

    2010-09-10

  • Last modified date

    2010-10-25

  • 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

    XD EXTREME SCAL

  • Fixed component ID

    5724J3402

Applicable component levels

  • R610 PSY

       UP

  • R700 PSY

       UP

  • R710 PSY

       UP



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Document information


More support for:

WebSphere eXtreme Scale
General

Software version:

6.1

Reference #:

PM21467

Modified date:

2010-10-25

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