PM23630: FAILED TO ACCESS SESSION AFTER RESTARTING XC10.

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • eXtreme Scale clients fail with ArrayIndexOutOfBoundsException.
    Here's an example exception
    stack:
    [6/30/10 10:57:20:092 EDT] 00000041 SessionImpl   3   An
    exception occurred
    while attempting to process a transaction
    
    com.ibm.websphere.objectgrid.ObjectGridRuntimeException:
    java.lang.ArrayIndexOutOfBoundsException: Array index out of
    range: -105
        at
    com.ibm.ws.objectgrid.map.BaseMap.bytesToObject(BaseMap.java:967
    3)
        at
    com.ibm.ws.objectgrid.map.BaseMap.getValueCopyForTransaction(Bas
    eMap.java:3868)
        at
    com.ibm.ws.objectgrid.DiffMapValue.getCurrentValue(DiffMapValue.
    java:402)
        at com.ibm.ws.objectgrid.DiffMap.get(DiffMap.java:718)
        at
    com.ibm.ws.objectgrid.ObjectMapImpl.get(ObjectMapImpl.java:424)
        at
    com.ibm.ws.objectgrid.ObjectMapImpl.getForUpdate(ObjectMapImpl.j
    ava:568)
        at
    com.ibm.ws.xs.sessionmanager.SessionReplicationManager.run(Sessi
    onReplicationManager.java:338)
        at java.util.Timer$TimerImpl.run(Timer.java:291)
    Caused by: java.lang.ArrayIndexOutOfBoundsException: Array
    index out of range: -105
        at
    com.ibm.ws.objectgrid.plugins.SerializationInfoCacheImpl.lookupB
    yIndex(SerializationInfoCacheImpl.java:130)
        at
    com.ibm.ws.objectgrid.map.BaseMap.bytesToObject(BaseMap.java:962
    3)
        ... 7 more
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All WebSphere eXtreme Scale users.          *
    ****************************************************************
    * PROBLEM DESCRIPTION: An ArrayIndexOutOfBoundsException       *
    *                      exception displays with the             *
    *                      following message:                      *
    *                      "Array index out of range: -"           *
    *                                                              *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    The data structure that is used to hold the map value classes
    encountered errors when multiple value types are stored in a
    map.
    

Problem conclusion

  • An future interim fix for WebSphere
    eXtreme Scale version 7.1 will correct the problem.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PM23630

  • 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

    2010-09-30

  • Closed date

    2010-10-29

  • Last modified date

    2010-10-29

  • 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

  • R710 PSY

       UP



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Document information


More support for:

WebSphere eXtreme Scale
General

Software version:

6.1

Reference #:

PM23630

Modified date:

2010-10-29

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