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IC58971: TOPIC OBJECTS CAN BE CREATED WITH SAME NON-ZERO LENGTH TOPICSTR

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APAR status

  • Closed as program error.

Error description

  • Topic objects should not be able to be created with the same
    non-zero length topic string. Being able to do so leads to the
    following FDC when the queue manager is restarted:
    Probe Id          :- KN328060
    Component         :- kpiInitTopicTree
    ExecCtrlrMain
    zxcPostInitialiseSetup
    kpiInitTopicTree
    xcsFFST
    
    When the queue manager is then ended the following FDC is
    generated:
    Probe Id          :- XC130031
    Component         :- xehExceptionHandler
    ExecCtrlrMain
    zxcCleanUp
    zxcCleanupRepository
    xcsFreeMem
    xcsFFST
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    Users who attempt to define multiple topic objects with the
    same non-zero length topic string.
    
    Platforms affected:
    All Distributed (iSeries, all Unix and Windows)
    ****************************************************************
    PROBLEM SUMMARY:
    It is possible to alter the topic string of an existing topic
    object with the DEFINE TOPIC() TOPICSTR() REPLACE command. This
    enables multiple topic objects to have the same non-zero length
    topic string. Having multiple topic objects with the same non-
    zero length topic string causes problems for the queue manager.
    
    It should also be possible to redefine the system topic objects
    with a zero length topic string.
    

Problem conclusion

  • DEFINE TOPIC() TOPICSTR() REPLACE is updated to prevent the
    topic string of an existing topic object from being altered.
    This prevents multiple topic objects from having the same non-
    zero length topic string.
    
    The code is also updated to allow the following topic objects
    to be defined with a zero length topic string:
    SYSTEM.BASE.TOPIC
    SYSTEM.DEFAULT.TOPIC
    SYSTEM.BROKER.DEFAULT.SUBPOINT
    SYSTEM.BROKER.DEFAULT.STREAM
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
                       v7.0
    Platform           Fix Pack 7.0.0.2
    --------           --------------------
    Windows            U200302
    AIX                U822354
    HP-UX (PA-RISC)    U822349
    HP-UX (Itanium)    U822351
    Solaris (SPARC)    U822353
    Solaris (x86-64)   U822394
    iSeries            tbc
    Linux (x86)        U822348
    Linux (x86-64)     U822393
    Linux (zSeries)    U822352
    Linux (Power)      U822350
    
    The latest available maintenance can be obtained from
    'Websphere MQ Recommended Fixes'
    http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037
    
    If the maintenance level is not yet available, information on
    its planned availability can be found in 'Websphere MQ
    Planned Maintenance Release Dates'
    http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309
    ---------------------------------------------------------------
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC58971

  • Reported component name

    WMQ WINDOWS V7

  • Reported component ID

    5724H7220

  • Reported release

    700

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2008-11-18

  • Closed date

    2008-11-28

  • Last modified date

    2008-11-28

  • 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

    WMQ WINDOWS V7

  • Fixed component ID

    5724H7220

Applicable component levels

  • R700 PSY

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Document Information

Modified date:
28 November 2008