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IC83733: WMQ EXPLORER V7.1 : QUEUE MANAGERS NOT VISIBLE IN NAVIGATOR AFTER STOPPING AND STARTING WMQ EXPLORER.

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APAR status

  • Closed as program error.

Error description

  • A system was migrated from WebSphere MQ V6 to V7.1, including
    the WebSphere MQ Explorer component.
    
    When the user logs on to the Windows server and starts the
    WebSphere MQ Explorer, the queue manager is visible in the
    Navigator.  However when the WebSphere MQ Explorer is stopped
    and restarted, the queue manager is no longer visible.
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    This issue affects users of the WebSphere MQ Explorer V7.0.1 and
    V7.1.
    
    Platforms affected:
    Linux (x86),Linux (x86-64),Windows
    
    ****************************************************************
    PROBLEM SUMMARY:
    A thread synchronisation issue surrounding an internal data
    structure used within the WebSphere MQ Explorer permitted
    concurrent thread access to the data structure.
    
    The consequence of this was that the list of queue managers to
    be displayed within the WebSphere MQ Explorer may have ended up
    as an empty list, even when there was previously queue managers
    displayed.
    

Problem conclusion

  • Thread synchronisation was enhanced around the access of the
    internal data structure, which prevents further concurrent
    access.
    
    In addition, additional trace points were also added to indicate
    the state of the lock acquisition to assist with future
    diagnostics of problems encountered in this area.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
                       v7.0
    Platform           Fix Pack 7.0.1.10
    --------           --------------------
    Windows            7.0.1.10
    Linux (x86)        7.0.1.10
    Linux (x86-64)     7.0.1.10
    
                       v7.1
    Platform           Fix Pack 7.1.0.2
    --------           --------------------
    Windows            7.1.0.2
    Linux (x86)        7.1.0.2
    Linux (x86-64)     7.1.0.2
    
    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

    IC83733

  • Reported component name

    WMQ WINDOWS V7

  • Reported component ID

    5724H7220

  • Reported release

    710

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-05-24

  • Closed date

    2012-06-28

  • Last modified date

    2012-06-28

  • 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

  • R710 PSY

       UP

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Document Information

Modified date:
28 June 2012