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IC70698: WEBSPHERE MQ V7 AUTO DEFINED SENDER CHANNEL TO PARTIAL REPOSITORY MANAGERS ARE STARTED DURING A REFRESH CLUSTER

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APAR status

  • Closed as program error.

Error description

  • When a refresh cluster is performed on a WebSphere MQ V7
    partial repository queue manager, auto defined sender channels
    to other queue managers other than full repositories might be
    started even though they were not running before the REFRESH
    CLUSTER command is issued. The local queue manager CLUSRCVR
    will be published using these channels as a result of the
    REFRESH CLUSTER command being issued.
    
    The problem however is not just specific to REFRESH CLUSTER.
    Actions such as restarting the queue manager or the internal
    maintenance cycles being executed which trigger a publication
    to take place, can cause these channels to start.
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    Users of WebSphere MQ V7 queue manager clusters using the
    REFRESH CLUSTER command.
    
    Platforms affected:
    All Distributed (iSeries, all Unix and Windows)
    ****************************************************************
    PROBLEM SUMMARY:
    The problem was caused by the addition of code in V7 to handle
    publication of local information for Publish Subscribe clusters
    as well as normal cluster configuration information to
    connected repository queue managers. This additional code
    incorrectly permitted the publication of local information to
    normal clusters based on a false positive check made
    specifically for publish subscribe clusters which included
    partial repository queue managers among the possible
    destination choices. As a result of mistakenly indicating the
    publication is to take place to the partial repository, the
    channel to it was started because it was not already in the
    running state.
    
    The problem can also arise due to the repository maintenance
    routines triggering a publication of the local cluster
    receiver channel.
    

Problem conclusion

  • The problem was fixed by removing the code branch that permitted
    the publication to take place for standard clustering based on
    conditions specifically intended for publish subscribe clusters.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
                       v7.0
    Platform           Fix Pack 7.0.1.4
    --------           --------------------
    Windows            U200323
    AIX                U835793
    HP-UX (PA-RISC)    U836458
    HP-UX (Itanium)    U836463
    Solaris (SPARC)    U836459
    Solaris (x86-64)   U836465
    iSeries            tbc_p700_0_1_4
    Linux (x86)        U836460
    Linux (x86-64)     U836464
    Linux (zSeries)    U836461
    Linux (Power)      U836462
    
    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

    IC70698

  • 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

    2010-08-23

  • Closed date

    2010-08-25

  • Last modified date

    2010-08-25

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

    PM21215

Fix information

  • Fixed component name

    WMQ WINDOWS V7

  • Fixed component ID

    5724H7220

Applicable component levels

  • R700 PSY

       UP

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Document Information

Modified date:
25 August 2010