IBM Support

IV23325: WMQ 7.0.1 : A CLUSTER SENDER CHANNEL DOESN'T TRIGGER WHEN A MESSAGE IS PLACED ON THE SYSTEM.CLUSTER.TRANSMIT.QUEUE

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Intermittently the customer finds that a cluster sender channel
    fails to start when a message is placed on the
    SYSTEM.CLUSTER.TRANSMIT.QUEUE (with the correct channel name in
    the CorrelId field). No errors are logged. The channel has to be
    started manually to allow the message to flow. A trace shows
    kqiFastNetStartChannels being called but we exit immediately
    (without any indication as to why).
    

Local fix

  • Ensure that nothing is browsing the
    SYSTEM.CLUSTER.TRANSMIT.QUEUE when a message destined to flow
    over a channel that is inactive is placed on it.
    

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    Users putting messages in syncpoint to cluster queues while an
    app is browsing the cluster transmission queue.
    
    Platforms affected:
    All Distributed (iSeries, all Unix and Windows)
    ****************************************************************
    PROBLEM SUMMARY:
    A check to determine whether any process was reading messages
    for the channel from the cluster transmission queue did not
    cater for the case where an application was only browsing the
    queue.
    

Problem conclusion

  • Refine the test so that browsing applications are taken into
    account.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
                       v7.0
    Platform           Fix Pack 7.0.1.10
    --------           --------------------
    Windows            U200352
    AIX                U853055
    HP-UX (PA-RISC)    U853082
    HP-UX (Itanium)    U853087
    Solaris (SPARC)    U853083
    Solaris (x86-64)   U853089
    iSeries            7.0.1.10
    Linux (x86)        U853084
    Linux (x86-64)     U853088
    Linux (zSeries)    U853085
    Linux (Power)      U853086
    
                       v7.1
    Platform           Fix Pack 7.1.0.2
    --------           --------------------
    Windows            U200351
    AIX                U853019
    HP-UX (Itanium)    U853052
    Solaris (SPARC)    U853048
    Solaris (x86-64)   U853054
    iSeries            7.1.0.2
    Linux (x86)        U853049
    Linux (x86-64)     U853053
    Linux (zSeries)    U853050
    Linux (Power)      U853051
    
    Platform           v7.5
    --------           --------------------
    Multiplatforms     7.5.0.1
    
    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

    IV23325

  • Reported component name

    WMQ AIX V7

  • Reported component ID

    5724H7221

  • Reported release

    700

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-06-20

  • Closed date

    2012-07-19

  • Last modified date

    2013-02-13

  • 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 AIX V7

  • Fixed component ID

    5724H7221

Applicable component levels

  • R700 PSY

       UP

[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSCPQ63","label":"APAR \/ Maintenance"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.0","Edition":"","Line of Business":{"code":"","label":""}}]

Document Information

Modified date:
13 February 2013