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IV14402: WMB V7(USING WMQ PUBSUB) SUBSCRIPTION RESP FOR SUBSCRIPTION REQ WITH UNKNOWN SUBSCRIPTION QUEUE CONTAINS ONLY PSC & PSCR FOLDERS

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APAR status

  • Closed as program error.

Error description

  • With Message Broker 7 (which uses the Publish-Subscribe engine
    of WebSphere MQ), the subscription response for a subscription
    request with an unknown subscription queue contains only the psc
    and the pscr folders. All other folders are removed from the
    request. This behavior is different compared to the behavior of
    Message Broker 6.1.  In WMB 6.1, the subscription response
    contains all folders from the request.
    .
    When a negative reply message is sent to subscription request, a
    reply message is built with an RFH2 header containing the psc
    and pscr folders, and does not include the message data. This
    matches the documented behavior:
    http://publib.boulder.ibm.com/infocenter/wmqv7/v7r0/topic/com.
    ibm.mq.amqnar.doc/ps23050_.htm
    .
    The response message is contained within the NameValueData field
    of the MQRFH2 header, in a <pscr> folder.
    .
    In the case of a warning or error, the response message contains
    the <psc> folder from the command message as well as the <pscr>
    folder.  The message data, if any, is not contained in the queue
    manager response message.
    .
    What is not clear from this documentation is whether the message
    should also contain any other folders from the original request
    RFH2 header.  At the moment MQ does not include them in the
    response message it builds, however Message Broker does include
    these folders. This difference in behavior is undesirable when
    migrating to MQ/MB v7 and since Message Broker is the reference
    for RFH2 behavior this APAR brings MQ inline with Message
    Broker.
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    All users of WebSphere MQ Version 7
    
    Platforms affected:
    All Distributed (iSeries, all Unix and Windows)
    ****************************************************************
    PROBLEM SUMMARY:
    When a queued pubsub command fails and a negative response
    message has been requested, the message is constructed
    containing only the psc folder containing the failing command,
    and the pscr folder containing the error response. Any other
    folders in the original request message's RFH2 header are not
    included in the response message.
    

Problem conclusion

  • The negative response message will now contain all folders from
    the original RFH2 header (including the psc folder), in
    addition to the pscr response folder.
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
                       v7.0
    Platform           Fix Pack 7.0.1.10
    --------           --------------------
    Windows            7.0.1.10
    AIX                7.0.1.10
    HP-UX (PA-RISC)    7.0.1.10
    HP-UX (Itanium)    7.0.1.10
    Solaris (SPARC)    7.0.1.10
    Solaris (x86-64)   7.0.1.10
    iSeries            7.0.1.10
    Linux (x86)        7.0.1.10
    Linux (x86-64)     7.0.1.10
    Linux (zSeries)    7.0.1.10
    Linux (Power)      7.0.1.10
    
                       v7.1
    Platform           Fix Pack 7.1.0.2
    --------           --------------------
    Windows            7.1.0.2
    AIX                7.1.0.2
    HP-UX (Itanium)    7.1.0.2
    Solaris (SPARC)    7.1.0.2
    Solaris (x86-64)   7.1.0.2
    iSeries            7.1.0.2
    Linux (x86)        7.1.0.2
    Linux (x86-64)     7.1.0.2
    Linux (zSeries)    7.1.0.2
    Linux (Power)      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

    IV14402

  • Reported component name

    WMQ AIX V7

  • Reported component ID

    5724H7221

  • Reported release

    701

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-01-31

  • Closed date

    2012-07-09

  • Last modified date

    2012-07-09

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

    PM53766

  • 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

  • R701 PSY

       UP

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Document Information

Modified date:
09 July 2012