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

Fix Pack 7.1.0.2 for WebSphere MQ V7.1
WebSphere MQ V7.0 Fix Pack 7.0.1.10
WebSphere MQ V7.0.1 for i5/OS Fix Pack 7.0.1.10

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 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

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