IV43443: WMQ V7.0/V7.1 CLIENT SUPPORTPACS ARE MISSING XA LIBRARIES

WebSphere MQ V7.0 Fix Pack 7.0.1.12
Fix Pack 7.1.0.5 for WebSphere MQ V7.1

APAR status

• Closed as program error.

Error description

• When attempting to use XA functionality with the WMQ Client
  SupportPac the user receives the following error:
  
  "Dependent module /usr/mqm/lib/libmqcxa.a(libmqcxa.o) could not
  be loaded."
  
  On Windows the following error message is output into the
  windows error reporting logs:
  
  "A required dll mqcxa.dll could not be found"
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  All users of WebSphere MQ 7.0.1 or 7.1.0 who are using the
  Client SupportPac (MQC7/MQC71), who are using an application
  which attempts to make use of XA functionality.
  
  This APAR is not applicable to users of the WebSphere MQ
  Resource Adapter, see APAR IV48023 for details on this
  component.
  
  Platforms affected:
  All Distributed (iSeries, all Unix and Windows)
  ****************************************************************
  PROBLEM SUMMARY:
  In order to use XA functionality to allow for MQ to participate
  in distributed two-phase transactions, MQ requires certain
  libraries.
  
  When WebSphere MQ 7.0 and 7.1 first shipped, this functionality
  was provided by the WebSphere MQ Extended Transactional Client
  component of the product.
  
  With the announcement of WebSphere MQ V7.5, the WebSphere MQ
  Extended Transactional Client is available for use in all
  client deployments without additional entitlement. This
  includes all supported versions of WebSphere MQ client
  connecting to any supported version of WebSphere MQ queue
  manager.
  
  As part of this announcement, customers using WebSphere MQ
  V7.0.1 and V7.1 gain the benefit of use of the WebSphere MQ
  Extended Transactional Client with no additional entitlement
  required.
  
  For additional information on this, please see the WebSphere MQ
  V7.5 announcement letter:
  
  http://www.ibm.com/common/ssi/cgi-bin/ssialias?infotype=AN&subt
  ype=CA&htmlfid=897/ENUS212-091
  
  
  In order to obtain these XA specific libraries for client
  installations, the MQ Client SupportPacs MQC7/MQC71 was
  required to includes the necessary files.
  

Problem conclusion

• The WebSphere MQ Client SupportPacs (MQC7 and MQC71)
  installations have been updated so that they now include the
  necessary XA libraries to permit applications to include WMQ in
  distributed transactions.
  
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v7.0       7.0.1.12
  v7.1       7.1.0.5
  
  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:

• 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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