Fixes are available
APAR status
Closed as program error.
Error description
When using the Async Consume functionality, an XMS client is not able to retrieve large messages from WebSphere MQ Version 7.1 or 7.5 queue managers. It seems that the XMS client always expects to retrieve a message with MQMD.Version 2, even if the customer does not specify it to be Version 2. The issue encountered is that messages are being returned with a Version 1 on larger messages. Smaller messages are returned with a Version 2. This is a separate issue from the APAR IV53820.
Local fix
Problem summary
**************************************************************** USERS AFFECTED: All users of asynchronous consume who are using applications which require or expect a specific version level of the MQMD header for the messages returned to them. The XMS client is an example which supports version 2. Platforms affected: MultiPlatform **************************************************************** PROBLEM SUMMARY: When a multi-phase get was required internally to fetch a message, due to the need to increase the internal buffer size, the logic which ensures the MQMD returned is of the correct version was bypassed. Due to this code being bypassed, an MQMD could be provided to the client application which is not of the expected version.
Problem conclusion
The flow of execution has been altered to ensure that the logic responsible for setting the MQMD version is not bypassed. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level v7.1 7.1.0.6 v7.5 7.5.0.4 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
IV55911
Reported component name
WMQ AIX V7
Reported component ID
5724H7221
Reported release
710
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2014-02-26
Closed date
2014-03-05
Last modified date
2014-03-05
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
R710 PSY
UP
[{"Line of Business":{"code":"LOB45","label":"Automation"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSFKSJ","label":"WebSphere MQ"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.1"}]
Document Information
Modified date:
01 October 2021