Fixes are available
APAR status
Closed as program error.
Error description
An MQGET with MQGMO_COMPLETE_MSG fails to get a segmented messages even though there are segmented messages on the queue which should be delivered and the qstatus shows that there are no uncommitted changes to the queue. This problem is most likely to occur in cases where queues are accessed with considerable time in between each access or on a busy queue manager.
Local fix
n/a
Problem summary
**************************************************************** USERS AFFECTED: WebSphere MQ users using segmented messages. Platforms affected: All Distributed (iSeries, all Unix and Windows) **************************************************************** PROBLEM SUMMARY: When the queue which already has segmented messages is loaded to the memory, messages were being intermittently marked as in-doubt. Thus when an MQGET is subsequently issued, the message which is incorrectly marked as in-doubt is eliminated as a candidate message for the MQGET call. Thus preventing the message from being consumed.
Problem conclusion
The WebSphere MQ code has been changed to prevent messages from being incorrectly marked as in-doubt which makes them available for consumption. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: v6.0 Platform Fix Pack 6.0.2.12 -------- -------------------- Windows U200331 AIX U842074 HP-UX (PA-RISC) U842208 HP-UX (Itanium) U842213 Solaris (SPARC) U842209 Solaris (x86-64) U842216 iSeries tbc_p600_0_2_12 Linux (x86) U842210 Linux (x86-64) U842215 Linux (zSeries) U842211 Linux (Power) U842212 Linux (s390x) U842214 v7.0 Platform Fix Pack 7.0.1.9 -------- -------------------- Windows U200337 AIX U849391 HP-UX (PA-RISC) U849723 HP-UX (Itanium) U849728 Solaris (SPARC) U849724 Solaris (x86-64) U849730 iSeries 7.0.1.9 Linux (x86) U849725 Linux (x86-64) U849729 Linux (zSeries) U849726 Linux (Power) U849727 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
IV11979
Reported component name
WMQ LIN X86 V6
Reported component ID
5724H7204
Reported release
600
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2011-12-12
Closed date
2012-02-02
Last modified date
2012-02-02
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 LIN X86 V6
Fixed component ID
5724H7204
Applicable component levels
R600 PSY
UP
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Document Information
Modified date:
31 March 2023