A fix is available
APAR status
Closed as program error.
Error description
WMQ 7.5 onwards generates a failure data capture (FDC) record with probe id XC514090 from xlsRWMutexRequest with the following stack: MQM Function Stack MQCLOSE zstMQCLOSE zifMQCLOSE zsqMQCLOSE kpiMQCLOSE kqiCloseIt kqiCloseTopic kqiTopicDeregisterSubscriber xlsRWMutexRequest xcsFFST
Local fix
Problem summary
**************************************************************** USERS AFFECTED: Users using WMQ 7.5 onwards with a publish/subscribe configuration where subscriptions are added/removed dynamically. Platforms affected: MultiPlatform **************************************************************** PROBLEM DESCRIPTION: A logic error introduced a code path whereby an internal lock could fail to be released while deregistering a subscriber or removing a topic, which resulted in the xecL_W_LONG_LOCK_WAIT condition being reported.
Problem conclusion
The publish-subscibe logic has been updated to release the lock correctly. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level v7.5 7.5.0.8 v8.0 8.0.0.6 v9.0 CD 9.0.2 v9.0 LTS 9.0.0.1 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
IT10079
Reported component name
WMQ BASE MULTIP
Reported component ID
5724H7241
Reported release
750
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2015-07-15
Closed date
2016-11-18
Last modified date
2017-06-01
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 BASE MULTIP
Fixed component ID
5724H7241
Applicable component levels
R750 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":"7.5"}]
Document Information
Modified date:
26 August 2021