A fix is available
APAR status
Closed as program error.
Error description
Synchronization issues may happen in systems with high MQ connection/disconnections which leads to incorrect quickcell usecount. FDCs will be generated indicating the corrupted quickcells. Following FDCs with probe ids XC476004,XC034070, XC302005, XC014030 may be generated. The FDCs will have the function stack MQM Function Stack ExecCtrlrMain zxcProcessMessage zxcMQIRequest zxcConnectAgent xlsAbandonRecoveryToken xcsDecrementQuickCellUseCount xcsFFST
Local fix
Problem summary
**************************************************************** USERS AFFECTED: This issue may occur on machines which has high number MQ connections and disconnections. Platforms affected: MultiPlatform **************************************************************** PROBLEM SUMMARY: The synchronizing problem occurred because the quickcell usecount was not being calculated correctly.
Problem conclusion
The code changes have been made to include additional checks for the PID and prevent a partially initialized data structure from being used during MQCONN, thus eliminating the synchronization issue. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level 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
IV55876
Reported component name
WMQ AIX V7
Reported component ID
5724H7221
Reported release
701
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2014-02-25
Closed date
2014-03-25
Last modified date
2014-04-23
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
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":"7.0.1"}]
Document Information
Modified date:
03 October 2021