APAR status
Closed as program error.
Error description
Applications cannot reconnect to the queue manager after a CPU down in very rare cases at all. The error 2059 is reported on every MQCONN retry. . FDCs may be thrown constantly like below: . Probe Id :- XY077002 Component :- xtrGetTraceLock Major Errorcode :- xecF_E_UNEXPECTED_SYSTEM_RC Minor Errorcode :- OK Probe Type :- MSGAMQ6119 Probe Severity :- 2 Probe Description :- AMQ6119: An internal WebSphere MQ error has occurred (Guardian error initializing Trace Lock) Arith1 :- 48 30 Comment1 :- Guardian error initializing Trace Lock Comment2 :- FILE_OPEN_ ----------------------------------------------------------- MQM Function Stack MQCONN zstMQCONN xcsInitialize xcsFFST
Local fix
Problem summary
Applications cannot reconnect to the queue manager after a CPU down in rare cases at all. The error 2059 is reported on every MQCONN retry. The error is caused when the application is in the call MQDISC and at the same time a CPU down event is executed on the CPU of the primary disc process. The selected primary disc process is the one that operates on the file LnSTRACEX from the queue manager Guardian installation volume , which is also opened by the application (see PSTATE opened files).
Problem conclusion
CPU down handling has been improved.
Temporary fix
Restart the application that cannot reconnect.
Comments
APAR Information
APAR number
IT28993
Reported component name
WEBS MQ NSS ITA
Reported component ID
5724A3902
Reported release
531
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2019-04-30
Closed date
2019-05-15
Last modified date
2019-05-15
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
WEBS MQ NSS ITA
Fixed component ID
5724A3902
Applicable component levels
[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSFKSJ","label":"WebSphere MQ"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"5.3.1","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]
Document Information
Modified date:
31 March 2023