A fix is available
APAR status
Closed as program error.
Error description
Trigger monitoring was stopped. This customer was using a shared application queue and shared initiation queue. There is an internal test of the open input count on the application queue that is performed twice by the putting application and between the two tests the value changes due to a small timing window - this change causes us to misinterpret that the initiation queue is not open and therefore we stop trigger monitoring.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of IBM MQ for z/OS Version 9 * * Release 0 Modification 0 and Version 9 * * Release 1 Modification 0. * **************************************************************** * PROBLEM DESCRIPTION: Triggering gets incorrectly turned off * * when the open input to the * * application queue closes while a * * MQOPEN or MQCLOSE is executing. * **************************************************************** If the open input to the application queue closes while an MQOPEN or MQCLOSE is executing, CSQMTRGS may turn off triggering due to incorrectly assuming the initiation queue has no trigger monitor.
Problem conclusion
CSQMTRGS will not incorrectly disable triggering if the state of the application queues open input count changes during execution.
Temporary fix
Comments
APAR Information
APAR number
PH08277
Reported component name
IBM MQ Z/OS V9
Reported component ID
5655MQ900
Reported release
000
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2019-02-07
Closed date
2019-03-08
Last modified date
2019-08-20
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI61733 UI61734
Modules/Macros
CSQMTRGS
Fix information
Fixed component name
IBM MQ Z/OS V9
Fixed component ID
5655MQ900
Applicable component levels
Fix is available
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Document Information
Modified date:
20 August 2019