A fix is available
APAR status
Closed as program error.
Error description
Customer issued MVS CANCEL command for QMGR at a failure recovery test. They expected that QMGR abnormally terminate, CHINIT also terminate, and then both restart successfully. However, CHINIT didn't terminate after QMGR abnormal termination. CHINIT was hanging until MVS CANCEL command was issued. Restart for QMGR, CHINIT succeeded.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of IBM MQ for z/OS Version 9 * * Release 0 Modification 0, Release 1 * * Modification 0 and Release 2 Modification 0. * **************************************************************** * PROBLEM DESCRIPTION: If the QMGR terminates unexpectedly, * * it is possible that the CHINIT address * * space will fail to terminate and will * * hang indefinitely. * **************************************************************** When the QMGR terminates unexpectedly, the CHINIT should exit. An issue with flags set in the CHINIT resulted in it hanging instead of exiting cleanly. This issue only occurred when SVRCONN channels with a SHARECNV higher than 0 exist.
Problem conclusion
An incorrect variable assignment on the async conversation state was fixed.
Temporary fix
Comments
APAR Information
APAR number
PH41724
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
2021-11-01
Closed date
2021-11-22
Last modified date
2022-03-01
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI78208 UI78490 UI78491
Modules/Macros
CSQXRSTM
Fix information
Fixed component name
IBM MQ Z/OS V9
Fixed component ID
5655MQ900
Applicable component levels
R000 PSY UI78208
UP22/02/18 P F202
R100 PSY UI78491
UP22/02/10 P F202
R200 PSY UI78490
UP22/02/10 P F202
Fix is available
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Document Information
Modified date:
02 March 2022