A fix is available
APAR status
Closed as program error.
Error description
The customer upgraded their Test MQ environment. They are experiencing the following dump at startup, but the queue manager appears to function without issues. . TITLE CSQ1,ABN=5C6-00C94510,U=SYSOPR ,C=ccccc.nnn.DMC - CSQIMGES,M=CSQGFRCV,LOC=CSQILPLM.CSQIMGES . CSQI_ABEND_CFM_ERROR ('00C94510'x) - CFM problem recognised in DMC . The change team has reviewed the dump. The 5C6-00C94510 issued by CSQIMGES is occurring as MHND.pDPIVSA (addr of IVSA for SYSTEM.PENDING.DATA.QUEUE) is 0. This abend occurs when SYSTEM.PENDING.DATA.QUEUE is get-disabled. CSQMDPAT detects that this is the case, but does not close the queue correctly. This leads to subsequent problems such as the 5C6-00C94510 issued by CSQIMGES.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of IBM MQ for z/OS Version 9 * * Release 0 Modification 0. * **************************************************************** * PROBLEM DESCRIPTION: If the SYSTEM.PENDING.DATA.QUEUE is * * GET disabled then the following abend * * will be seen shortly after the queue * * manager is started:- * * Abend 0C4 in CSQIMGES if the queue * * manager is not in a queue sharing * * group. * * Abend S5C6-00C94510 if the queue * * manager is in a queue sharing group. * **************************************************************** If the SYSTEM.PENDING.DATA.QUEUE is GET disabled then CSQMDPAT will attempt to close the queue, but the ?MQCLOSE fails with a bad return code so certain queue handles and pointers are not reset. This means that when CSQMDPAT next runs it will cause CSQIMGES to be invoked which will fail with 5C6-00C94510. If the queue manager is not in a QSG then CSQIMGES fails 0C4 when it tries to access the ETHR, which doesn't exist in a qmgr not in a QSG.
Problem conclusion
CSQMDPAT has been changed so that the ?MQCLOSE will not produce a bad lretcode if the SYSTEM.PENDING.DATA.QUEUE is GET disabled thus avoiding the abends.
Temporary fix
Comments
APAR Information
APAR number
PI78131
Reported component name
MQ Z/OS V9
Reported component ID
5655MQ900
Reported release
000
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2017-03-14
Closed date
2017-04-18
Last modified date
2017-06-02
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI46495
Modules/Macros
CSQMDPAT
Fix information
Fixed component name
MQ Z/OS V9
Fixed component ID
5655MQ900
Applicable component levels
R000 PSY UI46495
UP17/05/19 P F705
Fix is available
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Document Information
Modified date:
02 June 2017