A fix is available
APAR status
Closed as program error.
Error description
MQ QMR received an ABN=052-00000102 . ABN=052-00000102,U=SYSOPR,C=W9700.800.SSSC-CSQ3IDEN, M=CSQ3IDES,PSW=070C10009BB04448,ASID=0002 . abend which has led to the stalling of checkpointing by the queue-manager. The problem occurs when there is an indoubt unit of work in CICS involving MQ, and CICS instructs the queue-manager to commit or backout. The queue-manager aborts or commits the unit of work, and then starts deallocation processing for the thread structure control blocks. . Additional Symptom(s) Search Keyword(s): ABEND052 ABENDS052 052 S052 S0052
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of WebSphere MQ for z/OS Version 8 * * Release 0 Modification 0. * **************************************************************** * PROBLEM DESCRIPTION: Abend 052-00000102 or 052-00000103 can * * occur during connect processing, if an * * indoubt UR associated with the same * * address space is in resolve indoubt * * processing at the same time. * * * * The error can also lead to the * * checkpoint processor hanging, * * preventing any further checkpoints * * being written to the recovery logs. * * This can result in various symptoms * * when the queue manager is restarted * * including: * * - extended restart times * * - Abend 5C6-00E20004 in CSQSVBK, and * * queue manager startup failing * * - Abend 5C6-00D1032A in CSQJR003, and * * queue manager startup failing. * * In some cases the lack of checkpoints * * in the recovery logs can require the * * queue manager to be cold started. * **************************************************************** * RECOMMENDATION: * **************************************************************** A timing window exists such that CSECT CSQ3RIS0 may attempt to terminate an agent being terminated by CSECT CSQ3RIA0 or CSQ3RIM0 during resolve indoubt processing. This results in the agent structure being used by 2 different threads, leading to the reported symptoms.
Problem conclusion
The timing window has been eliminated such that a thread will not be terminated while resolve indoubt processing is running. 000Y CSQ3RIA0 CSQ3RIM0 CSQ3RIS0
Temporary fix
********* * HIPER * *********
Comments
APAR Information
APAR number
PI67690
Reported component name
WMQ Z/OS 8
Reported component ID
5655W9700
Reported release
000
Status
CLOSED PER
PE
NoPE
HIPER
YesHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2016-08-17
Closed date
2016-08-18
Last modified date
2016-09-02
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
006PC16 UI40175
Modules/Macros
CSQ3RIA0 CSQ3RIM0 CSQ3RIS0
Fix information
Fixed component name
WMQ Z/OS 8
Fixed component ID
5655W9700
Applicable component levels
R000 PSY UI40175
UP16/08/25 P F608 ¢
Fix is available
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Document Information
Modified date:
02 September 2016