A fix is available
APAR status
Closed as program error.
Error description
MQ Development finds a code path whereby, when specifying CRESTART MQ may unintentionally remove more archive logs from the BSDS than it should which will disallow a successful restart during disaster recovery due to the missing inventory of required logs.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of IBM MQ for z/OS Version 9 * * Release 1 Modification 0, Release 2 * * Modification 0 and Release 3 Modification 0. * **************************************************************** * PROBLEM DESCRIPTION: Abend 5C6-00D99001 occurs in CSQRRPRC * * when starting a queue manager for the * * first time after recovery at an * * alternate site in a DR scenario. * * * * Following the error the CSQJU004 * * utility shows that there is no * * information about Archive Logs in the * * BSDS. * * * * Subsequent attempts to start the queue * * manager fail with abends 5C6-00D10329 * * in CSQJW305, abend 5C6-00E80084, and * * error messages CSQJ106E and CSQJ232E. * **************************************************************** When following the procedure for restarting a queue sharing group at an alternate site, CSQJU003 is used to create a CRESTART record to indicate where the log must be truncated to create a qsg wide point of consistency. If the queue manager must read backwards more than 51 archive logs to locate the CRESTART LRSN, an error in locating the log containing the LRSN and truncating the log results in the reported abend, and the removal of all archive log information from the BSDS. This scenario would occur if the ENDLRSN of one of the queue managers in the queue sharing group is much earlier than the ENDLRSN for the others i.e. a queue manager that has a much lower Persistent workload. For example, this could be a queue manager that only performs CF Structure backups.
Problem conclusion
CSQJW306 is changed to correctly locate the CRESTART LRSN when it is more than 51 archive logs earlier.
Temporary fix
Comments
APAR Information
APAR number
PH44944
Reported component name
IBM MQ Z/OS V9
Reported component ID
5655MQ900
Reported release
100
Status
CLOSED PER
PE
NoPE
HIPER
YesHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2022-03-16
Closed date
2022-09-06
Last modified date
2022-10-03
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI82263 UI82264 UI82265
Modules/Macros
CSQJW306
Fix information
Fixed component name
IBM MQ Z/OS V9
Fixed component ID
5655MQ900
Applicable component levels
R100 PSY UI82265
UP22/09/17 P F209 ¢
R200 PSY UI82264
UP22/09/17 P F209 ¢
R300 PSY UI82263
UP22/09/17 P F209 ¢
Fix is available
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Document Information
Modified date:
03 October 2022