A fix is available
APAR status
Closed as program error.
Error description
CICS TS 5.4 We saw MQGET TIMEOUT failures in the consumer (this case our IIB based Enterprise server platform) correlate exactly with recycles of the MQ DPL Bridge regions. During CICS shutdown we get messages : DFHMQ0704 E 12:05:35 CICSRGN CKBR 00080 EIBRESP=16 EIBRESP2=17 returned for EXEC CICS call. EIBFN=1008. DFHMQ0760 I 12:05:35 CICSRGN CKBR 00080 MsgId=414D51204E314.... DFHMQ0762 I 12:05:35 CICSRGN CKBR 00080 Queue name=ABC.CICS.EFG After these messages, we see MQGET timeouts back in the requester.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All CICS Users. * **************************************************************** * PROBLEM DESCRIPTION: DFHMQ0704E with EIBRESP=16, * * EIBRESP2=17 and EIBFN=1008 when * * starting CKBP transaction during CICS * * shutdown. * **************************************************************** During a shutdown of a CICS region it is possible to receive message DFHMQ0704E when starting CKBP. If DFHMQBR0 issues the start for CKBP as CICS is shutting down then it will issue message DFHMQ0704E but also it will remove the message without processing it. Any other systems that could be attempting to read this message of the queue will get an MQGET Timeout.
Problem conclusion
DFHMQBR0 has been changed to detect that CICS is shutting down when attempting to start CKBP. In this case, issue a new message DFHMQ0708I and do not remove the message from the Bridge Queue. The CICS messages have been updated with a new message DFHMQ0708 DFHMQ0708 I date time applid tranid trannum CICS-MQ Bridge failed to start CKBP because CICS is shutting down. Explanation The CICS-MQ bridge could not start CKBP because the CICS region was being shutdown. System action CICS shutdown continues. User response None. Module DFHMQBR0
Temporary fix
Comments
APAR Information
APAR number
PH17003
Reported component name
CICS TS Z/OS V5
Reported component ID
5655Y0400
Reported release
100
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2019-09-17
Closed date
2020-07-24
Last modified date
2020-08-03
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI70736 UI70737 UI70738 UI70739
Modules/Macros
DFHMEMQC DFHMEMQE DFHMEMQK DFHMQBID DFHMQCM@ DFHMQP0@ DFHMQP1@ DFHMQP3@ DFHMQR0@
Fix information
Fixed component name
CICS TS Z/OS V5
Fixed component ID
5655Y0400
Applicable component levels
R100 PSY UI70736
UP20/07/25 P F007
R103 PSY UI70737
UP20/07/25 P F007
R200 PSY UI70738
UP20/07/25 P F007
R300 PSY UI70739
UP20/07/25 P F007
Fix is available
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[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSGMGV","label":"CICS Transaction Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"5.4","Line of Business":{"code":"LOB35","label":"Mainframe SW"}}]
Document Information
Modified date:
05 August 2020