A fix is available
APAR status
Closed as program error.
Error description
In some cases, CICS may run code in routine ACCMTEST ( DFHFCFR ) on the RO TCB. This should not be happening. This APAR is being opened to correct that situation.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All CICS users. * **************************************************************** * PROBLEM DESCRIPTION: When CICS is processing an error during * * a logger request it is possible to * * drive a request to the CFDT server on * * the RO TCB. * **************************************************************** When CICS is processing an error during a logger request it can require that DFHRSDU is driven to start the dump request. This can be done while on the RO TCB. If the CICS region is part of a CMAS, then the dump request will want to update the CFDT file DFHRSTAT. This request will be made to FCFR who will call DFHFCDR. When FCDR calls the CFDT server the request will complete with a disaster response and the file will not be updated. CICS will continue to process the dump request. The disaster response is due to FCDR being driven while on the RO TCB as it is being mistakenly treated as an open TCB for CFDT threadsafety processing. Additional Keywords: BEFORE_CFDT_SERVER AFTER_CFDT_SERVER FCDR 0505 RSDU RO_TCB
Problem conclusion
DFHFCFR has been updated to ensure that if a file control request against a CFDT file is made when on the RO TCB that a switch to the QR TCB is made before connecting to DFHFCDR and the CFDT server.
Temporary fix
Comments
APAR Information
APAR number
PH20009
Reported component name
CICS TS Z/OS V5
Reported component ID
5655Y0400
Reported release
200
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
YesSpecatt / CST / Xsystem
Submitted date
2019-12-06
Closed date
2020-07-09
Last modified date
2020-08-06
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI70465 UI70466
Modules/Macros
DFHFCFR
Fix information
Fixed component name
CICS TS Z/OS V5
Fixed component ID
5655Y0400
Applicable component levels
Fix is available
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Document Information
Modified date:
12 August 2020