A fix is available
APAR status
Closed as program error.
Error description
Two tasks running concurrently open the UMDT. The first task manages to open the file, gets the enqueue FCFLUMTL and then loads the UMDT. The second tasks fails to read the record and gets Response = DTP_EXCEPTION & Reason = DTP_NOT_IN_TABLE. Further checks set FCFR_RESPONSE = FCFR_EXCEPTION; and FCFR_REASON = FCFR_SHIP. The task then waits on the enqueue FCFLUMTL. Meaning "wait during loading of a user-maintained data table". . After the UMDT is loaded (by the first task), the enqueue is released and the second task is resumed. The second task repeats the read of the record, this time it is successful but FCFR_EXCEPTION and FCFR_SHIP are still set. . On return from DFHFCDTS, we get an exception SHIP, this causes a ISP CONVERSE but there is no termid associated with the task so this results in a SYSIDERR.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All CICS users. * **************************************************************** * PROBLEM DESCRIPTION: SYSIDERR returned on a read of a * * user maintained data table. * **************************************************************** EXEC CICS READ requests were function shipped to a file owning CICS region and CSMI transactions attached to process them. The first command attached CFTL to load the user maintained data table being read. Before this completed, the second READ command detected that the record to be read was not yet available. DFHFCDTS set fcfr_response to fcfr_exception and fcfr_reason to fcfr_ship. However, before returning this to DFHFCFR it determined the table load had completed so retried a read of the UMDT. This was now successful. DFHFCDTS returned to DFHFCFR but the exception response had not been reset, and so DFHFCFR attempted to function ship the request on to a file owning region. No such SYSID was provided as there was not a remote FOR. The command failed with a SYSIDERR.
Problem conclusion
DFHFCDTS has been changed to reset fcfr_response and fcfr_reason before retrying a data table read after loading has completed.
Temporary fix
Comments
APAR Information
APAR number
PH30719
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
2020-10-20
Closed date
2020-12-02
Last modified date
2021-01-04
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI72874 UI72875 UI72876
Modules/Macros
DFHFCDTS
Fix information
Fixed component name
CICS TS Z/OS V5
Fixed component ID
5655Y0400
Applicable component levels
R100 PSY UI72876
UP20/12/07 P F012
R200 PSY UI72875
UP20/12/07 P F012
R300 PSY UI72874
UP20/12/11 P F012
Fix is available
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Document Information
Modified date:
05 January 2021