PH01856: ASSIGN STARTCODE PROVIDES DIFFERENT RESULTS FOR SYNCONRETURN VERSUS NOSYNCONRETURN FOR EXCI DPL REQUESTS DURING SYNCPOINT

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• You are running with an application that checks the startcode
  for a transaction to determine further processing options.  You
  have specified NOSYNCONRETURN.  In the case of an EXCI DPL, the
  ASSIGN STARTCODE command returns 'D' or 'DS' as expected, until
  a SYNCPOINT is performed.  At that time, the STARTCODE returned
  is unexpectedly 'TD'.
  
  Additional Symptom(s) Search Keyword(s): KIXREVPAD
  

Local fix

• Specify SYNCONRETURN option for the DPL if your application
  allows that design
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS users                               *
  ****************************************************************
  * PROBLEM DESCRIPTION: EXEC CICS ASSIGN returns a STARTCODE    *
  *                      of 'TD' when issued during SYNCPOINT    *
  *                      of a non SYNCONRETURN DPL from an       *
  *                      EXCI client.                            *
  ****************************************************************
  If an EXCI client sends a non-SYNCONRETURN DPL request to CICS,
  the value returned on EXEC CICS ASSIGN STARTCODE() is 'D' when
  the application issues this command but it is 'TD' when the same
  command is issued by a TRUE during SYNCPOINT.
  
  This problem also affects EXEC CICS INQUIRE TASK STARTCODE where
  a value of 'TO' is returned instead of 'D' when the command is
  executed during SYNCPOINT of a non-SYNCONRETURN DPL request from
  an EXCI client.
  
  This problem occurs because the EISDPL flag is switched off by
  DFHMIRS before a non-SYNCONRETURN SYNCPOINT is issued.
  
  If the EXCI client sends a SYNCONRETURN DPL request to CICS, the
  value returned on both EXEC CICS ASSIGN STARTCODE() and
  EXEC CICS INQUIRE TASK STARTCODE() is 'DS' as expected.
  

Problem conclusion

• DFHMIRS has been changed to set the EISDPL flag before issuing a
  SYNCPOINT commit / rollback of a non-SYNCONRETURN EXCI DPL
  request.
  

Temporary fix

Comments

• ×**** PE20/10/08 FIX IN ERROR. SEE APAR PH30279  FOR DESCRIPTION
  

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  UI61114 UI61115 UI61116

Modules/Macros

• DFHMIRS
  

Fix information

• Fixed component name

  CICS TS Z/OS V5

• Fixed component ID

  5655Y0400

Applicable component levels

• R000 PSY UI61116

     UP19/02/06 P F902

• R100 PSY UI61115

     UP19/02/06 P F902

• R200 PSY UI61114

     UP19/02/09 P F902

Fix is available

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