PI94080: CICS DFH$MOLS JOB PRODUCES INCORRECT OUTPUT FOR PDRIRESP FOR NON-ZERO TCIOWT

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Impact - incorrect reporting of Internal Response date.
  
  We have a modified version of DFH$MOLS that displays the
  Internal Response (IRESP).
  
  IRESP appeared ok, except for some transactions.
  
  The transactions for which it appeared wrong had a significant
  'think time' - TC I/O Wait.
  
  Looking at the origin of Internal Response time, I found a bug
  in the source.
  
  DFH$MOLS calculates the wrong Internal RESP value for all
  release of CICS/TS where there is a non-zero TC I/O Wait value.
  
  It is obvious when one uses CEMT I TAS interactively, leaves
  the CEMT display for 2 minutes, then exits CEMT.
  
  Post-processing the SMF 110 performance records for this CEMT
  tasks shows that PDRIRESP is just short of 2 minutes, whereas
  it should be subsecond.
  
  Additional Symptom(s) Search Keyword(s): KIXREVCTC
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS Users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: DFH$MOLS PDRIRESP field is reporting    *
  *                      the incorrect value.                    *
  ****************************************************************
  The provided DFH$MOLS sample is using the first four bytes of
  the timestamp value in PDRTCWT when calculating the PDRIRESP
  value rather than just the time portion. This results in
  PDRIRESP being reported as a larger value than intended.
  

Problem conclusion

• DFH$MOLS has been altered to correctly calculate the PDRIRESP
  value.
  

Temporary fix

Comments

APAR Information

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

  PI77926

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

  UI54597

Modules/Macros

• DFH$MOLS
  

Fix information

• Fixed component name

  CICS TS Z/OS V4

• Fixed component ID

  5655S9700

Applicable component levels

• R700 PSY UI54597

     UP18/03/21 P F803

Fix is available

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