PK86581: AFTER CHANGE TO DAYLIGHT SAVINGS, STATISTICS END-OF-DAY TIME IS INCORRECTLY SET AT ONE HOUR PAST MIDNIGHT.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• After change to daylight savings, Statistics End-of-Day Time is
  incorrectly set at one hour past midnight.
  

Local fix

• n/a
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: After moving the system clock forward   *
  *                      1 hour for daylight saving time, CICS   *
  *                      end-of-day (EOD) statistics ran at      *
  *                      01:00 instead of midnight.              *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  SIT parameter AUTORESETTIME=YES was specified.  This causes
  DFHAPTIM to issue a PERFORM RESET to synchronize the CICS date
  and time-of-day with the system date and time-of-day at the next
  local midnight if they differ by more than 30 minutes.  This
  worked correctly but now CICS end-of-day statistics ran at 01:00
  (one am, 1 o'clock) instead of midnight.
  
  The end-of-day statistics collection is controlled by a periodic
  timer event which runs at midnight.  This runs, is temporarily
  marked as expired and then reset to run 24 hours later.
  However, DFHTISR does not reset the expiry time in an expired
  timer request element (TRE).
  
  Additional keywords: TRE_EXPIRY_TIME
  

Problem conclusion

• Procedure RESET_LOCAL_TIME in DFHTISR has been changed to reset
  the expiry time of an expired periodic alarm call timer request
  element.
  
  Procedure CLEANUP in DFHTISR has been changed so that 24 hours
  is no longer added to the expiry time of an expired periodic
  alarm call timer request element if the expiry time has already
  been reset in procedure RESET_LOCAL_TIME.
  
  The CICS Transaction Server for z/OS Version 3 Release 2 CICS
  Supplementary Data Areas manual, GC34-6864-01, will be updated
  as follows:
  
  Add flag TRE_RESET_PERFORMED to the TIMER_REQUEST_ELEMENT
  definition at offset (49) as follows:
  
   (49)   UNSIGNED        1     TRE_FLAGS         various flags
           1...  ....           TRE_EXPIRED       Expired, and
                                                  notify in
                                                  progress
           .1..  ....           TRE_CANCELLED     Is it cancelled?
           ..1.  ....           TRE_ORIGIN_       expiry of 1st
                                INTERVAL_EXPIRED  interval
           ...1  ....           TRE_RESET_        local times
                                TIME_PROCESSED    adjusted?
           ....  1...           TRE_RESET_        RESET while
                                PERFORMED         EXPIRED
           ....  .1..           *                 unused
           ....  ..1.           *                 unused
           ....  ...1           *                 unused
  
  The CICS Transaction Server for z/OS Version 3 Release 2 CICS
  System Definition Guide, SC34-6813-02, will be updated as
  follows:
  
  A note will be added to the description of the YES value of
  system initialization parameter AUTORESETTIME in section "The
  system initialization parameter descriptions":
  
  "YES  CICS issues a PERFORM RESET command to synchronize the
        CICS time-of-day with the system time-of-day.
  
        Note: Setting clocks back may result in end-of-day
        statistics to be written twice."
  

Temporary fix

• FIX AVAILABLE BY PTF ONLY
  

Comments

APAR Information

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

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

  PK94759 UK50678

Modules/Macros

•    DFHTIA   DFHTIAD  DFHTISR
  

Fix information

• Fixed component name

  CICSTS V3 Z/OS

• Fixed component ID

  5655M1500

Applicable component levels

• R500 PSY UK50678

     UP09/10/05 P F910

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.