PI51276: LINK WITH MANDATORY PREDECESSOR ARE LOST

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• When extending the LTP, sometimes the link with mandatory
  predecessors is lost. This issue occurs just for some
  applications. Some of them are never involved and some
  applications occasionally suffer this issue.
  The following is the sequence running the failing scenario:
  1 - Run LTP batch job       (for example at 12:00 PM)
  2 - Run CP extend           (just after the LTP job)
  3 - Run LTP Modify ALL job  (4 hours later. During this phase
                              the link to Mandatory pred is lost)
  4 - Run Trial Plan job
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All TWS for z/OS 9.1 and 9.2 users, and      *
  *                 all IWS for z/OS 9.3 users.                  *
  *                 FUNCTION = LTP                               *
  ****************************************************************
  * PROBLEM DESCRIPTION: Randomly, mandatory pending             *
  *                      predecessors can be lost after          *
  *                      a modify all LTP run.                   *
  ****************************************************************
  * RECOMMENDATION: APPLY THE PTF FIXING THIS APAR               *
  ****************************************************************
  Randomly, mandatory pending predecessors can be lost after
  a modify all LTP run.
  This depends from a particular sequence of LTP occurrences
  produced in the LTP plan.
  Customer reported scenario is the following one:
  
  1 - run LONG TERM PLAN job             at 12.00 pm
  2 - run CP EXTEND job                  right afterLTP job
  3 - run LONG TERM PLAN MODIFY ALL job  four hours later
  
  At this point some mandatory predecessors are lost
  
  Anyway the error occurs only using some specific AD definitions
  and Current Plan occurrences combination of status / IA times.
  

Problem conclusion

• Problem was due to the reset of mandatory pending
  predecessor flag during the LTP modify all batch run,
  when LTP occurrences needed to be rewritten to
  add dependencies.
  
  912Y
  922Y
  932Y
  EQQLCCUD
  EQQLCRES
  

Temporary fix

Comments

APAR Information

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

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

  UI33100 UI33101 UI33102

Modules/Macros

• EQQLCCUD EQQLCRES
  

Fix information

• Fixed component name

  TIV WRKLD SCHD

• Fixed component ID

  5697WSZ01

Applicable component levels

• R912 PSY UI33100

     UP15/12/10 P F512

• R922 PSY UI33101

     UP15/12/10 P F512

• R932 PSY UI33102

     UP15/12/10 P F512

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.