PI17477: MTM MSC LINK CANNOT BE RESTARTED AFTER IMS CRASH AND ERE

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• After an IMS system abends (various types), and is restarted
  with normal emergency restart, the MSC MTM link cannot be
  re-established with the 2nd IMS system
  One side of the link shows:PSTOPPED NOTIDLE-CE6 ACTV
  The other: PSTOPPED IDLE ERE
  *
  No /RST command was successful at restarting the link. The
  2nd IMS system had to be recyled also to get the link
  functioning again.
  Dumps from both sides showed that the reason the links were
  hung was due to the MTM window control block not being cleaned
  up. It was determined that the cleanup didn't occur because
  the IMS CTL TCB ESTAE was deleted. We found that TCBSTAB
  for the CTL TCB was x'00000000'.
  The following messages were found in the syslog:
  GEX2926I IMS TOOLS GENERIC MSC EXIT INITIALIZATION IN PROGRESS
  GEX2926I PROCLIB MEMBER GEXEXIT0 NOT FOUND
  GEX2913W NO EXIT DEFINITION FOUND IMG1
  GEX2926I IMS TOOLS GENERIC MSC EXIT IS SHUTTING DOWN
  .
  It was determined that the IBM Tools Generic Exits code
  deletes 1 extra ESTAE under this condition.
  

Local fix

• Both sides (IMS) of the MTM link must be recycled if in the
  CE6 status.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: IBM TOOLS BASE USERS WITH NO MSC EXITS       *
  *                 DEFINED WITH GENERIC MSC EXIT                *
  ****************************************************************
  * PROBLEM DESCRIPTION: MTM MSC LINK CANNOT BE RESTARTED AFTER  *
  *                      IMS CRASH AND ERE                       *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  GENERIC MSC EXIT DELETES IMS ESTAE ROUTINE CAUSING IMS FAIL
  TO PERFORM NECCESSARY CLEANUP.
  CODE WAS CHANGED TO REMOVE THE EXTRA ESTAE CANCEL CALL FROM
  GENERIC MSC EXIT.
  

Problem conclusion

• CUSTOMER PROVIDED POSITIVE FIXTEST RESULT.
  

Temporary fix

• *********
  * HIPER *
  *********
  

Comments

APAR Information

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

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

  UI17831 UI17832

Modules/Macros

• GEXIINTA GEXIINTB GEXIINTC GEXIINTD
  

Fix information

• Fixed component name

  TOOLS BASE

• Fixed component ID

  5655V9300

Applicable component levels

• R130 PSY UI17831

     UP14/05/10 P F405

• R140 PSY UI17832

     UP14/05/10 P F405

Fix is available

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