PI22578: ABEND0C4 DSNVDTA FOLLOWING -RECOVER INDOUBT COMMAND. DB2 TERMINATES WITH RC00E50731

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• A -RECOVER INDOUBT command can leave a FREE ACE control block
  on the DB2 MSTR ACE chain.  This can result in repeated
  ABEND0C4 abends in DSNVDTA under the monitor task.  This can
  also cause DB2 to terminate with RC00E50731.
  DB2TERM DB2ABTERM
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All Version 11 users of DB2 for zOS.         *
  ****************************************************************
  * PROBLEM DESCRIPTION: ABEND0C4 in DSNVDTA followed by         *
  *                      MSGDSNV509I DSNVMON DB2 MSTR INTERNAL   *
  *                      MONITOR STOPPING and DB2 termination    *
  *                      with RC00E50731 after a -RECOVER        *
  *                      INDOUBT command was issued.             *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  A -RECOVER INDOUBT command was issued to resolve an INDOUBT
  UR from an allied address space (ie. IMS, CICS) before DB2
  was recycled.  While completing thread termination for the
  INDOUBT UR, an invalid pointer was passed on the TERM
  requests resulting in a FREE ACE being left on the DB2
  MSTR ACE chain.  This caused multiple ABEND0C4s in DSNVDTA
  under the DSNVMON monitor task.  After an ABEND/RETRY limit
  was exceeded, MSGDSNV509I DSNVMON - DB2 MSTR INTERNAL MONITOR
  STOPPING was issued and DB2 terminated with RC00E50731.
  This problem does not occur if DB2 is recycled before
  issuing the -RECOVER INDOUBT command, or if INDOUBT resolution
  is done when the Commit Coordinator reconnects to DB2.
  Also, this problem does not apply for Distributed
  Server (DDF DBAT) threads.
  

Problem conclusion

• The incorrect parameter passing in DSN3RIM0 has been
  corrected.
  

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:

  UI20372

Modules/Macros

• DSN3RIM0
  

Fix information

• Fixed component name

  DB2 OS/390 & Z/

• Fixed component ID

  5740XYR00

Applicable component levels

• RB10 PSY UI20372

     UP14/08/25 P F408

Fix is available

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