PM74528: ABEND0C4 DSNIWKFD +1C9A

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• D320,ABND=0C4-00000010,U=PRDKGS  ,M=(N),C=910.DMC
  -DSNIWKFD,M=DSNTFRCV,LOC=DSNIDM  .DSNIWKFD+1C9A
  ==SQL Statement
     -------------
   DELETE FROM TGLB_KGS_FDB_3_DIM_BAL QUERYNO 1005
  ----------------------------------------------------------------
  The ABEND0C4 in DSNIWKFD occurs due to a bad XPREVVERTCUB
  pointer.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All DB2 10 and DB2 9 for z/OS users of       *
  *                 cursors (DECLARE CURSOR) on created global   *
  *                 temporary tables (CGTT)                      *
  ****************************************************************
  * PROBLEM DESCRIPTION: ABEND0C4 DSNIWKFD +1C9A on created      *
  *                      global temporary table when there is    *
  *                      a very large number of cursors open     *
  *                      on it (e.g. over 500 cursors)           *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The aforementioned abend occurred during cleanup of a created
  global temporary table (CGTT) that had a very large number of
  cursors open on it (e.g. over 500).
  
  The reason for the abend is that DB2 code was falsely assuming
  that there cannot be more than 500 cursors opened by the thread.
  Specifically, because of this incorrect assumption, the the
  reader CUB chain was not properly maintained, leading to the
  abend.
  

Problem conclusion

• Code has been changed to correctly process reader CUB chain on
  a CGTT when there is a very large number of cursors open.
  
  Additional keywords: SQLCGTT
  

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:

  UK90408 UK90409

Modules/Macros

• DSNIWKFD
  

Fix information

• Fixed component name

  DB2 OS/390 & Z/

• Fixed component ID

  5740XYR00

Applicable component levels

• RA10 PSY UK90408

     UP13/01/01 P F212

• R910 PSY UK90409

     UP13/01/01 P F212

Fix is available

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