PH29935: ABENDS0C4 DURING UNLOAD PROCESS

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• In very rare situations, Db2 HPU terminates with
  an ABENDS0C4 or other unpredictable symptom due to a memory
  overlay that occurs, for example, when an internal Db2 HPU
  thread terminates and another one starts at the same time. The
  occurrence of the issue increases with the number of distinct
  logical unloads in a single UNLOAD statement.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of Db2 High Performance Unload         *
  *                 for z/OS                                     *
  ****************************************************************
  * PROBLEM DESCRIPTION: In very rare situations, Db2 HPU        *
  *                      terminates with an ABENDS0C4 or other   *
  *                      unpredictable symptom due to a memory   *
  *                      overlay that occurs, for example, when  *
  *                      an internal Db2 HPU thread terminates   *
  *                      and another one starts at the same      *
  *                      time. The occurrence of the issue       *
  *                      increases with the number of distinct   *
  *                      logical unloads in a single UNLOAD      *
  *                      statement.                              *
  ****************************************************************
  * RECOMMENDATION: Apply the PTF                                *
  ****************************************************************
  ABENDS0C4 or other unpredictable symptom during unload process
  

Problem conclusion

• Code has been changed to fix this problem
  

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:

Modules/Macros

• INZ$$PRM INZA30   INZA40   INZB601E INZB601I INZB61   INZB70E
  INZB70I  INZBIND  INZCHECK INZCRXSM INZCRXSQ INZHPUCL INZSDN
  INZTDSC  INZTPMEM INZTVAR  INZUTIB1 INZUTIB2 INZUTILC INZUTILK
  INZUTILL
  

Fix information

• Fixed component name

  DB2 HI PERF UNL

• Fixed component ID

  5697F4400

Applicable component levels

• R510 PSY UI72678

     UP21/01/04 P F012

Fix is available

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