PI41431: ABEND04E RC00E2000C AT DSNGDCOB DSNSVSVB OFFSET0AD8 WHEN PARTITIONING RIDMAP INTO WORKFILES WITH PARALLELISM

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• ABEND04E RC00E2000C at DSNGDCOB DSNSVSVB OFFSET0AD8 when
  partitioning RIDMAP into workfiles with PARALLELISM
  Thread AGL 64 pool is full of control blocks with
  WKFD allocated by DSNXSFPR for xC0 xslot.
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All DB2 10 and DB2 11 for z/OS users of      *
  *                 queries where parallelism needs to partition *
  *                 RIDs into workfiles.                         *
  ****************************************************************
  * PROBLEM DESCRIPTION: An ABEND04E RC00E2000C at DSNGDCOB      *
  *                      DSNSVSVB (OFFSET0AD8) can occur when    *
  *                      parallelism needs to partition RIDs     *
  *                      into workfiles and finds that no        *
  *                      storage is available.                   *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  An ABEND04E RC00E2000C at DSNGDCOB DSNSVSVB (OFFSET +0AD8) can
  occur when parallelism needs to partition the RIDs into
  workfiles and finds no storage available.
  
  The problem occurs because the module which performs the
  partitioning kept on acquiring storage for an internal workfile
  descriptor control block but never freed it upon exit.  Thus, a
  slow growing catalyst.  So if an application is long running and
  continues to use parallelism with this kind of RID partitioning,
  then this storage can continue to accummulate resulting in a
  short on storage condition.
  

Problem conclusion

• DB2 has been modified to free the storage for the workfile
  descriptor control block upon exit from the module that
  acquires the storage. This will prevent the accumulation
  and short-on-storage condition previously mentioned.
  
  Additional Keywords: SQLRID PARALLELISM SQLPARALLELISM
                       DB2PARALL/K SQLSTORAGE DB2STGLK/K
  

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:

  UI28342 UI28343

Modules/Macros

• DSNXSFPR
  

Fix information

• Fixed component name

  DB2 OS/390 & Z/

• Fixed component ID

  5740XYR00

Applicable component levels

• RA10 PSY UI28342

     UP15/06/24 P F506

• RB10 PSY UI28343

     UP15/06/24 P F506

Fix is available

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