JR31208: MEMORY LEAK IN MFF OPERATOR RESULTING IN HEAP ALLOCATION FAILED

APAR status

• Closed as program error.

Error description

• Simple CFF stage to Peek parallel job results in a Heap
  Allocation failed error. Memory leak in the MFF operator.
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  USERS AFFECTED:
  IS 8.1 and earlier versions of IS using the MFF stage.
  ****************************************************************
  PROBLEM DESCRIPTION:
  Heap allocation failure running jobs using the MFF/CFF stage.
  ****************************************************************
  RECOMMENDATION:
  Install patch JR31208
  ****************************************************************
  

Problem conclusion

• Poor memory management in the MFF data processing loop.  Record
  processing was rewritten to use transfer buffers instead of
  copying each field individually.  This should also lead to much
  better performance.
  

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

• SERVER
  

Fix information

• Fixed component name

  WIS DATASTAGE

• Fixed component ID

  5724Q36DS

Applicable component levels

• R801 PSN

     UP