OA66036: PFA_WLM_ADDR_SPACE_VELOCITY PFA_JES2_RESOURCE_EXHAUSTION MODEL FAILURE AIR053I JVM HEAP TOO SMALL

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• The PFA_WLM_ADDR_SPACE_VELOCITY (WAV) or the
  PFA_JES2_RESOURCE_EXHAUSTION (JRE) check may fail modeling with
  message AIR053I due to the JAVA VM heap space running out of
  memory.  Analysis shows that it was
  consumed with expected data from the jobs being tracked under
  these checks.
  
  The default heap Size for PFA is 128MB which is not sufficient
  for all configurations.
  
  VERIFICATION STEPS:
  For the WAV check:
  Review the javacore.xxxxxxx.txt file generated
  - The Java callstack:  should show that the out of memory
  occurred in DataSource.readDataFromFile.
   at
   com/ibm/zos/pfa/cart/DataSource.readDataFromFile(DataSource.j
  avaCode))at
  com/ibm/zos/pfa/cart/CartMain.main(CartMain.java:478) No
  native callstack available on this platform
  
  For the JRE check
  Review the javacore.xxxxxxx.txt file generated
  - The Java callstack:  should show that the out of memory
  occurred in the systeName.5day.All.Data file
  at
  com.ibm.zos.pfa.chk.MergeStorage.identifyTopContributors(MergeS
  torage.java:868)
  
  - The JVM options in the javacore.txt file should show the
  
  UserArgs passed:
  1CIUSERARGS    UserArgs:
  .
  .
  .
  2CIUSERARG               -Xms64M
  2CIUSERARG               -Xmx128M
  2CIUSERARG               -Xss128M
  

Local fix

• BYPASS/CIRCUMVENTION:
  - Modify the size for the JVM heap to be used. By creating a
  pfaopts file
  
  pfaopts file instructions
  
  ---------------------------
  
  The options file must be created in the check's directory for
  each check, must be named pfaopts, and must have 755 as the
  permission bits
  
  For example, the pathname for the file for this issue would be
  for the PFA_WLM_ADDR_SPACE_VELOCITY check would be
  
  pfa_directory/PFA_WLM_ADDR_SPACE_VELOCITY/pfaopts
  
  
  If the file exists and is not empty (with file size 0), PFA will
  
  add the options file as the last option when creating the JVM
  and will log additional information to the check's
  systemName.launcher.log.
  
  One method of creating the file is to do the following:
  
  1. Change directory in omvs to a check directory
  (pfa_directory/PFA_WLM_ADDR_SPACE_VELOCITY for example)
  cd /u/pfa/PFA_WLM_ADDR_SPACE_VELOCITY/
  
  
  2. oedit pfaopts
  
  
  3. Add following on separate LINEs of this file and save it:
  -XmsYm
  -XmxZm
  *NOTE* replace Y/Z with decimal value of megabyte for the PFA
         heap size.  Y is for the minimum size, Z is for the
         maximum size.
  ie:    -Xms64m
   -Xmx192m
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * all z/OS 2.5 (HBB77DO) and above PFA                         *
  * environments                                                 *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * PFA_WLM_ADDR_SPACE_VELOCITY                                  *
  * health check issues Java Out Of                              *
  * Memory                                                       *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  

Problem conclusion

• Insufficient max allowed JVM Heap size
  for various PFA checks
  

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:

  UJ97465 UJ97466 UJ97471

Modules/Macros

• AIRJCART AIRLMARC AIRJCHK  AIRLCSAC
  

Fix information

• Fixed component name

  Z/OS PFA

• Fixed component ID

  5752SCPFA

Applicable component levels

• R7E0 PSY UJ97465

     UP25/07/09 P F507

• R7D0 PSY UJ97471

     UP25/07/09 P F507

Fix is available

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