JR56444: SERVER RUNS OUT OF MEMORY AND YOU SEE NUMEROUS INSTRUMENTATION RECORDS IN HEAP DUMPS

bpm.8570.cf2016.09.delta.repository.1of2
bpm.8570.cf2016.09.delta.repository.2of2
Downloading IBM Business Process Manager V8.5.7 Cumulative Fix 2016.09

APAR status

• Closed as new function.

Error description

• After the IBM Business Process Server (BPM) server has been
  running for some time, operations might start to fail.
  The SystemOut.log file shows OutOfMemoryError stack traces.
  Analyzing the heap dumps created by the Java Virtual Machine
  (JVM), you see numerous objects of class
  com.lombardisoftware.instrumentation.core.InstrumentationRecord.
  
  
  About 17gb of a 20gb heap are used by Instrumentation
  records,
  17,579,088,760 (85.58%) [32] 9 class
  com/lombardisoftware/instrumentation/jmx/InstrumentationManager
  0x308e99718
  |- 17,579,088,576 (85.58%) [32] 52 class
  com/lombardisoftware/instrumentation/core/InstrumentationManager
  0x308e932a0
  

Local fix

Problem summary

• The server captures instrumentation records during runtime to
  provide statistics, such as about the cache utilization, in the
  Process Admin Console.
  The threads that perform process and task operations create
  these records, which are processed to prepare the statistics.
  In certain load scenarios, more records might be created than
  can be processed, leading to out-of-memory errors.
  

Problem conclusion

• A fix will be included in the IBM Business Process Manager (BPM)
  V8.5.7 2016.09 cumulative fix.
  
  To determine whether the cumulative fix is available and
  download it if it is, complete the following steps on Fix
  Central:
  
  1. Select IBM Business Process Manager with your edition from
  the product selector, the installed version to the fix pack
  level, and your platform, and then click Continue.
  2. Select Text, enter ?cumulative fix?, and click Continue.
  

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:

Fix information

• Fixed component name

  BPM STANDARD

• Fixed component ID

  5725C9500

Applicable component levels