Fixes are available
APAR status
Closed as program error.
Error description
Out of memory errors occur when you migrate a large number of process instances by using the multi-threading feature. The number of instances that can be handled depends on the JVM heap size, but likely would be over 100K. When analyzing the heap dump from one of these occurrence the leak suspect or object holding majority of the space would be this: com.lombardisoftware.instrumentation.core.ThreadInstrumentation
Local fix
You can avoid this issue by setting enabled to false, which disables the instrumentationfor the Process Server, in the <properties> <server> <instrumentations> section: <process-monitor> <enabled>true</enabled> <max-inactive-process-units>100</max-inactive-process-units> <max-inactive-service-units>500</max-inactive-service-units> </process-monitor>
Problem summary
Because instrumentation logs are created for each migrated instance, the logging object eventually becomes large enough to cause GC(Garbage Collection) thrashing. The object that would take up the majority of the heap is com.lombardisoftware.instrumentation.core.ThreadInstrumentation. PRODUCTS AFFECTED IBM Business Process Manager (BPM) Advanced IBM BPM Standard IBM BPM Express
Problem conclusion
A fix is available for IBM BPM V8.0.1.2 that prevents the excessive instrumentation logging during instance migration and prevent the ThreadInstrumentation object from becoming too large. On Fix Central (http://www.ibm.com/support/fixcentral), search for JR50233: 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 APAR or SPR, enter JR50233, and click Continue. When you download fix packages, ensure that you also download the readme file for each fix. Review each readme file for additional installation instructions and information about the fix.
Temporary fix
Comments
APAR Information
APAR number
JR50233
Reported component name
BPM ADVANCED
Reported component ID
5725C9400
Reported release
801
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2014-05-14
Closed date
2014-07-22
Last modified date
2015-01-12
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 ADVANCED
Fixed component ID
5725C9400
Applicable component levels
R801 PSY
UP
[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSFTN5","label":"IBM Business Process Manager Advanced"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"8.0.1","Line of Business":{"code":"LOB45","label":"Automation"}}]
Document Information
Modified date:
14 October 2021