Configuring the WLS Diagnostic Framework Module Leads to a Memory Leak
(Doc ID 2316724.1)
Last updated on FEBRUARY 26, 2019
Applies to:Oracle WebLogic Server - Version 184.108.40.206.0 to 220.127.116.11.0 [Release 12c]
Information in this document applies to any platform.
When diagnostic modules are configured, it may lead to a memory leak.
After configuring diagnostic modules and starting a server instance, heap size slowly grows. Mainly the following objects:
You can check above objects from heapdump. This problem will lead to full GC and a high CPU usage percentage.
To get heapdump, use jmap or jrcmd. Refer "<Note 1922891.1> SRDC - Collect WebLogic Server Diagnostic Data - RDA, Thread and Heap Dumps" for details.
Created diagnostic modules, action and policy expressions following the documentation:
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