Memory analysis for JVM

[satish]

Dear Erman,

We are on R12.2.5 with 2 apps node and 2 db node.Is there a way to identify which objects consume high memory in heap space within a jvm.(oacore)

Thank you

[ErmanArslansOracleBlog]

yes, there is a way.

You should generate a heap dump.

It is explained here -> How To Create a Java HeapDump in E-Business Suite (Doc ID 835909.1)

In general,

If you have memory issues, (outofmemory) -> then you should generate heap dump.
If you have Cpu issues (spinning on Cpus , hanging, blocking etc..)  -> then you should generate java stack trace.

I have an article about these things ..
Review it as well..

Review it -> https://ermanarslan.blogspot.com/2018/05/ebs-122-things-that-can-be-done-for.html