How does apm decides when does it needs to trace the methods

Elastic Observability APM
1

How does APM decides when does it needs to trace the java methods using java agent. Can those value be finetuned so that we can get even more trace informations?

2

Check out this part of the docs: https://www.elastic.co/guide/en/apm/agent/java/current/java-method-monitoring.html

Let me know if you have any further questions.

3

I have this notification in few of the apm stacks.

Screenshot 2020-06-24 at 01.05.34
Screenshot 2020-06-24 at 01.05.341886×484 31.7 KB

Is there anywhere documented what is the default number of items in a trace and if that number can be configured then how to do it?

4

There's a setting for both the agent (transaction_max_spans) and the UI (xpack.apm.ui.maxTraceItems).