Why JVM metrics is removed in 0.4.0?

[evanmeng]

There are JVM related matrix in 0.3.0, and we are using them. But they disappeared in 0.4.0.
Is there any reason to remove them? Or any recommended alternative to get these metrics back?

[alexism]

Hi @evanmeng

for JVM metrics, we standardize on https://github.com/airbnb/jmxtrans , that's why the JVM metrics were removed from the kafka reporter.

I think these metrics should not be reported by default, however we could have a configuration parameter to switch them on. would you care to send a PR?

thanks

Alexis

cc @jun-he