I installed os agent and mongo db agent on a Red Hat Enterprise Linux release 6.4 (Santiago) (64b)
After first installation the os agent and mongo agent were available on APM UI.
After a reboot, the os agent never showed up again.
The one already added to a test application is shown greyed out, and using the '+' to add a new application does not detect any OS agent
I tried reinstalling the agent but no changes
the Mongodb agent shows up properly.
It is possible that my machine has taken a different ip after the reboot (not sure this is an interesting info)
WHat can I do to troubleshoot it ?