I have a few 9.5.2 environments with MoM and X number of collectors (6, 8, or 10 collectors). When I restart my environment, it takes around 30 minutes to be able to connect to the MoM via webview or java client. Watching the logs during this time there are no visible issues going on and agents are connecting to the collectors, the MoM just seems to be "stuck". After some period of time, I can connect and everything works as expected and I see no slowdowns again unless I restart the environment at which time the exact same thing will occur.
So couple of questions:
Anyone seen this behavior? And if so, do you know if 9.5.3 fixes the issue?