Zend certified PHP/Magento developer

Suggestions on Management and Monitoring systems(Cockpit alternatives) [closed]

I have been using cockpit for ages now to manage my instances/servers for a single panel and it worked perfectly until I had to scale it a lot. Right now, I have 4 cockpit installations acting as masters managing over 70 servers but this task has become somewhat problematic as cockpit hangs up a lot after an installation gets more than 10 servers added and it’s limit is 20 servers.

I am looking for alternatives of the Cockpit project. Here is what I’ve been looking for:

  1. Open Source
  2. Terminal Access (I just want htop)
  3. Monitoring System as well (Cockpit does not have any monitoring features)
  4. Able to manage 100+ servers over SSH

Could anybody point me in the right direction?