Monitoring Agents in Teamcity

Hello,

My company runs a fairly large installation of Teamcity with 75 build agents, 112 active projects, and 1283 build configurations. We have some issues mainly with our agents, often they go down or they hang on a build and need to be restarted manually. My question is to the community and the developers if there are any good methods for monitoring agent machines to automatically restart or at least get some notification when they go down?

We're on 5.1.4 and will be upgrading to 6 soon.