Mongrel freezing – monitoring tools

My Mongrel staging server ‘freezes’ after 2-3 days of uptime. Nothing in the logs, of course. No abnormal memory usage increase.

The first sollution was: Supervize +  bash script that restarted the server if a http request received a timeout. However, this is an ugly sollution.

Below are some of the monitoring/debugging tools i have found after a little bit of research. Continue reading