Amon - Web application debugging and monitoring toolkit
Amon was designed with one goal in mind - to help you completely monitor your web applications.
1. System monitoring
Monitor the core metrics of your servers - RAM, CPU, disk space, etc.
2. Process monitoring
Monitor the CPU and RAM usage. Add new process with 1 line of code. Master/worker aware - perfect for monitoring web servers
3. Application logging
Log events, user and performance data. Amon doesn't restrict you to strings, so you can log dictionaries, hashes, arrays, etc. Navigate quickly through your log data with a nice and clean web interface
4. Exception logging
Catch and log Rails, Django, Node.js exceptions out of the box. Easy extendable to any language/framework that supports http and json
Amon user guide -> http://amon.cx/guide
Amon blog -> http://amon.cx/blog