I have just had a server halt itself and it took me some time to
notice. I am planning on implementing some application monitoring
using an external service that polls the website from outside. If it
can't reach it then it will SMS me or something. (I would like Prowl
on my iPhone and Mac at the same time).
I could point the monitoring service at one of the application URLs
but I wondered whether anyone had come up with a better idea along the
lines of creating some external monitoring URL, performing a GET and
then returning some additional information in the XML response, such
as response time, SQL execution time, number of users logged on,
memory usage etc etc.
Any thoughts? Is there a plugin or gem about?