I have a server that recently got knocked offline when when a blog article hosted on the box made the front page of Hacker News. From what I've heard, it seems like the server became unresponsive when it ran out of memory from the deluge of requests.
Does anyone know if there's a way to configure the system to notify me somehow when memory usage gets really high, so that I can start to scale out the system or shut off some processes?
I'm certainly not that experienced with this stuff, but a quick Google search turned up nothing. Let me know if I'm way off base or there's a better monitoring solution. Thanks!