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I have a Linux server; mysql and http are not responding to outside monitoring. Help?

The server is responding to ping. But, I am seeing the http and mysql services down on outside monitoring (nagios). The last couple lines on the console say: free swap: 0kb total swap:491512kb I'm wanting to know what I should do besides resetting the server. Thanks.

Public Comments

1. It looks like you exhausted your swap, which most likely means you are right out of memory. Your best bet for diagnostics is to examine the current memory usage of the processes on your machine, as well as the information from /proc/slabinfo to determine what was hogging it all. You can do this if you can obtain console access to the machine. Once you find the culprit, track down the mailing list and see if anyone has experienced similar issues. Try the logs in /var/log as well. They can contain very useful information and will persist after a reboot.