I have a dual xeon server, 4Gb of Ram - the server runs fine pretty much all the time but this morning the server became unresponsive and I could access it over httpd or ssh.
The server was rebooted and I manged to get an ssh session just after the reboot for a few moments until I couldn't coninue as the server had apparently run out of ram. Another reboot and I got on again via ssh but when I tried to su ssh couldn't fork as it was out of ram already (less than 1 minute after coming up). There is something obviously wrong as ther server rarely uses more than about 1.2Gb of ram at anytime.
I would normally put this behaviour down to high traffic but the server is really quiet today and there is nothing to suggest that we are being dos'd or there are any large traffic spikes. MRTG on the swich shows now large burts of traffic.
I second suspicion is that there is a hardware fault of the server - however we had the exact same experience with the server hanging a few months ago which went away as quickly as it came and we have been fine since then.
There has been no new scripts uploaded to the server recently either.
Has anyone seen anything like this before on a server running cpanel? The forums don't suggest much - mostly people running unoptimised mysql (mine is optimised).
Any thoughts?
The server was rebooted and I manged to get an ssh session just after the reboot for a few moments until I couldn't coninue as the server had apparently run out of ram. Another reboot and I got on again via ssh but when I tried to su ssh couldn't fork as it was out of ram already (less than 1 minute after coming up). There is something obviously wrong as ther server rarely uses more than about 1.2Gb of ram at anytime.
I would normally put this behaviour down to high traffic but the server is really quiet today and there is nothing to suggest that we are being dos'd or there are any large traffic spikes. MRTG on the swich shows now large burts of traffic.
I second suspicion is that there is a hardware fault of the server - however we had the exact same experience with the server hanging a few months ago which went away as quickly as it came and we have been fine since then.
There has been no new scripts uploaded to the server recently either.
Has anyone seen anything like this before on a server running cpanel? The forums don't suggest much - mostly people running unoptimised mysql (mine is optimised).
Any thoughts?