VPS stops responding every now and again

Posted by Or W on Server Fault See other posts from Server Fault or by Or W
Published on 2012-09-26T11:51:16Z Indexed on 2012/09/26 15:39 UTC
Read the original article Hit count: 203

Filed under:

linux

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ubuntu

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vps

I have a Linode vps that I use to host some of my websites on.

It's Ubuntu based and it's up to date in terms of all packages.

I don't have any cron jobs scheduled or any automatic processes.

I host a few (up to date) wordpress blogs there that have very little traffic altogether.

Every day (at a different time) my server stops responding, I can't SSH to it, web access is getting timed out and it just dies until I reboot it through the Linode manager.

On the linode dashboard I can see that the CPU is not very high (2-3%) Incoming/Outgoing traffic is on 0 and the IO count has a spike just before the server stops responding (SWAP IO is at 2k and IO Rate is at 5k).

When I reboot the server everything is just fine.

I'm trying to figure out a way to analyze what's going on at these random times where the server freezes up.

How can I determine the problem?

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