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I have a server at rackshack (ev1), it's a P4 2gig / 1024Meg ram. We run a half-life server on it, and since we've had it the hl server has always had a wierd "pausing" problem. What happens is gameplay is fine, but every couple minutes the server seems to pause, the client netgraph jumps to timeout for about 5- 10 seconds. First thought was network problem but thier techs supposedly checked it out, and we've never had problems with corruption on large file downloads. The netgraph in hlsw also shows a red spike whenever it ahppens to the players, but when no players are on the server it's perfect. So it happens as soon as the server has a steady load. It also seems to lockup the ssh session for the same time. So we ruled out a network problem after it was tested, and we had them restore the box to a clean install. Still continued... So we're down to hardware. My question is (yes, finally) how do we start diagnosing hardware problems in linux? Are there diagnostic apps for checking the processor, etc? I'd appreciate any response with an idea to try or suggestion. Thanks. btw its Red Hat Linux release 7.3 (Valhalla) 2.4.20-18.7 #1
Are there any system wide (or personal) cron jobs that could make it choke like that? updatedb or something like that? Do you have a console running top on the server so you can quickly check what's eating CPU cycles when the server chokes?
We've had "top" running to check, and it freezes up during the "pause" so we can't tell. The 3 load averages don't seem to change at all, and there's no cron jobs like those. The times it happens in the server are seemingly random anyway, just every couple minutes for a few seconds.
It's not the clients if that's what you mean, believe me I made sure of that. Everyone gets the same lag burst at the same time. The network checked out, so it has to be hardware. Any other suggestions?