On Wed, 2004-10-27 at 16:26, Lanman wrote:
I just noticed that 'X' is going crazy on my server. It seems to have been using the swap partition like it was going out of style, because the hard drive was working overtime as well.
In fact, I was unable to log into the server via ssh for almost an hour because it was too overloaded, and as soon as I did, 'top' showed me this;
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 8379 root 25 0 55936 52 51m R 99.2 0.0 628:08.75 X
I should point out that the only other thing running was 'rpmq' at here are it's results from 'top', while everything else was sitting at zero,
that is no CPU or Memory was being used by any other processes.
20047 root 34 19 5564 2164 3212 R 0.3 0.4 0:00.01 rpmq
Can anyone shed some light on this? I had one terminal connected and waiting to login to the LTSP server at the time, but nothing else was happening. By looking at my network switch and ADSL modem I could see that this wasn't due to any type Internet traffic.
The moment I shut down the terminal, the server returned to normal. Could X demand that much power from the server for any particular reason when the server is essentially sitting idle?
Would this just be some sort of runaway process? I wonder how it would even start in the first place? ideas? Thoughts?
My experience: a bad NIC or switch connection would be generating a lot of useless load. Happened to me once but that was NIC on the server. Posted this on the list a while back.
HTH
Thanks Sudev. I'll try changing the network cards for new ones to see if that started the problem. I suspect it was some sort of runaway process, but I don't know what might have done it. I'm especially interested in finding out if this happens again, so I'm going to repeat the same conditions to see what happens and I'll post the results back to the list.
-- Lanman Registered Linux User #190712
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