Thread: Slow response
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Old 22nd May 2007, 15:40
Morons Morons is offline
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Angry Slow response

HI,
I am without resolve on this one, out of the blue, one of my servers thats been running for weeks now, suddenly become almost impossible to log into. the login process from the consile / ssh and even all ports 110 ans 25 seem tot timeout to a couple minutes!!
My initial thoughts was that his server run out of some resource or another. however I can not detect the resource nor the process in error.

By using top i can indicate an running system - althow slow it seem to function

top - 14:25:40 up 26 min, 2 users, load average: 115.32, 103.99, 69.81
Tasks: 307 total, 2 running, 289 sleeping, 0 stopped, 16 zombie
Cpu(s): 20.9%us, 1.3%sy, 0.0%ni, 0.0%id, 77.2%wa, 0.3%hi, 0.3%si, 0.0%st
Mem: 515896k total, 510960k used, 4936k free, 1416k buffers
Swap: 1510068k total, 1478364k used, 31704k free, 13020k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
5264 nyl-cass 17 0 27508 2084 584 D 8.6 0.4 0:13.59 clamscan
6712 top-henn 17 0 10192 8512 1616 D 7.3 1.6 0:00.44 spamassassin
4638 kliek-au 17 0 27244 1792 572 R 2.0 0.3 0:08.93 clamscan
6484 lim-lind 16 0 14908 9084 1680 D 1.7 1.8 0:00.69 spamassassin
5583 root 16 0 2580 1232 788 R 0.7 0.2 0:06.39 top
6414 nyl-flip 16 0 17628 12m 1728 D 0.7 2.4 0:00.70 spamassassin
6514 am-ambro 16 0 18284 10m 1752 D 0.7 2.0 0:00.76 spamassassin
6759 nyl-bouw 16 0 10208 8516 1616 D 0.7 1.7 0:00.41 spamassassin
6767 djd-joha 16 0 10204 8512 1616 D 0.3 1.6 0:00.40 spamassassin

If i reboot the server with
Code:
shutdown -r now
It take 30-40 minutes ands some services like MYSQL fail to stop, eventually it seem to reboot.
If i stop postfix, no change.
What can I test for, how can I seek the problem.

I had this issue with an smaller server (mandriva+mailbox), replaced it eventually with (ubuntu 7.04+maildir), but I cant keep on re-building and replacing servers, instead of repairing some missbehaving part.

Last edited by Morons; 22nd May 2007 at 17:35.
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