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openvz cpanel high usage [message #42470] Wed, 20 April 2011 13:46 Go to next message
nehro is currently offline  nehro
Messages: 6
Registered: April 2011
Junior Member
hello
i have 1 server from hetzner.de eq6
12 gb ram , 8 core.
i have on it 2 vps
1 with unlimited resource usage and another with 1gb, but its idle.

on the vps with high usage, i was hosting 400-500 sites, on cpanel, all of them were minimum sites, all were okay.
i dont know what happened but after a while the load on server is continously high

i have removed sites and now ive cutted to 100-200 active ones, but all are SMALL sites with less visitors.

i have spoken with cpanel.net and syslint.com , they told me that the cause of this is higi iowait


Linux 2.6.18-194.17.1.el5.028stab070.7PAE (21svname) 04/20/11
avg-cpu: %user %nice %system %iowait %steal %idle
2.63 0.01 3.82 25.41 0.00 68.13
Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s avgrq-sz avgqu-sz await svctm %util



i dont know were to look, what to see, because i dont see any suspicios processes in there, and i dont know howto fix this.

i tryes installing nginx , buyed license but did not helped.
i recompiled apache with dso fastcgi or memcache, not helped.
i have tryed to tun the mysql, not helped
i have deactivated stats ftom sites (like awstats etc), not helped



tell me please what to look and where to look for, i have gone crazy, i did not sleep for 3 days now
Re: openvz cpanel high usage [message #42471 is a reply to message #42470] Wed, 20 April 2011 16:07 Go to previous messageGo to next message
Ales is currently offline  Ales
Messages: 330
Registered: May 2009
Senior Member
How high is the load on the server?

You are also running an old kernel. Perhaps you should consider upgrading - try the newest RHEL5 testing kernel, it might fix your high iowait issues.
Re: openvz cpanel high usage [message #42473 is a reply to message #42471] Wed, 20 April 2011 16:16 Go to previous messageGo to next message
nehro is currently offline  nehro
Messages: 6
Registered: April 2011
Junior Member
how can i update it?
i get some error that yum-utils package already exists when i run yum update.
Re: openvz cpanel high usage [message #42478 is a reply to message #42470] Wed, 20 April 2011 18:06 Go to previous messageGo to next message
Ales is currently offline  Ales
Messages: 330
Registered: May 2009
Senior Member
Please be more specific or nobody can offer advice. I assume you're using CentOS x86_64... Have you upgraded to CentOS 5.6? Which version of vzctl are you using?

Please show the exact errors you encountered.
Re: openvz cpanel high usage [message #42480 is a reply to message #42478] Wed, 20 April 2011 18:17 Go to previous messageGo to next message
nehro is currently offline  nehro
Messages: 6
Registered: April 2011
Junior Member
i appologize.

centos 5.5
i386
i have done yum update
problem persists.
Re: openvz cpanel high usage [message #42482 is a reply to message #42480] Wed, 20 April 2011 19:29 Go to previous messageGo to next message
nehro is currently offline  nehro
Messages: 6
Registered: April 2011
Junior Member
i appologize again.
now i realised that i did not offered all datya


openvz
centos 5.5 i just used yum update and update worked
centos 5.5 i386 nod X84_64
i have 2 hdd in raid mode.


tell me please if you need more info.
regards
Re: openvz cpanel high usage [message #42485 is a reply to message #42478] Wed, 20 April 2011 20:28 Go to previous message
nehro is currently offline  nehro
Messages: 6
Registered: April 2011
Junior Member
i have documented on web and i have runed iostats.

here is 1 photo with iostat results.

i cant find processes runing.

hdds are in raid mode.
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