170% cpu loads on 8 cpu intel server

[kamall]

Hi all

I got an issu of server load

apache logs is about 1800 per second and server cpu is hits 169%

website goes down
My server info is
System Item Details Status
Server Load 169.81 (8 CPUs)
Memory Used 17.66% (5,799,544 of 32,832,344)
Swap Used 4.01% (41,980 of 1,046,520)
Any solution

thanks
Kamall,

 

[dalem]

this thread may help you
http://forums.cpanel.net/threads/troubleshooting-high-server-loads-on-linux-servers.319352/

 

[kamall]

Hello
Dalem
Do you have any configuration for cnf.my for this kind of server?

Will aprciated for helps

thank you

 

[LostNerd]

Hi @kamall,

I apologise if this sounds silly, but do you have firewall set up on your server?

Peter

 

[dalem]

Do you have any configuration for cnf.my for this kind of server?

that would total depend on what your running an what each site is using there is no one config fits all

 

[kamall]

Hi
Lostnerd

Sure we have firewall on the server.This cause is about apache.

Hello
Dalem

Server info you have above. What i dont understand is 1800 connect in sec and website goes down.

 

[24x7ss]

use netstat command and check how many connections are there on port 80. If connection is too high then it seems that server is under attack. You have to tweak apache settings and install firewall and DDOS protection tool.

 

[kamall]

use netstat command and check how many connections are there on port 80. If connection is too high then it seems that server is under attack. You have to tweak apache settings and install firewall and DDOS protection tool.

Sure we have firewall and anti DDOS protection but the question is website is very large and heavy traffic alexa rank is about 5k. over 1800 conect at sec that big! for apache setting any solution!like prefork ect

Thank you

 

[cPanelMichael]

Hello,

I suggest starting with the following thread, as mentioned earlier:

Troubleshooting High Loads On Linux Systems

It should help give you a better idea of what's causing the high load.

Thank you.