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[Solved] High load web server

Me again,

I'm running a news publishing system on an octacore amd server with 24GB ram. PHP seems to be running every core to the full. I need to know whether I can bring this load down. I know the question may seem desperate and stupid but I can't upgrade the server at least for the next couple of days.

I'm attaching the htop screenshot

http://i1196.photobucket.com/albums/...pse75ee404.png

Here's the prefork MPM portion of httpd.conf

Code:



<IfModule prefork.c>

StartServers      8

MinSpareServers    5

MaxSpareServers  20

ServerLimit      256

MaxClients      256

MaxRequestsPerChild 0

</IfModule>

Here's the fcgid.conf

Code:

  FcgidIdleTimeout 60

  FcgidProcessLifeTime 30

  FcgidMaxProcesses 256

  FcgidMaxProcessesPerClass 20

  FcgidMinProcessesPerClass 0

  FcgidConnectTimeout 30

  FcgidIOTimeout 45

  FcgidInitialEnv RAILS_ENV production

  FcgidIdleScanInterval 10

Server specs:
AMD Octacore
24GB RAM
2TB HDD
CentOS 6.5
Plesk 11.5

1) might required application fine tune apache
2) check the i/o (service time & utilization on disk iostat -kdx)
3) it's virtual server or physical then need to set the elevator to fine tune the kernel
3) if possible to install the oswatcher which can give you the most valuable logs to analysis

Thank you for the feedback, I'll look into this.

Try xcache or APC, if you are serving web pages and that is what is causing the load try to put varnish in front of it. With that spec you should be able to serve obscene amounts of requests.

Quote:

Originally Posted by scarleo (Post 5128542)

Try xcache or APC, if you are serving web pages and that is what is causing the load try to put varnish in front of it. With that spec you should be able to serve obscene amounts of requests.

Yes, its for web pages and yes there is no cache being used currently. We're rushing cache implementation for this.

This has been solved.

Updated the application to use memcached and now the server cores are idling between 2-5% each, with more traffic than before.

Thank you all for your valuable input.