I need a Linux / webserver specialist ASAP.
My webserver is having problems the last six weeks. From one day to another the load average went to 200+ and the webserver crashed. Now this is happends two times a day. Around 14:00 UTC+1 and around 17:30 UTC+1.
The webserver didn't have any problems the last two years.
My webhost thought it was the old OS, Demon 4. They installed a new and better (vps) server for me with the latest updates and CentOS 6.2.
I migrated the website four week agi to the new server with directadmin (backup / restore user) and changed the DNS to the new VPS server.
I updated Wordpress to the latest version, updated the Invisionpowerboard forum but the load average is still going nuts two times a day.
See pictures about “Loadaverage” info and “offline” for the times the site was offline and the movie link.
The issue was not fixed!
I placed this project [url removed, login to view] . But there was no solution.
and i placed this project
[url removed, login to view]
The specialists did this:
Installed a firewall (ConfigServer Security & Firewall) (its now disabled)
changed Apache settings
updated CentOS to 6.3
Did a lot of tweaking
Disabled Cronjobs and zabbix (its now enabled)
and setup the load average script to restart httpd service when load is 5 >
The problem is still occurring with the CSF firewall on or off. The custom load average script called /[url removed, login to view] is checking the load average. When its 5> it kills all httpd and restarts the httpd service.
One of the specialist thinks I’m getting a (scheduled) ddossed because of the many httpd request at the times the server is getting a high load. The second specliast is sure is it not ddos..
After the tuning there is another problem, all the users are complaining about the site that is not loaded sometimes. When you browse the site / forum every +-40 request the webpage can’t be found. This message is instantly. So when you click a link, the message comes up “Page can not be found” when you press F5 the page exists. This occurs with all the pages randomly. Even the root of the site etc.
This was fixed by the second specialist to change the “iptables rate limit”. After a reboot last night the server issue “site not loaded” is back. So the iptables rate limit needs to be fixed again.
The server is running
All plugins and software are up to date.
I need a good specialist ASAP, that is sure about fixing the problem. Maybe there is a wrong website code / script. I really want a solution asap.
Fix the high load average problem that occurs one in a while and that is crashing the webserver and fixing the “page not found” problem. And a good webserver (apache / sql etc) configuration.
Please read this project before taking it. There where two specialist already that couldn't find the solution.
I had the exact same problem on the old webserver with an other OS and other settings. The problem also exists on this new server. There has been done a lot of tweaking with no solution. I’m almost sure its is some script or webcode that looks to be running 2 times a day.
Here is a movie created when the problem occurd!
[url removed, login to view]
It happens around +- 5 min and 50 seconds. (You need to change the videoquality to 720p see it good)
There is a script running at the moment (/[url removed, login to view]) to restart httpd when the load is higher then 5. When you disable the script the website will crash and is down. You need to restart httpd then manually or fix the issue. Please be AWARE of this. When you disable it you need to monitor the site to restart the service to get the website up and running.
You really need to have the time to fix the issue.
And please have gtalk.