too many open files

[Joooop]

Hello,
I have Plesk on my server and there is about 380 web hosting on this server.
recently I got "too many open files in system" error. I google it and found its solution at http://howtounix.info/howto/Nginx-error-accept-failed-24-too-many-open-files
now every thing is normal except on little problem
every time I change a subscription status (changing its plan, Activate or suspend it) or even when I add a new subscription plesk return an error. error is about "Too many open files" and it say nginx test failed. then I have to connect to server with SSH and run "/usr/local/psa/admin/sbin/httpdmng --reconfigure-all" to fix the issue.
I think plesk panel do not use my new setting for open file limit. is there any solution for this problem?

mehran

Server is a dual Xeon with 16GB ram
OS is Centos 5.8 x64 final and all the updates are installed

 

[IgorG]

Perhaps it can be Apache limit. Look at the article http://kb.parallels.com/260

 

[Joooop]

thanks for your reply, I'll try it tonight and inform you about its result.