Question worker_connections are not enough

[LucaB.]

Hi,
we have a Plesk 12.30 #60 with nginx. In this server (2CPU and 2GB RAM) are running 50 websites and this morning ngnix writes "worker_connections are not enough". In /etc/nginx/nginx.conf I've changed it from 1024 to 2048. it's enough? There are other parameters to be controlled?

The website will increase to 70 in a few days.

Luca

 

[IgorG]

There is following formula for determining nginx worker_processes and worker_connections:

max_clients = worker_processes * worker_connections

Where worker_processes [number of processor cores], for instance:

# cat /proc/cpuinfo |grep processor
processor : 0
processor : 1
processor : 2
processor : 3
processor : 4
processor : 5

So,

worker_processes 6;

Thus, you can calculate the desired value for worker_connections

 

[LucaB.]

Hi,
I found this solution to understand how many work_connections are running now: https://talk.plesk.com/threads/enable-nginx-stub-status-module.341838/
but it's little bit old. It's correct for a Centos7 with plesk 12.5.30#60 server?

Thanks.

Luca

 

[IgorG]

Hi,
I found this solution to understand how many work_connections are running now: https://talk.plesk.com/threads/enable-nginx-stub-status-module.341838/
but it's little bit old. It's correct for a Centos7 with plesk 12.5.30#60 server?

Thanks.

Luca

Yes, it is not so old, because it is solution for Plesk Onyx and I think it should work for outdated Plesk 12.5 too.