Hello!

On Tue, Jul 04, 2017 at 04:01:44AM -0400, guruprasads wrote:

> Hi,
>
> I am trying to tune nginx server.
> I want to restrict number of client connection per server and restrict
> bandwidth.
> I tried
> worker_connections 2;
> for max connections in nginx.conf file.
> but its connecting only after worker_connection value set to 7.
>
> my conf file look like below.
>
> user nginx;
> worker_processes auto;
> error_log /var/log/nginx/error.log;
> pid /run/nginx.pid;
>
> # Load dynamic modules. See /usr/share/nginx/README.dynamic.
> include /usr/share/nginx/modules/*.conf;
>
> events {
> worker_connections 7;
> }
>
> thanks.

The worker_connections directive is to control number of internal
connection structures in nginx. It should not be set to low
values, as these structures are used in many places in nginx -
including listening sockets, client connections, connections to
upstream servers, and so on. And shortage of these structures
will result in fatal errors. Instead, you may want to use large
numbers if you want to handle reasonable load, as default 512 is
very small in the modern world.

If you want to limit connections, consider using the limit_conn
module instead see here:

http://nginx.org/en/docs/http/ngx_http_limit_conn_module.html

To restrict bandwidth on a per-connection basis, there is
the limit_rate directive (http://nginx.org/r/limit_rate).

--
Maxim Dounin
http://nginx.org/
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