meaning of notice "using inherited sockets"

[Ruslan Ermilov]

On Mon, Jan 09, 2012 at 11:56:27AM -0500, simonyarde wrote:
> Can anyone confirm whether or not the below is cause for concern?

Notices are normal (notification) messages.

>   2012/01/09 13:21:13 [notice] 364#0: using inherited sockets from
> "/opt/nginx/   sbin/nginx"
>   2012/01/09 13:21:13 [notice] 470#0: using inherited sockets from
> "/opt/nginx/   sbin/nginx"

In this case, an nginx binary is being replaced, as per
http://nginx.org/en/docs/control.html#upgrade
and a new binary gains control over listening sockets of the
old binary.

> Ideally could someone point me to documentation for Nginx
> warnings/notices.