Welcome! Log In Create A New Profile

Advanced

Re: nginx won't honor limit_rate

Maxim Dounin
September 30, 2011 11:20AM
Hello!

On Fri, Sep 30, 2011 at 10:56:41PM +0800, li zJay wrote:

> hello!
>
> If you want nginx to don't touch disk, use
> >
> > proxy_max_temp_file_size 0;
> >
> > instead. This will still allow in-memory buffering and wouldn't
> > touch disk.
> >
>
> Because the client bandwidth is usually slow, in this case, tons of upstream
> content will be buffer in memory before sent out to client, and then the
> swap will be used and the server is going down soon.

The limit on memory usage for proxy buffering is set with
proxy_buffers directive, 8 * pagesize by default. Nobody stops
you from setting it even lower if you are memory-constrained.

The "proxy_buffering off;" is needed when you want response to be
immediately passed to clients once it arrives. It's critical for
streaming and similar workloads where you can't afford delays.
But it's not a switch to limit resource consumption. Instead, it
actually implies less effective resource usage: processing of
requests without buffering takes more CPU time and may cause
suboptimal network utilization.

Maxim Dounin

>
> On Fri, Sep 30, 2011 at 5:18 PM, Maxim Dounin <mdounin@mdounin.ru> wrote:
>
> > Hello!
> >
> > On Fri, Sep 30, 2011 at 04:22:52PM +0800, li zJay wrote:
> >
> > > set "proxy_buffering on", the upstream response may touch the disk
> > > this suffers a lot when nginx is used as a proxy to file download
> > servers.
> >
> > If you want nginx to don't touch disk, use
> >
> > proxy_max_temp_file_size 0;
> >
> > instead. This will still allow in-memory buffering and wouldn't
> > touch disk.
> >
> > Maxim Dounin
> >
> > >
> > > On Thu, Sep 29, 2011 at 7:31 AM, mojiz <nginx-forum@nginx.us> wrote:
> > >
> > > > Thanks Max.
> > > > It worked!
> > > >
> > > > Posted at Nginx Forum:
> > > > http://forum.nginx.org/read.php?2,215989,215991#msg-215991
> > > >
> > > > _______________________________________________
> > > > nginx mailing list
> > > > nginx@nginx.org
> > > > http://mailman.nginx.org/mailman/listinfo/nginx
> > > >
> > >
> > >
> > >
> > > --
> >
> > > _______________________________________________
> > > nginx mailing list
> > > nginx@nginx.org
> > > http://mailman.nginx.org/mailman/listinfo/nginx
> >
> > _______________________________________________
> > nginx mailing list
> > nginx@nginx.org
> > http://mailman.nginx.org/mailman/listinfo/nginx
> >
>
>
>
> --

> _______________________________________________
> nginx mailing list
> nginx@nginx.org
> http://mailman.nginx.org/mailman/listinfo/nginx

_______________________________________________
nginx mailing list
nginx@nginx.org
http://mailman.nginx.org/mailman/listinfo/nginx
Subject Author Posted

nginx won't honor limit_rate

mojiz September 28, 2011 07:06PM

Re: nginx won't honor limit_rate

Maxim Dounin September 28, 2011 07:24PM

Re: nginx won't honor limit_rate

mojiz September 28, 2011 07:31PM

Re: nginx won't honor limit_rate

lm011111 September 30, 2011 04:24AM

Re: nginx won't honor limit_rate

Maxim Dounin September 30, 2011 05:20AM

Re: nginx won't honor limit_rate

lm011111 September 30, 2011 10:58AM

Re: nginx won't honor limit_rate

Maxim Dounin September 30, 2011 11:20AM

Re: nginx won't honor limit_rate

lm011111 September 30, 2011 12:16PM

Re: nginx won't honor limit_rate

mojiz September 30, 2011 11:13AM



Sorry, only registered users may post in this forum.

Click here to login

Online Users

Guests: 71
Record Number of Users: 6 on February 13, 2018
Record Number of Guests: 421 on December 02, 2018
Powered by nginx      Powered by FreeBSD      PHP Powered      Powered by MariaDB      ipv6 ready