On 2021-12-22 8:53 p.m., huiming wrote:
Francis Daly??
?0?2extremely appreciative of your feedback.
?0?2 ?0?2 ?0?2Any suggestion for third-party module that does some form of
internal bandwidth limiting?
Disclaimer: this is not a specific nginx reply. And it's not
third-party. You can profile all uses of bandwidth within a linux
environment using tc (please see
<https://man7.org/linux/man-pages/man8/tc.8.html>)
Season's greetings to all on list,
Paul
---
Tired old sys-admin.
thanks
huiming
------------------?0?2Original?0?2------------------
*From:* "nginx" <fran...@daoine.org>;
*Date:*?0?2Thu, Dec 23, 2021 07:47 AM
*To:*?0?2"nginx"<nginx@nginx.org>;
*Subject:*?0?2Re: bandwidth limit for specific server
On Sat, Dec 18, 2021 at 01:37:11PM +0800, huiming wrote:
Hi there,
>?0?2?0?2 Is it possible to limit total bandwidth for server?
Using only stock nginx, I believe the answer is "yes, but not in a way
that you would want; so effectively no".
You can limit the number of concurrent (active) connections; you can
limit the rate of requests that nginx will process; and you can limit
the response bandwidth for each request.
By combining those, you can put an upper limit on the response bandwidth;
but I suspect that it is unlikely to be useful for you.
You might be happier looking for a third-party module that does some
form of internal bandwidth limiting; or use something outside of nginx
to limit the bandwidth.
The latter would probably be simpler if your chosen server_name was
the only one this nginx handled; or if the IP address were dedicated to
this server_name -- in those cases, the external thing would not need to
know much (or anything?) about what nginx is doing; it could just handle
"traffic from this process group", or "traffic from this IP address".
>?0?2?0?2 server {
>?0?2?0?2?0?2?0?2 listen?0?2?0?2 443 ssl;
>?0?2?0?2?0?2?0?2 server_name x.x.x.x.x;
>
>
>?0?2?0?2?0?2?0?2 is it possible to limit total bandwidth for this server to for
example 5M ? not to limit TCP connection bandwidth. need total bandwidth.
It is using the TCP connection bandwidth limit; but if you were to
"limit_rate" to 1m and "limit_req" to 5 r/s, then you would not use
more than 5M (bps) -- but you would probably normally end up using less
than that; because individual requests would not use 5, while multiple
requests would probably lead to lots of small failure responses.
Good luck with it,
f
--
Francis Daly?0?2?0?2?0?2?0?2?0?2?0?2?0?2 fran...@daoine.org
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