On Wed, Jul 20, 2016 at 02:52:10PM -0400, linnading wrote: Hi there,
> It is "to the same upstream server" that I care about. I would like to > limit the request rate to the same upstream server. That makes sense, thanks. I am not aware of a way to achieve this directly in stock nginx. I see that there is a third-party module at https://github.com/cfsego/nginx-limit-upstream which looks like it aims to do what you want; and I see that nginx-plus has a "max_conns" value per server in an upstream block, documented at http://nginx.org/en/docs/http/ngx_http_upstream_module.html#server If non-stock is ok for you, possibly one of those can work? > The Scenarios is like: > 10 requests at the same time to the same upstream server, the upstream > server should only receive requests at rate 1r/m. Last few requests will be > delayed or rejected. But for these last few requests, some of them can be > served by cache, they should not be delayed/rejected. I think that the limit_* directives implementation is such that the choice is made before the upstream is chosen; and there are no explicit limits on the connections to upstream. That is likely why the third-party module was created. Cheers, f -- Francis Daly [email protected] _______________________________________________ nginx mailing list [email protected] http://mailman.nginx.org/mailman/listinfo/nginx
