set socket buffer when proxy request

[drawing]

Add proxy_sndbuf_size and proxy_rcvbuf_size command to set the socket buffer when proxy request.

[lhanjian]

good idea!
But maybe we should put this configuration variable in the upstream-related module?
Otherwise, it will be difficult to maintain too many proxy modules.

in nginx core module,
it use

listen 12345 sndbuf=XXX

May we design a sndbuf setup that looks more like the nginx community?

​upstream {
server a sndbuf=XXX;
}

or

upstream {
sndbuf 1024k;
server a;
}

It's interesting. Nginx never set rcvbuf to other value……

[lianglli]

The recv and snd parameter for setting the socket buffer of ngx_http_fastcgi_module and ngx_http_proxy_module

[harry-xm]

Is SO_RCVBUF set on the socket? I can't find the corresponding setsockopt() call in the patch.