why between nginx/nginx upstream use http/1.0?

Question

I have 3 server: A(nginx)-->B(nginx)-->C(nodejs),

When i access A or B,chrome use http/1.1+keepalive by default.

I do not set "proxy_http_version 1.1;" and proxy_set_header Connection "";

But between A and B,NGINX use http/1.0 by default。That is like:

client --> nginxA(upstream to b) --> nginxB(upstream to c) -->C (nodejs)

http/1.1 --> http/1.0 --> http/1.1 --> nodejs

My questions is : why nginx use http/1.1 for upstream by default，between nginx and nginx, upstream use http/1.0 ?

THX.

Are you sure you didn't configure nginx to use http/1.1 for node? — Alexey Ten, Dec 21 '16 at 18:19
Yes,I'm sure.I use Tengine-2.2.0(based Nginx-1.8.1).Thank you for your quick reply. — monkey, Dec 22 '16 at 02:26
I think i find my result:http://serverfault.com/questions/442960/nginx-ignoring-clients-http-1-0-request-and-respond-by-http-1-1 thanks~ — monkey, Jan 11 '17 at 02:52

score 10 · Accepted Answer · answered May 23 '19 at 13:46

10

Nginx since version 1.1.4 supports HTTP/1.1 when connecting to upstream servers. You just need to set configuration parameter proxy_http_version 1.1 (1.0 is the default value). see http://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_http_version

answered May 23 '19 at 13:46

1

then a question is why they have the proxy http verison default to 1.0 and not 1.1 – dtc Mar 07 '23 at 01:30

1 Answers1