Using single persistent socket to send subrequests

[Sergey A. Osokin]

Hi Devashi,

On Mon, Jan 24, 2022 at 05:52:56AM +0000, Devashi Tandon wrote:
> 
> We have the following configuration:
> 
> location / {
>     proxy_http_version 1.1;
>     proxy_pass http://ext-authz-upstream-server;
> }
>
> upstream ext-authz-upstream-server {
>     server 172.20.10.6:9006;
>     keepalive 4;
> }
> 
> Do I need to add any other configuration to reuse the first four socket connections besides keepalive 4?

You'd need to review and slightly update the `location /' configuration
block by adding the following directive:

    proxy_set_header Connection "";

Please visit the following link to get more details:
https://nginx.org/en/docs/http/ngx_http_upstream_module.html#keepalive

-- 
Sergey Osokin