id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	uname	nginx_version
2243	"grpc_socket_keepalive	on;  Doesn't work"	f4nff@…		"{{{
    server {

		listen 443	ssl http2;
		server_name	d1h.xyz;
		access_log	/dev/null ;
		error_log	/dev/null ;


		ssl_certificate 			../tls/d1h.xyz.pem;
		ssl_certificate_key 		../tls/d1h.xyz.key;
		ssl_protocols		TLSv1 TLSv1.1 TLSv1.2 TLSv1.3;
	
        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        location / {
            grpc_pass grpcs://223.5.5.5:443;
			grpc_socket_keepalive	on;
			grpc_ssl_protocols TLSv1.3;
			grpc_send_timeout 60s;
			grpc_read_timeout 60s;
			grpc_next_upstream_tries 0;
			grpc_next_upstream_timeout 0;

        }

	}
}}}


After testing, turn on grpc_socket_keepalive on; the connection will also be actively disconnected.

grpcs It should be a long connection, I use tcp forwarding, there is no problem. 

{{{
stream {
      server {
             listen 8443;
             proxy_pass 223.5.5.5:443;
             proxy_connect_timeout 10s;
             proxy_timeout 15s;
               }
   }
}}}
"	defect	closed	minor		documentation	1.19.x	invalid			"Linux WIKIHOST-210831V4Q1K8 5.4.0-81-generic #91-Ubuntu SMP Thu Jul 15 19:09:17 UTC 2021 x86_64 x8
64 x86_64 GNU/Linux"	"built by gcc 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04)
built with OpenSSL 1.1.1l  24 Aug 2021
TLS SNI support enabled
configure arguments: --prefix=/etc/nginx --with-http_stub_status_module --with-http_ssl_module --w
h-http_v2_module --with-http_gzip_static_module --with-http_sub_module --with-openssl=/root/openss
1.1.1l --with-stream"