id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	uname	nginx_version
347	upstream keepalive not working for HTTPS	Roy Reznik		"upstream server_1 {
    server serverhost.domain.com:443;
    keepalive 32;
}

location /proxy {
          # Remove the /proxy prefix.
          rewrite /proxy/(.*) /$1 break;  # break is necessary within a location. See the rewrite module docs.

          proxy_buffer_size   128k;
          proxy_buffers   4 256k;
          proxy_busy_buffers_size   256k;

          proxy_http_version 1.1;
          proxy_set_header Connection """";
          proxy_ssl_session_reuse on;

          proxy_buffering off;
          proxy_pass https://server_1;
        }

However when looking in tshark - I can see SSL handshake with the backend server for each request, which means the connection is not kept alive...

This causes a really big performance issue when using backend SSL servers."	defect	closed	major		nginx-core	1.2.x	fixed			Linux lnxmachine2 3.5.0-23-generic #35~precise1-Ubuntu SMP Fri Jan 25 17:13:26 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux	"nginx version: nginx/1.2.8
built by gcc 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5)
TLS SNI support enabled
configure arguments: --with-http_stub_status_module --with-http_ssl_module --with-ld-opt=-lossp-uuid --with-cc-opt=-I/usr/include/ossp --add-module=../ngx_http_gunzip_filter_module --add-module=../ngx_devel_kit-0.2.18 --add-module=../clean-lua-nginx-module --add-module=../nginx-x-rid-header --with-cc=gcc --sbin-path=/usr/sbin/nginx --conf-path=/etc/nginx/nginx.conf --pid-path=/var/run/nginx.pid --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log"