Nginx reload intermittenlty fails when protocol specified in proxy_pass directive is specified as HTTPS

[shivramg94]

Just one quick question. Does Nginx check if the upstream servers are
reachable via the specified protocol, during the reload process? If say, in
this case the upstreams are not accepting ssl connections, will the reload
fail?

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,277399,277418#msg-277418