tree f92e90b6e82d8abbb4add5d8ad68f154f2e9f54b
parent b67dbca1caaaf2b5b4ea9a3404812a40cd4ab868
author Ruslan Ermilov <ru@nginx.com> 1353068285 +0000
committer Ruslan Ermilov <ru@nginx.com> 1353068285 +0000

Upstream: honor the "down" flag for a single server.

If an upstream block was defined with the only server marked as
"down", e.g.

    upstream u {
        server 127.0.0.1:8080 down;
    }

an attempt was made to contact the server despite the "down" flag.
It is believed that immediate 502 response is better in such a
case, and it's also consistent with what is currently done in case
of multiple servers all marked as "down".