Gitlab 6.0 With Apache mod_proxy to Unicorn

[Kyle Fazzari]

Hey everyone.

I'm trying to get Gitlab 6.0 working with Apache proxying traffic to Unicorn. I've setup Gitlab according to the README, and all the take tests pass. However, whenever I try to visit the site that uses the proxy, after a little bit I get:

502 Proxy Error

The proxy server received an invalid response from an upstream server.
The proxy server could not handle the request GET /users/sign_in.

Reason: Error reading from remote server

Here is my Apache vhost config:

<VirtualHost _default_:80>
        ProxyPass /uploads !
        ProxyPass /error !

        ProxyPass / http://127.0.0.1:8080/
        ProxyPassReverse / http://127.0.0.1:8080/
        ProxyPreserveHost On

        CustomLog /var/log/apache2/gitlab/access.log combined
        ErrorLog /var/log/apache2/gitlab/error.log
        LogLevel debug

        # Modify path to your needs (needed for downloading attachments)
        DocumentRoot /home/git/gitlab/public

        <Location />
                Order allow,deny
                Allow from all
        </Location>
</VirtualHost>

I set the log level to debug and see this in the Apache error log. Does this mean anything to anyone? Note that this is a little ARM server, and things go a little slow. I wonder if this problem is related, and what I can do to fix it.

[Sat Aug 31 13:43:17 2013] [debug] proxy_util.c(1818): proxy: grabbed scoreboard slot 0 in child 3754 for worker http://127.0.0.1:8080/
[Sat Aug 31 13:43:17 2013] [debug] proxy_util.c(1914): proxy: initialized worker 0 in child 3754 for (127.0.0.1) min=0 max=25 smax=25
[Sat Aug 31 13:43:17 2013] [debug] proxy_util.c(1818): proxy: grabbed scoreboard slot 0 in child 3755 for worker http://127.0.0.1:8080/
[Sat Aug 31 13:43:17 2013] [debug] proxy_util.c(1837): proxy: worker http://127.0.0.1:8080/ already initialized
[Sat Aug 31 13:43:17 2013] [debug] proxy_util.c(1914): proxy: initialized worker 0 in child 3755 for (127.0.0.1) min=0 max=25 smax=25
[Sat Aug 31 13:43:21 2013] [debug] mod_proxy_http.c(56): proxy: HTTP: canonicalising URL //127.0.0.1:8080/
[Sat Aug 31 13:43:21 2013] [debug] proxy_util.c(1506): [client 10.0.2.2] proxy: http: found worker http://127.0.0.1:8080/ for http://127.0.0.1:8080/
[Sat Aug 31 13:43:21 2013] [debug] mod_proxy.c(998): Running scheme http handler (attempt 0)
[Sat Aug 31 13:43:21 2013] [debug] mod_proxy_http.c(1966): proxy: HTTP: serving URL http://127.0.0.1:8080/
[Sat Aug 31 13:43:21 2013] [debug] proxy_util.c(2011): proxy: HTTP: has acquired connection for (127.0.0.1)
[Sat Aug 31 13:43:21 2013] [debug] proxy_util.c(2067): proxy: connecting http://127.0.0.1:8080/ to 127.0.0.1:8080
[Sat Aug 31 13:43:21 2013] [debug] proxy_util.c(2193): proxy: connected / to 127.0.0.1:8080
[Sat Aug 31 13:43:21 2013] [debug] proxy_util.c(2444): proxy: HTTP: fam 2 socket created to connect to 127.0.0.1
[Sat Aug 31 13:43:21 2013] [debug] proxy_util.c(2576): proxy: HTTP: connection complete to 127.0.0.1:8080 (127.0.0.1)
[Sat Aug 31 13:43:31 2013] [debug] mod_proxy_http.c(1736): proxy: start body send
[Sat Aug 31 13:43:31 2013] [debug] mod_proxy_http.c(1840): proxy: end body send
[Sat Aug 31 13:43:31 2013] [debug] proxy_util.c(2029): proxy: HTTP: has released connection for (127.0.0.1)
[Sat Aug 31 13:43:31 2013] [debug] mod_deflate.c(615): [client 10.0.2.2] Zlib: Compressed 96 to 92 : URL /
[Sat Aug 31 13:43:31 2013] [debug] mod_proxy_http.c(56): proxy: HTTP: canonicalising URL //127.0.0.1:8080/users/sign_in
[Sat Aug 31 13:43:31 2013] [debug] proxy_util.c(1506): [client 10.0.2.2] proxy: http: found worker http://127.0.0.1:8080/ for http://127.0.0.1:8080/users/sign_in
[Sat Aug 31 13:43:31 2013] [debug] mod_proxy.c(998): Running scheme http handler (attempt 0)
[Sat Aug 31 13:43:31 2013] [debug] mod_proxy_http.c(1966): proxy: HTTP: serving URL http://127.0.0.1:8080/users/sign_in
[Sat Aug 31 13:43:31 2013] [debug] proxy_util.c(2011): proxy: HTTP: has acquired connection for (127.0.0.1)
[Sat Aug 31 13:43:31 2013] [debug] proxy_util.c(2067): proxy: connecting http://127.0.0.1:8080/users/sign_in to 127.0.0.1:8080
[Sat Aug 31 13:43:31 2013] [debug] proxy_util.c(2193): proxy: connected /users/sign_in to 127.0.0.1:8080
[Sat Aug 31 13:43:31 2013] [debug] proxy_util.c(2444): proxy: HTTP: fam 2 socket created to connect to 127.0.0.1
[Sat Aug 31 13:43:31 2013] [debug] proxy_util.c(2576): proxy: HTTP: connection complete to 127.0.0.1:8080 (127.0.0.1)
[Sat Aug 31 13:44:03 2013] [error] [client 10.0.2.2] (20014)Internal error: proxy: error reading status line from remote server 127.0.0.1:8080
[Sat Aug 31 13:44:03 2013] [debug] mod_proxy_http.c(1458): [client 10.0.2.2] proxy: NOT Closing connection to client although reading from backend server 127.0.0.1:8080 failed.
[Sat Aug 31 13:44:03 2013] [error] [client 10.0.2.2] proxy: Error reading from remote server returned by /users/sign_in
[Sat Aug 31 13:44:03 2013] [debug] proxy_util.c(2029): proxy: HTTP: has released connection for (127.0.0.1)
[Sat Aug 31 13:44:03 2013] [debug] mod_deflate.c(615): [client 10.0.2.2] Zlib: Compressed 480 to 321 : URL /users/sign_in