fcgi support doesn't work on shared hosting services

[ericvh]

Many shared hosting services (ie. dreamhost for me) don't allow you to specify an external fcgi by address:port and instead using fd 0 as the listen socket for the FastCGI. It would be cool if web.go supported this mode of operation unlocking relatively cheap hosting of go applications.

[hoisie]

I believe web.go doesn't work with unix sockets, which is a common configuration for fastcgi in hosted environments. I investigated some potential problems in the unix socket package, but that didn't lead to anything. Ill try to take another look.

Thanks for reporting

[hoisie]

Looking into it now...

[hoisie]

The reason it doesn't work is that Apache expects the Go program to have a traditional CGI interface -- the input it passed via STDIN and the output is through STDOUT.

After today's commit, which gives web.go the ability to control logging, this shouldn't be too difficult to support.

[hoisie]

Why doesn't that work? Is there an error message?

[Remo]

I've been trying to switch my default Apache+PHP configuration to Apache+web.go but without any success so far.

My FCGI starter script looks like this

#!/bin/sh

umask 022
exec /usr/bin/hello

I'm not sure how the communication works in such a configuration as there's no port specified anywhere. I just know that this would work with PHP. The only thing I get when I send a request to Apache is the status code 500 along with the following entry in my log file:

[Fri Dec 16 14:26:23 2011] [warn] (104)Connection reset by peer: mod_fcgid: read data from fastcgi server error.
[Fri Dec 16 14:26:23 2011] [error] [client 1.2.3.4] Premature end of script headers: php5-fcgi-starter

Any ideas on this?