504 Gateway Time-out nginx

May 21, 2014 6.5k views
Hello, I'm trying to deploy my first Rails app but keep getting a `504 Gateway Time-out nginx` error all the time. I followed this tutorial meticulously: https://www.digitalocean.com/community/articles/how-to-launch-your-ruby-on-rails-app-with-the-digitalocean-one-click-image I already spent hours reading other (similar) tutorials as well as my various error logs. Unfortunately, I can't get any information out of those logs, so I don't know what I am missing. This would be one line from my NGINX error log (the other lines all look virtually the same): `2014/05/21 10:04:12 [error] 731#0: *216 upstream timed out (110: Connection timed out) while reading response header from upstream, client:, server: _, request: "GET / HTTP/1.1", upstream: "", host: "mydomain.com"` Can anybody tell me what I am doing wrong here? Thanks for any help.
5 Answers
Is there anything in /home/unicorn/log/unicorn.log ?

I'd also try restarting the unicorn service if you haven't done so after deploying new code:

service unicorn restart
No, interestingly, when I try to open that file from within the `log` directory using `nano unicorn.log`, I get a blank screen in my terminal on Mac OS X for a few seconds. It then says `Killed` in my terminal. What could this mean?
And how the heck can I format code in my posts here? :-)

Same problem here =(

I already tried everything I saw on the comunity

"bundle update" worked for me!

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