Rails 3，Bundler和RVM在生产中找不到新的宝石

Question

I recently set up a production server for a Rails 3 app.

On the initial deploy everything worked fine. On a subsequent deploy, new gems that were added to the project are not being found. I am getting uninitialized constant and undefined method errors when I reference classes and methods from the newly added gems, respectively.

When I originally set things up I was using a gemset with RVM, but have tried to simplify things by removing the gemset and only using RVM to manage rubies.

When I run bundle list every thing is there. All of the gem are in <app_root>/shared/bundle/ruby/1.9.1/gems/

It seems like maybe it's loading the gems from some other location, like the original gemset, but I have deleted it.

Some other details, I am using Capistrano, of course, Unicorn, my GEM_HOME=/home/deployer/.rvm/gems/ruby-1.9.3-p286

Let me know if there is any other info I can provide.

Thanks.

Answer 1

if you use bundle install --deployment then you also have to prefix commands with bundle exec when you execute the command, like:

bundle exec rake db:migrate

If you use bundler/capistrano integration then it does it for you in capistano but in console you need to use bundle exec manually.

RVM was helping you to avoid it with rubygems-bundler gem - but you changed gemset so the generated wrappers are no more available. You would have to clean <app_root>/shared/bundle/ruby/1.9.1/gems/ and run bundle install again to regenerate the wrappers to avoid typing bundle exec again.

Answer 2

I have similar problems. It turns out Capistrano isn't properly restarting unicorn. SSHing into the server and stopping then starting unicorn did the job. Now to find a fix for Capistrano's shenanigans...