Can't connect to Redis from Sinatra - ruby

Question

I'm trying to hook up redis to a Sinatra app I'm building:
require 'rubygems'
require 'sinatra'
#require 'sinatra/synchrony'
require 'redis'
require 'mongo_mapper'
require './startup'
def stats_connect
uri = URI.parse('redis://redistogo:xxxxxxxxxxxxxxxxxx#barb.redistogo.com:1337/')
puts 'connecting to... ' + uri.to_s
redis = Redis.new(:host => uri.host, :port => uri.port, :password => uri.password)
puts "Statistics connected >> OK" if redis
return redis
end
stats = stats_connect
post('/') do
#...
end
If I run the following app with foreman, I get this error:
18:09:02 web.1 | started with pid 825
18:09:08 web.1 |
/Users/vladdypwnz/.rvm/gems/ruby-1.9.2-p180/gems/redis-3.0.1/lib/redis/connection/ruby.rb:113:in
`connect_nonblock': Can't assign requested address - connect(2)
(Errno::EADDRNOTAVAIL)
18:09:08 web.1 | from
/Users/vladdypwnz/.rvm/gems/ruby-1.9.2-p180/gems/redis-3.0.1/lib/redis/connection/ruby.rb:113:in
`connect'
When I push to heroku, the error changes to this:
/app/vendor/bundle/ruby/1.9.1/gems/redis-3.0.1/lib/redis/client.rb:260:in `rescue in establish_connection': Timed out connecting to Redis on barb.redistogo.com:0 (Redis::CannotConnectError)
If I pop into IRB, require redis and use the same exact stats_connect() method that I created, redis works just fine, I can access everything and create keys.
What's going on? I'm completely stumped.

Answer 1

Are you sure your redis is running on barb.redistogo.com:1337?
A couple weeks ago I deployed an app using redis to heroku and used this configuration:
uri = URI.parse(ENV["REDISTOGO_URL"])
redis = Redis.new(:host => uri.host, :port => uri.port, :password => uri.password)
to run it locally I did:
redis = Redis.new(:host => "localhost", :port => 6379)