Can't connect to redis on heroku

12
votes

I'm using sidekiq with active_job in my rails application. The job currently works but I am unable to get connect to the Redis when deploying to heroku. In heroku I have the RedisToGo addon. When pushing to heroku I get the following error.

error

/app/vendor/bundle/ruby/2.2.0/gems/redis-3.2.1/lib/redis/client.rb:331:in `rescue in establish_connection': Error connecting to Redis on 127.0.0.1:6379 (Errno::ECONNREFUSED) (Redis::CannotConnectError)

config/application.rb

config.after_initialize do
  PasswordAgingJob.perform_later
  SetOffCallJob.perform_later
end

config/initializers/redis.rb

uri = URI.parse(ENV["REDISTOGO_URL"] || "redis://localhost:6379/" )
REDIS = Redis.new(:host => uri.host, :port => uri.port, :password => uri.password)

config/initializers/active_job.rb

ActiveJob::Base.queue_adapter = :sidekiq
4
ruby-on-railsrubyherokuredissidekiq

4 Answers

23
votes

Set REDIS_PROVIDER to the name of the env var with your Redis URL.

Type this: heroku config:set REDIS_PROVIDER=REDISTOGO_URL. Restart.

Explained here: https://github.com/mperham/sidekiq/wiki/Using-Redis#using-an-env-variable

3
votes

Setting REDIS_URL in heroku config help me to resolve:

Error connecting to Redis on 127.0.0.1:6379 (Errno::ECONNREFUSED) (Redis::CannotConnectError)
2
votes

You must set the REDISTOGO_URL on Heroku.

Click on Settings, and then Reveal Config Vars.

0
votes

Setting REDIS_URL to redis://@pike.redistogo.com:10731/ seem to work for me.