I have a Rails app which uses Redis for background jobs. On Heroku I use the Heroku Redis add-on. When I deploy to Heroku, it gives me this error:
Redis::CannotConnectError: Error connecting to Redis on 127.0.0.1:6379 It seems it tries to connect to localhost. I have both a REDIS_URL and REDIS_PROVIDER environment variable on Heroku. And this is how my redis.rb looks like:
if Rails.env.production? uri = URI.parse(ENV["REDIS_URL"]) else uri = URI.parse("redis://localhost:6379") end Resque.redis = Redis.new(:host => uri.host, :port => uri.port, :password => uri.password) And this is my Procfile:
web: bundle exec unicorn -p $PORT -c ./config/unicorn.rb worker: env TERM_CHILD=1 bundle exec rake environment resque:work QUEUE=* COUNT=1 Any ideas why it is not working? Even if I change redis.rb so it only has the REDIS_URL as url, it gives the same error.
Update: added error trace:
remote: Redis::CannotConnectError: Error connecting to Redis on 127.0.0.1:6379 (Errno::ECONNREFUSED) remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/client.rb:345:in `rescue in establish_connection' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/client.rb:331:in `establish_connection' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/client.rb:101:in `block in connect' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/client.rb:293:in `with_reconnect' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/client.rb:100:in `connect' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/client.rb:364:in `ensure_connected' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/client.rb:221:in `block in process' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/client.rb:306:in `logging' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/client.rb:220:in `process' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/client.rb:120:in `call' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis.rb:351:in `block in time' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis.rb:58:in `block in synchronize' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis.rb:58:in `synchronize' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis.rb:350:in `time' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-namespace-1.5.3/lib/redis/namespace.rb:435:in `call_with_namespace' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-namespace-1.5.3/lib/redis/namespace.rb:321:in `method_missing' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/resque-1.27.2/lib/resque/data_store.rb:100:in `redis_time_available?' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/resque-1.27.2/lib/resque/data_store.rb:15:in `initialize' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/resque-1.27.2/lib/resque.rb:125:in `new' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/resque-1.27.2/lib/resque.rb:125:in `redis=' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/resque-web-0.0.9/config/initializers/resque_config.rb:4:in `<top (required)>' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:287:in `load' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:287:in `block in load' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:259:in `load_dependency' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:287:in `load' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/engine.rb:648:in `block in load_config_initializer' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/activesupport-5.0.1/lib/active_support/notifications.rb:166:in `instrument' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/engine.rb:647:in `load_config_initializer' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/engine.rb:612:in `block (2 levels) in <class:Engine>' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/engine.rb:611:in `each' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/engine.rb:611:in `block in <class:Engine>' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/initializable.rb:30:in `instance_exec' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/initializable.rb:30:in `run' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/initializable.rb:55:in `block in run_initializers' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/initializable.rb:44:in `each' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/initializable.rb:44:in `tsort_each_child' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/initializable.rb:54:in `run_initializers' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/application.rb:352:in `initialize!' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/config/environment.rb:5:in `<top (required)>' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:293:in `require' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:293:in `block in require' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:259:in `load_dependency' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:293:in `require' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/application.rb:328:in `require_environment!' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/application.rb:448:in `block in run_tasks_blocks' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/sprockets-rails-3.2.0/lib/sprockets/rails/task.rb:62:in `block (2 levels) in define' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/rake-12.0.0/exe/rake:27:in `<top (required)>' remote: Errno::ECONNREFUSED: Connection refused - connect(2) for 127.0.0.1:6379 remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/connection/ruby.rb:206:in `rescue in connect_addrinfo' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/connection/ruby.rb:198:in `connect_addrinfo' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/connection/ruby.rb:239:in `block in connect' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/connection/ruby.rb:237:in `each' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/connection/ruby.rb:237:in `each_with_index' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/connection/ruby.rb:237:in `connect' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/connection/ruby.rb:313:in `connect' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/client.rb:336:in `establish_connection' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/client.rb:101:in `block in connect' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/client.rb:293:in `with_reconnect' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/client.rb:100:in `connect' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/client.rb:364:in `ensure_connected' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/client.rb:221:in `block in process' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/client.rb:306:in `logging' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/client.rb:220:in `process' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/client.rb:120:in `call' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis.rb:351:in `block in time' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis.rb:58:in `block in synchronize' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis.rb:58:in `synchronize' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis.rb:350:in `time' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-namespace-1.5.3/lib/redis/namespace.rb:435:in `call_with_namespace' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-namespace-1.5.3/lib/redis/namespace.rb:321:in `method_missing' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/resque-1.27.2/lib/resque/data_store.rb:100:in `redis_time_available?' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/resque-1.27.2/lib/resque/data_store.rb:15:in `initialize' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/resque-1.27.2/lib/resque.rb:125:in `new' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/resque-1.27.2/lib/resque.rb:125:in `redis=' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/resque-web-0.0.9/config/initializers/resque_config.rb:4:in `<top (required)>' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:287:in `load' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:287:in `block in load' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:259:in `load_dependency' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:287:in `load' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/engine.rb:648:in `block in load_config_initializer' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/activesupport-5.0.1/lib/active_support/notifications.rb:166:in `instrument' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/engine.rb:647:in `load_config_initializer' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/engine.rb:612:in `block (2 levels) in <class:Engine>' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/engine.rb:611:in `each' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/engine.rb:611:in `block in <class:Engine>' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/initializable.rb:30:in `instance_exec' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/initializable.rb:30:in `run' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/initializable.rb:55:in `block in run_initializers' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/initializable.rb:44:in `each' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/initializable.rb:44:in `tsort_each_child' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/initializable.rb:54:in `run_initializers' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/application.rb:352:in `initialize!' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/config/environment.rb:5:in `<top (required)>' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:293:in `require' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:293:in `block in require' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:259:in `load_dependency' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:293:in `require' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/application.rb:328:in `require_environment!' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/application.rb:448:in `block in run_tasks_blocks' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/sprockets-rails-3.2.0/lib/sprockets/rails/task.rb:62:in `block (2 levels) in define' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/rake-12.0.0/exe/rake:27:in `<top (required)>' remote: IO::EINPROGRESSWaitWritable: Operation now in progress - connect(2) would block remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/connection/ruby.rb:199:in `connect_addrinfo' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/connection/ruby.rb:239:in `block in connect' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/connection/ruby.rb:237:in `each' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/connection/ruby.rb:237:in `each_with_index' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/connection/ruby.rb:237:in `connect' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/connection/ruby.rb:313:in `connect' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/client.rb:336:in `establish_connection' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/client.rb:101:in `block in connect' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/client.rb:293:in `with_reconnect' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/client.rb:100:in `connect' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/client.rb:364:in `ensure_connected' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/client.rb:221:in `block in process' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/client.rb:306:in `logging' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/client.rb:220:in `process' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis/client.rb:120:in `call' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis.rb:351:in `block in time' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis.rb:58:in `block in synchronize' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis.rb:58:in `synchronize' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-3.3.3/lib/redis.rb:350:in `time' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-namespace-1.5.3/lib/redis/namespace.rb:435:in `call_with_namespace' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/redis-namespace-1.5.3/lib/redis/namespace.rb:321:in `method_missing' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/resque-1.27.2/lib/resque/data_store.rb:100:in `redis_time_available?' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/resque-1.27.2/lib/resque/data_store.rb:15:in `initialize' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/resque-1.27.2/lib/resque.rb:125:in `new' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/resque-1.27.2/lib/resque.rb:125:in `redis=' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/resque-web-0.0.9/config/initializers/resque_config.rb:4:in `<top (required)>' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:287:in `load' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:287:in `block in load' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:259:in `load_dependency' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:287:in `load' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/engine.rb:648:in `block in load_config_initializer' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/activesupport-5.0.1/lib/active_support/notifications.rb:166:in `instrument' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/engine.rb:647:in `load_config_initializer' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/engine.rb:612:in `block (2 levels) in <class:Engine>' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/engine.rb:611:in `each' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/engine.rb:611:in `block in <class:Engine>' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/initializable.rb:30:in `instance_exec' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/initializable.rb:30:in `run' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/initializable.rb:55:in `block in run_initializers' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/initializable.rb:44:in `each' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/initializable.rb:44:in `tsort_each_child' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/initializable.rb:54:in `run_initializers' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/application.rb:352:in `initialize!' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/config/environment.rb:5:in `<top (required)>' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:293:in `require' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:293:in `block in require' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:259:in `load_dependency' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:293:in `require' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/application.rb:328:in `require_environment!' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/railties-5.0.1/lib/rails/application.rb:448:in `block in run_tasks_blocks' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/sprockets-rails-3.2.0/lib/sprockets/rails/task.rb:62:in `block (2 levels) in define' remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/rake-12.0.0/exe/rake:27:in `<top (required)>' remote: Tasks: TOP => environment remote: (See full trace by running task with --trace) remote: ! remote: ! Precompiling assets failed. remote: ! Attempted to access a nonexistent database: remote: ! https://devcenter.heroku.com/articles/pre-provision-database remote: ! remote: ! Push rejected, failed to compile Ruby app. remote: remote: ! Push failed remote: Verifying deploy.... remote: remote: ! Push rejected to backbone-app-staging. remote: To git@heroku.com:backbone-app-staging.git ! [remote rejected] rails5 -> master (pre-receive hook declined) error: failed to push some refs to 'git@heroku.com:backbone-app-staging.git' 4 Answers
Answers 1
I can think of two possibilities:
Is something setting
ENV['REDIS_URL']before the initializer runs? For instance maybe you have a.envfile checked into git that is overriding the Heroku variable?You say this code is from
redis.rb. Do you have aconfig/initializers/resque.rbalso? What aboutconfig/resque.yml? Either of those may be also trying to open a Redis connection. (If you could post the entire stack trace of your error, you could confirm this or rule it out.) Or are you using Redis for anything other than Resque?
You could also do some printf debugging and change your initializer to say:
if Rails.env.production? puts "production: #{ENV['REDIS_URL']}" uri = URI.parse(ENV["REDIS_URL"]) else puts "not production" uri = URI.parse("redis://localhost:6379") end That should help you clarify what's going on. (You may need to use Rails.logger.info instead of puts.)
EDIT: That stack trace is very helpful! Sure enough, your own initializer isn't in there at all, but there is other code trying to load its own redis connection, here:
remote: /tmp/build_329306a238b046dda86a54d29db48f4c/vendor/bundle/ruby/2.4.0/gems/resque-web-0.0.9/config/initializers/resque_config.rb:4:in `<top (required)>' If you look up that gem, you can see it is doing this:
require 'resque' config = ENV.fetch("RAILS_RESQUE_REDIS", "127.0.0.1:6379") Resque.redis = config So I think the answer is to set RAILS_RESQUE_REDIS in addition to REDIS_URL. You can use the Heroku config:set command to do that.
Answers 2
You forgot to pass the USERNAME to the connector, and your REDIS_URL can have been changed by the service provider...
I recommend use
$redis = if Rails.env.production? ? Redis.new(ENV["REDIS_URL"]) : Redis.new("redis://localhost:6379") It would be even better use the env variable your service provider set, like ENV['REDISCLOUD_URL'], because if they change the url for any motive, like when you update a plan or they need to change their infra... they could just set their variable and it would be transparent for you, without any interruption of service.
If you maintain yourself the REDIS_URL, and they change their url, your app will lost access to until you figure out the URL should change and set the update the REDIS_URL again
OBS
If the problem is when setting up the worker... the problem can be even that it is not starting with the correct environment, at least if you run it on Rails 5, you should config your resque Rakefile to
#If you're using Rails 5.x, include the following in lib/tasks/resque.rb: require 'resque/tasks' task 'resque:setup' => :environment Answers 3
Try setting the REDIS_URL var in the ~/.bash_profile of the user that the application runs under.
export REDIS_URL="redis://prod-redis-url:6379" This should ensure that it is set before your app starts up.
Answers 4
Inside of your config/initializes/set_redis_url.rb
ENV['REDIS_URL'] = ENV["REDISCLOUD_URL"] if ENV["REDISCLOUD_URL"] In my past i have used action cable to work with redis and my app wouldn't work without these lines in config/environments/production.rb
config.action_cable.allowed_request_origins = ['https://your-app.herokuapp.com', 'http://your-app.herokuapp.com'] config.action_cable.url = "wss://sitepoint-custom-messaging.herokuapp.com/cable" 
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