Failing to connect to redis after fresh install

Installation
1

Hi there.

I am creating a fresh install of Discourse on AWS EC2 with Ubuntu 16.04LTS. Unfortunately i am running into this issue:

`Error connecting to Redis on localhost:6379 (Errno::ECONNREFUSED) subscribe failed, reconnecting in 1 second. Call stack ["/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/redis-4.0.1/lib/redis/client.rb:344:in `rescue in establish_connection'", "/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/redis-4.0.1/lib/redis/client.rb:328:in `establish_connection'", "/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/redis-4.0.1/lib/redis/client.rb:99:in `block in connect'", "/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/redis-4.0.1/lib/redis/client.rb:291:in `with_reconnect'", "/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/redis-4.0.1/lib/redis/client.rb:98:in `connect'", "/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/redis-4.0.1/lib/redis/client.rb:363:in `ensure_connected'", "/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/redis-4.0.1/lib/redis/client.rb:219:in `block in process'", "/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/redis-4.0.1/lib/redis/client.rb:304:in `logging'", "/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/redis-4.0.1/lib/redis/client.rb:218:in `process'", "/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/redis-4.0.1/lib/redis/client.rb:118:in `call'", "/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/redis-4.0.1/lib/redis.rb:889:in `block in get'", "/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/redis-4.0.1/lib/redis.rb:45:in `block in synchronize'", "/usr/local/lib/ruby/2.5.0/monitor.rb:226:in `mon_synchronize'", "/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/redis-4.0.1/lib/redis.rb:45:in `synchronize'", "/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/redis-4.0.1/lib/redis.rb:888:in `get'", "/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/message_bus-2.2.0.pre.1/lib/message_bus/backends/redis.rb:360:in `process_global_backlog'", "/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/message_bus-2.2.0.pre.1/lib/message_bus/backends/redis.rb:271:in `block in global_subscribe'", "/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/message_bus-2.2.0.pre.1/lib/message_bus/backends/redis.rb:284:in `global_subscribe'", "/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/message_bus-2.2.0.pre.1/lib/message_bus.rb:721:in `global_subscribe_thread'", "/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/message_bus-2.2.0.pre.1/lib/message_bus.rb:669:in `block in new_subscriber_thread'"]`

Been searching on this topic but do not seem to see any resolution. I tired to reinstall everything but the error is persisting.

Also i have re-checked my mail settings.

2

I can verify that same problem occurs on Ubuntu 18.04 LTS

3

Is this a standard install created with discourse-setup?

4

Yes, I followed this INSTALL guide:

https://github.com/discourse/discourse/blob/master/docs/INSTALL-cloud.md

5

I just did a clean install on 16.04.5 without any problems.

Do you have at least 1GB of ram? (Oh, I guess so, or discourse-setup would have complained).

Does ./discourse-doctor provide any clues?