Starter Sidekiq Configuration

sidekiq.rb

# config/initializers/sidekiq.rb

require 'sidekiq'

Sidekiq.configure_client do |config|
  config.redis = {
    :url => ENV['SIDEKIQ_REDIS_URI'],
    :namespace => ENV['SIDEKIQ_NAMESPACE'],
    :size => ENV['SIDEKIQ_CLIENT_SIZE'] || 5
  }
end

Sidekiq.configure_server do |config|
  config.redis = {
    :url => ENV['SIDEKIQ_REDIS_URI'],
    :namespace => ENV['SIDEKIQ_NAMESPACE']
  }
  
  Rails.application.config.after_initialize do
    ActiveRecord::Base.connection_pool.disconnect!
    ActiveSupport.on_load(:active_record) do
      if Rails.application.config.database_configuration
        config = Rails.application.config.database_configuration[Rails.env]
        config['checkout_timeout'] = ENV['DB_CHECKOUT_TIMEOUT'] || 30
        config['reaping_frequency'] = ENV['DB_REAP_FREQ'] || 10 # seconds
        config['pool'] = ENV['DB_POOL'] || 5
        ActiveRecord::Base.establish_connection(config)
      end
    end
  end
end

sidekiq.yml

# config/sidekiq.yml

:concurrency: 33
:queues:
  - immediate
  - often
  - default
  - seldom
  - low