Sidekiq - could not obtain a database connection within 5.000 seconds

Question

I get the following warning with Rails 4 and Sidekiq on os x on development

10:13:39 worker.1 | 2014-09-22T07:13:39.857Z 86981 TID-oug0oog10 WARN: could not          


        

Answer 1

The probem is related to the fact that database pool should be 'sidekiq_concurrency' + 2. If you put this into your sidekiq initializer you will solve the problem in general:

Sidekiq.configure_server do |config|
     config = ActiveRecord::Base.configurations[Rails.env] ||
         Rails.application.config.database_configuration[Rails.env]
     config['pool'] = Sidekiq.options[:concurrency] + 2
     ActiveRecord::Base.establish_connection(config)
     Rails.logger.debug("Connection Pool size for Sidekiq Server is now: #{ActiveRecord::Base.connection.pool.instance_variable_get('@size')}")
end