配置Puma和Sidekiq

Question

可能更多的是试图克服学习曲线和实际代码问题。我很抱歉，如果这似乎是努比什，目前我在生产中得到这个错误。

基本上，我一直收到这个“redis池太小了”，我迷失了从哪里开始，我实际上迷失了基本上理解如何准确地用美洲狮或配置后的任何东西，如缩放等。

下面是我收到的错误后的配置。

procfileweb:bundle exec puma-C config/puma.rb worker:bundle exec sidekiq-e production-C config/sidekiq.yml

Sidekiq初始化

if Rails.env.production?

  Sidekiq.configure_client do |config|
    config.redis = { url: ENV['REDIS_URL'], size: 2 }
  end

  Sidekiq.configure_server do |config|
    config.redis = { url: ENV['REDIS_URL'], size: 20 }

    Rails.application.config.after_initialize do
      Rails.logger.info("DB Connection Pool size for Sidekiq Server before disconnect is: #{ActiveRecord::Base.connection.pool.instance_variable_get('@size')}")
      ActiveRecord::Base.connection_pool.disconnect!

      ActiveSupport.on_load(:active_record) do
        config = Rails.application.config.database_configuration[Rails.env]
        config['reaping_frequency'] = ENV['DATABASE_REAP_FREQ'] || 10 # seconds
        # config['pool'] = ENV['WORKER_DB_POOL_SIZE'] || Sidekiq.options[:concurrency]
        config['pool'] = 16
        ActiveRecord::Base.establish_connection(config)

        Rails.logger.info("DB Connection Pool size for Sidekiq Server is now: #{ActiveRecord::Base.connection.pool.instance_variable_get('@size')}")
      end
    end
  end

end  

Redis初始化

   if ENV["REDISTOGO_URL"]
    $redis = Redis.new(:url => ENV["REDISTOGO_URL"])
    end

puma.rb

   workers Integer(ENV['WEB_CONCURRENCY'] || 2)  
    threads_count = Integer(ENV['MAX_THREADS'] || 1)  
    threads threads_count, threads_count

    preload_app!

    rackup      DefaultRackup  
    port        ENV['PORT']     || 3000  
    environment ENV['RACK_ENV'] || 'development'

    # Because we are using preload_app, an instance of our app is created by master process (calling our initializers) and then memory space
    # is forked. So we should close DB connection in the master process to avoid connection leaks.
    # https://github.com/puma/puma/issues/303
    # http://stackoverflow.com/questions/17903689/puma-cluster-configuration-on-heroku
    # http://www.rubydoc.info/gems/puma/2.14.0/Puma%2FDSL%3Abefore_fork
    # Dont have to worry about Sidekiq's connection to Redis because connections are only created when needed. As long as we are not
    # queuing workers when rails is booting, there will be no redis connections to disconnect, so it should be fine.
    before_fork do  
      puts "Puma master process about to fork. Closing existing Active record connections."
      ActiveRecord::Base.connection.disconnect!
    end

    on_worker_boot do  
      # Worker specific setup for Rails 4.1+
      # See: https://devcenter.heroku.com/articles/deploying-rails-applications-with-the-puma-web-server#on-worker-boot
      ActiveRecord::Base.establish_connection
    end 

日志中的错误

             Your Redis connection pool is too small for Sidekiq to work. Your pool has 20 connections but really needs to have at least 22
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/sidekiq-4.1.4/lib/sidekiq/redis_connection.rb:38:in `verify_sizing'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/sidekiq-4.1.4/lib/sidekiq/redis_connection.rb:17:in `create'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/sidekiq-4.1.4/lib/sidekiq.rb:128:in `redis='
10:04:44 worker.1 | /home/ubuntu/workspace/sample_v1/config/initializers/sidekiq.rb:10:in `block in <top (required)>'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/sidekiq-4.1.4/lib/sidekiq.rb:70:in `configure_server'
10:04:44 worker.1 | /home/ubuntu/workspace/sample_v1/config/initializers/sidekiq.rb:9:in `<top (required)>'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:268:in `load'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:268:in `block in load'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:240:in `load_dependency'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:268:in `load'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.6/lib/rails/engine.rb:652:in `block in load_config_initializer'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/activesupport-4.2.6/lib/active_support/notifications.rb:166:in `instrument'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.6/lib/rails/engine.rb:651:in `load_config_initializer'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.6/lib/rails/engine.rb:616:in `block (2 levels) in <class:Engine>'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.6/lib/rails/engine.rb:615:in `each'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.6/lib/rails/engine.rb:615:in `block in <class:Engine>'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:30:in `instance_exec'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:30:in `run'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:55:in `block in run_initializers'
10:04:44 worker.1 | /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:228:in `block in tsort_each'
10:04:44 worker.1 | /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:350:in `block (2 levels) in each_strongly_connected_component'
10:04:44 worker.1 | /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:422:in `block (2 levels) in each_strongly_connected_component_from'
10:04:44 worker.1 | /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:431:in `each_strongly_connected_component_from'
10:04:44 worker.1 | /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:421:in `block in each_strongly_connected_component_from'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:44:in `each'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:44:in `tsort_each_child'
10:04:44 worker.1 | /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:415:in `call'
10:04:44 worker.1 | /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:415:in `each_strongly_connected_component_from'
10:04:44 worker.1 | /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:349:in `block in each_strongly_connected_component'
10:04:44 worker.1 | /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:347:in `each'
10:04:44 worker.1 | /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:347:in `call'
10:04:44 worker.1 | /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:347:in `each_strongly_connected_component'
10:04:44 worker.1 | /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:226:in `tsort_each'
10:04:44 worker.1 | /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tsort.rb:205:in `tsort_each'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:54:in `run_initializers'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/railties-4.2.6/lib/rails/application.rb:352:in `initialize!'
10:04:44 worker.1 | /home/ubuntu/workspace/sample_v1/config/environment.rb:5:in `<top (required)>'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:274:in `require'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:274:in `block in require'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:240:in `load_dependency'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:274:in `require'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/sidekiq-4.1.4/lib/sidekiq/cli.rb:237:in `boot_system'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/sidekiq-4.1.4/lib/sidekiq/cli.rb:50:in `run'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/sidekiq-4.1.4/bin/sidekiq:12:in `<top (required)>'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/bin/sidekiq:23:in `load'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/bin/sidekiq:23:in `<top (required)>'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/bundler-1.12.3/lib/bundler/cli/exec.rb:63:in `load'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/bundler-1.12.3/lib/bundler/cli/exec.rb:63:in `kernel_load'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/bundler-1.12.3/lib/bundler/cli/exec.rb:24:in `run'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/bundler-1.12.3/lib/bundler/cli.rb:304:in `exec'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/bundler-1.12.3/lib/bundler/vendor/thor/lib/thor/command.rb:27:in `run'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/bundler-1.12.3/lib/bundler/vendor/thor/lib/thor/invocation.rb:126:in `invoke_command'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/bundler-1.12.3/lib/bundler/vendor/thor/lib/thor.rb:359:in `dispatch'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/bundler-1.12.3/lib/bundler/vendor/thor/lib/thor/base.rb:440:in `start'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/bundler-1.12.3/lib/bundler/cli.rb:11:in `start'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/bundler-1.12.3/exe/bundle:27:in `block in <top (required)>'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/bundler-1.12.3/lib/bundler/friendly_errors.rb:98:in `with_friendly_errors'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/gems/bundler-1.12.3/exe/bundle:19:in `<top (required)>'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/bin/bundle:23:in `load'
10:04:44 worker.1 | /usr/local/rvm/gems/ruby-2.3.0/bin/bundle:23:in `<main>'
10:04:45 worker.1 | exited with code 1
10:04:45 system   | sending SIGTERM to all processes

任何帮助或指导都将是惊人的。

Answer 1

删除configure_*块中的size：属性。让Sidekiq为你管理尺寸。