为什么我的rails服务器记录了两次？

我的rails服务器似乎记录了两次，不知道这里发生了什么，我应该怎么做才能调查这个？

我的gem文件

source 'https://rubygems.org' ruby '2.1.0' gem 'rails', '4.0.1' gem 'haml-rails' gem 'pg', '~> 0.17.1' gem 'redis' gem 'redis-namespace' gem 'thin', '~> 1.6.1' gem 'rabl' gem 'underscore-rails' #assets gem 'sass-rails', '~> 4.0.0' gem 'uglifier', '>= 1.3.0' gem 'foundation-rails' gem 'font-awesome-rails' #javascript gem 'coffee-rails', '~> 4.0.0' gem 'jquery-rails' gem 'jbuilder', '~> 1.2' gem 'angularjs-rails', '~> 1.2.7' gem 'ngmin-rails', '~> 0.4.0' #user auth gem 'devise', '3.0.0' gem 'omniauth' gem 'omniauth-twitter' gem 'uuidtools' #misc tools gem 'twitter' #heroku gem 'rails_12factor' group :development, :test do gem 'capybara-webkit', github: 'thoughtbot/capybara-webkit', branch: 'master' gem 'rspec-rails', '~> 2.14.1' gem 'factory_girl_rails', '4.2.1' gem 'mocha', '~> 1.0.0' gem 'pry' gem 'pry-debugger' gem 'quiet_assets' gem 'parallel_tests' gem 'zeus-parallel_tests' gem 'guard-rspec' gem 'rb-fsevent' end group :development do gem 'guard-livereload' gem 'rack-livereload' gem 'better_errors' gem 'terminal-notifier-guard' end group :test do gem 'launchy', '>= 2.1.2' gem 'capybara', '>= 1.1.3' gem 'database_cleaner', '~> 1.2.0' gem 'zeus', :require => false gem 'shoulda-matchers' gem 'pdf-inspector' gem 'selenium-webdriver' gem "mock_redis", "~> 0.11.0" end 

Answer 1

在我的情况下，这是由rails_12factor gem引起的。 这个gem添加了rails_stdout_logging gem，它将日志发送到标准输出。 这在Rails已经默认执行的情况下在生产环境中非常有用，但在开发时却没有用。

https://github.com/heroku/rails_12factor#rails-4-logging

解决方案是仅在生产中添加此gem：

 gem 'rails_12factor', group: :production 

Answer 2

看看这个问题

尝试将以下代码添加到config / application.rb

  if Rails.env.development? # Don't log to STDOUT, by default rails s will handle it config.logger = Logger.new('/dev/null') else # Don't log to file, sending everything to unicorn file. config.logger = Logger.new(STDOUT) end 

Answer 3

您是否在config / application.rb或config / environments / development.rb中将记录器设置为任何内容？

如果没有，请尝试将此行添加到config / environments / development.rb：

config.logger = Logger.new('/dev/null')

Answer 4

我在development.rb取得了成功development.rb ：

 config.logger = ActiveSupport::Logger.new('/dev/null')