Mongoid 复制配置导致 ArgumentError答案

【问题标题】：Mongoid Replication Config causing ArgumentErrorMongoid 复制配置导致 ArgumentError
【发布时间】：2012-05-17 13:03:23
【问题描述】：

我将复制添加到我的 mongoid 生产部分，如下所示：

production:
  hosts:
    - - <%= ENV['MONGO_URL1'] %>:<%= ENV['MONGO_PORT'] %>
    - - <%= ENV['MONGO_URL2'] %>:<%= ENV['MONGO_PORT'] %>
  read: :secondary
  username: <%= ENV['MONGO_USERNAME'] %>
  password: <%= ENV['MONGO_PASSWORD'] %>
  database: <%= ENV['MONGO_DATABASE'] %>
  max_retries_on_connection_failure: 10

这在 Heroku 的生产环境中有效，但在本地，它会导致我的服务器在开始出现错误时失败：

ROOT /Users/bashar/rails-projects/my-project /Users/bashar/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/syck.rb:135:in load': syntax error on line 13, col 9: - - :' (ArgumentError) 从 /Users/bashar/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/syck.rb:135:in load' from /Users/bashar/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/gems/1.9.1/gems/mongoid-2.4.7/lib/mongoid/railtie.rb:83:inblock in '来自 /Users/bashar/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/gems/1.9.1/gems/railties-3.1.3/lib/rails/initializable.rb:30:in instance_exec' from /Users/bashar/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/gems/1.9.1/gems/railties-3.1.3/lib/rails/initializable.rb:30:inrun' 来自 /Users/bashar/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/gems/1.9.1/gems/railties-3.1.3/lib/rails/initializable.rb:55:in block in run_initializers' from /Users/bashar/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/gems/1.9.1/gems/railties-3.1.3/lib/rails/initializable.rb:54:ineach' 来自 /Users/bashar/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/gems/1.9.1/gems/railties-3.1.3/lib/rails/initializable.rb:54:in run_initializers' from /Users/bashar/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/gems/1.9.1/gems/railties-3.1.3/lib/rails/application.rb:96:ininitialize！从 /Users/bashar/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/gems/1.9.1/gems/railties-3.1.3/lib/rails/railtie/configurable.rb:30:in method_missing' from /Users/bashar/rails-projects/my-project/config/environment.rb:5:in' 来自 /Users/bashar/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/gems/1.9.1/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:240:in require' from /Users/bashar/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/gems/1.9.1/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:240:in阻止来自 /Users/bashar/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/gems/1.9.1/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:223:in block in load_dependency' from /Users/bashar/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/gems/1.9.1/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:640:in new_constants_in' 来自 /Users/bashar/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/gems/1.9.1/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:223:in load_dependency' from /Users/bashar/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/gems/1.9.1/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:240:in要求'来自 /Users/bashar/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/gems/1.9.1/gems/railties-3.1.3/lib/rails/application.rb:83:in require_environment!' from /Users/bashar/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/gems/1.9.1/gems/railties-3.1.3/lib/rails/commands.rb:39:in' 来自 script/rails:6:in require' from script/rails:6:in'  ~/rails-projects/my-project/ [master]

我正在使用导轨 3.1.3 蒙戈 1.6.2 Mongoid 2.4.9 MongoDB 2.0.2版

有什么想法吗？

【问题讨论】：

标签： ruby-on-rails ruby-on-rails-3 mongoid

【解决方案1】：

您的配置文件应如下所示：

production:
  hosts:
    - <%= ENV['MONGO_URL1'] %>:<%= ENV['MONGO_PORT'] %>
    - <%= ENV['MONGO_URL2'] %>:<%= ENV['MONGO_PORT'] %>
  read: :secondary
  username: <%= ENV['MONGO_USERNAME'] %>
  password: <%= ENV['MONGO_PASSWORD'] %>
  database: <%= ENV['MONGO_DATABASE'] %>
  max_retries_on_connection_failure: 10

它会被解决为：

hosts: [ 'host1:port1', 'host2:port2']

将主机和端口作为两个不同的东西时，您需要双数组：

hosts: [ ['host1', 'port1'], ['host2', 'port2'] ]

【讨论】：

感谢您的解释。由于某种原因，一个破折号不起作用，但我按照您直接建议的方式形成了数组，并且有效。我猜我的一个 gem 中存在一些版本支持问题
好吧，这很奇怪。它在本地工作，但现在在生产中失败了。对面：/
@BasharAbdullah 您的本地开发环境是否可能与生产环境没有相同的技术堆栈（gem 版本、rails、mongodb 等），这可能会导致问题。我将首先查看差异并尝试从那里隔离问题。
很有可能。谢谢。这样做