Mongo::Error::NoServerAvailable in Rails 5 app development environment

Question

我正在尝试通过 rails console 连接到现有的 mLab 数据库。每次我查询（例如 GameScore.all.count、User.all.count）时，都会返回以下错误消息：

Mongo::Error::NoServerAvailable: No server is available matching    preference: #<Mongo::ServerSelector::Primary:0x70240308536180 tag_sets=[] max_staleness=nil> using server_selection_timeout=30 and local_threshold=0.015 from /Users/-/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/mongo-2.4.1/lib/mongo/server_selector/selectable.rb:115:in `select_server'

我的 mongoid.yml 文件是这样设置的：

development:
  clients:
    default:
      uri: 'mongodb://username:password@host:port/db_name'
      options:
        consistency: :strong
        max_retries: 30
        retry_interval: 1
        timeout: 15

非常感谢任何帮助。现在真的被这个难住了。

Answer 1

已解决。不得不降级到 Rails 4.2.7 和 mongoid 4。工作起来非常棒。

Mongo::Error::NoServerAvailable in Rails 5 app development environment

Mongo::Error::NoServerAvailable in Rails 5 app development environment

ruby-on-rails

mongodb

mongoid

mlab