[help] ActiveRecord :: ConnectionNotFounded

Question

我的軌道環境是

滑軌：3.2.14，

紅寶石：1.9.3，

系統：ubuntu

的mysql：5.5.32-0ubuntu0.12.04.1

我創建了一個mysql數據庫，並測試了數據庫，我從Windows.mysql中的mysql工作台連接了它，所以我想表明，我在ubuntu中的mysql數據庫運行正常

但是，當我在瀏覽器中運行網站時，出現錯誤：activerecord :: connectionnot建立。

完整的跟蹤是：

activerecord (3.2.14) lib/active_record/connection_adapters/abstract/connection_pool.rb:410:in retrieve_connection' activerecord (3.2.14) lib/active_record/connection_adapters/abstract/connection_specification.rb:171:in retrieve_connection' activerecord (3.2.14) lib/active_record/connection_adapters/abstract/connection_specification.rb:145:in connection' activerecord (3.2.14) lib/active_record/query_cache.rb:67:in rescue in call' activerecord (3.2.14) lib/active_record/query_cache.rb:61:in call' activerecord (3.2.14) lib/active_record/connection_adapters/abstract/connection_pool.rb:479:in call' actionpack (3.2.14) lib/action_dispatch/middleware/callbacks.rb:28:in block in call' activesupport (3.2.14) lib/active_support/callbacks.rb:405:in run _72338529_ call _445636797__callbacks' activesupport (3.2.14) lib/active_support/callbacks.rb:405:in __run_callback' activesupport (3.2.14) lib/active_support/callbacks.rb:385:in _run_call_callbacks' activesupport (3.2.14) lib/active_support/callbacks.rb:81:in run_callbacks' actionpack (3.2.14) lib/action_dispatch/middleware/callbacks.rb:27:in call' actionpack (3.2.14) lib/action_dispatch/middleware/reloader.rb:65:in call' actionpack (3.2.14) lib/action_dispatch/middleware/remote_ip.rb:31:in call' actionpack (3.2.14) lib/action_dispatch/middleware/debug_exceptions.rb:16:in call' actionpack (3.2.14) lib/action_dispatch/middleware/show_exceptions.rb:56:in call' railties (3.2.14) lib/rails/rack/logger.rb:32:in call_app' railties (3.2.14) lib/rails/rack/logger.rb:16:in block in call' activesupport (3.2.14) lib/active_support/tagged_logging.rb:22:in tagged' railties (3.2.14) lib/rails/rack/logger.rb:16:in call' actionpack (3.2.14) lib/action_dispatch/middleware/request_id.rb:22:in call' rack (1.4.5) lib/rack/methodoverride.rb:21:in call' rack (1.4.5) lib/rack/runtime.rb:17:in call' activesupport (3.2.14) lib/active_support/cache/strategy/local_cache.rb:72:in call' rack (1.4.5) lib/rack/lock.rb:15:in call' actionpack (3.2.14) lib/action_dispatch/middleware/static.rb:63:in call' railties (3.2.14) lib/rails/engine.rb:484:in call' railties (3.2.14) lib/rails/application.rb:231:in call' rack (1.4.5) lib/rack/content_length.rb:14:in call' railties (3.2.14) lib/rails/rack/log_tailer.rb:17:in call' rack (1.4.5) lib/rack/handler/webrick.rb:59:in service' /home/hxh/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/webrick/httpserver.rb:138:in service' /home/hxh/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/webrick/httpserver.rb:94:in run' /home/hxh/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/webrick/server.rb:191:in block in start_thread'

我的database.yml是：

development:
  adapter: mysql2
  encoding: utf8
  reconnect: false
  database: r4rmusic_development
  pool: 5
  username: root
  password:123 
  host:127.0.0.1
  socket: /var/run/mysqld/mysqld.sock

我的Gemfile是：

source 'https://rubygems.org'
gem 'rails', '3.2.14'
gem 'mysql2'

group :assets do
  gem 'sass-rails',   '~> 3.2.3'
  gem 'coffee-rails', '~> 3.2.1' 

  gem 'uglifier', '>= 1.0.3'
end

gem 'jquery-rails'

請幫我

Answer 1

嘗試設置host: localhost並從database.yml刪除socket

Answer 2

僅從database.yml刪除套接字：/var/run/mysqld/mysqld.sock。 會的。