无法使用ruby MySQL gem连接到MySQL

我使用bundler安装了ruby-mysql-gem。但是Mysql.connect由于以下跟踪而崩溃

/home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/gems/ruby-mysql-2.9.10/lib/mysql/protocol.rb:167:in `initialize': No such file or directory - /tmp/\
mysql.sock (Errno::ENOENT)
        from /home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/gems/ruby-mysql-2.9.10/lib/mysql/protocol.rb:167:in `new'
        from /home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/gems/ruby-mysql-2.9.10/lib/mysql/protocol.rb:167:in `block in initialize'
        from /home/kris/.rvm/rubies/ruby-1.9.3-p194-perf/lib/ruby/1.9.1/timeout.rb:54:in `timeout'
        from /home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/gems/ruby-mysql-2.9.10/lib/mysql/protocol.rb:164:in `initialize'
        from /home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/gems/ruby-mysql-2.9.10/lib/mysql.rb:114:in `new'
        from /home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/gems/ruby-mysql-2.9.10/lib/mysql.rb:114:in `connect'
        from /home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/gems/ruby-mysql-2.9.10/lib/mysql.rb:49:in `new'
        from /home/kris/dev/dispatch/application.rb:38:in `<top (required)>'
        from config.ru:1:in `require'
        from config.ru:1:in `block in <main>'
        from /home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/gems/rack-1.3.6/lib/rack/builder.rb:51:in `instance_eval'
        from /home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/gems/rack-1.3.6/lib/rack/builder.rb:51:in `initialize'
        from config.ru:1:in `new'
        from config.ru:1:in `<main>'
        from /home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/gems/thin-1.4.1/lib/rack/adapter/loader.rb:33:in `eval'
        from /home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/gems/thin-1.4.1/lib/rack/adapter/loader.rb:33:in `load'
        from /home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/gems/thin-1.4.1/lib/thin/controllers/controller.rb:181:in `load_rackup_config'
        from /home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/gems/thin-1.4.1/lib/thin/controllers/controller.rb:71:in `start'
        from /home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/gems/thin-1.4.1/lib/thin/runner.rb:185:in `run_command'
        from /home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/gems/thin-1.4.1/lib/thin/runner.rb:151:in `run!'
        from /home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/gems/thin-1.4.1/bin/thin:6:in `<top (required)>'
        from /home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/bin/thin:23:in `load'
        from /home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/bin/thin:23:in `<main>'

/home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/gems/ruby-mysql-2.9.10/lib/mysql/protocol.rb:167:在'initialize'中：没有这样的文件或目录-/tmp/\
mysql.sock（Errno:：enoint）
from/home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/gems/ruby-mysql-2.9.10/lib/mysql/protocol.rb:167:in'new'
from/home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/gems/ruby-mysql-2.9.10/lib/mysql/protocol.rb:167:in`block in initialize'
from/home/kris/.rvm/rubies/ruby-1.9.3-p194-perf/lib/ruby/1.9.1/timeout.rb:54:in'timeout'
from/home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/gems/ruby-mysql-2.9.10/lib/mysql/protocol.rb:164:in'initialize'
from/home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/gems/ruby-mysql-2.9.10/lib/mysql.rb:114:in'new'
from/home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/gems/ruby-mysql-2.9.10/lib/mysql.rb:114:in'connect'
from/home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/gems/ruby-mysql-2.9.10/lib/mysql.rb:49:in'new'
from/home/kris/dev/dispatch/application.rb:38:in`'
from config.ru:1:in'require'
from config.ru:1:in'block in'
from/home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/gems/rack-1.3.6/lib/rack/builder.rb:51:in'instance_eval'
from/home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/gems/rack-1.3.6/lib/rack/builder.rb:51:in'initialize'
from config.ru:1:in'new'
from config.ru:1:in`'
from/home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/gems/thin-1.4.1/lib/rack/adapter/loader.rb:33:in'eval'
from/home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/gems/thin-1.4.1/lib/rack/adapter/loader.rb:33:in'load'
from/home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/gems/thin-1.4.1/lib/thin/controllers/controller.rb:181:in'load\u rackup\u config'
from/home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/gems/thin-1.4.1/lib/thin/controllers/controller.rb:71:in'start'
from/home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/gems/thin-1.4.1/lib/thin/runner.rb:185:in'run_命令'
from/home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/gems/thin-1.4.1/lib/thin/runner.rb:151:in'run！'
from/home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/gems/thin-1.4.1/bin/thin:6:in`'
from/home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/料仓/薄料仓：23:在“装载”中
from/home/kris/.rvm/gems/ruby-1.9.3-p194-perf@dispatch/箱/薄：23:in`'

我的机器运行的是Ubuntu 12.04，我已经安装了libmysqlclient dev。我如何解决这个问题

---

谢谢

我认为您应该在database.yml中更改套接字

试着把它从

/tmp/mysql.sock

到

/var/run/mysqld/mysqld.sock

尝试重新安装mysql gem--

sudo gem安装mysql