我整天都在做这件事，我需要一些帮助。

我正在尝试为我在 github 上处理的 RoR 项目设置 mysql 数据库。

当我尝试在终端中设置数据库时，出现以下错误:

Eric-MacBook:~ eric$ cd ~/review_rocket
Eric-MacBook:review_rocket eric$ rake db:setup
Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock'

我已经查看了 20 个关于 SO 的问题，但没有一个能够帮助我解决我的问题。

数据库已启动并运行，database.yml 也已设置。

我现在有点生气......请......帮助......在为时已晚之前。

更新:我刚刚查看了我安装的 gem，出于某种原因它显示了 mysql2(见下文)

Eric-Reas-MacBook:~ ericrea$ gem list

*** LOCAL GEMS ***

multi_json (1.8.2)
mysql2 (0.3.13)
net-sftp (2.1.2) 

这对我来说有点奇怪......

更新:这是我的 database.yml 的样子:

common: &common
  adapter: mysql2
  encoding: utf8
  reconnect: false
  pool: 5
  user_name: xxxx
  password: xxxx
  socket: /var/run/mysqld/mysqld.sock

development:
  <<: *common
  database: dev_review_rocket

# Warning: The database defined as "money_tracker_test" will be erased and
# re-generated from your development database when you run "rake".
# Do not set this db to the same as development or production.
test:
  <<: *common
  database: test_review_rocket

production:
  <<: *common
  database: prod_review_rocket

更新:现在尝试使用自制软件重新安装 mysql 时出现奇怪的错误(见下文):

$ brew install mysql
==> Downloading https://downloads.sf.net/project/machomebrew/Bottles/mysql-5.6.1
Already downloaded: /Library/Caches/Homebrew/mysql-5.6.13.mountain_lion.bottle.1.tar.gz
==> Pouring mysql-5.6.13.mountain_lion.bottle.1.tar.gz
==> /usr/local/Cellar/mysql/5.6.13/bin/mysql_install_db --verbose --user=ericrea
2013-10-22 18:32:41 56901 [Note] InnoDB: FTS optimize thread exiting.
2013-10-22 18:32:41 56901 [Note] InnoDB: Starting shutdown...
2013-10-22 18:32:42 56901 [Note] InnoDB: Shutdown completed; log sequence number 1626067
2013-10-22 18:32:42 56901 [Note] /usr/local/Cellar/mysql/5.6.13/bin/mysqld: Shutdown complete

Warning: mysql post_install failed. Rerun with `brew postinstall mysql`.
==> Caveats
A "/etc/my.cnf" from another install may interfere with a Homebrew-built
server starting up correctly.

To connect:
    mysql -uroot

To have launchd start mysql at login:
    ln -sfv /usr/local/opt/mysql/*.plist ~/Library/LaunchAgents
Then to load mysql now:
    launchctl load ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist
Or, if you don't want/need launchctl, you can just run:
    mysql.server start
==> Summary
?  /usr/local/Cellar/mysql/5.6.13: 9382 files, 354M
Eric-Reas-MacBook:~ ericrea$ brew postinstall mysql
==> /usr/local/Cellar/mysql/5.6.13/bin/mysql_install_db --verbose --user=ericrea
2013-10-22 18:33:22 57135 [Note] InnoDB: FTS optimize thread exiting.
2013-10-22 18:33:22 57135 [Note] InnoDB: Starting shutdown...
2013-10-22 18:33:23 57135 [Note] InnoDB: Shutdown completed; log sequence number 1626087
2013-10-22 18:33:23 57135 [Note] /usr/local/Cellar/mysql/5.6.13/bin/mysqld: Shutdown complete


READ THIS: https://github.com/mxcl/homebrew/wiki/troubleshooting

These open issues may also help:
    https://github.com/mxcl/homebrew/issues/22021
    https://github.com/mxcl/homebrew/pull/22480

最佳答案

我最终弄清楚了这一点。

我运行了以下命令:

$ mysqladmin variables | grep socket

返回的是:

| performance_schema_max_socket_classes                  | 12                                                                                                                                                                                                                                                                                                                                               |
| performance_schema_max_socket_instances                | 323                                                                                                                                                                                                                                                                                                                                              |
| socket                                                 | /tmp/mysql.sock

然后我检查了我的database.yml文件中的socket位置，是错误的:

错了。将其更改为正确的 socket 位置后，一切都非常顺利。我希望这对将来的人有所帮助。

关于mysql - 获取 "Can' t 通过套接字 '/var/run/mysqld/mysqld.sock' 连接到本地 MySQL 服务器“为 Ruby on Rails 应用程序设置 mysql 数据库时出错，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/19530089/