延迟作业-耙作业：清除原因“无法通过套接字'/tmp/mysql.sock'连接到本地MySQL服务器（2）
[英]Delayed Job - rake jobs:clear causes "Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
问题描述
My database.yml file: 
我的database.yml文件：
production:
adapter: mysql2
database: app_production
host: 127.0.0.1
username: root
password: 12345678
port: 3306
pool: 15
timeout: 5000
socket: /var/run/mysqld/mysqld.sock
(Removing the socket line does not help) （卸下插座线无济于事）
Path according to my.cnf: 根据my.cnf的路径：
/var/run/mysqld/mysqld.sock
Mysql is running because my app is up, but when I run: Mysql正在运行，因为我的应用已启动，但是当我运行时：
rake jobs:clear
from the console, I get: 从控制台，我得到：
rake aborted!
Mysql2::Error: Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
/home/deploy/dispatch/shared/bundle/ruby/2.2.0/gems/mysql2-0.3.18/lib/mysql2/client.rb:70:in `connect'
/home/deploy/dispatch/shared/bundle/ruby/2.2.0/gems/mysql2-0.3.18/lib/mysql2/client.rb:70:in `initialize'
/home/deploy/dispatch/shared/bundle/ruby/2.2.0/gems/activerecord-4.2.1/lib/active_record/connection_adapters/mysql2_adapter.rb:18:in `new'
/home/deploy/dispatch/shared/bundle/ruby/2.2.0/gems/activerecord-4.2.1/lib/active_record/connection_adapters/mysql2_adapter.rb:18:in `mysql2_connection'
/home/deploy/dispatch/shared/bundle/ruby/2.2.0/gems/activerecord-4.2.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:438:in `new_connection'
/home/deploy/dispatch/shared/bundle/ruby/2.2.0/gems/activerecord-4.2.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:448:in `checkout_new_connection'
/home/deploy/dispatch/shared/bundle/ruby/2.2.0/gems/activerecord-4.2.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:422:in `acquire_connection'
/home/deploy/dispatch/shared/bundle/ruby/2.2.0/gems/activerecord-4.2.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:349:in `block in checkout'
/home/deploy/dispatch/shared/bundle/ruby/2.2.0/gems/activerecord-4.2.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:348:in `checkout'
/home/deploy/dispatch/shared/bundle/ruby/2.2.0/gems/activerecord-4.2.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:263:in `block in connection'
/home/deploy/dispatch/shared/bundle/ruby/2.2.0/gems/activerecord-4.2.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:262:in `connection'
/home/deploy/dispatch/shared/bundle/ruby/2.2.0/gems/activerecord-4.2.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:567:in `retrieve_connection'
/home/deploy/dispatch/shared/bundle/ruby/2.2.0/gems/activerecord-4.2.1/lib/active_record/connection_handling.rb:113:in `retrieve_connection'
/home/deploy/dispatch/shared/bundle/ruby/2.2.0/gems/activerecord-4.2.1/lib/active_record/connection_handling.rb:87:in `connection'
/home/deploy/dispatch/shared/bundle/ruby/2.2.0/gems/activerecord-4.2.1/lib/active_record/relation.rb:477:in `delete_all'
/home/deploy/dispatch/shared/bundle/ruby/2.2.0/gems/activerecord-4.2.1/lib/active_record/querying.rb:8:in `delete_all'
/home/deploy/dispatch/shared/bundle/ruby/2.2.0/gems/delayed_job-4.0.6/lib/delayed/tasks.rb:4:in `block (2 levels) in <top (required)>'
Tasks: TOP => jobs:clear
1 个解决方案
解决方案1
0 已采纳 2015-07-01 15:51:09
Delayed job will take the database configuration associated with the rails environment your application is running in. 延迟的工作将采用与应用程序在其中运行的Rails环境关联的数据库配置。
If you just run rake jobs:clear , it'll run by default in development mode and will try to connect to your development database. 如果您仅运行rake jobs:clear ，它将默认在开发模式下运行，并尝试连接到您的开发数据库。 If you want delayed_job to connect to your production database, you need to set the environment accordingly, ie production: 如果想让delay_job连接到生产数据库，则需要相应地设置环境，即生产：
RAILS_ENV=production rake jobs:clear
By the way, keep the socket line in your database.yml , otherwise it'll default to /tmp/mysql.sock . 顺便说一句，将socket行保留在database.yml ，否则它将默认为/tmp/mysql.sock 。
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