Rails migration error: getaddrinfo: Name or service not known
If you get this error: ruby rake db:migrate RAILS_ENV="staging" getaddrinfo: Name or service not known Add host: 127.0.0.1 in your database.yml as shown below: ruby staging: adapter: mysql encoding: utf8 database: staging username: root password: pool: 5 socket: ‘/var/lib/mysql/mysql.sock’ host: 127.0.0.1