Homebrew ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)

When you got the server running via

mysql.server start

you should see the socket in /tmp/mysql.sock. However, the system seems to expect it in /var/mysql/mysql.sock. To fix this, you have to create a symlink in /var/mysql:

sudo mkdir /var/mysql

sudo ln -s /tmp/mysql.sock /var/mysql/mysql.sock




from : https://stackoverflow.com/questions/15016376/cant-connect-to-local-mysql-server-through-socket-homebrew