Question

I have been trying to get a ruby on rails app going on my machine for a little while now for a project I need to work on for work. The issue is, my system must be setting the default location of MySQL somewhere because every time I start the rails webserver (webrick) and run localhost:3000, I get the following error.

“Can’t connect to local MySQL server through socket ‘/opt/local/var/run/mysqld/mysqld.sock’ (2)”

I have deleted the installed version of mysql and removed all folders. I reinstalled mysql using BREW. I now have a running mysql instance. The output of “which mysql” prints “/usr/local/bin/mysql” which is actually a sim link to “/usr/local/Cellar/mysql/5.5.14/bin/mysql”.

Does anyone know what might be forcing my rails apps to look for mysql in “/opt/local/var/run/mysqld/mysqld.sock”

NOTE: I deleted my current my.cnf because it was messing up the brew version of mysql I currently have running, so I know that is has nothing to do with that.

Answer 1

/opt/local is the default location for MacPorts-installed packages. Chances are you installed rails and or MySQL via MacPorts. Try:

sudo /opt/local/bin/port installed

to see what is installed.