Can’t connect to local MySQL server through socket ‘/tmp/mysql.sock

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After a lot of searching, I was able to fix the “PID file cannot be found” issue on my machine. I’m on OS X 10.9.3 and installed mysql via Homebrew.

First, I found my PID file here:

/usr/local/var/mysql/{username}.pid

Next, I located my my.cnf file here:

/usr/local/Cellar/mysql/5.6.19/my.cnf

Finally, I added this line to the bottom of my.cnf:

pid-file = /usr/local/var/mysql/{username}.pid

Hopefully this works for someone else, and saves you a headache! Don’t forget to replace {username} with your machine’s name (jeffs-air-2 in my case).