Tag Archives: Homebrew

OS X – Fail to start MySQL server which is installed by Homebrew

After i reboot my OS X, i find that i couldn’t start the MySQL server and it throws the following error:

hatuey:5.6.19 yingkityuen$ mysql.server start
Starting MySQL
. ERROR! The server quit without updating PID file (/usr/local/var/mysql/hatuey.local.pid).


Go to the above folder and delete the mysql error log which is ended with .err. In my case, i executed the following command:

hatuey:5.6.19 yingkityuen$ rm /usr/local/var/mysql/hatuey.local.err

Where hatuey is my Mac machine name.

This should fix the problem.

Done =)

Reference: Mahdi Yusuf – MySQL ‘The server quit without updating PID file’

rbenv – Ruby version manager

rbenv is an alternative to rvm for managing your Rubies. You can find some articles comparing the two. In general, rbenv is more lightweight without overriding the cd and gem command which rvm does and their similarities outweigh their differences. Here is a great article written by Jonathan Jackson about the two solutions.


For Mac users, you could install rbenv using Homebrew. Otherwise, you need to checkout the repository on GitHub.

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