I recently found a gem buried in the internal Meta wiki that described how dynamic config is created and managed for all the family apps of Meta/Facebook, serving billions of users every day.

The research paper is not very new, but still very valuable, and most importantly, freely accessible to public at: https://research.fb.com/wp-content/uploads/2016/11/holistic-configuration-management-at-facebook.pdf

rsync -avz --exclude .git old-folder/ new-folder

$ cd new-folder
$ git checkout -b my-new-branch

Lastly, we can avoid lots of hassles if using “git pull –rebase” instead of the simple “git pull” command.

show full processlist;

show engine innodb status;

ALTER TABLE my_table AUTO_INCREMENT = 1000000;