- usefull if you have multiple worker and you want to proses job with only one worker
- or you can use for update transaction in database without using database lock
- aaron francis https://www.youtube.com/watch?v=jGb5zIgwL4c
- laravel daily https://www.youtube.com/watch?v=zybiFatkoCo
behind the scene if you use database for cache driver laravel will create 2 table to store the lock
this one use database lock feature