This is a simple wrapper script that starts a command once redis has finished loading its dataset in memory.

Installation:

$ pip install waitredis

Sample usage:

$ sudo restart redis-server && waitredis redis-cli time
redis-server start/running, process 20573
1) "1379426556"
2) "512325"

Without the wrapper script (and if redis takes a significant amount of time to load its dataset from disk), you get an error:

$ sudo restart redis-server && redis-cli time
redis-server start/running, process 20504
(error) LOADING Redis is loading the dataset in memory