Redis Sentinel manual failover

Hint

You're not able to control which redis replica will chosen for the failover.

1. Connect to your sentinel instance:

   redis-cli -p <SENTINEL-PORT>
   

2. Have a look at the configured masters, current master and the available replicas

   INFO sentinel
   

   SENTINEL master <master name>
   SENTINEL get-master-addr-by-name <master name> # IP and port only
   

   SENTINEL slaves <master name>
   

3. Force a failover

   SENTINEL failover <master name> 
   

4. After some seconds you can have a second look at the current master:

   SENTINEL get-master-addr-by-name <master name> 
   

   The IP should have changed.