Using Redis with Sentinel

I want to use distributed polling using Redis and Sentinel for HA setup but can’t seem to find any good documentation. The documentation suggests using Sentinel but doesn’t provide the information on how.

I have 2 LibreNS servers and a 3rd server so i have a 3 device cluster as advised. But how and where do i configure these servers so they can do a failover in case the master fails?

It seems i can’t configure multiple sentinel servers in the .env file and if i configure it with the local server ip i get the log message that you can’t write on a replica server. If i configure redis_sentinel with the master IP then if the master goes down the server can’t reach a valid redis server.

Any idea on how to get this working or what should be the right configuration?