The current environment is as below,
Host 1: Master in Docker Container + Sentinel in separate Docker Container
Host 2: Replica in Docker Container + Sentinel in separate Docker Container
Host 3: Sentinel in Docker Container
Replication is working fine between Master and Replica.
Sentinels in all the Hosts are able to discover the Master and Replica (verified by SENTINEL MASTER mymaster and SENTINEL REPLICAS mymaster).
But, no sentinel is able to auto discover any other sentinel (SENTINEL SENTINELS mymaster returns empty array).
In each sentinel.conf of the respective Sentinel, announce-ip and announce-port options have been set to the respective Host's IP and Sentinel default port (26379).
The channel __sentinel__:hello is receiving hello messages from all Sentinels (verified by running SUBSCRIBE __sentinel__:hello in redis-cli on Master node). Channel name was obtained from here.
Despite all these, Sentinels are not able to auto discover each other.
Any suggestions?
