您必须在其pubsub频道之一上订阅哨兵消息。您可以在发布的链接中看到哨兵将发布消息，例如
+odown <instance details> -- The specified instance is now in Objectively Down state.-odown <instance details> -- The specified instance is no longer in Objectively Down state.+failover-takedown <instance details> -- 25% of the configured failover timeout has elapsed, but this sentinel can't see any progress, and is the new leader. It starts to act as the new leader reconfiguring the remaining slaves to replicate with the new master.+failover-triggered <instance details> -- We are starting a new failover as a the leader sentinel.
因此，当您在其中一个频道上看到一个哨兵发布时，您需要解析消息并让您的客户端做出相应的响应。Redis并不聪明-您必须使用客户端库来处理这些事情。
具体来说，最有用的渠道是
+odown+failover-detected+switch-master
