Support for multiple Redis Sentinels #2132

My knowledge about the Redis Sentinel is very limited right now, so, this is probably going to be just a question about how to use this package properly...

I have 3 Sentinel nodes (as there should be by recommendations), but in the README I see only how to use a single Sentinel node... The RedisSentinel() class accepts only single host (IP address or hostname).

Am I supposed to manage the connections to Sentiinel nodes myself? For example, should I connect to first Sentinel node (that is down) with class RedisSentinel(), catch an exception and try the next Sentinel node until no Sentinel nodes are left to try? At least. I think that Predis does exactly that.

Are there any drawbacks why multiple multiple Sentinels are not (yet) supported (the management is not built-in)?

Expected behaviour

Should be able to use multiple sentinels and use another sentinel when one is down.

Actual behaviour

Only single host can be used.

I'm seeing this behaviour on

• OS: Ubuntu 22.04
• Redis: 6.2
• PHP: 8.1
• phpredis: 5.3.7

Steps to reproduce, backtrace or example script

Just fallow the instructions in dedicated README.

I've checked

• There is no similar issue from other users
• Issue isn't fixed in develop branch