What's the clustering story these days? Last I checked, Redis Cluster still had lots of issues losing writes, and the design doesn't seem to have been revised since Aphyr ran Jepsen tests on it back in 2013, making it (at least from my perspective) practically useless for anything that requires distributed consistency, which means most things that I look to use a distributed data store for.

I've also been warned by fellow devs that much of the clustering logic is actually done in the client, and there's historically been a lack of mature clients for all languages. Even if you find a mature client, the complexity of the implementation implies that not all clients may behave identically, or may have different bugs. Then there's the issue of lock-in, where you become dependent on a specific client library and its development lifecycle. I don't know if all of this is true, but I also don't hear a lot of people talking about Redis Cluster these days.

I know you can use Redis in master/slave mode via Sentinel + Twemproxy, though even this solution seems to have some issues with data consistency. Running all three also appears a lot more complex than an integrated system.

I see a lot of comments implying that Redis is mainly used in single-node setups, so that might be where it shines?