[discussion]Redis registry or Redis Metadata store need support redis cluster

Before redis 3.0
1. redis was used in one machine.
2. Redis also used in sentinel mode, the client can write the data into master machine, and all of the client can read from both master and slave machine.
3. Twitter create a proxy named twemproxy to support cluster .

After redis 3,
the redis start to support cluster. Until now it is not proved it is the best solution.

Is it necessary that we should support redis cluster or something else? Maybe we can also get help from community.