Redis Cluster support

[drauschenbach]

Where does this module stand on Redis Cluster support? And where does the whole Lua-based qless-core approach stand in relation to Redis Cluster? I used to think bless-core was brilliant, but now I'm wondering how it all ties together now that Redis Cluster is a usable release candidate.

[vadim-ex]

We are investigating our options to improve qless scalability. One of the key requirement for backend is atomicity of operations (atomicity of Lua script execution was one of the reasons for picking Redis). As far as I can tell Redis Cluster guaranties eventual consistency of operations, which might be a problem.