Route read operations to replica nodes if available

[nikhilo]

Would it be possible to route read operations to the replica nodes in a Redis cluster? Currently it seems to create a connection pool only to the master nodes. And the replica nodes are not being used at all.

[zuiderkwast]

It would be possible to implement it, but there is no active development currently. If you implement it and it's not too complex, then I think we can accept it.

We're working on a new cluster client called ered: https://github.com/Ericsson/ered
In the long term, it might be better to implement it there.