Skip hashing and dispatching keys for single server pools
Skip hashing and dispatching keys for single server pools

The computed index would always be 0.

andyqzb/twemproxy,andyqzb/twemproxy,twitter/twemproxy,twitter/twemproxy,andyqzb/twemproxy,twitter/twemproxy,twitter/twemproxy,andyqzb/twemproxy