datastax/ruby-driver — pull request #29 by avalanche123 (2014-10-14 00:54:03+00:00)
Title: [RUBY-41] prevent connections to ignored hosts

* Ensure the driver never attempts to connect to hosts in
remote datacenters when remove dcs must be ignored
* Reverse the order of notifications on host_down/host_lost
events to have load balancing policy updated before
control connection
* Check load balancing distance when starting to
continuously reconnect to down hosts