class Redis::Client::Connector::Sentinel

def sentinel_detect
  @sentinels.each do |sentinel|
    client = Client.new(@options.merge({
      :host => sentinel[:host],
      :port => sentinel[:port],
      :reconnect_attempts => 0,
    }))
    begin
      if result = yield(client)
        # This sentinel responded. Make sure we ask it first next time.
        @sentinels.delete(sentinel)
        @sentinels.unshift(sentinel)
        return result
      end
    rescue BaseConnectionError
    ensure
      client.disconnect
    end
  end
  raise CannotConnectError, "No sentinels available."
end