class Redis::Client::Connector::Sentinel

def sentinel_detect
  @sentinels.each do |sentinel|
    client = Client.new(@options.merge({
                                         host: sentinel[:host] || sentinel["host"],
                                         port: sentinel[:port] || sentinel["port"],
                                         username: sentinel[:username] || sentinel["username"],
                                         password: sentinel[:password] || sentinel["password"],
                                         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