Exemplo n.º 1
0
        internal void UpdatePeersInfo(IEnumerable <Row> rs)
        {
            var foundPeers = new HashSet <IPEndPoint>();

            foreach (var row in rs)
            {
                var address = GetAddressForPeerHost(row, _config.AddressTranslator, _config.ProtocolOptions.Port);
                if (address == null)
                {
                    _logger.Error("No address found for host, ignoring it.");
                    continue;
                }
                foundPeers.Add(address);
                var host = Metadata.GetHost(address);
                if (host == null)
                {
                    host = Metadata.AddHost(address);
                }
                host.SetLocationInfo(row.GetValue <string>("data_center"), row.GetValue <string>("rack"));
                host.Tokens = row.GetValue <IEnumerable <string> >("tokens") ?? new string[0];
            }

            // Removes all those that seems to have been removed (since we lost the control connection or not valid contact point)
            foreach (var address in Metadata.AllReplicas())
            {
                if (!address.Equals(_host.Address) && !foundPeers.Contains(address))
                {
                    Metadata.RemoveHost(address);
                }
            }
        }