Ejemplo n.º 1
0
        private void HandleAlive(IPEndPoint remoteEndPoint, AliveMessage message)
        {
            TrackedGossipNode node;
            GossipNodeState   oldState;

            lock (_lock)
            {
                if (!_nodes.TryGetValue(message.Name, out node))
                {
                    node = new TrackedGossipNode(message.Name, message.IPEndPoint, message.Metadata)
                    {
                        Incarnation  = int.MinValue,
                        State        = GossipNodeState.Dead,
                        UpdatedAtUtc = DateTime.MinValue
                    };

                    if (_nodes.Count > 0)
                    {
                        int randomIndex = _random.Next(0, _nodes.Count - 1);
                        var temp        = _nodes[randomIndex];
                        _nodes[randomIndex] = node;
                        _nodes.Add(temp);
                    }
                    else
                    {
                        _nodes.Add(node);
                    }
                }

                if (!node.IPEndPoint.Equals(message.IPEndPoint))
                {
                    _configuration.Logger.Error("Conflicting endpoints for {Name}. Mine: {MyEndPoint} Theirs: {TheirEndPoint}", node.Name, node.IPEndPoint, message.IPEndPoint);
                    return;
                }

                if (node.Incarnation >= message.Incarnation)
                {
                    _configuration.Logger.Verbose("Received old incarnation alive request for {Name}. Mine: {MyIncarnation} Theirs: {TheirIncarnation}", node.Name, node.Incarnation, message.Incarnation);
                    return;
                }

                oldState          = node.State;
                node.State        = GossipNodeState.Alive;
                node.Incarnation  = message.Incarnation;
                node.UpdatedAtUtc = DateTime.UtcNow;
            }

            _messagePump.Broadcast(message, null);

            if (oldState == GossipNodeState.Dead)
            {
                if (NodeJoined != null)
                {
                    NodeJoined(node);
                }
            }
        }
Ejemplo n.º 2
0
        private void HandleAlive(IPEndPoint remoteEndPoint, AliveMessage message)
        {
            TrackedGossipNode node;
            GossipNodeState oldState;
            lock (_lock)
            {
                if (!_nodes.TryGetValue(message.Name, out node))
                {
                    node = new TrackedGossipNode(message.Name, message.IPEndPoint, message.Metadata)
                    {
                        Incarnation = int.MinValue,
                        State = GossipNodeState.Dead,
                        UpdatedAtUtc = DateTime.MinValue
                    };

                    if (_nodes.Count > 0)
                    {
                        int randomIndex = _random.Next(0, _nodes.Count - 1);
                        var temp = _nodes[randomIndex];
                        _nodes[randomIndex] = node;
                        _nodes.Add(temp);
                    }
                    else
                    {
                        _nodes.Add(node);
                    }
                }

                if (!node.IPEndPoint.Equals(message.IPEndPoint))
                {
                    _configuration.Logger.Error("Conflicting endpoints for {Name}. Mine: {MyEndPoint} Theirs: {TheirEndPoint}", node.Name, node.IPEndPoint, message.IPEndPoint);
                    return;
                }

                if (node.Incarnation >= message.Incarnation)
                {
                    _configuration.Logger.Verbose("Received old incarnation alive request for {Name}. Mine: {MyIncarnation} Theirs: {TheirIncarnation}", node.Name, node.Incarnation, message.Incarnation);
                    return;
                }

                oldState = node.State;
                node.State = GossipNodeState.Alive;
                node.Incarnation = message.Incarnation;
                node.UpdatedAtUtc = DateTime.UtcNow;
            }

            _messagePump.Broadcast(message, null);

            if (oldState == GossipNodeState.Dead)
            {
                if (NodeJoined != null)
                {
                    NodeJoined(node);
                }
            }
        }