public void ClusterMessages_must_be_serializable()
{
var address = new Address("akka.tcp", "system", "some.host.org", 4711);
var uniqueAddress = new UniqueAddress(address, 17);
var address2 = new Address("akka.tcp", "system", "other.host.org", 4711);
var uniqueAddress2 = new UniqueAddress(address2, 18);
CheckSerialization(new InternalClusterAction.Join(uniqueAddress, ImmutableHashSet.Create("foo", "bar")));
CheckSerialization(new ClusterUserAction.Leave(address));
CheckSerialization(new ClusterUserAction.Down(address));
CheckSerialization(new InternalClusterAction.InitJoin());
CheckSerialization(new InternalClusterAction.InitJoinAck(address));
CheckSerialization(new InternalClusterAction.InitJoinNack(address));
CheckSerialization(new ClusterHeartbeatSender.Heartbeat(address));
CheckSerialization(new ClusterHeartbeatSender.HeartbeatRsp(uniqueAddress));
var node1 = new VectorClock.Node("node1");
var node2 = new VectorClock.Node("node2");
var node3 = new VectorClock.Node("node3");
var node4 = new VectorClock.Node("node4");
var g1 =
new Gossip(ImmutableSortedSet.Create(a1, b1, c1, d1)).Increment(node1)
.Increment(node2)
.Seen(a1.UniqueAddress)
.Seen(b1.UniqueAddress);
var g2 = g1.Increment(node3).Increment(node4).Seen(a1.UniqueAddress).Seen(c1.UniqueAddress);
var reachability3 =
Reachability.Empty.Unreachable(a1.UniqueAddress, e1.UniqueAddress)
.Unreachable(b1.UniqueAddress, e1.UniqueAddress);
var g3 = g2.Copy(members: ImmutableSortedSet.Create(a1, b1, c1, d1, e1),
overview: g2.Overview.Copy(reachability: reachability3));
CheckSerialization(new GossipEnvelope(a1.UniqueAddress, uniqueAddress2, g1));
CheckSerialization(new GossipEnvelope(a1.UniqueAddress, uniqueAddress2, g2));
CheckSerialization(new GossipEnvelope(a1.UniqueAddress, uniqueAddress2, g3));
CheckSerialization(new GossipStatus(a1.UniqueAddress, g1.Version));
CheckSerialization(new GossipStatus(a1.UniqueAddress, g2.Version));
CheckSerialization(new GossipStatus(a1.UniqueAddress, g3.Version));
CheckSerialization(new InternalClusterAction.Welcome(uniqueAddress, g2));
var mg = new MetricsGossip(ImmutableHashSet.Create <NodeMetrics>(new[]
{
new NodeMetrics(a1.Address, 4711, ImmutableHashSet.Create <Metric>(new Metric("foo", 1.2, null))),
new NodeMetrics(b1.Address, 4712,
ImmutableHashSet.Create <Metric>(new Metric("foo", 2.1, new EWMA(100.0, 0.18))
, new Metric("bar1", Double.MinValue, null), new Metric("bar2", float.MaxValue, null),
new Metric("bar3", int.MaxValue, null), new Metric("bar4", long.MaxValue, null),
new Metric("bar5", double.MaxValue, null)))
}));
CheckSerialization(new MetricsGossipEnvelope(a1.Address, mg, true));
}
/// <summary>
/// Receives changes from peer nodes, merges remote with local gossip nodes, then publishes
/// changes to the event stream for load balancing router consumption, and gossip back.
/// </summary>
private void ReceiveGossip(MetricsGossipEnvelope envelope)
{
// remote node might not have same view of member nodes, this side should only care
// about nodes that are known here, otherwise removed nodes can come back
var otherGossip = envelope.Gossip.Filter(_nodes.Select(n => n).ToImmutableHashSet());
_latestGossip = _latestGossip.Merge(otherGossip);
// changes will be published in the period collect task
if (!envelope.Reply)
{
ReplyGossipTo(envelope.FromAddress);
}
}
public void Cluster_messages_should_be_serializable()
{
var metrics = ImmutableHashSet <NodeMetrics> .Empty;
metrics = metrics.Add(new NodeMetrics(_a1.Address, 4711, new []
{
new NodeMetrics.Types.Metric("foo", 1.2, Option <NodeMetrics.Types.EWMA> .None)
}));
metrics = metrics.Add(new NodeMetrics(_b1.Address, 4712, new []
{
new NodeMetrics.Types.Metric("foo", 2.1, new NodeMetrics.Types.EWMA(value: 100, alpha: 0.18)),
new NodeMetrics.Types.Metric("bar1", double.MaxValue, Option <NodeMetrics.Types.EWMA> .None),
new NodeMetrics.Types.Metric("bar2", float.MaxValue, Option <NodeMetrics.Types.EWMA> .None),
new NodeMetrics.Types.Metric("bar3", int.MaxValue, Option <NodeMetrics.Types.EWMA> .None),
new NodeMetrics.Types.Metric("bar4", long.MaxValue, Option <NodeMetrics.Types.EWMA> .None),
}));
var gossip = new MetricsGossip(metrics);
CheckSerialization(new MetricsGossipEnvelope(_a1.Address, gossip, true));
}
public void ClusterMessages_must_be_serializable()
{
var address = new Address("akka.tcp", "system", "some.host.org", 4711);
var uniqueAddress = new UniqueAddress(address, 17);
var address2 = new Address("akka.tcp", "system", "other.host.org", 4711);
var uniqueAddress2 = new UniqueAddress(address2, 18);
CheckSerialization(new InternalClusterAction.Join(uniqueAddress, ImmutableHashSet.Create("foo","bar")));
CheckSerialization(new ClusterUserAction.Leave(address));
CheckSerialization(new ClusterUserAction.Down(address));
CheckSerialization(new InternalClusterAction.InitJoin());
CheckSerialization(new InternalClusterAction.InitJoinAck(address));
CheckSerialization(new InternalClusterAction.InitJoinNack(address));
CheckSerialization(new ClusterHeartbeatSender.Heartbeat(address));
CheckSerialization(new ClusterHeartbeatSender.HeartbeatRsp(uniqueAddress));
var node1 = new VectorClock.Node("node1");
var node2 = new VectorClock.Node("node2");
var node3 = new VectorClock.Node("node3");
var node4 = new VectorClock.Node("node4");
var g1 =
new Gossip(ImmutableSortedSet.Create(a1, b1, c1, d1)).Increment(node1)
.Increment(node2)
.Seen(a1.UniqueAddress)
.Seen(b1.UniqueAddress);
var g2 = g1.Increment(node3).Increment(node4).Seen(a1.UniqueAddress).Seen(c1.UniqueAddress);
var reachability3 =
Reachability.Empty.Unreachable(a1.UniqueAddress, e1.UniqueAddress)
.Unreachable(b1.UniqueAddress, e1.UniqueAddress);
var g3 = g2.Copy(members: ImmutableSortedSet.Create(a1, b1, c1, d1, e1),
overview: g2.Overview.Copy(reachability: reachability3));
CheckSerialization(new GossipEnvelope(a1.UniqueAddress, uniqueAddress2, g1));
CheckSerialization(new GossipEnvelope(a1.UniqueAddress, uniqueAddress2, g2));
CheckSerialization(new GossipEnvelope(a1.UniqueAddress, uniqueAddress2, g3));
CheckSerialization(new GossipStatus(a1.UniqueAddress, g1.Version));
CheckSerialization(new GossipStatus(a1.UniqueAddress, g2.Version));
CheckSerialization(new GossipStatus(a1.UniqueAddress, g3.Version));
CheckSerialization(new InternalClusterAction.Welcome(uniqueAddress, g2));
var mg = new MetricsGossip(ImmutableHashSet.Create<NodeMetrics>(new[]
{
new NodeMetrics(a1.Address, 4711, ImmutableHashSet.Create<Metric>(new Metric("foo", 1.2, null))),
new NodeMetrics(b1.Address, 4712,
ImmutableHashSet.Create<Metric>(new Metric("foo", 2.1, new EWMA(100.0, 0.18))
, new Metric("bar1", Double.MinValue, null), new Metric("bar2", float.MaxValue, null),
new Metric("bar3", int.MaxValue, null), new Metric("bar4", long.MaxValue, null),
new Metric("bar5", double.MaxValue, null)))
}));
CheckSerialization(new MetricsGossipEnvelope(a1.Address, mg, true));
}
/// <summary>
/// Samples the latest metrics for the node, updates metrics statistics in
/// <see cref="MetricsGossip"/>, and publishes the change to the event bus.
///
/// <seealso cref="IMetricsCollector"/>
/// </summary>
private void Sample()
{
_latestGossip += _collector.Sample();
Publish();
}
/// <summary>
/// Removes a member from the member node ring.
/// </summary>
private void RemoveMember(Member member)
{
_nodes = _nodes.Remove(member.Address);
_latestGossip = _latestGossip.Remove(member.Address);
Publish();
}
