private void MemberLeft(MemberLeftEvent msg, IContext context)
{
_logger.LogInformation($"Kind {_kind} Member Left {msg.Address}");
foreach (var(actorId, pid) in _partition.ToArray())
{
if (pid.Address == msg.Address)
{
_partition.Remove(actorId);
_reversePartition.Remove(pid);
}
}
//If the left member is self, transfer remaining pids to others
if (msg.Address == ProcessRegistry.Instance.Address)
{
//TODO: right now we transfer ownership on a per actor basis.
//this could be done in a batch
//ownership is also racy, new nodes should maybe forward requests to neighbours (?)
foreach (var(actorId, _) in _partition.ToArray())
{
var address = MemberList.GetPartition(actorId, _kind);
if (!string.IsNullOrEmpty(address))
{
TransferOwnership(actorId, address, context);
}
}
}
}
private void MemberLeft(MemberLeftEvent msg)
{
_logger.LogInformation("Member Left {0}", msg.Address);
foreach (var(actorId, pid) in _partition.ToArray())
{
if (pid.Address == msg.Address)
{
_partition.Remove(actorId);
}
}
}
private void Notify(MemberStatus @new, MemberStatus old)
{
if (@new == null && old == null)
{
return; //ignore
}
if (@new == null)
{
//notify left
var left = new MemberLeftEvent(old.Host, old.Port, old.Kinds);
Actor.EventStream.Publish(left);
_members.Remove(old.Address);
var endpointTerminated = new EndpointTerminatedEvent
{
Address = old.Address
};
Actor.EventStream.Publish(endpointTerminated);
return;
}
if (old == null)
{
//notify joined
var joined = new MemberJoinedEvent(@new.Host, @new.Port, @new.Kinds);
Actor.EventStream.Publish(joined);
return;
}
if (@new.MemberId != old.MemberId)
{
var rejoined = new MemberRejoinedEvent(@new.Host, @new.Port, @new.Kinds);
Actor.EventStream.Publish(rejoined);
return;
}
if (old.Alive && [email protected])
{
var unavailable = new MemberUnavailableEvent(@new.Host, @new.Port, @new.Kinds);
Actor.EventStream.Publish(unavailable);
return;
}
if (@new.Alive && !old.Alive)
{
var available = new MemberAvailableEvent(@new.Host, @new.Port, @new.Kinds);
Actor.EventStream.Publish(available);
}
}
private static void UpdateAndNotify(MemberStatus @new, MemberStatus old)
{
if (@new == null && old == null)
{
return; //ignore
}
if (@new == null)
{
//update MemberStrategy
foreach (var k in old.Kinds)
{
if (MemberStrategyByKind.TryGetValue(k, out var ms))
{
ms.RemoveMember(old);
if (ms.GetAllMembers().Count == 0)
{
MemberStrategyByKind.Remove(k);
}
}
}
//notify left
var left = new MemberLeftEvent(old.Host, old.Port, old.Kinds);
Actor.EventStream.Publish(left);
Members.Remove(old.Address);
var endpointTerminated = new EndpointTerminatedEvent
{
Address = old.Address
};
Actor.EventStream.Publish(endpointTerminated);
return;
}
if (old == null)
{
//update MemberStrategy
foreach (var k in @new.Kinds)
{
if (!MemberStrategyByKind.ContainsKey(k))
{
MemberStrategyByKind[k] = Cluster.Config.MemberStrategyBuilder(k);
}
MemberStrategyByKind[k].AddMember(@new);
}
//notify joined
var joined = new MemberJoinedEvent(@new.Host, @new.Port, @new.Kinds);
Actor.EventStream.Publish(joined);
return;
}
//update MemberStrategy
if (@new.Alive != old.Alive || @new.MemberId != old.MemberId || @new.StatusValue != null && [email protected](old.StatusValue))
{
foreach (var k in @new.Kinds)
{
if (MemberStrategyByKind.TryGetValue(k, out var ms))
{
ms.UpdateMember(@new);
}
}
}
//notify changes
if (@new.MemberId != old.MemberId)
{
var rejoined = new MemberRejoinedEvent(@new.Host, @new.Port, @new.Kinds);
Actor.EventStream.Publish(rejoined);
}
}