/// <summary>
/// TBD
/// </summary>
/// <param name="node">TBD</param>
/// <exception cref="InvalidOperationException">
/// This exception is thrown when a non-leader tries to down the specified <paramref name="node"/>.
/// </exception>
public override void Down(Address node)
{
if (!_leader)
{
throw new InvalidOperationException("Must be leader to down node");
}
_cluster.LogInfo("Leader is auto-downing unreachable node [{0}]", node);
_cluster.Down(node);
}
private void down(Address node)
{
if (!_isLeader)
{
return;
}
_cluster.Down(node);
}
protected override void OnReceive(object message)
{
var up = message as ClusterEvent.MemberUp;
if (up != null)
{
var mem = up;
Log.Info("Member is Up: {0}", mem.Member);
}
else if (message is ClusterEvent.UnreachableMember)
{
var unreachable = (ClusterEvent.UnreachableMember)message;
Log.Info("Member detected as unreachable: {0}", unreachable.Member);
//멤버와 갑자기 연락 두절이 되었기때문에, 멈버를 제거합니다.
Cluster.Down(unreachable.Member.Address);
}
else if (message is ClusterEvent.MemberRemoved)
{
var removed = (ClusterEvent.MemberRemoved)message;
Log.Info("Member is Removed: {0}", removed.Member);
}
else if (message is ClusterEvent.IMemberEvent)
{
//IGNORE
}
else if (message is AskToken)
{
OnReceiveDataByAskToken(message as AskToken); //실제 처리할 DataProcess
}
else if (message is string)
{
Log.Info(message as string);
}
else
{
Unhandled(message);
}
}
private void HandleStabilityReached()
{
if (Log.IsInfoEnabled && _unreachable.Any())
{
Log.Info("A network partition detected - unreachable nodes: [{0}], remaining: [{1}]", string.Join(", ", _unreachable.Select(m => m.Address)), string.Join(", ", _reachable.Select(m => m.Address)));
}
var context = new NetworkPartitionContext(_unreachable, _reachable);
var nodesToDown = _strategy.Apply(context).ToImmutableArray();
if (nodesToDown.Length > 0)
{
if (Log.IsInfoEnabled)
{
Log.Info("A network partition has been detected. {0} decided to down following nodes: [{1}]", _strategy, string.Join(", ", nodesToDown));
}
foreach (var member in nodesToDown)
{
_cluster.Down(member.Address);
}
}
}