private async Task LoadNodesFromSource()
{
if (_disposed > 0)
{
return;
}
try
{
var sourceNodes = await Discovery.GetNodes(DeploymentIdentifier).ConfigureAwait(false);
if (sourceNodes == _lastDiscoveredNodes)
{
return;
}
lock (_lock)
{
if (sourceNodes == null)
{
_isUndeployed = true;
StopMonitoringNodes(_nodesMonitoringState);
_nodesMonitoringState = new NodeMonitoringState[0];
}
else
{
var newNodes = sourceNodes.Select(CreateState).ToArray();
var oldNodes = _nodesMonitoringState;
var nodesToRemove = oldNodes.Except(newNodes).ToArray();
_nodesMonitoringState = oldNodes.Except(nodesToRemove).Union(newNodes).ToArray();
StopMonitoringNodes(nodesToRemove);
_isUndeployed = false;
}
SetReachableNodes();
_lastDiscoveredNodes = sourceNodes;
}
}
catch (Exception ex)
{
LastException = ex;
}
}
private async Task LoadNodesFromSource()
{
if (_disposed > 0)
{
return;
}
try
{
var sourceNodes = await Discovery.GetNodes(DeploymentIdentifier).ConfigureAwait(false);
if (sourceNodes == _lastDiscoveredNodes)
{
return;
}
lock (_lock)
{
if (sourceNodes == null)
{
_isUndeployed = true;
StopMonitoringNodes(_nodesMonitoringState);
_nodesMonitoringState = new NodeMonitoringState[0];
}
else
{
var newNodes = sourceNodes.Select(CreateState).ToArray();
var oldNodes = _nodesMonitoringState;
var nodesToRemove = oldNodes.Except(newNodes).ToArray();
_nodesMonitoringState = oldNodes.Except(nodesToRemove).Union(newNodes).ToArray();
StopMonitoringNodes(nodesToRemove);
_isUndeployed = false;
foreach (NodeMonitoringState monitoringState in nodesToRemove)
{
Node node = monitoringState.Node;
Log.Info(logDelegate =>
{
Uri serviceUriHttp = new Uri($"http://{node.Hostname}:{node.Port}");
Uri serviceUriHttps = new Uri($"https://{node.Hostname}:{node.Port}");
ServicePoint servicePointHttp = ServicePointManager.FindServicePoint(serviceUriHttp);
ServicePoint servicePointHttps = ServicePointManager.FindServicePoint(serviceUriHttps);
logDelegate.Invoke("Node was removed. See tags for details.",
unencryptedTags: new
{
nodeName = $"{node.Hostname}:{node.Port}",
openedConnectionsTotal = servicePointHttp.CurrentConnections + servicePointHttps.CurrentConnections
});
});
}
}
SetReachableNodes();
_lastDiscoveredNodes = sourceNodes;
}
}
catch (Exception ex)
{
LastException = ex;
}
}