/// <summary>
/// Make list of nodes as per configuration.
/// When adding, a node's ip address is resolved via Dns.
/// </summary>
private IEnumerable <WmiNode> InitNodeList(IList <string> names)
{
var nodesList = new List <WmiNode>(names.Count);
var exclude = Current.Settings.Dashboard.ExcludePatternRegex;
foreach (var nodeName in names)
{
if (exclude?.IsMatch(nodeName) ?? false)
{
continue;
}
var node = new WmiNode(nodeName)
{
Config = _config,
DataProvider = this
};
try
{
var hostEntry = Dns.GetHostEntry(node.Name);
if (hostEntry.AddressList.Any())
{
node.Ip = hostEntry.AddressList[0].ToString();
node.Status = NodeStatus.Active;
}
else
{
node.Status = NodeStatus.Unreachable;
}
}
catch (Exception)
{
node.Status = NodeStatus.Unreachable;
}
var staticDataCache = ProviderCache(
() => node.PollNodeInfoAsync(),
_config.StaticDataTimeoutSeconds,
memberName: node.Name + "-Static");
node.Caches.Add(staticDataCache);
node.Caches.Add(ProviderCache(
() => node.PollStats(),
_config.DynamicDataTimeoutSeconds,
memberName: node.Name + "-Dynamic"));
//Force update static host data, incuding os info, volumes, interfaces.
Task.WaitAll(staticDataCache.PollAsync(true));
nodesList.Add(node);
}
return(nodesList);
}
/// <summary>
/// Make list of nodes as per configuration.
/// When adding, a node's IP address is resolved via DNS.
/// </summary>
/// <param name="nodeNames">The names of the server nodes to monitor.</param>
private IEnumerable <WmiNode> InitNodeList(IList <string> nodeNames)
{
var nodesList = new List <WmiNode>(nodeNames.Count);
var exclude = Current.Settings.Dashboard.ExcludePatternRegex;
foreach (var nodeName in nodeNames)
{
if (exclude?.IsMatch(nodeName) ?? false)
{
continue;
}
var node = new WmiNode(nodeName)
{
Config = _config,
DataProvider = this
};
try
{
var hostEntry = Dns.GetHostEntry(node.Name);
if (hostEntry.AddressList.Length > 0)
{
node.Ip = hostEntry.AddressList[0].ToString();
node.Status = NodeStatus.Active;
}
else
{
node.Status = NodeStatus.Unreachable;
}
}
catch (Exception)
{
node.Status = NodeStatus.Unreachable;
}
var staticDataCache = ProviderCache(
() => node.PollNodeInfoAsync(),
_config.StaticDataTimeoutSeconds.Seconds(),
memberName: node.Name + "-Static");
node.Caches.Add(staticDataCache);
var dynamicDataCache = ProviderCache(
() => node.PollStats(),
_config.DynamicDataTimeoutSeconds.Seconds(),
memberName: node.Name + "-Dynamic");
node.Caches.Add(dynamicDataCache);
nodesList.Add(node);
}
//// Force update static host data, incuding os info, volumes, interfaces.
//{
// var caches = staticDataCaches.ToArray();
// Task.WaitAll(caches);
//}
//// Force first dynamic polling of utilization.
//// This is needed because we use PerfRawData performance counters and we need this as a first starting point for our calculations.
//{
// var caches = dynamicDataCaches.ToArray();
// Task.WaitAll(caches);
//}
return(nodesList);
}