Wcf TimeoutException - c#

I create WCF application that used Azure Cloud Service.
Sometimes client catch TimeoutException About 3 times a day.
Now, Total of client amounts about 100 clients.So The 100 cleint access wcf server at the same time.
The setting is below.How do I optimize? or Do I mistake?
WorkerRols.cs
ServicePointManager.DefaultConnectionLimit = Int32.MaxValue;
var netTcpBinding = new NetTcpBinding();
netTcpBinding.Security.Mode = SecurityMode.Transport;
netTcpBinding.Security.Transport.ClientCredentialType = TcpClientCredentialType.None;
netTcpBinding.MaxBufferPoolSize = 314572800;
netTcpBinding.MaxReceivedMessageSize = 20971520;
netTcpBinding.MaxBufferSize = 20971520;
netTcpBinding.ListenBacklog = 2147483647;
netTcpBinding.MaxConnections = 2147483647;
netTcpBinding.ReceiveTimeout = new TimeSpan(0, 1, 0);
//binding.SendTimeout = new TimeSpan(0, 3, 0);
//binding.CloseTimeout = new TimeSpan(0, 3, 0);
netTcpBinding.ReliableSession.Enabled = true;
netTcpBinding.ReliableSession.InactivityTimeout = new TimeSpan(0, 1, 0);
ServiceThrottlingBehavior throttle;
throttle = host.Description.Behaviors.Find<ServiceThrottlingBehavior>();
if (throttle == null)
{
LogWriter.PutInfo(CLASSNAME, "throttle == null");
throttle = new ServiceThrottlingBehavior();
throttle.MaxConcurrentCalls = Int32.MaxValue;
throttle.MaxConcurrentSessions = Int32.MaxValue;
throttle.MaxConcurrentInstances = Int32.MaxValue;
host.Description.Behaviors.Add(throttle);
}
app.config
<system.net>
<connectionManagement>
<add address="*" maxconnection="65535"/>
</connectionManagement>
</system.net>

Related

Set ServiceBehaviorAttribute in WCF Client?

I need to set by code the parameter
ServiceBehaviorAttribute
private static BasicHttpBinding getBinding()//BasicHttpBinding getBinding()
{
//WSHttpBinding binding = new WSHttpBinding();
//WSHttpBinding binding = new WSHttpBinding();
BasicHttpBinding binding = new BasicHttpBinding(BasicHttpSecurityMode.None);
binding.TextEncoding = System.Text.Encoding.UTF8;
binding.ReaderQuotas.MaxArrayLength = int.MaxValue;
binding.ReceiveTimeout = new TimeSpan(8, 0, 0);
binding.SendTimeout = new TimeSpan(8, 0, 0);
binding.MaxReceivedMessageSize = int.MaxValue;
binding.MaxBufferSize = int.MaxValue;
binding.MaxBufferPoolSize = int.MaxValue;
binding.ReaderQuotas.MaxDepth = 64;
binding.ReaderQuotas.MaxArrayLength = int.MaxValue;
binding.ReaderQuotas.MaxStringContentLength = int.MaxValue;
return binding;
}
private static EndpointAddress getEndPoint()
{
EndpointAddress endPoint = new EndpointAddress(HTTP_SERVER);
return endPoint;
}
ConnectionToServer = new ConnectionToServer (getBinding(), new EndpointAddress(HTTP_SERVER));
Hot to insert in the ConnectionToServer this code ???
ServiceBehaviorAttribute sba = new ServiceBehaviorAttribute();
sba.MaxItemsInObjectGraph = int.MaxValue;
One thing is the endpoint configuration (i.e. the code you posted) and another completely different thing is the service behavior.
To set SBA.MaxItemsInObjectGraph you need to specify it in the execution behavior of the service contract which is done via a ServiceBehaviorAttribute in the WCF Service (not the client as your code implies).
i.e:
[ServiceBehavior(
InstanceContextMode = InstanceContextMode.Single,
ConcurrencyMode = ConcurrencyMode.Reentrant,
MaxItemsInObjectGraph = 34)]
public class WcfService : IDuplexService
{
//service implementation goes here
}
Here's how you can set MaxItemsInObjectGraph on a ChannelFactory:
DuplexChannelFactory<IService> cf = new DuplexChannelFactory<IService>(typeof(ServiceCallback), Server.ServerBinding(), ep);
foreach (OperationDescription operation in cf.Endpoint.Contract.Operations)
{
var dc = operation.Behaviors.Find<DataContractSerializerOperationBehavior>();
if (dc != null)
{
dc.MaxItemsInObjectGraph = int.MaxValue;
}
}

Sharepoint 2010 GetListItems with Webservice - ListSoapClient with DefaultNetworkCredentials

I want to get some ListItems of a SharePoint 2010 List with a Win8 App. Everything works fine when I set the Credentials manually like:
BasicHttpBinding basicHttpBinding = new BasicHttpBinding();
basicHttpBinding.Security.Mode = BasicHttpSecurityMode.TransportCredentialOnly;
basicHttpBinding.Security.Transport.ClientCredentialType = HttpClientCredentialType.Windows;
EndpointAddress endpoint = new EndpointAddress("http://site1/site2/_vti_bin/Lists.asmx");
string listName = "{4e661b3b-d0a9-4440-b98f-3f3ef41a44a7}";
string viewName = "{f1ba8d46-ad36-40ef-b4bc-6f74ea87b5d7}";
string rowLimit = "25";
XElement ndQuery = new XElement("Query");
XElement ndViewFields = new XElement("ViewFields");
XElement ndQueryOptions = new XElement("QueryOptions");
MyService.ListsSoapClient client = new MyService.ListsSoapClient(basicHttpBinding, endpoint);
client.ClientCredentials.Windows.ClientCredential.UserName = "user";
client.ClientCredentials.Windows.ClientCredential.Password = "pw";
client.ClientCredentials.Windows.AllowedImpersonationLevel = System.Security.Principal.TokenImpersonationLevel.Impersonation;
MyService.GetListItemsResponse response = await client.GetListItemsAsync(listName, viewName, ndQuery, ndViewFields, rowLimit, ndQueryOptions, null);
If I try to set the Credentials with the logged on Windows user i get the following Unauthorized error:
The HTTP request is unauthorized with client authentication scheme
'Negotiate'. The authentication header received from the server was
'Negotiate,NTLM'.
client.ClientCredentials.Windows.ClientCredential = System.Net.CredentialCache.DefaultNetworkCredentials;
Can you help me?
try this (use default credentials instead of specific):
private ListsSoapClient CreateListsSoapClient(string siteUrl, string siteUserName, string sitePassword)
{
var basicHttpBinding = new BasicHttpBinding
{
CloseTimeout = new TimeSpan(00, 5, 00),
OpenTimeout = new TimeSpan(00, 5, 00),
ReceiveTimeout = new TimeSpan(00, 5, 00),
SendTimeout = new TimeSpan(00, 5, 00),
TextEncoding = Encoding.UTF8,
MaxReceivedMessageSize = int.MaxValue,
MaxBufferSize = int.MaxValue,
Security =
{
Mode = BasicHttpSecurityMode.TransportCredentialOnly
},
ReaderQuotas =
{
MaxArrayLength = int.MaxValue,
MaxBytesPerRead = int.MaxValue,
MaxStringContentLength = int.MaxValue
}
};
basicHttpBinding.Security.Transport.ClientCredentialType = HttpClientCredentialType.Ntlm;
var url = string.Format("{0}/_vti_bin/Lists.asmx", siteUrl);
var address = new EndpointAddress(url);
var listsSoapClient = new ListsSoapClient(basicHttpBinding, address);
listsSoapClient.ClientCredentials.Windows.AllowedImpersonationLevel = TokenImpersonationLevel.Delegation;
listsSoapClient.ChannelFactory.Credentials.Windows.ClientCredential = new NetworkCredential(siteUserName, sitePassword);
listsSoapClient.ChannelFactory.Credentials.Windows.AllowNtlm = true;
return listsSoapClient;
}

WCF nettcpbinding "send" timeout -- after all data was transmitted

I'm writing a local-machine client/server application using an application-hosted WCF service over nettcpbinding with a duplex channel (i.e., peer-to-peer communication). For legacy reasons, this is .NET 3.5.
This code sets up the server:
var netTcpBinding = new NetTcpBinding(SecurityMode.Transport);
netTcpBinding.Security.Transport.ClientCredentialType = TcpClientCredentialType.Windows;
netTcpBinding.Security.Transport.ProtectionLevel = ProtectionLevel.EncryptAndSign;
netTcpBinding.ReceiveTimeout = new TimeSpan(0, 0, 14);
netTcpBinding.SendTimeout = new TimeSpan(0, 0, 30);
netTcpBinding.OpenTimeout = new TimeSpan(0, 0, 30);
netTcpBinding.CloseTimeout = new TimeSpan(0, 0, 30);
netTcpBinding.ListenBacklog = 2;
netTcpBinding.MaxConnections = 200;
netTcpBinding.MaxBufferPoolSize = 10 * 1000 * 1000;
netTcpBinding.MaxBufferSize = 10* 1000 * 1000;
netTcpBinding.MaxReceivedMessageSize = 10* 1000 * 1000;
netTcpBinding.PortSharingEnabled = true;
netTcpBinding.ReliableSession.Enabled = true;
netTcpBinding.ReliableSession.Ordered = true;
netTcpBinding.ReliableSession.InactivityTimeout = new TimeSpan(23, 59, 59);
ISmartBrowserClientServiceCallback callback = new SmartBrowserClientServiceCallback();
InstanceContext context = new InstanceContext(callback);
smartBrowserServiceFactory = new DuplexChannelFactory<ClientService.ISmartBrowserClientService>(
context,
netTcpBinding,
new EndpointAddress(uri));
this.channel = this.smartBrowserServiceFactory.CreateChannel();
This code sets up the client:
var netTcpBinding = new NetTcpBinding(SecurityMode.Transport);
netTcpBinding.Security.Transport.ClientCredentialType = TcpClientCredentialType.Windows;
netTcpBinding.Security.Transport.ProtectionLevel = ProtectionLevel.EncryptAndSign;
netTcpBinding.ReceiveTimeout = new TimeSpan(23, 59, 59);
netTcpBinding.OpenTimeout = new TimeSpan(0, 0, 15); // timeout seconds are different to help debugging
netTcpBinding.SendTimeout = new TimeSpan(0, 0, 17);
netTcpBinding.ReceiveTimeout = new TimeSpan(0, 0, 19);
netTcpBinding.CloseTimeout = new TimeSpan(0, 0, 21);
netTcpBinding.ListenBacklog = 2;
netTcpBinding.MaxConnections = 100;
netTcpBinding.MaxBufferPoolSize = 10 * 1000 * 1000;
netTcpBinding.MaxBufferSize = 10 * 1000 * 1000;
netTcpBinding.MaxReceivedMessageSize = 10 * 1000 * 1000;
netTcpBinding.PortSharingEnabled = true;
netTcpBinding.ReliableSession.Enabled = true;
netTcpBinding.ReliableSession.Ordered = true;
netTcpBinding.ReliableSession.InactivityTimeout = new TimeSpan(23, 59, 59);
ISmartBrowserClientServiceCallback callback = new SmartBrowserClientServiceCallback(this.smartBrowserClient);
InstanceContext context = new InstanceContext(callback);
this.smartBrowserServiceFactory = new DuplexChannelFactory<ISmartBrowserClientService>(
context,
netTcpBinding,
new EndpointAddress(new Uri(string.Format(CultureInfo.InvariantCulture, "net.tcp://localhost:{0}/Cpy.SmartBrowser.SmartBrowserClientService/", defaultPort.ToString(CultureInfo.InvariantCulture)))));
this.smartBrowserServiceFactory.Faulted += (sender, e) =>
{
this.smartBrowserServiceFactory = null;
};
this.channel = this.smartBrowserServiceFactory.CreateChannel();
Now, when a client calls a service method with some data, that data is well received by the service, which acts upon it, but for some reason there's a TimeoutException on the sender after 17 seconds, the value I picked for the SendTimeout. I find this strange, because all data to send was already sent, instantly, and I see no reason for the system to wait for anything.
This client/server app will be used on a local machine with a single service and a single client, just peer-to-peer communicating. But if I can't get rid of this timeout, I'll have to work around it in a dirty way, which I want to avoid.
What obvious thing am I missing?

How to correctly set security for NetNamedPipe?

I have a WCF service with NetNamedPipe for interprocess communication and I would like to add security on it. Everything works great without security, but when I am trying to use tranport security I am getting "InvalidCredentialException: The server has rejected the client credentials" exception. Can you please help me?
Code sample:
var netPipeBinding = new NetNamedPipeBinding() { MaxReceivedMessageSize = 2147483647, SendTimeout = TimeSpan.FromMinutes(10), ReceiveTimeout = TimeSpan.FromMinutes(10) };
netPipeBinding.ReaderQuotas.MaxDepth = 2147483647;
netPipeBinding.ReaderQuotas.MaxStringContentLength = 2147483647;
netPipeBinding.ReaderQuotas.MaxArrayLength = 2147483647;
netPipeBinding.ReaderQuotas.MaxBytesPerRead = 2147483647;
netPipeBinding.ReaderQuotas.MaxNameTableCharCount = 2147483647;
netPipeBinding.Security.Mode = NetNamedPipeSecurityMode.Transport;
netPipeBinding.Security.Transport.ProtectionLevel = ProtectionLevel.EncryptAndSign;
var host = new ServiceHost(typeof(MainService));
var netPipeEA = new EndpointAddress(new Uri("net.pipe://MyProject/ServerSide"));
var contractDescription = ContractDescription.GetContract(typeof (IMainService), typeof (MainService));
host.AddServiceEndpoint(new ServiceEndpoint(contractDescription, netPipeBinding, netPipeEA));
host.Opened += HostOnOpened;
host.Open();
...
...
private void HostOnOpened(object sender, EventArgs eventArgs)
{
var netPipeBinding = new NetNamedPipeBinding() { MaxReceivedMessageSize = 2147483647, SendTimeout = TimeSpan.FromMinutes(10), ReceiveTimeout = TimeSpan.FromMinutes(10) };
netPipeBinding.ReaderQuotas.MaxDepth = 2147483647;
netPipeBinding.ReaderQuotas.MaxStringContentLength = 2147483647;
netPipeBinding.ReaderQuotas.MaxArrayLength = 2147483647;
netPipeBinding.ReaderQuotas.MaxBytesPerRead = 2147483647;
netPipeBinding.ReaderQuotas.MaxNameTableCharCount = 2147483647;
netPipeBinding.Security.Mode = NetNamedPipeSecurityMode.Transport;
netPipeBinding.Security.Transport.ProtectionLevel = ProtectionLevel.EncryptAndSign;
DuplexChannelFactory<IMainService> channelFactory = new DuplexChannelFactory<IMainService>(new InstanceContext(new CalbackHandler()), netPipeBinding,
new EndpointAddress(IMainService));
var proxy = channelFactory.CreateChannel();
proxy.DoPing();
}
Thank you
The machine name, in this case "localhost" because you are using named pipe should be defined in the EndpointAddress URI.

WCF Server Connect to the client Automatically When Connection was aborted

I am using WCF service in my WindowsApplication... when i was running the application both server and client, The server disconnected the connetion in few minutes.... How shall i reconnect the client automatically When Connection was aborted....
This is my Client code:
public void connecttoserver()
{
D:
try
{
EndpointAddress ea = new EndpointAddress(#"net.tcp://10.0.3.33:2222/ClsPCMain");
EndpointAddress ea = new EndpointAddress(StrAddress);
NetTcpBinding binding = new NetTcpBinding(SecurityMode.None, false);
binding.MaxBufferPoolSize = Int32.MaxValue;
binding.MaxReceivedMessageSize = Int32.MaxValue;
binding.PortSharingEnabled = true;
binding.ReceiveTimeout = TimeSpan.MaxValue;
binding.SendTimeout = TimeSpan.MaxValue;
binding.OpenTimeout = TimeSpan.MaxValue;
binding.CloseTimeout = TimeSpan.MaxValue;
binding.MaxReceivedMessageSize = Int32.MaxValue;
binding.MaxBufferPoolSize = Int32.MaxValue;
binding.MaxConnections = Int16.MaxValue;
binding.ReaderQuotas.MaxArrayLength = Int32.MaxValue;
binding.ReaderQuotas.MaxBytesPerRead = Int32.MaxValue;
binding.ReaderQuotas.MaxDepth = Int32.MaxValue;
binding.ReaderQuotas.MaxNameTableCharCount = Int32.MaxValue;
binding.ReaderQuotas.MaxStringContentLength = Int32.MaxValue;
binding.Security.Mode = SecurityMode.None;
ChannelFactory<InterfaceClass.IService> Client = new ChannelFactory<InterfaceClass.IService>(binding,ea);
InterfaceClass.IService serviceobj = Client.CreateChannel(ea);
clsStatus.connectstatus = false;
ClsPC objclsPc = serviceobj.PCInfoMethod(Environment.UserName, Environment.UserDomainName, Dns.GetHostName(), Dns.GetHostEntry(Dns.GetHostName()).AddressList[0].ToString());
if (objclsPc.imageid == 1)
{
clsStatus.FullSizeImage = true;
clsStatus.ThumbnailImage = false;
}
else
{
clsStatus.ThumbnailImage = true;
clsStatus.FullSizeImage = false;
}
Client.Close();
Client=null;
//serviceobj = null;
}
catch (Exception ex)
{
logobj.Write(ex);
}
}
This Is My Server Code:
public clsHostService()
{
string StrAddress = File.ReadAllText(AppDomain.CurrentDomain.BaseDirectory + "url2.txt");
ServiceHost host = new ServiceHost(typeof(clsService));
NetTcpBinding binding = new NetTcpBinding(SecurityMode.None, false);
ServiceEndpoint endpointinfo = host.AddServiceEndpoint(typeof(IService), binding, StrAddress);
endpointinfo.Binding.CloseTimeout = TimeSpan.MaxValue;
endpointinfo.Binding.OpenTimeout = TimeSpan.MaxValue;
endpointinfo.Binding.ReceiveTimeout = TimeSpan.MaxValue;
endpointinfo.Binding.SendTimeout = TimeSpan.MaxValue;
XmlDictionaryReaderQuotas BindingQuota = binding.ReaderQuotas;
BindingQuota.MaxArrayLength = Int32.MaxValue;
BindingQuota.MaxBytesPerRead = Int32.MaxValue;
BindingQuota.MaxDepth = Int32.MaxValue;
binding.MaxConnections = Int16.MaxValue;
binding.MaxBufferPoolSize = Int32.MaxValue;
binding.MaxBufferSize = Int32.MaxValue;
binding.MaxReceivedMessageSize = Int32.MaxValue;
binding.CloseTimeout = TimeSpan.MaxValue;
binding.OpenTimeout = TimeSpan.MaxValue;
binding.ReceiveTimeout = TimeSpan.MaxValue;
binding.SendTimeout = TimeSpan.MaxValue;
ServiceThrottlingBehavior throttlingBehavior =new ServiceThrottlingBehavior();
throttlingBehavior.MaxConcurrentCalls = Int32.MaxValue;
throttlingBehavior.MaxConcurrentInstances = Int32.MaxValue;
throttlingBehavior.MaxConcurrentSessions = Int32.MaxValue;
host.Description.Behaviors.Add(throttlingBehavior);
host.Open();
Console.WriteLine("Server Started");
Console.ReadLine();
}
Now How Shall i Connect to the client Automatically When server cuts the Connection?
Anyone Tell me The Solution of this Problem...
Thanks in Advance.....
I use something like this:
//Somewhere in the main
ConfigureWcf();
ConnectToServer();
//...
void ConnectToServer()
{
myService = new ServiceReference.ServiceClient(context);
myService.Open();
myService.InnerChannel.UnknownMessageReceived += InnerChannel_UnknownMessageReceived;
myService.InnerChannel.Closed += InnerChannel_Closed;
}
void StartConnecting()
{
//use 5 attempts to connect to server
ConnectToServer();
}
void InnerChannel_Closing(object sender, EventArgs e)
{
//Connection to server closed!
//Write to log
StartConnecting();
}
I don't completely understand your question, I'm afraid - your Winforms app is hosting the service, or is it the client calling a WCF service??
WCF doesn't typically use the concept of having a constant connection between client and server.
The client builds a client-side proxy on which is calls methods that the server exposes. Basically, each call is independant of all the others - a connection only exists between the client and the server for the duration of the call. The connection isn't always up - it's only in place when a call is actually happening.
So I don't completely understand what you want to "reconnect" - there is not always-on connection in the first place.
What can happen is that if an exception happens on the server side and isn't caught and handled properly, then the client-side proxy can become invalid. In WCF terms, the "channel" between the client and the server has been "faulted" , e.g. has become unusable. If you were to call the server again with a client-side proxy in a faulted state, you'd receive a client-side exception.
You can check for a faulted channel state on the client-side proxy before making a call with this code:
if(client.State == CommunicationState.Faulted)
{
client = new YourServiceClient();
}
if the channel is indeed faulted, then you need to re-create the proxy again and you should be back in business.

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