I've successfully got a few workflows going with Server AppFabric.
What i have noticed however is that when i try to use namePipeBinding to communicate with the workflow then the call works successfully for the client (the call is marked As IsOneWay=true in the interface definition for the service) but in the AppFabric dashboard i can see the message being processed successfully and then we get the call appearing as a 'Service Exception' with the following exception
System.ServiceModel.CommunicationException: There was an error reading from the pipe: The pipe has been ended. (109, 0x6d). ---> System.IO.IOException: The write operation failed, see inner exception. ---> System.ServiceModel.CommunicationException: There was an error reading from the pipe: The pipe has been ended. (109, 0x6d). ---> System.IO.PipeException: There was an error reading from the pipe: The pipe has been ended. (109, 0x6d).
at System.ServiceModel.Channels.PipeConnection.OnAsyncReadComplete(Boolean haveResult, Int32 error, Int32 numBytes)
--- End of inner exception stack trace ---
at System.Runtime.AsyncResult.End[TAsyncResult](IAsyncResult result)
at System.ServiceModel.Channels.ConnectionStream.ReadAsyncResult.End(IAsyncResult result)
at System.Net.FixedSizeReader.ReadCallback(IAsyncResult transportResult)
--- End of inner exception stack trace ---
at System.Net.Security.NegotiateStream.EndRead(IAsyncResult asyncResult)
at System.ServiceModel.Channels.StreamConnection.EndRead()
--- End of inner exception stack trace ---
at System.Runtime.AsyncResult.End[TAsyncResult](IAsyncResult result)
at System.ServiceModel.Channels.FramingDuplexSessionChannel.TryReceiveAsyncResult.End(IAsyncResult result, Message& message)
at System.ServiceModel.Dispatcher.DuplexChannelBinder.EndTryReceive(IAsyncResult result, RequestContext& requestContext)
at System.ServiceModel.Dispatcher.ErrorHandlingReceiver.EndTryReceive(IAsyncResult result, RequestContext& requestContext)
The workflow consists of two receive activities but it doesn't have any receiveandsendreply activitiies.
Everything works fine when i use http bindings.
Why is this error being reported in the dashboard?
Configuration details for the client app are shown below
<system.serviceModel>
<bindings>
<basicHttpBinding>
<binding name="BasicHttpBinding_ISLG" closeTimeout="00:01:00"
openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
maxBufferSize="65536" maxBufferPoolSize="524288" maxReceivedMessageSize="65536"
messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered"
useDefaultWebProxy="true">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
maxBytesPerRead="4096" maxNameTableCharCount="16384" />
<security mode="None">
<transport clientCredentialType="None" proxyCredentialType="None"
realm="" />
<message clientCredentialType="UserName" algorithmSuite="Default" />
</security>
</binding>
</basicHttpBinding>
<netNamedPipeBinding>
<binding name="NetNamedPipeBinding_ISLG" closeTimeout="00:01:00"
openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
transactionFlow="false" transferMode="Buffered" transactionProtocol="OleTransactions"
hostNameComparisonMode="StrongWildcard" maxBufferPoolSize="524288"
maxBufferSize="65536" maxConnections="10" maxReceivedMessageSize="65536">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
maxBytesPerRead="4096" maxNameTableCharCount="16384" />
<security mode="Transport">
<transport protectionLevel="EncryptAndSign"/>
</security>
</binding>
</netNamedPipeBinding>
</bindings>
<client>
<endpoint address="net.pipe://vm-vsnet2010/TestWorkflowDeclarativeServiceLibrary/Service3.xamlx"
binding="netNamedPipeBinding" bindingConfiguration="NetNamedPipeBinding_ISLG"
contract="SLGService.ISLG" name="NetNamedPipeBinding_ISLG">
<identity>
<servicePrincipalName value="host/VM-VSNET2010" />
</identity>
</endpoint>
</client>
</system.serviceModel>
Can you submit the server binding configuration? They may differ and that's why the server can't receive data from the pipe.
Regards
Related
I'm trying to create a LightSwitch management panel for a web-based app. Thats why I was setting up a WCF RIA service to interface with the WCF service of the web app. While testing the loading of the users, I discovered that LightSwitch said that it couldn't load the resource. The Immediate Window told me that a System.InvalidOperationException had occured within System.ServiceModel.dll but VS didnt actually point me towards the loc where the error would have originated. After some line for line code execution, I discovered it choked at the instantiation of the WCF proxy.
An example of the code on the WCF RIA service Class:
Public Class RIAInterface
Inherits DomainService
Private WCFProxy As New Service.UserClient() '<-- Choke Point
Public Sub New()
WCFProxy.Open()
End Sub
<Query(IsDefault:=True)>
Public Function GetUsers() As IQueryable(Of User)
Dim TempList As New List(Of User)
For Each User As Service.User In WCFProxy.GetUsers()
TempList.Add(New User With {.ID = User.ID, .FullName = User.FullName, .EmailAddress = User.Email, .Username = User.UserName, .Class = User.Class.Name, .AccountType = User.Privilege.Name})
Next
Return TempList.AsQueryable
End Function
End Class
After some fooling arround with the RIA service and LightSwitch, something changed. I ran the app and got an actual exception.
Exception Details:
Could not find endpoint element with name 'EduNetBackEnd_IUser' and contract 'EduNet.IUser' in the ServiceModel client configuration section. This might be because no configuration file was found for your application, or because no endpoint element matching this name could be found in the client element.
This is the the ServiceModel configuration in the App.config:
<system.serviceModel>
<bindings>
<wsHttpBinding>
<binding name="EduNetBackEnd_IUser" closeTimeout="00:01:00" openTimeout="00:01:00"
receiveTimeout="00:10:00" sendTimeout="00:01:00" bypassProxyOnLocal="false"
transactionFlow="false" hostNameComparisonMode="StrongWildcard"
maxBufferPoolSize="524288" maxReceivedMessageSize="65536"
messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true"
allowCookies="false">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
maxBytesPerRead="4096" maxNameTableCharCount="16384" />
<reliableSession ordered="true" inactivityTimeout="00:15:00"
enabled="true" />
<security mode="None">
<transport clientCredentialType="Windows" proxyCredentialType="None"
realm="" />
<message clientCredentialType="Windows" negotiateServiceCredential="true" />
</security>
</binding>
</wsHttpBinding>
</bindings>
<client>
<endpoint address="[Service_Address]"
binding="wsHttpBinding" bindingConfiguration="EduNetBackEnd_IUser"
contract="EduNet.IUser" name="EduNetBackEnd_IUser" />
</client>
</system.serviceModel>
I have a WPF program calling a WCF service. it all works fine on my PC but on a customer PC I get the following error.
[Footer][Header]2011-12-20 10:54:29,809 [5] WARN
Kern.Common.Logging.Logger - Error logging in - An exception occurred
during the operation, making the result invalid. Check InnerException
for exception details. 2011-12-20 10:54:29,928 [5] WARN
Kern.Common.Logging.Logger - Inner Exception -
System.TypeLoadException: Could not load type 'ChannelBase1' from
assembly 'System.ServiceModel, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=b77a5c561934e089'. at
KernMobile.Data.Server.KernMobileWcfService.KernServiceClient.CreateChannel()
at System.ServiceModel.ClientBase1.CreateChannelInternal() at
System.ServiceModel.ClientBase1.get_Channel() at
KernMobile.Data.Server.KernMobileWcfService.KernServiceClient.KernMobile.Data.Server.KernMobileWcfService.IKernService.BeginLogin(String
username, String password, AsyncCallback callback, Object asyncState)
at
KernMobile.Data.Server.KernMobileWcfService.KernServiceClient.OnBeginLogin(Object[]
inValues, AsyncCallback callback, Object asyncState) at
System.ServiceModel.ClientBase1.InvokeAsync(BeginOperationDelegate
beginOperationDelegate, Object[] inValues, EndOperationDelegate
endOperationDelegate, SendOrPostCallback operationCompletedCallback,
Object userState)
I turned on WCF tracing but there are no errors reported in the log file.
Here is the service config:
<system.serviceModel>
<bindings>
<basicHttpBinding>
<binding name="BasicHttpBinding_IKernService" closeTimeout="00:01:00"
openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
maxBufferSize="2147483647" maxBufferPoolSize="524288" maxReceivedMessageSize="2147483647"
messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered"
useDefaultWebProxy="true">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
maxBytesPerRead="4096" maxNameTableCharCount="16384" />
<security mode="None">
<transport clientCredentialType="None" proxyCredentialType="None"
realm="" />
<message clientCredentialType="UserName" algorithmSuite="Default" />
</security>
</binding>
</basicHttpBinding>
</bindings>
<client>
<endpoint address="http://localhost/Kern.Server.Service/KernService.svc"
binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IKernService"
contract="KernMobileWcfService.IKernService" name="BasicHttpBinding_IKernService" />
</client>
</system.serviceModel>
Any ideas?
Finally fixed this.
It was caused by using a portable library project as a wrapper for the WCF service reference.
This worked fine on most PCs but failed on a customers locked down hardware. I'm assuming some supporting DLL's were missing.
I changed changed over to a normal class library project and all worked.
Must be doing something awfully wrong here. Here is what I'm trying to do.
I have a Message handler that should get a message from the queue. Make a WCF call, do stuff and when done, send a new message out on the bus.
It is hosted in the NServiceBus.Host.Exe.
But, whenever I create the Service Client, eveything comes to a grinding halt. If I comment out the service call everything works great... Except, I need that call.
Is there a trick I must do to make WCF calls from my Message Handler when hosting it in the NServiceBus.Host.Exe? I have not made any special config in the EndPointConfig class.
public class EndpointConfig :
IConfigureThisEndpoint, AsA_Server { }
public class RequestAccountUpdateMessageHandler : IHandleMessages<RequestAccountUpdateMessage>
{
public void Handle(RequestAccountUpdateMessage message)
{
// The Line below hangs everything
AccountService.AccountServiceClient client =
new AccountService.AccountServiceClient();
resp = client.DoStuff(message.parameter);
Bus.Send<UpdateAccountMessage>(m =>
{
m.info = DoMagicStuffHere(resp);
});
}
...
}
This is what the system.serviceModel looks like in the App.Config
<system.serviceModel>
<bindings>
<basicHttpBinding>
<binding name="BasicHttpBinding_IAccountService" closeTimeout="00:01:00" openTimeout="00:01:00" receiveTimeout="00:01:00" sendTimeout="00:01:00" allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard" maxBufferSize="65536" maxBufferPoolSize="524288" maxReceivedMessageSize="65536" messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered" useDefaultWebProxy="false">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384" maxBytesPerRead="4096" maxNameTableCharCount="16384"/>
<security mode="None">
<transport clientCredentialType="None" proxyCredentialType="None" realm=""/>
<message clientCredentialType="UserName" algorithmSuite="Default"/>
</security>
</binding>
</basicHttpBinding>
</bindings>
<client>
<endpoint address="http://yadayafa/accountservice.svc" binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IAccountService" contract="AccountService.IAccountService" name="BasicHttpBinding_IAccountService"/>
</client>
</system.serviceModel>
We have a requirement to call a WCF service from another WCF Service. To test this I build a sample console application to display a simple string. The setup is:
Console App -> WCF Service 1 -> WCF Service 2
Console App calls a method of service 1 and the service 1 method eventually calls service 2 method to return a string. I am able to call Console -> Service 1 but Service 1 -> Service 2 is not working. It throws an exception:
"Could not find default endpoint element that references contract 'ITestService2' in the ServiceModel client configuration section. This might be because no configuration file was found for your application, or because no endpoint element matching this contract could be found in the client element."
To accomplish this, I have created a WCF Service 2 with one method that returns a string (nothing fancy).
namespace TestServices
{
[ServiceContract]
public interface ITestService2
{
[OperationContract]
string GetSomething(string s);
}
}
Then I create service1 - ITestService1.cs and TestService1.cs that consumes service2 method GetSomething().
namespace TestServices
{
[ServiceContract]
public interface ITestService1
{
[OperationContract]
string GetMessage(string s);
}
}
namespace TestServices
{
class TestService1 : ITestService1
{
public string GetMessage(string s)
{
TestService2 client = new TestService2();
return client.GetSomething("WELCOME " + s);
}
}
}
Note: I create a proxy for Service2 using svcutil.exe. It creates a app.config and TestService2.cs files that I copied in TestService1 project folder to reference.
Finally, I created the console app that just creates an instance of Service1 and calls the GetMessage() method.
static void Main(string[] args)
{
TestService1 client = new TestService1();
Console.WriteLine(client.GetMessage("Roger Harper"));
Console.ReadKey();
}
When I call the service 2 directly from Console application, it works without any issue. The same config and proxy class when copied with in service 1. It throws error. The config file looks like:
config file for service 1 in console application:
<configuration>
<system.serviceModel>
<bindings>
<wsHttpBinding>
<binding name="WSHttpBinding_ITestService1" closeTimeout="00:01:00"
openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard"
maxBufferPoolSize="524288" maxReceivedMessageSize="65536"
messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true"
allowCookies="false">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
maxBytesPerRead="4096" maxNameTableCharCount="16384" />
<reliableSession ordered="true" inactivityTimeout="00:10:00"
enabled="false" />
<security mode="Message">
<transport clientCredentialType="Windows" proxyCredentialType="None"
realm="" />
<message clientCredentialType="Windows" negotiateServiceCredential="true"
algorithmSuite="Default" establishSecurityContext="true" />
</security>
</binding>
</wsHttpBinding>
</bindings>
<client>
<endpoint address="http://localhost:3227/WCFTestSite/TestService1.svc"
binding="wsHttpBinding" bindingConfiguration="WSHttpBinding_ITestService1"
contract="ITestService1" name="WSHttpBinding_ITestService1">
<identity>
<dns value="localhost" />
</identity>
</endpoint>
</client>
</system.serviceModel>
</configuration>
config file for service 2 in service1 folder:
<configuration>
<system.serviceModel>
<bindings>
<wsHttpBinding>
<binding name="WSHttpBinding_ITestService2" closeTimeout="00:01:00"
openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard"
maxBufferPoolSize="524288" maxReceivedMessageSize="65536"
messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true"
allowCookies="false">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
maxBytesPerRead="4096" maxNameTableCharCount="16384" />
<reliableSession ordered="true" inactivityTimeout="00:10:00"
enabled="false" />
<security mode="Message">
<transport clientCredentialType="Windows" proxyCredentialType="None"
realm="" />
<message clientCredentialType="Windows" negotiateServiceCredential="true"
algorithmSuite="Default" establishSecurityContext="true" />
</security>
</binding>
</wsHttpBinding>
</bindings>
<client>
<endpoint address="http://localhost:3227/WCFTestSite/TestService2.svc"
binding="wsHttpBinding" bindingConfiguration="WSHttpBinding_ISriWCFTestService2"
contract="ITestService2" name="WSHttpBinding_ITestService2">
<identity>
<dns value="localhost" />
</identity>
</endpoint>
</client>
</system.serviceModel>
</configuration>
Appreciate if someone can help me in resolving this issue. I also tried prefixing the contract name with namespace but it didn't work. Not sure how the same config/proxy works directly from console and not with in another service. Please HELP!!! Thanks in advance.
From my understating you have a console app that is self hosting a wcf service that service is calling a second wcf service. I am guessing you have a wcf service1 defined in dll that the console app loads and then attempts to call. I think your issue may be that sice service 1 is in a dll its not loading the config file where you have defined the link to service 2. Try creating the endpoint programmaticly and see if that gets you thorough the issue.
We have a WCF Service deployed on Windows Server 2003 that handles file transfers. When file is in Unix format, I am converting it to Dos format in the initialization stage using System.Diagnostics.Process (.WaitForExit()). Client calls the service:
obj_DataSenderService = New DataSendClient()
obj_DataSenderService.InnerChannel.OperationTimeout = New TimeSpan(0, System.Configuration.ConfigurationManager.AppSettings("DatasenderServiceOperationTimeout"), 0)
str_DataSenderGUID = obj_DataSenderService.Initialize(xe_InitDetails.GetXMLNode)
This works fine, however for large files the conversion takes more than 10 minutes and I am getting exception:
A first chance exception of type
'System.ServiceModel.CommunicationException'
occurred in mscorlib.dll
Additional information: The socket
connection was aborted. This could be
caused by an error processing your
message or a receive timeout being
exceeded by the remote host, or an
underlying network resource issue.
Local socket timeout was
'00:59:59.8749992'.
I tried configuring both client:
<system.serviceModel>
<bindings>
<netTcpBinding>
<binding name="NetTcpBinding_IDataSend" closeTimeout="01:00:00"
openTimeout="01:00:00" receiveTimeout="01:00:00" sendTimeout="01:00:00"
transactionFlow="false" transferMode="Buffered" transactionProtocol="OleTransactions"
hostNameComparisonMode="StrongWildcard" listenBacklog="10"
maxBufferPoolSize="524288" maxBufferSize="65536" maxConnections="10"
maxReceivedMessageSize="65536">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
maxBytesPerRead="4096" maxNameTableCharCount="16384" />
<reliableSession ordered="true" inactivityTimeout="00:10:00"
enabled="false" />
<security mode="None">
<transport clientCredentialType="Windows" protectionLevel="EncryptAndSign" />
<message clientCredentialType="Windows" />
</security>
</binding>
</netTcpBinding>
</bindings>
<client>
<endpoint address="net.tcp://localhost:4000/DataSenderEndPoint"
binding="netTcpBinding" bindingConfiguration="NetTcpBinding_IDataSend"
contract="IDataSend" name="NetTcpBinding_IDataSend">
<identity>
<servicePrincipalName value="host/localhost" />
<!--<servicePrincipalName value="host/axopwrapp01.Corp.Acxiom.net" />-->
</identity>
</endpoint>
</client>
</system.serviceModel>
And service:
<system.serviceModel>
<bindings>
<netTcpBinding>
<binding name="NetTcpBinding_IDataSend" closeTimeout="01:00:00"
openTimeout="01:00:00" receiveTimeout="01:00:00" sendTimeout="01:00:00"
transactionFlow="false" transferMode="Buffered" transactionProtocol="OleTransactions"
hostNameComparisonMode="StrongWildcard" listenBacklog="10"
maxBufferPoolSize="524288" maxBufferSize="65536" maxConnections="10"
maxReceivedMessageSize="65536">
</binding>
</netTcpBinding>
</bindings>
</system.serviceModel>
but without luck. In the Service trace viewer I can see:
Close process timed out waiting for service dispatch to complete.
with stack trace:
System.ServiceModel.ServiceChannelManager.CloseInput(TimeSpan
timeout)
System.ServiceModel.Dispatcher.InstanceContextManager.CloseInput(TimeSpan
timeout)
System.ServiceModel.ServiceHostBase.OnClose(TimeSpan
timeout)
System.ServiceModel.Channels.CommunicationObject.Close(TimeSpan
timeout)
System.ServiceModel.Channels.CommunicationObject.Close()
DataSenderService.DataSender.OnStop()
System.ServiceProcess.ServiceBase.DeferredStop()
System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr
md, Object[] args, Object server,
Int32 methodPtr, Boolean
fExecuteInContext, Object[]&
outArgs)
System.Runtime.Remoting.Messaging.StackBuilderSink.PrivateProcessMessage(RuntimeMethodHandle
md, Object[] args, Object server,
Int32 methodPtr, Boolean
fExecuteInContext, Object[]&
outArgs)
System.Runtime.Remoting.Messaging.StackBuilderSink.AsyncProcessMessage(IMessage
msg, IMessageSink replySink)
System.Runtime.Remoting.Proxies.AgileAsyncWorkerItem.DoAsyncCall()
System.Runtime.Remoting.Proxies.AgileAsyncWorkerItem.ThreadPoolCallBack(Object
o)
System.Threading._ThreadPoolWaitCallback.WaitCallback_Context(Object
state)
System.Threading.ExecutionContext.runTryCode(Object
userData)
System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode
code, CleanupCode backoutCode, Object
userData)
System.Threading.ExecutionContext.RunInternal(ExecutionContext
executionContext, ContextCallback
callback, Object state)
System.Threading.ExecutionContext.Run(ExecutionContext
executionContext, ContextCallback
callback, Object state)
System.Threading._ThreadPoolWaitCallback.PerformWaitCallbackInternal(_ThreadPoolWaitCallback
tpWaitCallBack)
System.Threading._ThreadPoolWaitCallback.PerformWaitCallback(Object
state)
Many thanks
Bartek
Does your WCF service actually return the file contents? If so, perhaps you should use WCF's capability for streaming, and change the line endings from Unix to DOS style as you stream it, rather than processing the file and then returning it as you are currently doing. Read in each line, and then stream it out with the correct line ending.