I've been looking for a solution the whole day but couldn't find any information about the malfunction I have.
I'm connecting to a java webservice (wsdl ver. 1) with my c# application using a basichttpbinding. If connected, everything works fine absolutely stable and without any errors. But sometimes connecting is a big deal. My application hangs completely until it runs into a TimeoutException. Only after this happend I'm able to create as much connections as I want. But if I wait after a successful connection for something like 1 minute, the connections doesn't work - no matter how much I try. Only if I allow my application to run into a timeout it works again.
What's weird: If I wait for the timeoutException and continue my code by hitting F5 the connections work as if there's never been an exception and the expected data is beeing received?!
Strange thing is - no matter what timeout I set up: The timeout exception will always occur after round about 1 minutes but says, that the timeout exception was raised after the configured timeout value (e.g. 5s if I set I timeout of 5s).
Another thing is: If I can successfully connect, wireshark lists some TCP commands between client and server and then shows a lot of http commands. If the server connections hangs, there isn't even an tcp command that should have been sent from the client to the server. So it's understandable, that there's no response if there's no request.
For me it seems like my tcp socked is locked for some reason and will only work again, if the timeout occurs and "frees" some sockets?!
Why is there no code? Honestly: I have no idea where I should look for the problem. It's no question of the basichttpbinding and thus I suppose it would pretty mess up this post without any additional information given. Also it's a whole load of code :)
So If you have any hint on where I should look for the failure, please help me :)
UPDATE 1 Here's the code reduced to a minimum. First call is UpdateBinding, second call is Connect.
public class ClientSettings
{
public System.ServiceModel.EndpointAddress Address { get; set; }
public TimeSpan CloseTimeout { get; set; } = new TimeSpan(0, 0, 10);
public TimeSpan OpenTimeout { get; set; } = new TimeSpan(0, 0, 10);
public TimeSpan SendTimeout { get; set; } = new TimeSpan(0, 0, 5);
public void UpdateBinding() {
Binding = new System.ServiceModel.BasicHttpBinding();
Address = new System.ServiceModel.EndpointAddress
(
"http://" + Physicals.IPAdress + ":" + Physicals.Port + Physicals.SubDir
);
Binding.Name = "SoapBinding";
Binding.CloseTimeout = CloseTimeout;
Binding.OpenTimeout = OpenTimeout;
Binding.SendTimeout = SendTimeout;
Binding.MessageEncoding = System.ServiceModel.WSMessageEncoding.Mtom;
Binding.AllowCookies = false;
Binding.BypassProxyOnLocal = false;
Binding.HostNameComparisonMode = System.ServiceModel.HostNameComparisonMode.StrongWildcard;
Binding.MaxBufferSize = Int32.MaxValue;
Binding.MaxBufferPoolSize = Int16.MaxValue;
Binding.MaxReceivedMessageSize = Int32.MaxValue;
Binding.TextEncoding = System.Text.Encoding.UTF8;
Binding.TransferMode = System.ServiceModel.TransferMode.Buffered;
Binding.UseDefaultWebProxy = true;
System.Xml.XmlDictionaryReaderQuotas _readerquotas = new System.Xml.XmlDictionaryReaderQuotas();
_readerquotas.MaxDepth = Int32.MaxValue;
_readerquotas.MaxStringContentLength = Int32.MaxValue;
_readerquotas.MaxArrayLength = Int32.MaxValue;
_readerquotas.MaxBytesPerRead = Int32.MaxValue;
_readerquotas.MaxNameTableCharCount = Int32.MaxValue;
Binding.ReaderQuotas = _readerquotas;
Binding.Security.Mode = System.ServiceModel.BasicHttpSecurityMode.None;
Binding.Security.Transport.ClientCredentialType = System.ServiceModel.HttpClientCredentialType.None;
Binding.Security.Transport.ProxyCredentialType = System.ServiceModel.HttpProxyCredentialType.None;
Binding.Security.Transport.Realm = "";
Binding.Security.Message.ClientCredentialType = System.ServiceModel.BasicHttpMessageCredentialType.UserName;
Binding.Security.Message.AlgorithmSuite = System.ServiceModel.Security.SecurityAlgorithmSuite.Default;
bindingIsValid = true;
}
}
public class ClientObject : ClientSettings, IDisposable
{
public ImageServerClient Client { get; set; }
public Generic.OMS4SystemInfo SystemInfo { get; set; }
public System.ServiceModel.CommunicationState EndPointCommunicationState
{
get
{
return Client.State;
}
}
public bool Connect()
{
if (bindingIsValid == false)
return false;
Client = new ImageServerClient(Binding, Address);
getSystemInfo();
return true;
}
public void Disconnect()
{
Client.Close();
}
public void Dispose()
{
this.Disconnect();
}
private void getSystemInfo()
{
systemInfo sInfo = new systemInfo();
sInfo = this.Client.getSystemInfo();
Generic.SystemInfo buffer = new Generic.SystemInfo();
buffer.BuildDate = sInfo.buildDate;
buffer.JavaRuntimeVersion = sInfo.javaRuntimeVersion;
buffer.SoftwareVersion = sInfo.softwareVersion;
buffer.SystemID = sInfo.systemID;
this.SystemInfo = buffer;
}
}
The TimeoutException is raised in the line
sInfo = this.Client.getSystemInfo();
UPDATE 2 I've done a lot of testing. It is def. no question of the server. It is also no question of the network hardware. I've changed everything but the problem persits.
No one an idea?
Update 3 Here's the complete error code and stack trace (sorry if my translation lacks some quality :)
Exception:
{"A timeout error occured after 00:00:15 while trying to send over the request channel. Increase the timeout limit of the \"Request\" invokation of increase the timeout limit for your binding. The timeout for this operation was possibly part of a longer timeout.}
Inner Exception:
{"The http-request at \"http://10.80.30.200:50000/SomeDataServer\" has exceeded the timeout limit of 00:00:00. The timeout for this operation was possibly part of a longer timeout.}
Server stack trace:
bei System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeSpan timeout)
bei System.ServiceModel.Dispatcher.RequestChannelBinder.Request(Message message, TimeSpan timeout)
bei System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
bei System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
bei System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
Exception rethrown at [0]:
bei System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
bei System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
bei SomeService.SomeDataServiceReference.ImageServer.getSystemInfo(getSystemInfo request)
bei SomeService.SomeDataServiceReference.ImageServerClient.SomeService.SomeDataServiceReference.ImageServer.getSystemInfo(getSystemInfo request) in C:\Users\userx\Documents\Visual Studio 2015\Projects\Some Interface Stand 05.11.2015\Common\SomeService\Service References\SomeDataServiceReference\Reference.cs:Zeile 1019.
bei SomeService.SomeDataServiceReference.ImageServerClient.getSystemInfo() in C:\Users\userx\Documents\Visual Studio 2015\Projects\Some Interface Stand 05.11.2015\Common\SomeService\Service References\SomeDataServiceReference\Reference.cs:Zeile 1024.
bei Driver.ClientObject.getSystemInfo() in C:\Users\userx\Documents\Visual Studio 2015\Projects\Spielwiese\Spielwiese\Interface neu.cs:Zeile 175.
bei Driver.ClientObject.Connect() in C:\Users\userx\Documents\Visual Studio 2015\Projects\Spielwiese\Spielwiese\Interface neu.cs:Zeile 150.
bei Spielwiese.OMS4DriverWrapper.Worker_DoWork(Object sender, DoWorkEventArgs e) in C:\Users\userx\Documents\Visual Studio 2015\Projects\Spielwiese\Spielwiese\Wrapper.cs:Zeile 88.
bei System.ComponentModel.BackgroundWorker.OnDoWork(DoWorkEventArgs e)
bei System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument)
