Jason Clark's Blog - All Comments

re: WCF Streaming Issue Under IIS

Haripraghash — Wed, 30 Sep 2009 16:38:40 GMT

Hi Jason,

Does this work?I am confused as the default service constructor will never be called until we implement an IInstanceprovider!

re: WCF Streaming Issue Under IIS

danang — Wed, 12 Aug 2009 09:59:06 GMT

Hi,

I have tried to implement your solution. but it seems that the streaming is still not working.

Do you have an example application for this?

Thanks.

re: File or assembly name or one of its dependencies not found?

K.B.H — Tue, 30 Jun 2009 15:04:58 GMT

From your error either the file nwyqbbug.dll is a third party dll, you are using within your code or a class library dll you created and you are calling within your project. If one of the above, then generally to solve this is to copy the dll into the bin folder Appbase=file:///D:/wwwroot/Forums/Web/Forum/bin

re: WCF Streaming Issue Under IIS

Madhu — Mon, 29 Jun 2009 14:16:31 GMT

Hi Jason, Your post is similar to issues we have been encountering with our WCF web service. The client is however, Windows 2003 + IIS 6.0. TransferMode is streamed.

So we have a web page that lists links to PDFs. Each link invokes the web service that streams back the PDF files.

The PDF files are between 30KB - 1.2 MB.

The first few calls work just fine. Subsequently however, we stop receiving a response and IIS indicates a "Buffer Overflow". Closing the window and re-trying another link starts the delivery again for the next few links.

Is the temporary cache mentioned in C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\MyWCFProject\b1a1a32e\6d915d8a\uploads

used for all web users. Please note that this website is a secure extranet used for a lot of users.

I can send the client and service code if reqed. A quick response is very much appreciated.

re: WCF Streaming Issue Under IIS

Sepp Renfer — Tue, 05 May 2009 15:22:00 GMT

Hi Jason, I have problems by hosting my WCF-Service under IIS.

If I change the transferMode on the Client Side, from "Buffered" to "Streamed", I always get a curiouse Exception:

The remote server returned an unexpected response: (400) Bad Request.

If I host my Service in a other host, everything works fine.

Could you send me a running Solution of a Streamed WCF Service hosted in IIS? If You want I can send you my Solution...

Thanks Sepp

re: Wierd windows forms ListView Issue, bug in .NET?

Ken — Wed, 25 Feb 2009 05:44:34 GMT

This may occur if the form is closed and then the background thread starts an update.

You may get a related error if the background thread starts to update the listview before the handle for the form has been created (i.e. a very short time after the form's constructor runs). To prevent this, ensure the handle is created in the form's constructor by referencing it:

IntPtr x = this.Handle; // this is sufficient.

re: A lesson learned about concurrent calls and WCF binding config.

jagadish — Sat, 14 Feb 2009 11:55:28 GMT

remove listenBacklog="100" and keep it as 10

and maxConnections="1000" set it as 10 .

and try to increase connections and listen backlogs in client config file.

re: WCF Streaming Issue Under IIS

atconway — Thu, 05 Feb 2009 17:00:21 GMT

As a follow up to my earlier post, I ended up hosting the WCF service in a Windows Service, but it still communicates via HTTP, so I got the best of both worlds. By hosting in a Windows Service I did not have to be bound by the 2GB IIS limitation. For security, I applied a SSL certificate to the Windows Service on the port the service communicates on. I streamed a 13GB file across servers in about 5 minutes.

re: File or assembly name or one of its dependencies not found?

Grady Werner — Wed, 14 Jan 2009 17:17:02 GMT

Correction to the smartertools KB link above about this error:

www.smartertools.com/.../troubleshooting-file-assembly-name-xxxxxxdll-one-its.aspx

re: WCF Streaming Issue Under IIS

Yatendra — Wed, 14 Jan 2009 13:44:07 GMT

Thanks

It's a simple and elegant description for a HTTPContext in WCF.