Windows Communication Foundation MSDN Forum Resources

NEW POST: Host on IIS

mk_bt — Fri, 16 Jan 2009 00:21:22 GMT

Hi Lars,

Not to worry I have been able to get streaming and chunking uploads hosted on IIS over http and https. If you or anyone else is interested I have posted some notes and code on the following link.

http://mark-csharp.blogspot.com/2009/01/wcf-file-transfer-streaming-chunking.html

../mark

NEW POST: Host on IIS

mk_bt — Sat, 03 Jan 2009 23:34:48 GMT

Hi Lars,

Please can you tell me how I can configure 'Chunking Channel' to run on IIS.

Kind Regards,
Mark

CREATED RELEASE: LarsW.ChunkingChannelEx-0.9 (Sep 16, 2008)

Tue, 16 Sep 2008 23:13:46 GMT

NEW POST: A few questions.

larsw — Tue, 16 Sep 2008 23:12:56 GMT

1) Is there a sweet spot for this value for transferring large files?

YMMV - It will depend on bandwidth, latency, size of the file(s) etc. - but I think the default value is small - and you should benchmark with higher values and check the difference. ( There is a CodePlex project called WCF Load Test here: http://www.codeplex.com/WCFLoadTest )

2) Same seems true for the ChunkingUtils.ChunkingReceiveTimeout value (3 minutes). Is this the total amount of time the client has to upload the entire file?

Yeah, I believe so - if you check out the ChannelsHelpers project in the solution, there's a TimeoutHelper that is used to accumulate / track the time used.

3) What sort of security does this binding support?

You chould easily create a nearly identical HTTPS version of the HTTP Chunking Channel by using the Https...-version of the underlying channel/transport classes.
In the new release (LarsW.ChunkingChannelEx-0.9) I've also included a NamedPipe version (in addition to the TCP & HTTP versions).

4) Both client and service need to reference the Chunking channel, correct? Implications of this is that this custom binding is not interoperable.

Yes, both sides must reference the ChunkingChannel assembly. In the next version I will try to create a WSDL / Policy importer / exporter so you can use the normal svcutil.exe / Visual Studio's Add Service reference functionality to wire up client proxies. Out of the box it is not interoperable - but it is built on-top of SOAP so there should be possible to create (for instance) a Java client/server that is interoperable.

--larsw

NEW POST: A few questions.

WillRogers — Mon, 15 Sep 2008 17:37:18 GMT

Fist of all thank you for posting this implementation and I wanted to let you know that it worked fine without any tweaks when I downloaded it.

The default chunk size seems a bit small (4K) when in my case I can expect to be transferring files larger than 1MB.

1) Is there a sweet spot for this value for transferring large files?
2) Same seems true for the ChunkingUtils.ChunkingReceiveTimeout value (3 minutes). Is this the total amount of time the client has to upload the entire file?
3) What sort of security does this binding support?
4) Both client and service need to reference the Chunking channel, correct? Implications of this is that this custom binding is not interoperable.

Thanks again,
Will.

CREATED RELEASE: HTTP Chunking Channel (sep 12, 2008)

Fri, 12 Sep 2008 23:56:49 GMT

CREATED RELEASE: Serve PDF as inline attachments Service (Jul 09, 2008)

Wed, 09 Jul 2008 22:59:18 GMT

RELEASED: Unity Container Service Behavior 1.0 (Jul 03, 2008)

Thu, 03 Jul 2008 12:35:31 GMT

CREATED RELEASE: Unity Container Service Behavior 1.0 (Jul 03, 2008)

Thu, 03 Jul 2008 12:35:31 GMT

UPDATED WIKI: Home

larsw — Mon, 09 Jun 2008 11:04:09 GMT

Resource Page Description
This resource page is intended as a examples as test code for the Windows Communication Foundation ("Indigo") MSDN Forum.