Clemens Vasters.

Tales from the land of cloud computing. From, well, how shall I say - up here?

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  • Blog Post: Windows Azure AppFabric October 2010 CTP - Service Bus Samples from my PDC Talk (Part 1)

    In my PDC talk I’m showing a few little samples that are not in the SDK for the CTP release . I’ve bundled them up and they’re attached to this post. The solution contains three samples: SBMT is the ‘Service Bus Management Tool’, a small command line utility to create/view/delete ConnectionPoints...
  • Blog Post: PDC10 Windows Azure AppFabric - Service Bus Futures

    My PDC10 session is available online (it was pre-recorded). I talk about the new ‘Labs’ release that we released into the datacenter this week and about a range of future capabilities that we’re planning for Service Bus. Some of those future capabilities that are a bit further out are about bringing...
  • Blog Post: Windows Azure AppFabric Datacenter IP ranges

    We know that there’s a number of you out there who have outbound firewall rules in place on your corporate infrastructures that are based on IP address whitelisting. So if you want to make Service Bus or Access Control work, you need to know where our services reside. Below is the current list of where...
  • Blog Post: Blobber– A trivial little tool for uploading/listing/deleting Windows Azure Blob Storage files

    There must be dozens of these things, but I didn’t find one online last week and I needed a tool like this to prep a part of my keynote demo in Poland last week – and thus I wrote one. It’s a simple file management utility that works with the Windows Azure Blob store. No whistles, no bells, 344 lines...
  • Blog Post: Cloud Architecture: The Scheduler-Agent-Supervisor Pattern

    As our team was starting to transform our parts of the Azure Services Platform from a CTP ‘labs’ service exploring features into a full-on commercial service, it started to dawn on us that we had set ourselves up for writing a bunch of ‘enterprise apps’. The shiny parts of Service Bus and Access Control...
  • Blog Post: Programming WCF Services, Third Edition

    Juval Löwy’s very successful WCF book is now available in its third edition – and Juval asked me to update the foreword this time around. It’s been over three years since I wrote the foreword to the first edition and thus it was time for an update since WCF has moved on quite a bit and the use of it...
  • Blog Post: Windows Azure AppFabric Overview session from TechEd Australia 2010

    In case you need a refresher or update about the things me and our team work on at Microsoft, go here for a very recent and very good presentation by my PM colleague Maggie Myslinska from TechEd Australia 2010 about Windows Azure AppFabric with Service Bus demos and a demo of the new Access Control V2...
  • Blog Post: TechEd: ASI204 Windows Azure Platform AppFabric Overview

    Room 398, Tuesday June 8 3:15pm-4:30pm Session Type: Breakout Session Track: Application Server & Infrastructure Speaker(s): Maggie Myslinska Level: 200 – Intermediate Come learn how to use Windows Azure AppFabric (with Service Bus and Access Control) as building block services for Web-based and...
  • Blog Post: TechEd: ASI302 Design Patterns, Practices, and Techniques with the Service Bus in Windows Azure AppFabric

    Room 265, Thursday June 10 9:45AM – 11:00 AM Session Type: Breakout Session Track: Application Server & Infrastructure Speaker(s): Clemens Vasters, Juval Lowy Level: 300 - Advanced The availability of the Service Bus in Windows Azure AppFabric is disruptive since it enables new design and deployment...
  • Blog Post: NT Konferenca 2010 - Windows Azure Slidedecks

    I put the slides for my talks at NT Konferenca 2010 on SkyDrive . The major difference from my APAC slides is that I had to put compute and storage into one deck due to the conference schedule, but instead of purely consolidating and cutting down the slide count, I also incorporated some common patterns...
  • Blog Post: Windows Azure Speaking Tour Slides

    I'm on a tour through several countries right now and I'm talking to ISVs about the Windows Azure platform, its capabilities and the many opportunities ISVs have to transform the way they do business by moving to the cloud. The first day of the events is an introduction to the platform at the capability...
  • Blog Post: Hosting Service Bus endpoints in IIS and Server AppFabric (Dublin)

    My office neighbor, our Service Bus Test Lead Vishal Chowdhary put together a bundle of code and documentation for how to use Service Bus with Server AppFabric and IIS 7.5. Here: http://code.msdn.microsoft.com/ServiceBusDublinIIS
  • Blog Post: UA 875 SEA NRT

    It’s not a revival of my career as a traveling talking head, but it sure feels a bit like old days. I’m on United 875 from Seattle to Tokyo/Narita right now, somewhere above the North Pacific. A few hours more to go and then I’ll be connecting to Singapore and I’m guessing that I’ll be at my hotel sometime...
  • Blog Post: .NET Services March 2009 CTP - Service Bus Routers and Queues - Part 5: The Queue API for the rest of us

    In Parts 3 and 4 of this series I’ve explained the REST protocol for the .NET Service Bus Queue capability. If that looked a little too complicated for your taste and you’d rather clean with a simple API surface, here’s the API that you’ll prefer. We’ve got two simple classes in the SDK (in the Microsoft...
  • Blog Post: .NET Services March 2009 CTP - Service Bus Routers and Queues - Part 4: The REST Queue Protocol in Code Snippets

    After I’ve gone through the dry facts of the REST Queue Protocol in Part 3 of this series , here’s some code to look at. The code snippets are ripped from the HTTP Queue sample we’ve got in the .NET Services SDK and you can get the copy/paste ready code from there. The most straightforward way to...
  • Blog Post: The .NET Service Bus REST protocol for Queues - Some comments, some answers

    Stefan Tilkov has several interesting remarks regarding our .NET Service Bus REST Queue Protocol that are worth addressing. Putting a password in the URI to get an identity token seems to expose information unnecessarily That’s an area where we know that we’re going to change the protocol. We’ve...
  • Blog Post: .NET Services March 2009 CTP: Host a Public Website At The Kitchen Table or from a Coffee Shop! No Kidding.

    .NET Service Bus Reverse Web Proxy: Click here to download the source Using the application/service built from the sample linked at the top of this post you can host a publicly discoverable and accessible website or Web service from your Windows notebook or desktop machine from within most network...
  • Blog Post: How do I use the .NET Services "December 2008" CTP SDK with the "March 2009" CTP Services?

    Short answer: You can’t. There is a range of breaking protocol changes between the December bits and the March bits. Your app won’t work until you upgrade (uninstall/install) to the March 2009 CTP client bits and/or SDK .
  • Blog Post: .NET Services March 2009 CTP - Service Bus Routers And Queues - Part 3: The REST Queue Protocol

    [If this text looks vaguely familiar you’ve read the HttpQueueSample Readme doc from the SDK. Good job!] Here is the Service Bus Queue REST protocol. I apologize if this is a bit dry, but I want to give you the bare protocol facts first and will follow-up with code samples later. Look at the HTTP...
  • Blog Post: .NET Services March 2009 CTP - Service Bus Routers And Queues - Part 2: Queue Policies

    In the previous post in this series I’ve discussed some of the foundational principles of the new Queue and Router features of the .NET Services Bus and the role that policies play in turning names in the namespace into messaging primitives. In this post I’ll start drilling into the capabilities of the...
  • Blog Post: .NET Services March 2009 CTP - Service Bus Routers and Queues - Part 1: Fundamentals

    In the March 2009 CTP of the .NET Service Bus we’ve added two significant new capabilities, Routers and Queues, that also signal a change of how we’ve thinking about the Service Bus namespace, its capabilities and the road ahead. Before the M5 release, the Service Bus’ primary capability was to act as...
  • Blog Post: [Intermission] Auf der Mauer, auf der Lauer sitzt 'ne kleine Wa! - or: When REST isn't REST - or: Why and How I Care About Standards-Compliance

    … seht Euch mal die Wa an, wie die Wa ta kann. Auf der Mauer auf der Lauer sitzt ‘ne kleine Wa! . It’s a German children’s song. The song starts out with “… sitzt ‘ne kleine Wanze” (bedbug) and with each verse you leave off a letter: Wanz, Wan, Wa, W, – silence. I’ll do the same here, but not with...
  • Blog Post: .NET Services March 2009 CTP - The Service Bus Namespace

    With the March CTP, the .NET Service Bus namespace root for each project is taking on a new form that we had already pre-announced into the PDC’08 documentation and that I’ve talked about at PDC and other occasions. Any project’s root URI is now, depending on the chosen transport option, of the form...
  • Blog Post: .NET Services March 2009 CTP - "Milestone 5"

    Our deployment team reports that they’re done with the last touches on our new release, that the servers are happily humming with the new bits, and that the new SDK is posted. The .NET Services Developer Center has been updated as well. You can get the SDK bits from here [1].  We also have a runtime...
  • Blog Post: The Service Bus Bindings and WAS/IIS

    [Update 2010-08-25: Wade Wegner now shows a solution on his blog ] We’ve been getting some questions along the lines of “I am hosting a service as xyz.svc in IIS and have changed the config to use on of the Service Bus bindings , but the service never gets called?” That’s right. It doesn’t. The...
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