Clemens Vasters.

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

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  • Blog Post: TechEd Europe 2013: Service Bus Sessions

    Messaging with Windows Azure Service Bus Windows Azure Service Bus offers a rich set of messaging capabilities in the cloud as well as on-premises. This session discusses some of the advanced messaging capabilities in Service Bus. Join us to learn about publish-subscribe patterns, Using the Service...
  • Blog Post: Subscribe! - Getting Started with Service Bus

    Over on my new Channel 9 blog I've started a series that will (hopefully) help novices with getting started developing applications that leverage Windows Azure Service Bus (and, in coming episodes also Service Bus for Windows Server) The first two episodes are up: Getting Started with Service...
  • Blog Post: Service Bus: BeginSend is no magic async pixie dust

    I just got off the call with a customer and had a bit of a déjà vu from a meeting at the beginning of the week, so it looks like the misconception I'll explain here is a bit more common than I expected. In both cases, the folks I talked to, had the about equivalent of the following code in their app...
  • Blog Post: Transactions in Windows Azure (with Service Bus) – An Email Discussion

    I had a email discussion late last weekend and through this weekend on the topic of transactions in Windows Azure. One of our technical account managers asked me on behalf of their clients how the client could migrate their solution to Windows Azure without having to make very significant changes to...
  • Blog Post: MSDN Magazine June 2012: Using Windows Azure Service Bus for … Things!

    I actually had to double-check whether it’s really true given all my talks and places where I’ve published articles, but the June 2012 issue of MSDN Magazine is indeed the first of this storied publication in which I have an article. It’s about the “Internet of Things” and an exemplary architecture for...
  • Blog Post: SignalR powered by Service Bus

    UPDATED LINK: (tl;dr https://github.com/SignalR/SignalR/wiki/Azure-service-bus ) Our friends over in the ASP.NET team are working on a very nice, lightweight web-browser eventing technology called SignalR . SignalR allows server-pushed events into the browser with a variety of transport options and...
  • Blog Post: Service Bus Relay Load Balancing–The Missing Feature (But Not For Much Longer!)

    Load Balancing on the Service Bus Relay is by far our #1 most requested feature now that we’ve got Queues and Topics finally in production. It’s reasonable expectation for us deliver that capability in one of the next production updates and the good news is that we will. I’m not going to promise any...
  • Blog Post: Securing Service Bus with the Access Control Service

    This session explains how to secure Service Bus using the Access Control Service. This is also an extension session for my session at BUILD , but watching the BUILD session is not a strict prerequisite.
  • Blog Post: Service Bus Topics and Queues – Advanced

    This session is a followup to the Service Bus session that I did at the build conference and explains advanced usage patterns:
  • Blog Post: Building loosely-coupled Apps with Windows Azure Service Bus Topics and Queues

    From //build in Anaheim
  • Blog Post: Understanding Windows Azure AppFabric Queues (and Topics)

    Our team’s Development Manager MK (Murali Krishnaprasad) and me were interviewed by Michael Washam on May 2011 CTP release of Windows Azure AppFabric. We discuss new technologies such as Topics, Queues, Subscriptions and how this relates to doing async development in the cloud. Republished from...
  • Blog Post: Service Bus May 2011 CTP Client Bits now on NuGet

    (This post has been written by my coworker Eric Lam who pulled this all together – he wrote it as an email to the team – I’m just ripping that off) NuGet ( http://www.nuget.org/ ) is an open source package manager for .NET started by Microsoft. For some context there is a really good TechEd talk here...
  • Blog Post: Service Bus May 2011 CTP Resources

    Here’s a (incomplete) snapshot of what’s out there in terms of material for the new Service Bus CTP: First read the release notes where we provide a summary of what’s new and what changed and also point out some areas of caution on parallel installs of the CTP and production SDKs. You can get...
  • Blog Post: Introducing the Windows Azure AppFabric Service Bus May 2011 CTP

    A lot of partners and customers we talk to are telling us that they think of Service Bus as one of the key differentiators of the Windows Azure platform because it enables customers to build and interconnect applications that reflect the reality of where things stand with regard to moving workloads to...
  • Blog Post: A Bit Of Service Bus NetTcpRelayBinding Latency Math

    From: John Doe Sent: Thursday, May 12, 2011 3:10 AM To: Clemens Vasters Subject: What is the average network latency for the AppFabric Service Bus scenario? Importance: High Hi Clemens, A rough ballpark range in milliseconds per call will do. This is a very important metric for us to understand...
  • Blog Post: Why would anyone ever use a (Message) Queue?

    For programmers writing distributed systems and are not using queues in them just yet. If you are a message-oriented middleware veteran - move along ;-)
  • 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: Port Bridge

    Building “hybrid” cloud applications where parts of an an app lives up in a cloud infrastructure and other parts of the infrastructure live at a hosting site, or a data center, or even in your house ought to be simple – especially in this day and age of Web services. You create a Web service, make it...
  • Blog Post: SocketShifter - Network virtualization over the .NET Service Bus

    Anyone using the .NET Service Bus should take a good look at the SocketShifter project started by Rob Blackwell and Richard Prodger from AWS in the UK. AWS stands for Active Web Solutions , not for the "other" AWS. The full project is up on Codeplex . What makes SocketShifter significant is that it...
  • 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...
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