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RavenDB is a server product, as such, we are obvious going to have to talk over the network. That is great, except that it means we need a system wide resource, a TCP port. And that isn’t so great, because it turn out that there are a lot of things that can try to grab a port and use it. And I don’t speak about things like Skype taking over port 80. I’m talking about the use of dynamic or ephemeral ports. That means that during the build, we can have something (for example, Chrome, or DropBox,...

Source Feed: Ayende @ Rahien

Software AutoMapper 3.2.0 released - Jimmy Bogard announces the release of AutoMapper 3.2.0, a release containing a number of significant improvements and new features including further improvements toLINQ Queryable extensions, improvements to RverseMap, preconditions on member mappings, and much more Information Heartbleed and static analysis - Eric Lippert discusses static analysis in the context of detecting issues like [...]

Source Feed: The Morning Brew
Categories: .net, development, morning brew

Note: This is done purely as a design practice. We don’t have any current plans to implement this, but I find that it is a good exercise in general. How would I go about building a search engine for RavenDB to replace Lucene. Well, we have Voron as the basis for storage, so from the get go, we have several interesting changes. To start with, we inherit the transactional properties of Voron, but more importantly, we don’t have to do merges, so we don’t have any of those issues. In other...

Source Feed: Ayende @ Rahien

Software Azure Updates: Web Sites, VMs, Mobile Services, Notification Hubs, Storage, VNets, Scheduler, AutoScale and More - Scott Guthrie formally announces the latest batch of updates from the Azure Team, including SSL on websites, Chef and Puppet extensions for Virtual Machines, enhancements for Notification Hubs, mobile services, the GA release of Read Access Geo Redundant [...]

Source Feed: The Morning Brew
Categories: .net, development, morning brew


JavaScript's most often used and most fundamental data type is the Object data type.

Source Feed: C-Sharpcorner Latest Articles

Here, I am describing the use of the jQuery sortable feature.

Source Feed: C-Sharpcorner Latest Articles




It has been a really busy last 10 days for the Azure team. This blog post quickly recaps a few of the significant enhancements we’ve made.  These include: Web Sites: SSL included, Traffic Manager, Java Support, Basic Tier Virtual Machines: Support for Chef and Puppet extensions, Basic Pricing tier for Compute Instances Virtual Network: General Availability of DynamicRouting VPN Gateways and Point-to-Site VPN Mobile Services: Preview of Visual Studio support for .NET, Azure...

Source Feed: ScottGu's Blog
Categories: visual studio, .net, community news, azure




I’ve been using Lucene for the past six or seven years, and after my last post, I thought it would be a good idea to talk a bit about the kind of things that it isn’t doing well. We’ve been using it extensively in RavenDB for the past 5 years, and I think that I have a pretty good understanding of it. We used to have one of Lucene.NET committers working at Hibernating Rhinos, so I’ve a high level of confidence that I’m not just stupidly not using it properly, too. Probably the part that caused...

Source Feed: Ayende @ Rahien


Software A new search experience on the Gallery - Andrew Stanton-Nurse and the NuGet Team discuss their recently deployed improvements to the search experience witih the NuGet Gallery Information Open Source is a thankless job. We do it anyway - Scott Hanselman discusses the many difficulties of the open source community and the types of problems that are [...]

Source Feed: The Morning Brew
Categories: .net, development, morning brew

Lucene is a search engine library, which is great. But as it turns out, there is a lot going on there. After working with it for several years, I can say with confidence that it is a pretty awesome library. But surprisingly, a lot of the effort that went into it doesn’t seem to be talked about / visible to people not trolling through the code. I think that this is a pretty good testament for how successful it is. That, and the fact that it is now the base line against which all other search...

Source Feed: Ayende @ Rahien

Software Python Tools for Visual Studio 2.1 Beta - Somasegar announce the release of the Python Tools for Visual Studio 2.1, providing tool for use in Data Science, support for the Bottle and Flask web frameworks, and install support for installing within express editions of Visual Studio. RyuJIT CTP3 minor fix - Kevin Frei highlights a fix [...]

Source Feed: The Morning Brew
Categories: .net, development, morning brew

I talked about the Lucene formula and how it calculate things using tf-idf for best matches. Now I want to talk about the actual sorting implementation. As it turned out, the default sorting (by relevancy) is really simple. All you need is to get the relevant score for a query, then you shove the results through a heap with a specified size. The heap will take care of maintain the top results. So far, that is pretty simple to understand. But the question is, how do you do sorting on a field...

Source Feed: Ayende @ Rahien

Software Introducing dotPeek 1.2 Early Access Program - The JetBrains team announce the opening of the Early Access Programme for dotPeek 1.2, the next version of this free .NET Decompiler which includes a number of ReSharper like navigation features. Information Mono and Roslyn - Miguel de Icaza gives a detailed and interesting overview of what the open sourcing [...]

Source Feed: The Morning Brew
Categories: .net, development, morning brew

Now that the conference is over ,and I am merely doing 3 back to back RavenDB courses in 3 cities and 2 continents, I can sit back and look at that. I was, in a word, a blast. We had eight speakers giving 14 talks, about topics that moved from date and time handling in RavenDB to operational concerns to architectural how to. But, to be honest, I think that I found the attendees to be the main attraction. It was really good to finally meet so many of the people we have been talking with over...

Source Feed: Ayende @ Rahien

Information Roslyn (.NET Compiler Platform) should be a Black Box, Roslyn (.NET Compiler Platform) should be a Black Box, Language as Two Parts: Parser and Behavior & Roslyn (.NET Compiler Platform) As Open Source - Kathleen Dollard shares her thoughts on the .NET Compilers and the Roslyn Project, and their new status as open source. Quick [...]

Source Feed: The Morning Brew
Categories: .net, development, morning brew

RavenDB 3.0 Keynote from Oren Eini How Voron works: Insight into the new RavenDB storage engine from Oren Eini Tailored database solutions: Building a 100 billion records db in 20 minutes from Oren Eini

Source Feed: Ayende @ Rahien

I started the day at 5:30 AM, because we had to go to the venue and get everything ready. This is now 01:30 AM for the next day, and I am still stoked. I took this picture at around 8 AM, when people started to queue up to go into the conference: For that matter, you can see a few other photos from the conference here. I’ll do a retrospect about the conference when I have time to breath. But for now, I can report that the RavenDB Hackaton was quite a success, we have a cool new feature...

Source Feed: Ayende @ Rahien

Software Goodbye Windows XP - Hello Windows 8.1 Update - David Musgrave highlights the end of life of for support of Windows XP, occurring today, and also the latest update to Windows 8.1 April Updates to the Azure Toolkit for Eclipse - Azure SDK 2.3, Tomcat 8, New Zulu versions, and more! - Brian Benz highlights [...]

Source Feed: The Morning Brew
Categories: .net, development, morning brew

The basis of how Lucene work is tf–idf, short for term frequency–inverse document frequency. You can read about it here. It is pretty complex, but it is explained in detailed in the Lucene docs. It all fall down to: For now, I want to look at the tf() function. The default implementation is in DefaultSimilarity.Tf, and is defined as: That isn’t really helpful, however. Not without knowing what freq is.  And I’m pretty sure that Sqrt isn’t cheap, which probably explains this: So it caches...

Source Feed: Ayende @ Rahien

Software Node.js Tools for Visual Studio 1.0 Beta - Somasegar announces the beta release of the Node.js Tools for Visual Studio 2013, bringing all the features you’ve come to expect for Visual Studio development to the Node.js platform including debugging, diagnostics, editor integration, package management and much more. BUILD 2014 Round-Up - Part 1 & A [...]

Source Feed: The Morning Brew
Categories: .net, development, morning brew

Continuing my trip into the Lucene codebase, now I’m looking into the process indexing are happening. Interestingly enough, that is something that we never really had to look at before. It is quite clear that Lucene is heavily meant for utilizing additional threads for improving overall indexing speed. You can see it in the number of per thread state that exist all over the indexing code. That is also meant to reduce memory consumption, as far as I can see. The real stuff happens in the...

Source Feed: Ayende @ Rahien

Software The .NET Foundation and .NET Platform Innovation - Somasegar shares some further significant announcements, including the creation of an independent foundation to support open source development on the .NET Platform, a number of new technology innovations, including the open sourcing of Roslyn and C# / VB, an update on the partnership with Xamarin and much [...]

Source Feed: The Morning Brew
Categories: .net, development, morning brew

Software Visual Studio 2013 Update 2 RC: Windows Phone 8.1 Tools, Shared Projects and Universal Windows Apps - Somasegar shares the high level announcements from //Build2014, including significant developments for Windows App Development, the Release Candidate for Visual Studio 2013 Update 2, TFS 2013 Update 2 RTW, .NET Native and TypeScript 1.0 RTM Announcing new web features [...]

Source Feed: The Morning Brew
Categories: .net, development, morning brew





March 2014Rachel Appel looks at how the Hub project template in Visual Studio works with the Hub control to help you code HTML and XAML Windows Store apps that showcase large amounts of data in an aesthetically pleasing, functional and modern layout.

Source Feed: MSDN Magazine RSS Feed:

This morning we released a massive amount of enhancements to Windows Azure.  Today’s new capabilities and announcements include: ExpressRoute: Dedicated, private, high-throughput network connectivity with on-premises Web Sites: Backup and Restore Support Mobile Services: .NET support, Notification Hub Integration, PhoneGap support HDInsight: Hadoop 2.2 support Management: Co-admin limit increased from 10->200 users Monitoring: Service Outage Notifications Integrated...

Source Feed: ScottGu's Blog
Categories: asp.net, .net, community news, azure

Instrumenting your application code should be one of the key Non-Functional Requirements for consideration while building applications in Azure, specifically if they are multi-tenant SaaS-based applications.

Source Feed: DevX: Latest .NET Content


February 2014Aspect-oriented programming lets you separate the code that’s not directly related to your layers—such as logging, validation or authentication—in different classes. Here, Bruno Sonnino shows how to use the RealProxy class to apply aspects to your code in an easy and flexible way.

Source Feed: MSDN Magazine RSS Feed:


This morning we released another great set of enhancements to Windows Azure.  Today’s new capabilities and announcements include: Web Sites: Staged Publishing Support and Always On Support Monitoring Improvements: Web Sites + SQL Database Alerts Hyper-V Recovery Manager: General Availability Release Mobile Services: Support for SenchaTouch PCI Compliance: Windows Azure Now Validated for PCI DSS Compliance All of these improvements are now available to use immediately (note...

Source Feed: ScottGu's Blog
Categories: asp.net, .net, azure


This morning we released another nice set of enhancements to Windows Azure.  Today’s new capabilities include: Scheduler: New Windows Azure Scheduler Service Storage: New Read-Access Geo Redundant Storage Option Monitoring: Enhancements to Monitoring and Diagnostics for Azure services All of these improvements are now available to use immediately (note that some features are still in preview).  Below are more details about them: Scheduler: New Windows Azure Scheduler Service...

Source Feed: ScottGu's Blog
Categories: .net, community news, azure


I’ll be in Ireland and the UK next week presenting at several events.  Below are details on the talks I’ll be doing if you want to come along and hear them: Dublin: Monday Dec 2nd I’m doing two separate free events in Dublin on Monday: Windows Azure and the Cloud at Mon 1-3pm.  This event is free to attend, and I’ll be doing a two hour keynote/overview session on Windows Azure as part of it.  This will be a great talk to attend if you are new to Windows Azure and are interested in...

Source Feed: ScottGu's Blog
Categories: asp.net, .net, talks, community news, azure

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This morning we released another great set of enhancements to Windows Azure.  Today’s new capabilities include: BizTalk Services: General Availability Release Traffic Manager: General Availability Release Active Directory: General Availability Release of Application Access Support Mobile Services: Active Directory Support, Xamarin support for iOS and Android with C#, Optimistic concurrency Notification Hubs: Price Reduction + Debug Send Support Web Sites: Diagnostics...

Source Feed: ScottGu's Blog
Categories: asp.net, .net, community news, azure

Two weeks ago we released a giant set of improvements to Windows Azure, as well as a significant update of the Windows Azure SDK. This morning we released another massive set of enhancements to Windows Azure.  Today’s new capabilities include: Storage: Import/Export Hard Disk Drives to your Storage Accounts HDInsight: General Availability of our Hadoop Service in the cloud Virtual Machines: New VM Gallery, ACL support for VIPs Web Sites: WebSocket and Remote Debugging Support ...

Source Feed: ScottGu's Blog
Categories: asp.net, community news, azure

Earlier today I blogged about a big update we made today to Windows Azure, and some of the great new features it provides. Today I’m also excited to also announce the release of the Windows Azure SDK 2.2. Today’s SDK release adds even more great features including: Visual Studio 2013 Support Integrated Windows Azure Sign-In support within Visual Studio Remote Debugging Cloud Services with Visual Studio Firewall Management support within Visual Studio for SQL Databases ...

Source Feed: ScottGu's Blog
Categories: visual studio, .net, community news, azure

This morning we released a huge set of updates to Windows Azure.  These new capabilities include: Backup Services: General Availability of Windows Azure Backup Services Hyper-V Recovery Manager: Public preview of Windows Azure Hyper-V Recovery Manager Virtual Machines: Delete Attached Disks, Availability Set Warnings, SQL AlwaysOn Configuration Active Directory: Securely manage hundreds of SaaS applications Enterprise Management: Use Active Directory to Better Manage...

Source Feed: ScottGu's Blog
Categories: .net, community news, azure

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