Fixing a gap in a prior post – Finding the Top Category with a Tumbling Window

In a prior blog post – http://blogs.msdn.com/b/appfabriccat/archive/2010/11/03/streaminsight-query-pattern-find-the-top-category-using-order-by-take-and-applywithunion.aspx– I discussed how to determine the top category in a set of events using order by and take.  However, I only covered non-overlapping aggregate windows (i.e. Tumbling windows).  I did not cover how you have to adjust your query definition for overlapping (Hopping) windows.  Since this question came…

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Two new blog posts on StreamInsight over on the AppFabric CAT Blog

Two new blog posts over on the AppFabric CAT blog on StreamInsight: StreamInsight: Obscure LINQ error – The field ‘Key’ of type ‘IKey`1’ either contains a nested member, or is a type that is not supported as event type field.  A walkthrough of resolving a little issue I ran into while building out a project…

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StreamInsight and reference data (lists, databases, etc)

Using reference data in StreamInsight is a very common scenarios; some examples would be: Monitoring process control event streams for values that exceed a given threshold (for example, a valve’s pressure exceeding a certain safety threshold). Enriching utility usage information in a smart metering scenario with user and geography information (for example, to allow visualization…

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101’ish LINQ Samples for StreamInsight (part 1 – filtering and aggregation)

Following in the great tradition of other learn through example LINQ example pages, such as 101 LINQ Samples, here’s the first in a series of posts on StreamInsight query examples.  This will first show up on this blog, then get migrated over to a centralized site on the StreamInsight developer center.  We’ve got a fairly…

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Building your First End to End StreamInsight Application (Going Deep on Adapters)

So you’ve heard about this shiny StreamInsight thing, perhaps from my last post, and want to build something for yourself and understand how all of this stuff fits together.  At this point you should have your Visual Studio environment up and running, along with StreamInsight installed (if you don’t, have a look at this post). …

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Secundus Posting (of sorts)

It’s been a while since there’s been any new content on here (well, let’s be honest, a very long time).  My role at Microsoft has shifted a bit in the last year, going down a slightly different direction and focusing on a new technology area.  I shifted over to covering StreamInsight on the SQL Customer…

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