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Questions tagged [streaminsight]

StreamInsight is a Complex Event Processing (CEP) product by Microsoft. It is meant to be run self-managed servers, in contrast to "Austin" which is the Azure-hosted version of the same product.

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How do I run multiple queries in the same StreamInsight process?

I've been working with StreamInsight for a few weeks now and generally have it doing what I want it to do with one exception. I can't get multiple queries to run in the same process. E.g., given that eventStream is IQStreamable: var…
Graeme Wilson
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Attach Sink to Overlapping Windows in StreamInsight

I'm working on porting over some Reactive Extension queries to StreamInsight but have run into an issue with an overlapping window query. I have a source setup in my StreamInsight server and I'm trying to write an overlapping window query like…
SignalRichard
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Streaminsight bottleneck

I don't know why my StreamInsight engine cannot handle more than 140 events/s, in the conditions that above 8000 events are delivered per second. I am seeing the number of events/s for my query in the Performance Monitor. And in the console of the…
ella
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How to poll slow moving data from a database to use as a StreamInsight reference stream?

How do you periodically poll a relatively static source, like a database, to create a reference stream in Microsoft StreamInsight? Here is what I've tried. I'm representing a database of user metadata as a simple List var referenceData…
voqk
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Storing WCF Observables in stand alone StreamInsight Server

I am using WCF Observables based on samples: var observableWcfSource = app.DefineObservable(() => new WcfObservable()) It works but it does not register the source in the server so when i explore my stand alone StreamInsight service with Event Flow…
Mohammad
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is WCF necessary to send events to a remote StreamInsight hosted service

I am using StreamInsight 2.1 hosted as a windows service and want to send sensor events from a sensor server to it. Is it necessary to use WCF? If yes, please show me a good help to start.
Mohammad
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StreamInsight as an ESB?

We've been using StreamInsight for a while to process various events. In the search of a good ESB platform, we also wonder if we could use StreamInsight for the same purpose. A couple of the key differences between StreamInsight and something like…
notlkk
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StreamInsight InputAdapter shares events among mutiple queries

I am observing a very weird processing of the events in my StreamInsight application. There is one InputAdapter which devides the Stream into TumblingWindows. Then I have multiple queries running at the same time. They should use all the same…
ProggerJoe
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StreamInsight pass Window Start Time to UDA

I have a problem I am stuck for two days now. Maybe someone of you guys can help me. I try to get the starttime of a window passed to a user defined aggregate. Unfortunately I don't know how to do this. The way I thought it should work looks like…
ProggerJoe
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StreamInsight Service on Windows doesn't recognize the application dlls

I have my project worked fine with embbed stream insight instance. But when I tried to use the standardalone StreamInsight service on Windows, I got an exception when this code is run using (matchQuery.Bind(sink).Run()) An exception of type…
Vu Nguyen
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Twitter stream routing using a 'bus' or StreamInsight

I'm stuck on an architectural question regarding the following: Edit: So I might be over thinking the problem, or I might rephrase the question. NServiceBus seems to be made for Messaging and Routing (of stream-like data?), whereas StreamInsight…
Ropstah
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How to extract fields of IObservable in Current in C#

Consider me new to the world of C# and the lingo associated with IObservable lingo. I have a question on how to extract the info from Current. Here is my c# code: private static IObservable ToObservableInterval(IEnumerable source, …
heavy rocker dude
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splitting input event steam by date

I have an input stream, read from a database, with measurements from different devices. The events recorded in the database are not in chronological order but usually arrive in a 2 minute window. however some devices can send data with a timestamp…
Matt
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Linq: Take top elements after group

I have the following query, and I''m trying to get the top 4 of TopicCounts by TCount: var bygroup = (from element in inputSplit group element by element.Text into groups from win in…
ae1112
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Add or remove events into a StreamInsight window

Is there a way to retain all events and just add or delete events as desired in StreamInsight? In Esper there is a method called keepall() witch can be applied on a window. This method keeps all incoming events and you can have different queries for…
lmsasu
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