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Write to Output when no events are received for a particular tumbling window time frame RRS feed

  • Question

  • Hi All,

    I am working on real time alerts system. The scenario I want to capture is when the Stream does not receive any input from the I/P Event Hub for a stipulated time frame. How do I do that ?

    Won't the tumbling window time frame work only when there is an input with either application time, or the default time taken by SA ? In my case when there are no input events, how would it work.

    Thanks in advance. 

    Wednesday, May 18, 2016 1:07 AM

Answers

  • This should help -

    Detecting absence of events - Check that a stream has no value that matches a certain criteria. e.g. Have 2 consecutive cars from the same make entered the toll road within 90 seconds?

    https://azure.microsoft.com/en-us/documentation/articles/stream-analytics-stream-analytics-query-patterns/#query-example-detect-the-absence-of-events

    Monday, June 27, 2016 9:43 PM