Please help with 'Sample Data' capability RRS feed

  • Question

  • We are trying to understand the results of sample data capability found in the Stream Analytics.  While we successfully seem to send data to the event hub, when we use the 'Sample Data' capability in the Stream Analytics we do not get all the data we sent.  What is the expected results from the 'Sample Data' capability.  If we send 1000 events to the hub over a 10 minute period and use the 'Sample Data' over that period should we get back all events or what?


    Mark Arking

    Friday, October 2, 2015 1:44 PM


  • Hi,

    Sample data is not guaranteed to send all the events in a given time period. ASA would spend limited amount of time and will retrieve upto 1000 events, if it was able to retrieve fewer than 1000 events within that time, it would only return those rows. It will attempt to get data evenly from all partitions. 


    Saturday, October 3, 2015 7:38 AM