Event ordering, checkpoints, and replays

In the previous sections, we covered some basic topics of Azure Stream Analytics: how to configure inputs and outputs, querying data, and using the service. In the last part of this chapter, I will show you its more advanced features such as event ordering, checkpoints, and replays, which ensure that events are processed exactly in a way you would expect. These topics are in fact common subjects in many different messaging solutions, so you will be able to use knowledge from this chapter in your other projects.

Event ordering

There are two concepts of events when it comes to their ordering:

• Application (or event) time
• Arrival time

There is a clear distinction between them:

• Application...