November 2017
Beginner to intermediate
290 pages
7h 34m
English
book
Learning Apache Apex
by Ananth Gundabattula, Thomas Weise, Munagala V. Ramanath, David Yan, Kenneth Knowles
Content preview from Learning Apache Apex
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Windowing in Beam
In the following diagram, there is a red element, a yellow element, and a green element that all describe events that occurred between 8:00 and 9:00 (let's say, UTC), as far as their users were concerned—these are the even time timestamps on the data. The time that they arrive for processing is on the horizontal axis:
If we want to compute accurately about the events that occurred between 8:00 am and 9:00 am, we need all of these events gathered in one place. However, we won't actually receive all of the relevant data until well after 13:00. We might be willing to wait until 10:00, but probably not until 14:00. Also, even ...
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