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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Sliding Time Windows
Similar to Time Windows, Sliding Time Windows have a fixed duration. However, the configuration for SlidingTimeWindows requires an additional time duration parameter slideBy:
The slideBy duration must be smaller than the window duration, and the window duration must be divisible by the slideBy duration. Each window overlaps with multiple other windows. Any timestamp would belong to the number of windows n defined by the following equation:
n = the window duration / the slideBy duration
Hence, a tuple would be assigned to n windows. As a result, Sliding Time Windows would take n times the resources compared to Time Windows. ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.