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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Streaming ETL and beyond
This first application will be an example of processing live streaming data with windowing and real-time visualization. The data source will be Twitter, processing of the tweet stream will compute the top hashtags in a time window as well as some counts that can be visualized as time series. The pattern is applicable to many similar use cases: data is continuously consumed from a streaming source and aggregated. Traditionally, results of such computation will land in a storage system (files, databases, and so on). Such processing can be broadly categorized as extract-transform-load (ETL) in streaming fashion. However, the focus here will be on stream processing that goes beyond the realm of general purpose ETL tools ...
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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.