July 2021
Intermediate to advanced
176 pages
4h 14m
English
Content preview from Concurrent Data Processing in ElixirBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Building Your Data-Processing Pipeline
Complex use cases may require a data-processing pipeline with a consumer stage, one or more producers, and several producer-consumers in between. However, the main principles stay the same, so we’re going to start with a two-stage pipeline first and demonstrate how that works.
We will build a fake service that scrapes data from web pages—normally an intensive task, dependent on system resources and a reliable network connection. Our goal is to be able to request a number of URLs to be scraped, and have the data pipeline take care of the workload.
First, let’s create a new application with a supervision tree like we’ve done before. We will name it scraper and pretend we’re going to scrape data from web ...
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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.