November 2024
Intermediate to advanced
606 pages
17h 8m
French
Content preview from Spark : Le guide définitif
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Chapitre 2. Une introduction en douceur à Spark
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Maintenant que notre leçon d'histoire sur Apache Spark est terminée, il est temps de commencer à l'utiliser et à l'appliquer ! Ce chapitre présente une introduction en douceur à Spark, dans laquelle nous parcourrons l'architecture de base d'un cluster, l'application Spark et les API structurées de Spark à l'aide de DataFrames et de SQL. En cours de route, nous aborderons la terminologie et les concepts de base de Spark afin que tu puisses commencer à l'utiliser immédiatement. Commençons par quelques informations de base.
L'architecture de base de Spark
Généralement, quand tu penses à un "ordinateur", tu penses à une machine posée sur ton bureau à la maison ou au travail. Cette machine fonctionne parfaitement bien pour regarder des films ou travailler avec un tableur. Cependant, comme beaucoup d'utilisateurs en ont probablement fait l'expérience un jour ou l'autre, il y a certaines choses que ton ordinateur n'est pas assez puissant pour accomplir. Le traitement des données est un domaine particulièrement difficile. Les machines individuelles n'ont pas assez de puissance et de ressources pour effectuer des calculs sur d'énormes quantités d'informations (ou l'utilisateur n'a probablement pas le temps d'attendre que le calcul se termine). Un cluster, ou groupe d'ordinateurs, met en commun les ressources ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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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.