May 2026
Intermediate to advanced
412 pages
12h 29m
French
Content preview from Spark haute performance (French Edition), 2nd Edition
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Chapitre 4. Nouveautés de Spark 4.2 par rapport à la version 2.4
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Spark a considérablement évolué depuis la version 2.4, et on pourrait remplir tout un livre rien qu'avec les problèmes résolus. Dans ce chapitre, tu découvriras les changements les plus importants liés aux performances qui ont eu lieu dans Spark, ainsi qu'un aperçu de certaines propositions actuelles visant à apporter des changements majeurs dans les années à venir.
Pour tirer parti de certains de ces changements, il suffit parfois simplement de passer à la dernière version de Spark. D’autres changements nécessitent de modifier non seulement Spark, mais aussi d’autres composants de ton écosystème, comme Iceberg ou Delta Lake. Bien sûr, certaines des améliorations les plus importantes prennent la forme de nouvelles fonctionnalités, que tu peux utiliser soit pour supprimer ton propre code, soit pour accélérer les outils existants.
Mais tout n’est pas rose : certaines fonctionnalités sont supprimées ou ne sont plus maintenues. Bien que Spark dispose d’une suite de tests assez complète, ce qui rend peu probable la défaillance des composants moins bien entretenus, les performances peuvent se dégrader d’une version à l’autre, car tous les composants ne font pas l’objet de tests de performance.
La mauvaise nouvelle : GraphX
On a décidé d’aborder le sujet qui fâche : les composants de Spark ...
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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.