May 2024
Intermediate to advanced
110 pages
1h 19m
Chinese
Content preview from 面向MapReduce的Hadoop优化Become 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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内容提要
大数据时代，MapReduce的重要性不言而喻。Hadoop作为MapReduce框架的一个实现，受到业界广泛的认同，并被广泛部署和应用。尽管 Hadoop 为数据开发工程师入门和编程提供了极大便利，但构造一个真正满足性能要求的MapReduce程序并不简单。数据量巨大是大数据工作的现实问题，而对低响应时间的要求则时常困扰着数据开发工程师。
本书采用原理与实践相结合的方式，通过原理讲解影响MapReduce性能的因素，透过实例一步步地教读者如何发现性能瓶颈并消除瓶颈，如何识别系统薄弱环节并改善薄弱环节，讲解过程中融合了作者在优化实践过程中积累的丰富经验，具有很强的针对性。读完本书，能让读者对 Hadoop 具有更强的驾驭能力，从而构造出性能最优的MapReduce程序。
Hadoop性能问题既是程序层面的问题，也是系统层面的问题。本书既覆盖了系统层面的优化又覆盖了程序层面的优化，非常适合 Hadoop 管理员和有经验的数据开发工程师阅读。对于初学者，本书第1章也作了必要的技术铺垫，避免对后面章节的理解产生梯度。
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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.