August 2015
Intermediate to advanced
312 pages
7h 28m
Japanese
Content preview from 初めてのSpark
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.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.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.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.
7
1.7 Spark のストレージ層
を高速に扱えるように設計されており、インメモリストレージや、効率的なフォールトリカバリの
サポートといった概念を持っていました。
Spark
が
2009
年に誕生したすぐ後、
Spark
に関する研究論文がアカデミックなカンファレンス
で発表された時点で、すでに
Spark
はある種のジョブにおいては、
MapReduce
の
10
倍から
20
倍
の速度を持っていました。
Spark
の初期のユーザーの中には、
UC
バークレー内の他のグループもおり、その中には
Mobile Millenium
プロジェクトのような機械学習の研究者たちもいました。彼らは、サンフラン
シスコのベイエリアの交通渋滞のモニタリングと予測に
Spark
を利用しました。とはいえ、ごく
短い間に外部の多くの組織が
Spark
を使い始め、今日では
Spark PoweredBy
のページ（
https://
cwiki.apache.org/confluence/display/SPARK/Powered+By+Spark
）には
50
以上の組織の名前
が掲載されており、数
10
の組織が自分たちのユースケースを、
Spark Meetups
（
http://www.
meetup.com/spark-users/
）や
Spark Summit
（
http://spark-summit.org
）などの
Spark
のコミュ
ニティイベントで発表しています。
Spark
への主なコントリビュータには、
UC
バークレーに加え
て、
Databricks
、
Yahoo! ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.