August 2015
Intermediate to advanced
312 pages
7h 28m
Japanese
Content preview from 初めてのSpark
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141
7.6 クラスタマネージャ
り当てられる範囲でできるだけエクゼキュータの数を少なくし、アプリケーションを集約します。
--total-executor-cores
を設定しなかった場合、
Spark
はクラスタ内で利用できるコアをすべて
使おうとします。
7.6.4
Amazon EC2
Spark
には、
Amazon EC2
でクラスタを起動するためのスクリプトが組み込まれています。こ
のスクリプトは、ノード群を起動し、
Standalone
クラスタマネージャをそれらにインストールす
るので、クラスタが立ち上がれば、先ほどのセクションの
Standalone
モードでの説明に従って利
用できます。加えて、この
EC2
のスクリプトは
HDFS
や
Tachyon
、クラスタをモニタリングする
Ganglia
といったサポート用のサービスもセットアップしてくれます。
Spark EC2
スクリプトは
spark-EC2
という名前で、
Spark
をインストールした場所の
ec2
フォ
ルダにあります。このスクリプトを利用するには、バージョン
2.6
以降の
Python
が必要です。
Spark
を事前にコンパイルする必要はなく、
Spark
をダウンロードすれば
EC2
スクリプトを実行
できます。
EC2
スクリプトは、を管理できます。それらのクラスタは、
EC2
のセキュリティグループによって識別できます。
EC2
スクリプトは、それぞれのクラスタに対
し、マスターノード用の
clustername-master
というセキュリティグループと ...
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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.