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.
192
10 章 Spark Streaming
10-7
error
Java
ー
// streaming context
を起動し、起動の完了を待つ
jssc.start();
//
ジョブの終了を待つ
jssc.awaitTermination();
注意が必要なのは、
StreamingContext
が起動できるのは
1
度だけであり、必要なすべての
DStream
と出力操作のセットアップを行った後に起動しなければならいことです。
これでシンプルなストリーミングアプリケーションができたので、いよいよ起動してみましょ
う。
10-8
をご覧ください。
10-8
Linuy/Mac
ーーー
$ spark-submit --class com.oreilly.learningsparkexamples.scala.StreamingLogInput \
$ASSEMBLY_JAR local[4]
$ nc localhost 7777 #
入力した行がサーバーに送られる
<
何か入力する
>
Windows
のユーザーは、
nc
コマンドの代わりに
ncat
コマンド（
http://nmap.org/ncat/
）を使
うことができます。
ncat
は、
nmap
（
http://nmap.org
）の一部として配布されています。
本章ではこの後、このサンプルの上で
Apache
のログファイルを処理する仕組みを構築します。
ダミーのログを生成したいなら、本書の ...
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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.