November 2017
Intermediate to advanced
328 pages
6h 51m
Japanese
Content preview from 入門 PySpark ―PythonとJupyterで活用するSpark 2エコシステム
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10.5
グローバル集計の簡単な例
207
のgreenと5つの blueと1つのgohawksという値を返させるということです。次のセクションでは、
updateStateByKey / mapWithState
という形のグローバルな集計について述べていきます。
PySpark
でのストリーミングのには、他にも次のようなものがあります。
Network Wordcount（Apache SparkのGitHubリポジトリ）（
https://github.com/apache/
spark/blob/master/examples/src/main/python/streaming/network_wordcount.py
）
Python Streaming Examples（
https://github.com/apache/spark/tree/master/examples/
src/main/python/streaming
）
S3 FileStream Wordcount（Databricksノートブック）（
https://docs.cloud.databricks.
com/docs/latest/databricks_guide/index.html#07%20Spark%20Streaming/06%20
FileStream%20Word%20Count%20-%20Python.html
）
10.5
グローバル集計の簡単な例
すでに述べたとおり、前セクションのスクリプトがストリー
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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.