# Word Count範例 ### 主講人：黃夙賢 --- ## Word Count - 模擬三台機器的hadoop進行word count範例 - 參考資訊：https://github.com/kiwenlau/hadoop-cluster-docker  --- ## 範例容器image下載 - 抓取範例容器image檔案 - sudo docker pull kiwenlau/hadoop:1.0  --- ## 下載hadoop執行檔案 - 若無git請安裝(sudo apt install git) - git clone https://github.com/kiwenlau/hadoop-cluster-docker  --- ## 建立容器溝通介面 - 三個容器模擬三台電腦 - 建立hadoop三個容器溝通之網路介面 - sudo docker network create --driver=bridge hadoop  --- ## 啟動容器 - cd hadoop-cluster-docker - sudo ./start-container.sh - 會建立hadoop三台機器：hadoop-master、hadoop-slave1、hadoop-slave2  --- ## 啟動Hadoop - 啟動容器成功後，會進入容器內的linux作業系統 - 接下來啟動hadoop，會建立hadoop三台機器：hadoop-master、hadoop-slave1、hadoop-slave2 - ./start-hadoop.sh  --- ## Word Count範例 - 看一下wordcount範例在做甚麼 - more run-wordcount.sh  --- ## 執行Word Count程式 - ./run-wordcount.sh  ---  --- ## 執行結果 - file1.txt有兩個字，file2.txt有兩個字 - 最後顯示統計出來的結果  --- ## 莎士比亞文章字詞統計 - 莎士比亞文章字詞統計 [資料來源](https://github.com/brunoklein99/deep-learning-notes/blob/master/shakespeare.txt) - wget https://github.com/shhuangmust/bigdata/raw/main/run-wordcount1.sh - chmod 755 run-wordcount1.sh - ./run-wordcount1.sh ---  --- ## 統計結果  --- ## 刪除容器 - exit跳出容器 - docker rm -f $(docker ps -aq) - docker network rm hadoop  ---