demo备忘
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2022-03-13 10:22:11
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WordCount，小demo备忘
/usr/local/hadoop# bin/hadoop namenode -format
/usr/local/hadoop# bin/start-all.sh
/usr/local/hadoop# jps
/usr/local/hadoop# sudo mkdir test
/usr/local/hadoop# la
/usr/local/hadoop# echo "**">*.txt
/usr/local/hadoop# bin/hadoop fs -mkdir in
/usr/local/hadoop# bin/hadoop fs -ls
/usr/local/hadoop# bin/hadoop fs -put /usr/local/hadoop/*.txt in
/usr/local/hadoop# bin/hadoop fs -ls in
/usr/local/hadoop# bin/hadoop jar hadoop-0.20.2-examples.jar wordcount in out
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