启动hadoop
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start-all.sh |
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jps |
Hdfs上创建文件夹
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hdfs dfs -mkdir wcinputhdfs dfs -ls /usr/hadoop |
上传文件至hdfs
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hdfs dfs -put ./515.txt wcinputhdfs dfs -ls /usr/hadoop/wcinput |
启动Hive
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hive |
创建原始文档表
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create table docs(line string); |
导入文件内容到表docs并查看
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load data inpath ‘/user/hadoop/wcinput/515.txt‘ overwrite into table docs; |
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select * from docs; |
用HQL进行词频统计,结果放在表word_count里
查看统计结果
原文:https://www.cnblogs.com/BOXczx/p/9049178.html