title: “README”
 createTime: 2022-01-04T20:48:40+08:00
 updateTime: 2022-01-04T20:48:40+08:00
 draft: false
 author: “name”
 tags: [“shell”]
 categories: [“hadoop”]
 description: “测试的”
 
hadoop 相关技术
- 获取某个application的 日志
    yarn logs -applicationId application_1593492224442_0003 >./yarn.log
./hadoop jar …/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.5.1.jar pi 5 10