1、写测试
cd /export/servers/hadoop-2.6.0-cdh5.14.0/
yarn jar share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.6.0-cdh5.14.0.jar TestDFSIO -write -nrFiles 10 -size 10MB
- yarn:使用yarn来运行一个程序
- jar:运行一个jar包
- share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.6.0-cdh5.14.0.jar:需要运行的jar包
- TestDFSIO:要运行的程序的名称
- -write:测试写入
- -nrFiles 10:写入10个文件
- -size 10MB :每个文件10MB
2、读测试
cd /export/servers/hadoop-2.6.0-cdh5.14.0/
yarn jar share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.6.0-cdh5.14.0.jar TestDFSIO -read -nrFiles 10 -size 10MB
3、删除测试文件
hdfs dfs -rm -r -skipTrash /benchmarks