1、文档

• 官网文档

2、相关问题

2.1、hdfs基准测试

# 写入测试
hadoop jar share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.9.2.jar TestDFSIO -write -nrFiles 10 -fileSize 10MB
# 会在当前目录下生成一个测试报告
# 读取测试
hadoop jar share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.9.2.jar TestDFSIO -read -nrFiles 10 -fileSize 10MB
# 清楚hdfs中测试数据
hadoop jar share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.9.2.jar TestDFSIO -clean