Permission denied: user=root, access=WRITE, inode="/":hdfs:supergroup:drwxr-xr-x

通过手动安装CDH没权限

[root@slave1 ~]# groupadd supergroup
[root@slave1 ~]# hadoop fs -mkdir /tao3^C
[root@slave1 ~]# usermod -a -G supergroup root
[root@slave1 ~]# hadoop fs -mkdir /tao4