org.apache.hadoop.security.AccessControlException:Permission denied: user=root, access=WRITE,inode="/user":hdfs:supergroup:drwxr-xr-x 问题解决:
a,修改hdfs-site.xml:
<property>
<name>dfs.permissions</name>
<value>false</value>
</property>
b,如果a步骤不行,执行[root@namenode1 lixun] > su hdfs