org.apache.hadoop.security.AccessControlException: Permission denied:

org.apache.hadoop.security.AccessControlException: Permission denied: user=xxj, access=WRITE, inode="user":hadoop:supergroup:rwxr-xr-x

sulution：added this entry to conf/hdfs-site.xml

<property>
<name>dfs.permissions</name>
<value>false</value>
</property>