往hadoop写文件是权限不允许
org.apache.hadoop.security.AccessControlException: org.apache.hadoop.security.AccessControlException: Permission denied: user=EM-LKY, access=WRITE, inode="":hadoop1.0:supergroup:rwxr-xr-x
修改conf/hdfs-site.xml
<property>
<name>dfs.permissions</name>
<value>false</value>
</property>