org.apache.hadoop.security .AccessControlException: Permission denied:解决方法

[问题]

编译wordcount时，

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

[解决]

到服务器上修改hadoop的配置文件：conf/hdfs-core.xml, 找到dfs.permissions 的配置项 , 将value值改为 false

<property>

<name>dfs.permissions</name>

<value>false</value>

</property>

重启hadoop的进程