This is a matter of authority , You can configure , And then restart hadoop Cluster solution , The simple solution at the moment is ：

stay  hdfs-site.xml Total added parameters ：

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

however , see hadoop Interface found no dfs.permissions, Yes ：dfs.permissions.enabled

stay  hdfs-site.xml Total added parameters ：

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

And then restart hadoop colony , If it's configured slave Sure ：

stop-dfs.sh

start-dfs.sh

That's all right.

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