title: Hue File Browser not working
body: <p>i have installed hue and the file browser in hue is not working and is throwing a "Server Error (500)"</p>
  
  <p>data from error.log</p>
  
  <pre><code>webhdfs      ERROR    Failed to determine superuser of WebHdfs at http://namenode:50070/webhdfs/v1: SecurityException: Failed to obtain user group information: org.apache.hadoop.security.authorize.AuthorizationException: User: hue is not allowed to impersonate hue (error 401)
  Traceback (most recent call last):
    File "/home/hduser/huef/hue/desktop/libs/hadoop/src/hadoop/fs/webhdfs.py", line 108, in superuser
      sb = self.stats('/')
    File "/home/hduser/huef/hue/desktop/libs/hadoop/src/hadoop/fs/webhdfs.py", line 188, in stats
      res = self._stats(path)
    File "/home/hduser/huef/hue/desktop/libs/hadoop/src/hadoop/fs/webhdfs.py", line 182, in _stats
      raise ex
  </code></pre>
  
  <p>Note :  i have added the following to core-site.xml and i have enabled webhdfs</p>
  
  <pre><code> &lt;property&gt;
                  &lt;name&gt;hadoop.proxyuser.hue.hosts&lt;/name&gt;
                  &lt;value&gt;*&lt;/value&gt;
          &lt;/property&gt;
          &lt;property&gt;
                  &lt;name&gt;hadoop.proxyuser.hue.groups&lt;/name&gt;
                  &lt;value&gt;*&lt;/value&gt;
          &lt;/property&gt;
  </code></pre>
  
  <p>Error when i try to access hdfs file location through oozie in hue</p>
  
  <pre><code>An error occurred: SecurityException: Failed to obtain user group information: org.apache.hadoop.security.authorize.AuthorizationException: User: hue is not allowed to impersonate hduser (error 401)
  </code></pre>