Hue File Browser not working

Question

i have installed hue and the file browser in hue is not working and is throwing a "Server Error (500)"

data from error.log

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

Note : i have added the following to core-site.xml and i have enabled webhdfs

 <property>
                <name>hadoop.proxyuser.hue.hosts</name>
                <value>*</value>
        </property>
        <property>
                <name>hadoop.proxyuser.hue.groups</name>
                <value>*</value>
        </property>

Error when i try to access hdfs file location through oozie in hue

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)

Answer 1

core-site.xml

 <property>
      <name>hadoop.proxyuser.hue.hosts</name>
      <value>*</value>
 </property>
 <property>
      <name>hadoop.proxyuser.hue.groups</name>
      <value>*</value>
 </property>

hdfs-site.xml

<property>
     <name>dfs.webhdfs.enabled</name>
     <value>true</value>
</property>

Answer 2

You need to specify hduser as the proxy user:

 <property>
      <name>hadoop.proxyuser.hduser.hosts</name>
      <value>*</value>
 </property>
 <property>
      <name>hadoop.proxyuser.hduser.groups</name>
      <value>*</value>
 </property>

BTW: why are you not running Hue as 'hue'?