FAQ
Romain,

              Yeah i restarted the cluster after the change. Do we need to
create a separate user for installing hue??
Ill post the xml files in a while.


On Wednesday, September 11, 2013 8:59:58 PM UTC+5:30, Romain Rigaux wrote:

This is weird. Could you share you core-site.xml and mapred-site.xml? Did
you restart the cluster after the config change? Are you sure that you are
modifying the correct XML files?

About the Job Browser problem, you would need to do this:

http://www.cloudera.com/content/cloudera-content/cloudera-docs/CDH4/latest/CDH4-Installation-Guide/cdh4ig_configuring_cdh_hue.html#topic_15_4_2_unique_1

Romain


On Wed, Sep 11, 2013 at 12:28 AM, Arvind T <dniv...@gmail.com<javascript:>
wrote:
I have installed Hue on Apache Hadoop. I am facing some issues with the
file browser and oozie.



File browser throws “Service Error (500)”

Oozie is not able to access the file system.

NoteI haven’t created a separate user for Hue, I have installed Hue with
the already existing user ‘hduser

1. I have enabled webhdfs in hdfs-site.xml

*Data from Error.log*

WebHdfsException: SecurityException: Failed to obtain user group
information: org.apache.hadoop.security.authorize.AuthorizationException:
User: hduser is not allowed to impersonate hduser (error 401)

[10/Sep/2013 23:46:21 +0000] 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: hduser
is not allowed to impersonate hduser (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



*Misconfiguration detected by Hue*

hadoop.hdfs_clusters.default.webhdfs_url Current value:
http://namenode:50070/webhdfs/v1
Failed to access filesystem root hadoop.mapred_clusters.default Failed
to contact JobTracker plugin at namenode:9290.





*Added the following to core-site.xml*

<property>

<name>hadoop.proxyuser.hduser.hosts</name>

<value>*</value>

</property>

<property>

<name>hadoop.proxyuser.hduser.groups</name>

<value>*</value>

</property>





Kindly help me solve the issue.

Regards

Arvind Thangamani

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