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Cannot access: //. Note: you are a Hue admin but not a HDFS superuser, "hdfs" or part of HDFS superg

Cannot access: //. Note: you are a Hue admin but not a HDFS superuser, "hdfs" or part of HDFS superg

Explorer

Hi,

I am new to Hue. I have installed Hue on the remote server than that of the namenode.
 
 
When I login to Hue and try to access the HDFS file locations, I am getting following error. 
 
Cannot access: //. Note: you are a Hue admin but not a HDFS superuser, "hdfs" or part of HDFS supergroup, "supergroup". 
 
I created the user admin and hdfs in Hue  and they are the superusers.  I have also created directories in hdfs and added to supergroup.
 
drwxr-xr-x   - hduser supergroup          0 2017-09-09 14:47 /user
drwxr-xr-x   - admin  supergroup          0 2017-09-09 14:16 /user/admin
drwxr-xr-x   - hdfs   supergroup          0 2017-09-09 14:13 /user/hdfs
drwxr-xr-x   - hduser supergroup          0 2017-09-04 17:27 /user/hduse
 
Please let me know where am I making the mistake and request to guide. 
27 REPLIES 27

Re: Cannot access: //. Note: you are a Hue admin but not a HDFS superuser, "hdfs" or part

Explorer

Any body can help. 

 

my hdfs-site.xml has the following in HA NN and DN

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

My hue.ini has 

 [[hdfs_clusters]]
    # HA support by using HttpFs

    [[[default]]]
      # Enter the filesystem uri
      fs_defaultfs=hdfs://ha-cluster

      # NameNode logical name.
      ## logical_name=

      # Use WebHdfs/HttpFs as the communication mechanism.
      # Domain should be the NameNode or HttpFs host.
      # Default port is 14000 for HttpFs.
      ## webhdfs_url=http://localhost:50070/webhdfs/v1
       webhdfs_url=http://<gateway_host_name>:14000/webhdfs/v1

My httpFs-site.xml has

  <!-- HUE proxy user setting -->
  <property>
    <name>httpfs.proxyuser.hue.hosts</name>
    <value>*</value>
  </property>
  <property>
    <name>httpfs.proxyuser.hue.groups</name>
    <value>*</value>
  </property>

  <property>
    <name>httpfs.hadoop.config.dir</name>
    <value>/etc/hadoop/conf</value>
  </property>
</configuration>

Re: Cannot access: //. Note: you are a Hue admin but not a HDFS superuser, "hdfs" or part

New Contributor

Hello Sandy, I'm currently facing the same issue now. Did you figured out how can you solve this error ! If yes, please share those details as it would be very helpful for us.

 

Thanks

Suraj

Re: Cannot access: //. Note: you are a Hue admin but not a HDFS superuser, "hdfs" or part

Explorer
Hi Siraj,

I did not find the solution for this.

This was the issue with the manual setup. When I used cloudera package
installation all worked fine.

Re: Cannot access: //. Note: you are a Hue admin but not a HDFS superuser, "hdfs" or part

New Contributor

Oh Ok, Thank you Sandy. I'm actually running the Hue instance in EMR cluster, so I think I can't apply any changes here with cloudera packages. 

 

Cloudera support team, if you have a possible solution for this please leave your comments. I could see this issue was raised by several developers but there were no apt solutions on this.

 

Cannot access: /user/. The HDFS REST service is not available.

HTTPConnectionPool(host='ip-XX-XX-XX-XX.ec2.internal', port=50070): Max retries exceeded with url:

 

Thanks

Suraj

 

 

Re: Cannot access: //. Note: you are a Hue admin but not a HDFS superuser, "hdfs" or part

New Contributor

I have the same problem. Did anyone ever get this solved ?

Re: Cannot access: //. Note: you are a Hue admin but not a HDFS superuser, "hdfs" or part

Super Guru

Hi @lwpritchett,

 

We need to know exactly what action you are taking and what happens when you take it.  While your issue may be the same or similar to what was described earlier in this thread, we can't tell till we see your info.

 

Please also review your Hue log (/var/log/hue/runcpserver.log by default) at the time the problem occurs and share any log messages/exceptions you see at that time.  This should provide some background to start looking at the issue.

 

 

Re: Cannot access: //. Note: you are a Hue admin but not a HDFS superuser, "hdfs" or part

New Contributor

I get this error on initial signon within HUE web UI. 

 

Cannot access: /. Note: you are a Hue admin but not a HDFS superuser, "hdfs" or part of HDFS supergroup, "supergroup".

 

It should be taking me to my home directory "/user/lar00181" but instead is taking me to "/" root. The error is correct in that I do not have rights to access /. What I cannot figure out is why it is taking me to root in the first place. 

 

Highlighted

Re: Cannot access: //. Note: you are a Hue admin but not a HDFS superuser, "hdfs" or part

Cloudera Employee

Hi Sandy,

 

Hue superusers are different from hdfs superusers. With this error message, it complains that the admin and hdfs users you created through hue are not part to hdfs superuser. You should be able to fix the issue by fixing the permission of the directories to the user/group on the cluster.

 

Hope this helps!

 

Weixia

Re: Cannot access: //. Note: you are a Hue admin but not a HDFS superuser, "hdfs" or part

Hello, I am having the same issue when I click HDFS on Hue Web UI

when you say change permissions on /user/group- can you elaborate on that where, how and what?