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

[San]

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/hduser

Please let me know where am I making the mistakge and request to guide. 

[Jordan Moore]

Have you enabled WebHDFS on your Hadoop installation and set the necessary section that Hue talks to?

[hadoop]
  [[hdfs_clusters]]
    [[[default]]]
      fs_defaultfs=hdfs://namenode.fqdn:port

"Cannot access: //" looks like you haven't set that value correctly

[San]

      # Enter the filesystem uri

      fs_defaultfs=hdfs://ha-cluster

I did not use WebHDF and used HTTPFS as it is the HA cluster. My httpfs log file shows the following output 

2017-09-11 06:14:51,524  INFO Server [][:]  System property sets  httpfs.ssl.keystore.pass: <redacted>

2017-09-11 06:14:51,524  INFO Server [][:]  System property sets  httpfs.log.dir: /var/log/hadoop-httpfs/

2017-09-11 06:14:51,524  INFO Server [][:]  System property sets  httpfs.admin.port: 14001

2017-09-11 06:14:51,711  INFO FileSystemAccessService [][:]  Using FileSystemAccess JARs version [2.6.0-cdh5.12.0]

2017-09-11 06:14:52,669  INFO FileSystemAccessService [][:]  Using FileSystemAccess simple/pseudo authentication, principal [httpfs]

2017-09-11 06:14:52,808  INFO Server [][:]  Services initialized

2017-09-11 06:14:52,824  INFO Server [][:]  Server [httpfs] started!, status [NORMAL]

2017-09-11 06:14:52,980  INFO HttpFSServerWebApp [][:]  Connects to Namenode [hdfs://ha-cluster]

[Karan Kumar]

Did u try setting this ?

Blog post : https://discuss.pivotal.io/hc/en-us/articles/212862957-How-to-deploy-Hue-on-HDFS-with-Namenode-HA

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

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Thanks

Karan

[San]

Yes Karan,

I did it in httpfs-site.xml as well in core-site.xml file. 

Is it something to do with the permission of the hdfs directory ??

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Thanks

Karan