question Re: Not able to view Namenode UI logs from Ambari in Support Questions

Not able to view Namenode UI logs from Ambari

sanjeevanmahaja — Thu, 04 Feb 2016 01:27:27 GMT

I am trying to view Namenode Logs in Ambari - I am login as admin but its giving dr.who (which I guess is permission issues)

Re: Not able to view Namenode UI logs from Ambari

aervits — Thu, 04 Feb 2016 01:33:12 GMT

@sanjeevan mahajan

please add the following string to the end of your URL

?user.name=root

?user.name=admin

please see this

Re: Not able to view Namenode UI logs from Ambari

sanjeevanmahaja — Thu, 04 Feb 2016 01:52:34 GMT

@Artem Ervits The cluster is kerberized. I tried that but it didn't worked

Re: Not able to view Namenode UI logs from Ambari

aervits — Thu, 04 Feb 2016 01:53:39 GMT

@stevel @Chris Nauroth

Re: Not able to view Namenode UI logs from Ambari

sanjeevanmahaja — Thu, 04 Feb 2016 01:53:40 GMT

Also have used this

hadoop.http.staticuser.user=hdfs. Still not working

Re: Not able to view Namenode UI logs from Ambari

cnauroth — Thu, 04 Feb 2016 02:37:33 GMT

If accessing the NameNode web UI indicates that you are "dr.who", then this likely indicates that the cluster is not performing authentication on HTTP endpoints. The logs URL requires administrator access, so it is inaccessible unless authenticated as an administrator.

Enabling HTTP authentication is a separate step from enabling Kerberos security, so it's possible that the cluster has done one but not the other. For full details on how to enable HTTP authentication, please refer to the Apache Hadoop documentation for HTTP Authentication.