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Unable to open Resource Manger UI after Kerberezing the cluster

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Unable to open Resource Manger UI after Kerberezing the cluster

Explorer

Ambari : 2.7.4

HDP : 3.1.4.0-315

 

Hi everyone,

Recently after kerberizing my cluster, I am unable to access my Resource Manager UI. Whenever I hit on the resource manager link on Ambari, it shows up the following error :

 

 

Please help me out to resolve this issue as soon as possible.

@KuldeepK @Shelton @jsensharma 

 

1 ACCEPTED SOLUTION

Accepted Solutions

Re: Unable to open Resource Manger UI after Kerberezing the cluster

Expert Contributor

In HDP 3.x Spenego authentication will be enabled by default when you enable Kerberos

To access the UI you need to either configure Spnego auth in the browser OR disable spnego auth by setting the below  properties in Hdfs =>Advanced core-site

 

hadoop.http.authentication.simple.anonymous.allowed = true
hadoop.http.authentication.type = simple

 

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4 REPLIES 4

Re: Unable to open Resource Manger UI after Kerberezing the cluster

Explorer

HTTP ERROR 401
Problem accessing /ui2/. Reason:
      Unauthorized access

 

Re: Unable to open Resource Manger UI after Kerberezing the cluster

Expert Contributor

In HDP 3.x Spenego authentication will be enabled by default when you enable Kerberos

To access the UI you need to either configure Spnego auth in the browser OR disable spnego auth by setting the below  properties in Hdfs =>Advanced core-site

 

hadoop.http.authentication.simple.anonymous.allowed = true
hadoop.http.authentication.type = simple

 

View solution in original post

Re: Unable to open Resource Manger UI after Kerberezing the cluster

Explorer

@Scharan thanks a lot for replying.

The solution you suggested worked! But I just wanted to know whether modifying those two properties as you mentioned will cause any decrease in the security of my HDFS or cluster anyway?

Re: Unable to open Resource Manger UI after Kerberezing the cluster

Expert Contributor

@bvishal given properties will disable authentication for webui's and it will allow anonymous users to access the web UI's of hdfs, yarn, and mapreduce.