question Re: Ambari:Problem accessing /webhdfs/v1/ats/done Error while enabling kerberos in Support Questions

Ambari:Problem accessing /webhdfs/v1/ats/done Error while enabling kerberos

soumya_swain2 — Tue, 18 Jul 2017 14:55:36 GMT

I have installed Ambari 2.5.0 version with HDP 2.6 and added some of the services but while enabling kerberos I am facing one weird issue.

resource_management.core.exceptions.Fail: Execution of 'curl -sS -L -w '%
{http_code}' -X GET --negotiate -u : 'http://xxxx:50070/webhdfs/v1/ats/done?
op=GETFILESTATUS&user.name=hdfs'' returned status_code=403. 
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"/>
  <title>Error 403   
   org.apache.hadoop.security.authentication.client.AuthenticationException
 </title

</head>
<body><h2>HTTP ERROR 403</h2>
<p>Problem accessing /webhdfs/v1/ats/done. Reason:
<pre>    
org.apache.hadoop.security.authentication.client.AuthenticationException
</pre>
  </p><hr /><i><small>Powered by Jetty://</small></i><br/>                                                
 <br/>

My installation is getting failed while installing the APP time line server and in the log file there is nothing coming.Everything was working fine before but suddenly it landed into this issue. Any suggestions will be appreciated.

Re: Ambari:Problem accessing /webhdfs/v1/ats/done Error while enabling kerberos

hemant_dindi — Tue, 25 Jul 2017 14:28:32 GMT

Did you try HDFS Service check? Is it successful?

Re: Ambari:Problem accessing /webhdfs/v1/ats/done Error while enabling kerberos

soumya_swain2 — Tue, 25 Jul 2017 14:57:58 GMT

Yes it is failing after kerberos is enabled with error message:

java.io.IOException: ixxxx:50070: Unexpected HTTP response: code=403 != 200, op=GETDELEGATIONTOKEN, message=org.apache.hadoop.security.authentication.client.AuthenticationException

ambari logged in user:admin

i have also generated ticket for HTTP with spengo keytab for admin user.

Re: Ambari:Problem accessing /webhdfs/v1/ats/done Error while enabling kerberos

hemant_dindi — Wed, 26 Jul 2017 14:20:51 GMT

I had the same issue which was due to mixed case of hostname.

I ensured that the hostname is uniform(lower case) and restarted the server.

This fixed the issue.

Re: Ambari:Problem accessing /webhdfs/v1/ats/done Error while enabling kerberos

soumya_swain2 — Thu, 27 Jul 2017 13:46:46 GMT

Thanks a lot.It worked for me after making the hostname to lower case.

Re: Ambari:Problem accessing /webhdfs/v1/ats/done Error while enabling kerberos

kanbaoduo — Tue, 26 Sep 2017 14:40:39 GMT

Thanks, It worked for me too.When updating my hostname to lower case.