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https://issues.apache.org/jira/browse/HDFS-14525?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16852255#comment-16852255
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Daryn Sharp commented on HDFS-14525:
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You actually want a secure cluster to accept anonymous users? Why do you even
have security enabled? I believe there was a debate about anon with security
many years ago and the decision was anon is fundamentally incompatible with
security.
The proposed change is completely wrong. If a custom authentication method is
used, you cannot fall through and allow the client specify who they are.
I'd say this is working as designed.
> JspHelper ignores hadoop.http.authentication.type
> -------------------------------------------------
>
> Key: HDFS-14525
> URL: https://issues.apache.org/jira/browse/HDFS-14525
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: webhdfs
> Affects Versions: 3.2.0
> Reporter: Prabhu Joseph
> Priority: Major
>
> On Secure Cluster With hadoop.http.authentication.type simple and
> hadoop.http.authentication.anonymous.allowed is true, WebHdfs Rest Api fails
> when user.name is not set. It runs fine if user.name=ambari-qa is set..
> {code}
> [knox@pjosephdocker-1 ~]$ curl -sS -L -w '%{http_code}' -X GET -d '' -H
> 'Content-Length: 0' --negotiate -u :
> 'http://pjosephdocker-1.openstacklocal:50070/webhdfs/v1/services/sync/yarn-ats?op=GETFILESTATUS'
> {"RemoteException":{"exception":"SecurityException","javaClassName":"java.lang.SecurityException","message":"Failed
> to obtain user group information: java.io.IOException: Security enabled but
> user not authenticated by filter"}}403[knox@pjosephdocker-1 ~]$
> {code}
> JspHelper#getUGI checks UserGroupInformation.isSecurityEnabled() instead of
> conf.get(hadoop.http.authentication.type).equals("kerberos") to check if Http
> is Secure causing the issue.
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