[jira] [Commented] (HADOOP-11176) KMSClientProvider authentication fails when when both currentUgi and loginUgi is a proxied user

[Charles Lamb (JIRA)]

    [ 
https://issues.apache.org/jira/browse/HADOOP-11176?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14163811#comment-14163811
 ] 

Charles Lamb commented on HADOOP-11176:
---------------------------------------

[~asuresh],

Just two nits.

This change:

{noformat}
      final String doAsUser = (currentUgi.getAuthenticationMethod() ==
          UserGroupInformation.AuthenticationMethod.PROXY) 
                              ? currentUgi.getShortUserName() : null;
{noformat}

seems to be a whitespace only change.

This change:

{noformat}
          return authUrl.openConnection(
              url,
              authToken, doAsUser);
{noformat}

seems to be an extraneous reformatting.

> KMSClientProvider authentication fails when when both currentUgi and loginUgi 
> is a proxied user
> -----------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-11176
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11176
>             Project: Hadoop Common
>          Issue Type: Bug
>            Reporter: Arun Suresh
>         Attachments: HADOOP-11176.1.patch
>
>
> In a secure environment, with kerberos, when the KMSClientProvider instance 
> is created in the context of a proxied user, The initial SPNEGO handshake is 
> made with the currentUser (the proxied user) as the Principal.. this will 
> fail, since the proxied user is not logged in.
> The handshake must be done using the real user.
>  



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