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https://issues.apache.org/jira/browse/HADOOP-10398?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13940598#comment-13940598
 ] 

Daryn Sharp commented on HADOOP-10398:
--------------------------------------

Reverting HADOOP-10078 is just going to re-introduce bugs.  The pseudo 
authenticator will also always be invoked causing double authentications for 
secure clusters.  This jira's patch would also force a double OPTIONS request 
to include the user, thus erasing any distinction between anonymous and 
non-anonymous.

The issue is the oozie server is rejecting anonymous users because it doesn't 
know who the user is, correct?  That doesn't make any sense.  Why is the server 
doing any sort of user-level authz if anonymous ("I don't care about users") is 
enabled?

> KerberosAuthenticator failed to fall back to PseudoAuthenticator after 
> HADOOP-10078
> -----------------------------------------------------------------------------------
>
>                 Key: HADOOP-10398
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10398
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: security
>            Reporter: Tsz Wo Nicholas Sze
>            Assignee: Tsz Wo Nicholas Sze
>         Attachments: a.txt, c10398_20140310.patch
>
>
> {code}
> //KerberosAuthenticator.java
>       if (conn.getResponseCode() == HttpURLConnection.HTTP_OK) {
>         LOG.debug("JDK performed authentication on our behalf.");
>         // If the JDK already did the SPNEGO back-and-forth for
>         // us, just pull out the token.
>         AuthenticatedURL.extractToken(conn, token);
>         return;
>       } else ...
> {code}
> The problem of the code above is that HTTP_OK does not implies authentication 
> completed.  We should check if the token can be extracted successfully.
> This problem was reported by [~bowenzhangusa] in [this 
> comment|https://issues.apache.org/jira/browse/HADOOP-10078?focusedCommentId=13896823&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13896823]
>  earlier.



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