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https://issues.apache.org/jira/browse/HADOOP-10398?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13941993#comment-13941993
 ] 

Robert Kanter commented on HADOOP-10398:
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{quote} In production, we generally don't want to use the token cache since 
multiple different users on the same machine can mess up the token.{quote}
By default, the token ends up in the user's home dir; so multiple users 
shouldn't be a problem.  (Unless they all have the same home directory, but 
that doesn't seem right).

For 2, IIRC, the {{oozie.service.AuthorizationService.security.enabled}} stuff 
is handled soley within Oozie, isn't it?  It isn't related to tokens at all.  A 
quick look at AuthorizationService it looks like it just checks the username of 
a job against the current user or the admin list.  

[~bowenzhangusa], have you run into this problem when you don't set the cache 
to false?

> 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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