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From "fang fang chen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-9679) KerberosName.rules are not initialized during adding kerberos support to a web servlet using hadoop authentications
Date Mon, 01 Jul 2013 06:18:20 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-9679?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13696603#comment-13696603
] 

fang fang chen commented on HADOOP-9679:
----------------------------------------

With hadoop-2.0.3, seems this issue can be avoided via setting kerberos.name.rules at server
side. But this setting does not work at hadoop-1.1.1. 
I think we should set KerberosName.rules with a default value during KerberosName(String Name)
which is invoked at KerberosAuthenticationHandler.authenticate(HttpServletRequest request,
final HttpServletResponse response) .
                
> KerberosName.rules are not initialized during adding kerberos support to a web servlet
using hadoop authentications
> -------------------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-9679
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9679
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: security
>    Affects Versions: 1.1.2, 2.0.4-alpha
>            Reporter: fang fang chen
>
> I am using hadoop-1.1.1 to add kerberos authentication to a web service. But found rules
are not initialized, that makes following error happened:
> java.lang.NullPointerException
>         at org.apache.hadoop.security.KerberosName.getShortName(KerberosName.java:384)
>         at org.apache.hadoop.security.authentication.server.KerberosAuthenticationHandler$2.run(KerberosAuthenticationHandler.java:328)
>         at org.apache.hadoop.security.authentication.server.KerberosAuthenticationHandler$2.run(KerberosAuthenticationHandler.java:302)
>         at java.security.AccessController.doPrivileged(AccessController.java:310)
>         at javax.security.auth.Subject.doAs(Subject.java:573)
>         at org.apache.hadoop.security.authentication.server.KerberosAuthenticationHandler.authenticate(KerberosAuthenticationHandler.java:302)
>         at org.apache.hadoop.security.authentication.server.AuthenticationFilter.doFilter(AuthenticationFilter.java:340)
> Seems in hadoop-2.0.3, this issue still is not fixed. 

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