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Date: Thu, 15 Mar 2012 02:18:38 +0000 (UTC)
From: "Luke Lu (Commented) (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
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Subject: [jira] [Commented] (HADOOP-6941) Support non-SUN JREs in
 UserGroupInformation
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    [ https://issues.apache.org/jira/browse/HADOOP-6941?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13229839#comment-13229839 ] 

Luke Lu commented on HADOOP-6941:
---------------------------------

Thanks for the patch Devaraj! Can you tell me which versions of IBM JDKs you've tested with? The current version for IBM JDK for 1.6 is J9 SR10. The patch lgtm, btw.
                
> Support non-SUN JREs in UserGroupInformation
> --------------------------------------------
>
>                 Key: HADOOP-6941
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6941
>             Project: Hadoop Common
>          Issue Type: Bug
>         Environment: SLES 11, Apache Harmony 6 and SLES 11, IBM Java 6
>            Reporter: Stephen Watt
>            Assignee: Luke Lu
>             Fix For: 0.24.0
>
>         Attachments: 6941-1.patch, HADOOP-6941.patch, hadoop-6941.patch
>
>
> Attempting to format the namenode or attempting to start Hadoop using Apache Harmony or the IBM Java JREs results in the following exception:
> 10/09/07 16:35:05 ERROR namenode.NameNode: java.lang.NoClassDefFoundError: com.sun.security.auth.UnixPrincipal
> 	at org.apache.hadoop.security.UserGroupInformation.<clinit>(UserGroupInformation.java:223)
> 	at java.lang.J9VMInternals.initializeImpl(Native Method)
> 	at java.lang.J9VMInternals.initialize(J9VMInternals.java:200)
> 	at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.setConfigurationParameters(FSNamesystem.java:420)
> 	at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.<init>(FSNamesystem.java:391)
> 	at org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:1240)
> 	at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1348)
> 	at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1368)
> Caused by: java.lang.ClassNotFoundException: com.sun.security.auth.UnixPrincipal
> 	at java.net.URLClassLoader.findClass(URLClassLoader.java:421)
> 	at java.lang.ClassLoader.loadClass(ClassLoader.java:652)
> 	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:346)
> 	at java.lang.ClassLoader.loadClass(ClassLoader.java:618)
> 	... 8 more
> This is a negative regression as previous versions of Hadoop worked with these JREs

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