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https://issues.apache.org/jira/browse/HADOOP-10342?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13902387#comment-13902387
]
Hudson commented on HADOOP-10342:
---------------------------------
FAILURE: Integrated in Hadoop-Yarn-trunk #482 (See
[https://builds.apache.org/job/Hadoop-Yarn-trunk/482/])
HADOOP-10342. Add a new method to UGI to use a Kerberos login subject to
build a new UGI. (Larry McCay via omalley) (omalley:
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1568525)
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
*
/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Client.java
*
/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/UserGroupInformation.java
*
/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/security/TestUGIWithSecurityOn.java
*
/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/security/TestUserGroupInformation.java
> Extend UserGroupInformation to return a UGI given a preauthenticated kerberos
> Subject
> -------------------------------------------------------------------------------------
>
> Key: HADOOP-10342
> URL: https://issues.apache.org/jira/browse/HADOOP-10342
> Project: Hadoop Common
> Issue Type: Bug
> Components: security
> Reporter: Larry McCay
> Assignee: Larry McCay
> Attachments: 10342.patch
>
>
> We need the ability to use a Subject that was created inside an embedding
> application through a kerberos authentication. For example, an application
> that uses JAAS to authenticate to a KDC should be able to provide the
> resulting Subject and get a UGI instance to call doAs on.
> Example:
> {code}
> UserGroupInformation.setConfiguration(conf);
> LoginContext context = new
> LoginContext("com.sun.security.jgss.login", new
> UserNamePasswordCallbackHandler(userName, password));
> context.login();
>
> Subject subject = context.getSubject();
> final UserGroupInformation ugi2 =
> UserGroupInformation.getUGIFromSubject(subject);
> ugi2.doAs(new PrivilegedExceptionAction<Object>() {
> @Override
> public Object run() throws Exception {
> final FileSystem fs = FileSystem.get(conf);
> int i=0;
> for (FileStatus status : fs.listStatus(new Path("/user"))) {
> System.out.println(status.getPath());
> System.out.println(status);
> if (i++ > 10) {
> System.out.println("only first 10 showed...");
> break;
> }
> }
> return null;
> }
> });
> {code}
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