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https://issues.apache.org/jira/browse/HADOOP-10322?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13920060#comment-13920060
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Daryn Sharp commented on HADOOP-10322:
--------------------------------------
Yes, Allen, the main purpose of this patch is to support multiple keytab logins
for multi-interface support.
I think it might be better to add this to common's {{SecurityUtil}} so we can
add multi-interface support to other parts of hadoop. For simplicity, I'd
suggest a single method that takes a path and pattern, then returns all the
matching principals.
> Add ability to read principal names from a keytab
> -------------------------------------------------
>
> Key: HADOOP-10322
> URL: https://issues.apache.org/jira/browse/HADOOP-10322
> Project: Hadoop Common
> Issue Type: Improvement
> Components: security
> Affects Versions: 2.2.0
> Reporter: Benoy Antony
> Assignee: Benoy Antony
> Attachments: HADOOP-10322.patch, HADOOP-10322.patch,
> HADOOP-10322.patch, HADOOP-10322.patch, HADOOP-10322.patch,
> HADOOP-10322.patch, HADOOP-10322.patch, HADOOP-10322.patch,
> HADOOP-10322.patch, HADOOP-10322.patch, javadoc-warnings.txt
>
>
> It will be useful to have an ability to enumerate the principals stored in a
> keytab.
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