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https://issues.apache.org/jira/browse/HADOOP-11683?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15752105#comment-15752105
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Graham Simpson commented on HADOOP-11683:
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This is a darn useful feature for folks using Centrify or such products to
integrate correctly with Active Directory. I'd argue this is a critical issue
as correct mapping is essential to hadoop operation. You can use auth_to_local
to workaround but of course this requires namenode restart which in a large
enterprise cluster is not really an option.
> Need a plugin API to translate long principal names to local OS user names
> arbitrarily
> --------------------------------------------------------------------------------------
>
> Key: HADOOP-11683
> URL: https://issues.apache.org/jira/browse/HADOOP-11683
> Project: Hadoop Common
> Issue Type: Improvement
> Components: security
> Affects Versions: 2.6.0
> Reporter: Sunny Cheung
> Assignee: roger mak
> Attachments: HADOOP-11683.001.patch, HADOOP-11683.002.patch,
> HADOOP-11683.003.patch
>
>
> We need a plugin API to translate long principal names (e.g.
> john....@example.com) to local OS user names (e.g. user123456) arbitrarily.
> For some organizations the name translation is straightforward (e.g.
> john....@example.com to john_doe), and the hadoop.security.auth_to_local
> configurable mapping is sufficient to resolve this (see HADOOP-6526).
> However, in some other cases the name translation is arbitrary and cannot be
> generalized by a set of translation rules easily.
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