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https://issues.apache.org/jira/browse/HADOOP-8943?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14044847#comment-14044847
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Brandon Li commented on HADOOP-8943:
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+1. The patch looks good to me. I agree that CommonConfigurationKeysPublic
should be moved to the right package.
> Support multiple group mapping providers
> ----------------------------------------
>
> Key: HADOOP-8943
> URL: https://issues.apache.org/jira/browse/HADOOP-8943
> Project: Hadoop Common
> Issue Type: Improvement
> Components: security
> Reporter: Kai Zheng
> Assignee: Kai Zheng
> Fix For: 2.5.0
>
> Attachments: HADOOP-8943.patch, HADOOP-8943.patch, HADOOP-8943.patch,
> hadoop-8943-v2.patch, hadoop-8943-v3.patch, hadoop-8943-v4.patch
>
> Original Estimate: 504h
> Remaining Estimate: 504h
>
> Discussed with Natty about LdapGroupMapping, we need to improve it so that:
> 1. It's possible to do different group mapping for different
> users/principals. For example, AD user should go to LdapGroupMapping service
> for group, but service principals such as hdfs, mapred can still use the
> default one ShellBasedUnixGroupsMapping;
> 2. Multiple ADs can be supported to do LdapGroupMapping;
> 3. It's possible to configure what kind of users/principals (regarding
> domain/realm is an option) should use which group mapping service/mechanism.
> 4. It's possible to configure and combine multiple existing mapping providers
> without writing codes implementing new one.
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