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Posted to common-issues@hadoop.apache.org by "Erik Steffl (JIRA)" <ji...@apache.org> on 2010/11/03 03:12:27 UTC

[jira] Commented: (HADOOP-6818) Provide a JNI-based implementation of GroupMappingServiceProvider

    [ https://issues.apache.org/jira/browse/HADOOP-6818?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12927718#action_12927718 ] 

Erik Steffl commented on HADOOP-6818:
-------------------------------------

Looks, good, +1

> Provide a JNI-based implementation of GroupMappingServiceProvider
> -----------------------------------------------------------------
>
>                 Key: HADOOP-6818
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6818
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: security
>            Reporter: Devaraj Das
>            Assignee: Devaraj Das
>             Fix For: 0.22.0
>
>         Attachments: 6818-trunk-1.patch, 6818-trunk-2.patch, 6818-trunk.patch, hadoop-6818-1.patch, hadoop-6818-2.patch, JNIGroupMapping.patch
>
>
> The default implementation of GroupMappingServiceProvider does a fork of a unix command to get the groups of a user. Since the group resolution happens in the servers, this might be costly. This jira aims at providing a JNI-based implementation for GroupMappingServiceProvider.

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