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Date: Wed, 3 Nov 2010 16:24:26 -0400 (EDT)
From: "Devaraj Das (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
Subject: [jira] Updated: (HADOOP-6818) Provide a JNI-based implementation of
 GroupMappingServiceProvider
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     [ https://issues.apache.org/jira/browse/HADOOP-6818?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Devaraj Das updated HADOOP-6818:
--------------------------------

    Resolution: Fixed
        Status: Resolved  (was: Patch Available)

I committed this. The ReleaseAudit warnings was due to an empty file FTPFileSystemConfigKeys.java in the codebase. The commit for HADOOP-6223 should have taken care of this. I have deleted it in this commit.

> 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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