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Posted to common-issues@hadoop.apache.org by "Boris Shkolnik (JIRA)" <ji...@apache.org> on 2011/01/19 01:32:45 UTC
[jira] Commented: (HADOOP-6864) Provide a JNI-based implementation
of ShellBasedUnixGroupsNetgroupMapping (implementation of
GroupMappingServiceProvider)
[ https://issues.apache.org/jira/browse/HADOOP-6864?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12983459#action_12983459 ]
Boris Shkolnik commented on HADOOP-6864:
----------------------------------------
Thanks Todd.
Since I don't know if it ever will be moved to 0.22, i've modified CHANGES.txt, by moving the line into the trunk area.
Committed to trunk.
> Provide a JNI-based implementation of ShellBasedUnixGroupsNetgroupMapping (implementation of GroupMappingServiceProvider)
> -------------------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-6864
> URL: https://issues.apache.org/jira/browse/HADOOP-6864
> Project: Hadoop Common
> Issue Type: Improvement
> Components: security
> Reporter: Erik Steffl
> Assignee: Boris Shkolnik
> Fix For: 0.23.0
>
> Attachments: HADOOP-6864-0.20.1xx-1.patch, HADOOP-6864-0.20.1xx.patch, HADOOP-6864-0.22-1.patch, HADOOP-6864-0.22-2.patch, HADOOP-6864-0.22-3.patch, HADOOP-6864-0.22.patch
>
>
> The netgroups implementation of GroupMappingServiceProvider (see ShellBasedUnixGroupsNetgroupMapping.java) does a fork of a unix command to get the netgroups 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.
> Note that this is similar to what https://issues.apache.org/jira/browse/HADOOP-6818 does for implementation of GroupMappingServiceProvider that supports only unix groups.
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