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From "Erik Steffl (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-6864) Provide a JNI-based implementation of ShellBasedUnixGroupsNetgroupMapping (implementation of GroupMappingServiceProvider)
Date Wed, 21 Jul 2010 21:15:51 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-6864?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12890896#action_12890896
] 

Erik Steffl commented on HADOOP-6864:
-------------------------------------

JNA is licenced under Lesser General Public License (LGPL v. 2.1) which is not allowed to
be used in Apache projects, see http://www.apache.org/legal/resolved.html

> 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
>             Fix For: 0.22.0
>
>
> 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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