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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-6864) Provide a JNI-based implementation of ShellBasedUnixGroupsNetgroupMapping (implementation of GroupMappingServiceProvider)
Date Sat, 25 Dec 2010 21:14:45 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-6864?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Todd Lipcon updated HADOOP-6864:
--------------------------------

    Fix Version/s:     (was: 0.22.0)
                   0.23.0
         Assignee: Boris Shkolnik
     Hadoop Flags: [Incompatible change]

Marking incompatible change since this adds a new method to the GroupMappingServiceProvider
interface, edited fix version to 0.23 since this seems to have been committed to trunk but
not 0.22.

> 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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