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From "Erik Steffl (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-6864) Provide a JNI-based implementation of ShellBasedUnixGroupsNetgroupMapping (implementation of GroupMappingServiceProvider)
Date Fri, 16 Jul 2010 22:24:51 GMT
Provide a JNI-based implementation of ShellBasedUnixGroupsNetgroupMapping (implementation of
GroupMappingServiceProvider)
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                 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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