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Posted to common-dev@hadoop.apache.org by "Erik Steffl (JIRA)" <ji...@apache.org> on 2010/07/17 00:24:51 UTC

[jira] Created: (HADOOP-6864) Provide a JNI-based implementation of ShellBasedUnixGroupsNetgroupMapping (implementation of GroupMappingServiceProvider)

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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