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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