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Erik Steffl commented on HADOOP-6864: ------------------------------------- Re https://issues.apache.org/jira/browse/HADOOP-6864?focusedCommentId=12931296&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#action_12931296 Sorry for confusion, HADOOP-6884 should have been HADOOP-6864. The rest of the comment is valid. > 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 > > Attachments: HADOOP-6864-0.20.1xx-1.patch, > HADOOP-6864-0.20.1xx.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. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.