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https://issues.apache.org/jira/browse/HADOOP-14370?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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xuekang resolved HADOOP-14370.
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Resolution: Implemented
Release Note: later version has fixed it.
> GroupMapping implementation in Groups.java is not same as core-default.xml
> --------------------------------------------------------------------------
>
> Key: HADOOP-14370
> URL: https://issues.apache.org/jira/browse/HADOOP-14370
> Project: Hadoop Common
> Issue Type: Improvement
> Components: common
> Affects Versions: 2.7.2
> Reporter: xuekang
> Priority: Trivial
>
> In
> hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/Groups.java,
> the default GroupMappingServiceProvider is
> ShellBasedUnixGroupsMapping.class, but in core-default.xml, the value of
> hadoop.security.group.mapping is
> org.apache.hadoop.security.JniBasedUnixGroupsMappingWithFallback。
> It is misleading.
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