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https://issues.apache.org/jira/browse/HADOOP-13965?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yiqun Lin updated HADOOP-13965:
-------------------------------
Status: Patch Available (was: Open)
Attach a simple patch to fix.
> Groups should be consistent in using group mapping class
> --------------------------------------------------------
>
> Key: HADOOP-13965
> URL: https://issues.apache.org/jira/browse/HADOOP-13965
> Project: Hadoop Common
> Issue Type: Bug
> Components: security
> Affects Versions: 3.0.0-alpha2
> Reporter: Yiqun Lin
> Assignee: Yiqun Lin
> Priority: Minor
>
> {code:title=Groups.java}
> public Groups(Configuration conf, final Timer timer) {
> impl =
> ReflectionUtils.newInstance(
>
> conf.getClass(CommonConfigurationKeys.HADOOP_SECURITY_GROUP_MAPPING,
> ShellBasedUnixGroupsMapping.class,
> GroupMappingServiceProvider.class),
> conf);
> ...
> }
> {code}
> The default value of setting {{hadoop.security.group.mapping}} is different
> in code and config file. In file {{core-default.xml}}, it uses the class
> {{JniBasedUnixGroupsMappingWithFallback}} and this should be the true value.
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