Yiqun Lin created HADOOP-13965:
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Summary: 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 the core-default.xml, it uses the class
{{JniBasedUnixGroupsMappingWithFallback}} and this should be a true.
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