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https://issues.apache.org/jira/browse/HADOOP-8712?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13559455#comment-13559455
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Chris Nauroth commented on HADOOP-8712:
---------------------------------------
This change breaks on Windows (branch-trunk-win) due to lack of a Windows
implementation for the native method in hadoop.dll. The fallback logic is a
one-time check to see if hadoop.dll loaded successfully, so with this kind of
failure, it won't fall back to {{ShellBasedUnixGroupsMapping}}. I've filed
HADOOP-9232 to track it. Meanwhile, a workaround on Windows is to set the
configuration back to {{ShellBasedUnixGroupsMapping}} manually in core-site.xml:
{code}
<property>
<name>hadoop.security.group.mapping</name>
<value>org.apache.hadoop.security.JniBasedUnixGroupsMappingWithFallback</value>
</property>
{code}
> Change default hadoop.security.group.mapping
> --------------------------------------------
>
> Key: HADOOP-8712
> URL: https://issues.apache.org/jira/browse/HADOOP-8712
> Project: Hadoop Common
> Issue Type: Improvement
> Components: security
> Affects Versions: 2.0.2-alpha
> Reporter: Robert Parker
> Assignee: Robert Parker
> Priority: Minor
> Fix For: 3.0.0, 2.0.3-alpha
>
> Attachments: HADOOP-8712-v1.patch, HADOOP-8712-v2.patch
>
>
> Change the hadoop.security.group.mapping in core-site to
> JniBasedUnixGroupsNetgroupMappingWithFallback
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