Pierre Villard created YARN-6261:
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Summary: YARN queue mapping fails for users with no group
Key: YARN-6261
URL: https://issues.apache.org/jira/browse/YARN-6261
Project: Hadoop YARN
Issue Type: Bug
Reporter: Pierre Villard
*Issue:*
Since Hadoop group mapping can be overridden (to get groups from an AD for
example), it is possible to be in a situation where a user does not have any
group (because the user is not in the AD but only defined locally):
{noformat}
$ hdfs groups zeppelin
zeppelin:
{noformat}
In this case, if the YARN Queue Mapping is configured and contains at least one
mapping of {{MappingType.GROUP}}, it won't be possible to get a queue for the
job submitted by such a user and the job won't be submitted at all.
*Expected result:*
In case a user does not have any group and no mapping is defined for this user,
the default queue should be assigned whatever the queue mapping definition is.
*Workaround:*
A workaround is to define a group mapping of {{MappingType.USER}} for the given
user before defining any mapping of {{MappingType.GROUP}}.
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