[jira] [Created] (YARN-6261) YARN queue mapping fails for users with no group

["Pierre Villard (JIRA)" <ji...@apache.org>]

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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