Wilfred Spiegelenburg created YARN-5674:
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Summary: FairScheduler handles "dots" in user names inconsistently
in the config
Key: YARN-5674
URL: https://issues.apache.org/jira/browse/YARN-5674
Project: Hadoop YARN
Issue Type: Bug
Components: fairscheduler
Affects Versions: 2.6.0
Reporter: Wilfred Spiegelenburg
Assignee: Wilfred Spiegelenburg
A user name can contain a dot because it could be used as the queue name we
replace the dot with a defined separator. When defining queues in the
configuration for users containing a dot we expect that the dot is replaced by
the "\_dot\_" string.
In the user limits we do not do that and user limits need a normal dot in the
user name. This is confusing when you create a scheduler configuration in some
places you need to replace in others you do not. This can cause issue when user
limits are not enforced as expected.
We should use one way to specify the user and since the queue naming can not be
changed we should also use the same "\_dot\_" in the user limits and enforce
correctly.
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