Prabhu Joseph created YARN-6052:
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Summary: Yarn RM UI % of Queue at application level is wrong
Key: YARN-6052
URL: https://issues.apache.org/jira/browse/YARN-6052
Project: Hadoop YARN
Issue Type: Bug
Affects Versions: 2.7.3
Reporter: Prabhu Joseph
Priority: Minor
Test Case:
yarn.scheduler.capacity.root.capacity=100
yarn.scheduler.capacity.root.queues=default,dummy
yarn.scheduler.capacity.root.default.capacity=20
yarn.scheduler.capacity.root.dummy.capacity=80
yarn.scheduler.capacity.root.dummy.child.capacity=50
yarn.scheduler.capacity.root.dummy.child2.capacity=50
Memory Total is 20GB, default queue share is 4GB and dummy queue share is 16GB.
Child and Child1 queue gets 8GB share each.
A map reduce job is submitted to child2 queue which asks 2 containers of 512
MB. Now cluster Memory Used is 1GB.
Root queue usage = 100 / (total memory / used memory) = 100 / (20 / 1) = 5%
Dummy queue usage = 100 / (16 /1) = 6.3%
Dummy.Child2 queue usage = 100 / (8/1) = 12.5%
At application level, % of queue is calculated as 100 / (50% of root queue
capacity) = 100 / (50% of 20GB) = 10.0 instead of
100 / (50% of dummy queue capacity) = 100 / (50% of 16GB) = 100 / 8 = 12.5
Where 50% is dummy.child2 capacity
Attached RM UI screenshot.
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