Capacity scheduler LeafQueues maximum capacity calculation issues
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Key: MAPREDUCE-3683
URL: https://issues.apache.org/jira/browse/MAPREDUCE-3683
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: mrv2
Affects Versions: 0.23.0
Reporter: Thomas Graves
Priority: Blocker
In the Capacity scheduler if you configure the queues to be hierarchical where
you have root -> parent queue -> leaf queue, the leaf queue doesn't take into
account its parents maximum capacity when calculate its own maximum capacity,
instead it seems to use the parents capacity. Looking at the code its using
the parents absoluteCapacity and I think it should be using the parents
absoluteMaximumCapacity.
It also seems to only use the parents capacity in the leaf queues max capacity
calculation when the leaf queue has a max capacity configured. If the leaf
queues maximum-capacity is not configured, then it can use 100% of the cluster.
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