Brandon Scheller created YARN-9088:
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Summary: Non-exclusive labels break QueueMetrics
Key: YARN-9088
URL: https://issues.apache.org/jira/browse/YARN-9088
Project: Hadoop YARN
Issue Type: Bug
Components: capacity scheduler, resourcemanager
Affects Versions: 2.8.5
Reporter: Brandon Scheller
QueueMetrics are broken (random/negative values) when non-exclusive labels are
being used and unlabeled containers run on labeled nodes.
This is caused by the change in the patch here:
https://issues.apache.org/jira/browse/YARN-6467
It assumes that a container's label will be the same as the node's label that
it is running on.
If you look within the patch, sometimes metrics are updated using the
request.getNodeLabelExpression(). And sometimes they are updated using
node.getPartition().
This means that in the case where the node is labeled while the request isn't,
these metrics only get updated when referring to the default queue. This stops
metrics from balancing out and results in incorrect and negative values in
QueueMetrics.
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