Details
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Improvement
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Status: Patch Available
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Major
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Resolution: Unresolved
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Description
Ran some simulations with the default queue_utilization_ordering_policy:
An underutilized queue which receives an application with many (thousands) resource requests will hog scheduler allocations for a long time (on the order of a minute). In the meantime apps are getting submitted to all other queues, which increases activeUsers in these queues, which drops user limit in these queues to small values if minimum-user-limit-percent is configured to small values (e.g. 10%).
To avoid this issue, we assign to queues with equal probability, to avoid scenarios where queues don't get allocations for a long time.
