Open zhucan opened 2 months ago
The priorityClass in volcano also play a role in scheduling and preemption,and job with higher priority can preempt lower job,and also schedule first before lower priority job,but a little difference is that volcano will also consider job's queue priority.
so, The high priority job with "preemptionPolicy: Never" will not be scheduled ahead of other queued pods? @Monokaix
so, The high priority job with "preemptionPolicy: Never" will not be scheduled ahead of other queued pods? @Monokaix
It depends, queue's order is determined by share value, if a queue has a lower share value, jobs in this queue will schedule first. Refer to https://volcano.sh/zh/docs/v1-8-2/plugins/#drf for more detail.
Please provide an in-depth description of the question you have:
for k8s default scheduler: An example use case is for data science workloads. A user may submit a job that they want to be prioritized above other workloads, but do not wish to discard existing work by preempting running pods. The high priority job with preemptionPolicy: Never will be scheduled ahead of other queued pods, as soon as sufficient cluster resources "naturally" become free.
but I don't know clear about the volcano.
What do you think about this question?: if the preemptionPolicy is Never, the high priority jobs will be scheduler always before the low priority jobs or normal jobs?
Environment:
kubectl version
):uname -a
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