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Make KubernetesStartKueueJobOperator wait through Kueue preemption - #75658
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KubernetesStartKueueJobOperator inherited the KubernetesJobOperator wait, which looks for the Job's pods right after creating it. Kueue keeps the Job suspended without pods until it admits it, and may preempt it (suspend it again and delete its pods) then admit it again, so the task failed to find pods before admission, and after a preemption waited on, or read logs and XCom from, pods that had been deleted. Least-privilege Roles that grant get on jobs but not on jobs/status also got a 403 when job operators and triggers waited for a Job: Kubernetes RBAC checks subresources separately, although the Job object carries the same status. closes: apache#74373
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KubernetesStartKueueJobOperator now watches the Job itself, so it keeps working while Kueue queues it, preempts it or reruns it. Job operators also stop reading jobs/status, so get on jobs is enough.
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