Priority vs Preemption

High-priority pods can preempt low. Behaviour.

Idea

When cluster is full, high-priority pods evict low-priority.

Preemption is automatic.

When

Mixed-priority clusters. Production must always run.

Batch jobs accept preemption.

Policy

preemptionPolicy: Never disables for specific pods.

Use for non-critical pods that should wait, not preempt.