Comment by merb

On servers with k8s the default is preempt based on prio, followed by oom kill and ‚newly’ memory qos:

https://kubernetes.io/docs/concepts/scheduling-eviction/pod-...

https://kubernetes.io/docs/concepts/configuration/manage-res...

https://kubernetes.io/docs/concepts/workloads/pods/pod-qos/#... (New feature)

So normally if you overcommit it might be undefined behavior if you not have enough memory. However if everything is fine pods can preempt based on prio to new nodes.

With the right settings only the faulty app might fail. Without it it can be a real pain to find the rouges