steep-window-46329
12/13/2022, 10:39 AMkube-reserved
, system-reserved
) set per default on kubernetes and rancher. So there are evictions happening and in most cases just the OOM-Killer of Systemd running wild.
We've set a custom value for eviction-hard
and system-reserved
and this seems to improve the stability of the worker-nodes and in case of low memory, the correct pods are getting killed instead of random system processes.
Is there a general recommendation from Rancher for how much memory and CPU should be reserved on downstream-clusters based on the size of the worker-node? It would help a lot to get some general guidelines. Thanks!
Reserve Compute Resources for System Daemons
https://kubernetes.io/docs/tasks/administer-cluster/reserve-compute-resources/