Hi Everyone, We have a harvester node with the following resources

Allocated CPU: 96C
Allocated Memory: 188GiB
Allocated Storage: 758GiB

Now when we are trying to create VMs (

CPU: 4cores

Memory: 8Gi

)on the node using our custom k8s controller (operator), we observed that

Actual memory usage was close to 35%, but the reserved memory on the Harvester node was almost 99% and VM creation was not going through anymore.

(attached snippet). Can anyone explain me the reason for this and how can we overcome this ?

The reserved value is the request value

@powerful-soccer-11224 please run those 3 commands to get the memory usage, you will find which POD allocates big amount of memory. suspect some already created VM are using wrong memroy size, as in the

create vm

WEBUI, the default memory unit is

Gb

, not

Mb

.

kubectl get pods -A -o yaml | yq e '.items[].metadata.name' -
kubectl get pods -A -o yaml | yq e '.items[].spec.containers[].resources.requests.memory' -
kubectl get pods -A -o yaml | yq e '.items[].spec.containers[].resources.limits.memory' -

Thanks @full-plastic-79795 and @ancient-pizza-13099. Let me try those commands and will update you further