- Check pod resource limits by using
kubectl describe pod ~
- Can check
Last State field from the kubectl describe pod ~ command, to see why pods are killed and go out of memory.
- How to increase the memory of a pod.
- You can see why a pod is being killed via the
kubectl describe command.
- Check the
Command that it is running.
Limits in this case is set to 10Mi.- However,
Requests is set to 5Mi.
- That difference between the
Limits and Requests fields is why the pod is going OOM.
- One way to increase the memory is by
kubectl edit - sometimes it is not possible to change the limit in edit.
- You cannot edit a running pod.
- However, if you do change a running pod, the changes will be set to a temporary file.
- The easier way is using the
kubectl replace --force -f command. This will delete the existing pod and recreate it.
-f is not force in this case.