I upgraded my cluster to use 4vCPU and 8GB memory nodes. The cluster has two of these nodes. I only added the NGINX Ingress Controller as an addon. I deployed two pods, each with 400M cpu limit and request. On the K8s Dashboard it shows that the nodes are each using about 1 CPU and 500M CPU worth of request/limit respectively. So there are still 3 CPUs worth of resources on each of them.
When I try to run a 3rd pod, with 400M CPU limit/request, I get insufficient CPU error.
Here is the request/limit that all three pods have configured. resources: limits: cpu: 400M memory: 400M requests: cpu: 400M memory: 400M
Resource and limit of the two nodes. 1.00 (25.05%) 502.00m (12.55%)
902.00m (22.55%) 502.00m (12.55%)
Error on the pod. Events: Type Reason Age From Message
Warning FailedScheduling <unknown> default-scheduler 0/2 nodes are available: 2 Insufficient cpu. Warning FailedScheduling <unknown> default-scheduler 0/2 nodes are available: 2 Insufficient cpu.
I upgraded my cluster to these more expensive nodes. I feel that the cheaper nodes should have handled my small load, but upgraded anyways. I am not going to upgrade again, 4 CPU and 8GB of ram of more sufficient (and pricey) than what I need, and yet I am still getting insufficient CPU.
This textbox defaults to using Markdown to format your answer.
You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!
These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.