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i am running a job in my AKS cluster with two node pools : user and system node pool
i also want to scale down the user node pool to zero(0) after my job is completed.
what i did:
1) i enabled the cluster-autoscaler and the node is scaling up.
problem :
1) the node is not scaling down to zero because the job is still active (seeking azure queue storage for next triggers).
2) when i delete the completed job manually then only the node is scaling down to zero. but my requirement is not to do manual task here i want that the job will schedule to the system node once completed and the again come back to user node when it receives triggers.
please suggest me some way through which i can achieve that.
@Prem Jha
Is this a batch job that is running that is preventing scale down? Are you able to have the job automatically terminate?
https://learn.microsoft.com/en-us/azure/batch/jobs-and-tasks#job-manager-tasks-and-automatic-termination
Hi no this is a scaledjob i have created in aks with the help of KEDA tool which will continuously check for triggers in azure queue storage and once the KEDA job receives trigger it will scale up the pod but when the pods are gone after completing their job. the node is unable to scale down.
@Prem Jha
There are some reasons that can prevent Cluster Autoscaler from removing nodes. Can you verify if any of these apply to your cluster?
Let me know if this is not the case and we will be happy to work with you further to investigate.
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