autoscaller donot work after changing min and max limits

[mohmagdy]

i have cluster autoscaler installed , initially my max cluster size was 2 and then i removed the autoscaler and reinstall it with higher cluster size of 10 , however the autoscaling donot work and i am getting below error in autoscaler pod logs

static_autoscaler.go:245] Failed to scale up: failed to increase node group size: ValidationError: New SetDesiredCapacity value 3 is above max value 2 for the AutoScalingGroup.

kubectl version Client Version: version.Info{Major:"1", Minor:"7", GitVersion:"v1.7.11", GitCommit:"b13f2fd682d56eab7a6a2b5a1cab1a3d2c8bdd55", GitTreeState:"clean", BuildDate:"2017-11-25T18:34:52Z", GoVersion:"go1.8.3", Compiler:"gc", Platform:"linux/amd64"} Server Version: version.Info{Major:"1", Minor:"7", GitVersion:"v1.7.11", GitCommit:"b13f2fd682d56eab7a6a2b5a1cab1a3d2c8bdd55", GitTreeState:"clean", BuildDate:"2017-11-25T17:51:39Z", GoVersion:"go1.8.3", Compiler:"gc", Platform:"linux/amd64"}

and autosacler yaml file ` serviceAccountName: cluster-autoscaler containers:

• name: cluster-autoscaler image: gcr.io/google_containers/cluster-autoscaler:v0.6.0 livenessProbe: httpGet: path: /health-check port: 8085 readinessProbe: httpGet: path: /health-check port: 8085 resources: limits: cpu: 100m memory: 300Mi requests: cpu: 100m memory: 300Mi command:
  • ./cluster-autoscaler
  • --cloud-provider=aws
  • --nodes=4:10:nodes.MYDOMAIN env:
  • name: AWS_REGION value: us-east-1 volumeMounts:
  • name: ssl-certs mountPath: /etc/ssl/certs/ca-certificates.crt readOnly: true `

[r-divakaran-hrs]

Hey @mohmagdy how did you create the kubernetes cluster, using KOPS !? If yes, verify if the min and max size of nodes set via KOPS matches to what is configured in autoscaler.

[aleksandra-malinowska]

On AWS, ASG limits must match (or exceed) those set for CA. Also see #647 for more information about this setup.