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Synopsis
Configure individual settings of an autoscaler configuration profile.
Syntax
Change a setting in an existing autoscaler configuration profile
Set-AksHciAutoScalerProfile
-name myProfile
-autoScalerProfileConfig @{ "max-node-count"=5; "min-node-count"=2 }
Description
Changes one or more individual settings of an existing autoscaler configuration profile to a new value. Possible values to set are:
| ProfileSetting | Value |
|---|---|
| min-node-count | 0 |
| max-node-count | 1 |
| scan-interval | 10 seconds |
| scale-down-delay-after-add | 10 minutes |
| scale-down-delay-after-delete | 10 seconds |
| scale-down-delay-after-failure | 3 minutes |
| scale-down-unneeded-time | 10 minutes |
| scale-down-unready-time | 20 minutes |
| scale-down-utilization-threshold | 0.5 |
| max-graceful-termination-sec | 600 seconds |
| balance-similar-node-groups | false |
| expander | random |
| skip-nodes-with-local-storage | true |
| skip-nodes-with-system-pods | true |
| max-empty-bulk-delete | 10 nodes |
| new-pod-scale-up-delay | 0 seconds |
| max-total-unready-percentage | 45% |
| max-node-provision-time | 15 minutes |
| ok-total-unready-count | 3 nodes |
Examples
Change the minimum and maximum node count
Setting the max-node-count too high can result in failures should the system run out of resources. If that happens. Change the value to a lower setting and wait for the system to catch up. This process can take up to 90 minutes with the default settings.
Set-AksHciAutoScalerProfile -name myProfile -autoScalerProfileConfig @{ "max-node-count"=5; "min-node-count"=2 }
Change the time the system waits between scale attempts to 1 minute.
Setting this too low, for example, to 1 second could result in excessive node creation/deletion cycles if this happens. Use the Set-AksHciCluster -name myCluster -enableAutoScaler $false command to turn off the autoscaler. Modify the profile to a more moderate value and then re-enable the autoscaler to recover more gracefully.
Set-AksHciAutoScalerProfile -name myProfile -autoScalerProfileConfig @{ "scan-interval"="1m" }
Change the time the system waits for a new node to be ready.
Set-AksHciAutoScalerProfile -name myProfile -autoScalerProfileConfig @{ "scan-interval"="1m" }
Parameters
-name
The alphanumeric name of your Kubernetes cluster.
Type: System.String
Parameter Sets: (All)
Aliases:
Required: True
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False
-autoScalerProfileConfig
An array of key-value pairs of parameters to set for the autoscaler configuration profile
Type: System.Array
Parameter Sets: (All)
Aliases:
Required: False
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False