You are running an application on multiple virtual machines within a managed instance group and have autoscaling enabled. The autoscaling policy is configured so that additional instances are added to the group if the CPU utilization of instances goes above 80%. VMs are added until the instance group reaches its maximum limit of five VMs or until CPU utilization of instances lowers to 80%. The initial delay for HTTP health checks against the instances is set to 30 seconds. The virtual machine instances take around three minutes to become available for users. You observe that when the instance group autoscales, it adds more instances then necessary to support the levels of end-user traffic. You want to properly maintain instance group sizes when autoscaling. What should you do?
Select one answer.
Marked answer: D
Community Discussion
Written by other learners. Comments can disagree with the marked answer — check the official documentation when in doubt.
Chose D1
Gemini says "In GCP's MIG auto-scaling, HTTP health checks generally take priority over CPU utilization" So D is right
Chose D2
If is going to be taking 180 seconds for additional vm to be avaliable then health check of 30second interval would not be ideal. Over provisioning will occur.
