How to set automatic scaling in Google Cloud Managed VM

Question

We are plannig deploy our app on google cloud managed VM. I tried to use automatic scaling. I have changed following parameters as per this doc

https://cloud.google.com/appengine/docs/managed-vms/java/configuring-your-app-with-app-yaml

This is our app.yaml file settings

runtime: java
vm: true
threadsafe: true

automatic_scaling:
  min_idle_instances: 1
  max_idle_instances: 5  # default value
  min_pending_latency: 30ms  # default value
  max_pending_latency: 1000
  max_concurrent_requests: 50

handlers:
- url: /.*
  script: this field is required, but ignored
  secure: always

But when I tried to deploy we are getting following errors

"description": "VM-based automatic scaling should NOT have the following parameter(s): [min_idle_instances, min_pending_latency,max_idle_instances,max_pending_latency ]",
           "field": "version.automatic_scaling"

how to set max,min idle instances number , latency and how to set version number in app.yaml

Answer 1

Sorry! That's a documentation bug (we're fixing it). Automatic scaling is actually enabled on your module by default - you don't need to add any configuration at all to use it. The min_idle_instances and min_pending_latency fields are not supported by Managed VMs. In most cases, you don't need to add any config here at all for autoscaling, it should all 'just work'.