title: Can I change GCP Dataproc cluster from Standard (1 master, N workers) to High Availability?
body: <p>I have created a GCP Dataproc cluster with Standard (1 master, N workers). Now I want to upgrade it to  High Availability (3 masters, N workers) -  Is it possible? </p>
  
  <p>I tried GCP, GCP alpha and GCP beta commands. For example GCP beta documented here: <a href="https://cloud.google.com/sdk/gcloud/reference/beta/dataproc/clusters/update" rel="nofollow noreferrer">https://cloud.google.com/sdk/gcloud/reference/beta/dataproc/clusters/update</a>. </p>
  
  <p>It has option to scale worker nodes, however does not have option to switch from standard to high availability mode. Am I correct?</p>