Creating a Cluster on GCP
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Use preemptible instances

The "Use Preemptible Instances" option, available for each host group, allows you to use preemptible instances for all VMs on a given host group.

The option to use preemptible instances on GCP is available on the Hardware and Storage page of the create cluster wizard. To use this option:
  1. In create cluster wizard, navigate to the Hardware and Storage page.
  2. For each host group, check the Use Preemptible Instances option to use Google Cloud preemptive VM instances as your cluster nodes.

Note that:

  • We recommend not using preemptible instances for any host group that includes Ambari server components.
  • If you choose to use preemptible instances for a given host group when creating your cluster, any nodes that you add to that host group (during cluster creation or later) will be using preemptible instances.
  • If you decide not to use preemptible instances when creating your cluster, any nodes that you add to your host group (during cluster creation or later) will be using standard on-demand instances.
  • Once someone outbids you, the preemptible instances are taken away, removing the nodes from the cluster.
  • If the preemptible instances are not available right away, creating a cluster will take longer than usual.

To learn more, refer to Google Cloud Platform documentation.