Class InstanceSelection (5.21.0) 

InstanceSelection(mapping=None, *, ignore_unknown_fields=False, **kwargs)

Defines machines types and a rank to which the machines types belong.

Attributes
Name Description
machine_types MutableSequence[str]
Optional. Full machine-type names, e.g. "n1-standard-16".
rank int
Optional. Preference of this instance selection. Lower number means higher preference. Dataproc will first try to create a VM based on the machine-type with priority rank and fallback to next rank based on availability. Machine types and instance selections with the same priority have the same preference.