Class InstanceSelection (5.30.0) 

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.
disk_config google.cloud.dataproc_v1.types.DiskConfig
Optional. Disk configuration to apply to the instances in this instance selection. If specified on any entry in instanceSelectionList, then it must be specified on every entry in instanceSelectionList and the instanceGroupConfig must not specify any diskConfig.