InstanceGroupConfig(mapping=None, *, ignore_unknown_fields=False, **kwargs)The config settings for Compute Engine resources in an instance group, such as a master or worker group.
Attributes
| Name | Description |
| num_instances |
int
Optional. The number of VM instances in the instance group. For `HA cluster `__ `master_config <#fields.master_config>`__ groups, **must be set to 3**. For standard cluster `master_config <#fields.master_config>`__ groups, **must be set to 1**. |
| instance_names |
Sequence[str]
Output only. The list of instance names. Dataproc derives the names from ``cluster_name``, ``num_instances``, and the instance group. |
| image_uri |
str
Optional. The Compute Engine image resource used for cluster instances. The URI can represent an image or image family. Image examples: - ``https://www.googleapis.com/compute/beta/projects/[project_id]/global/images/[image-id]`` - ``projects/[project_id]/global/images/[image-id]`` - ``image-id`` Image family examples. Dataproc will use the most recent image from the family: - ``https://www.googleapis.com/compute/beta/projects/[project_id]/global/images/family/[custom-image-family-name]`` - ``projects/[project_id]/global/images/family/[custom-image-family-name]`` If the URI is unspecified, it will be inferred from ``SoftwareConfig.image_version`` or the system default. |
| machine_type_uri |
str
Optional. The Compute Engine machine type used for cluster instances. A full URL, partial URI, or short name are valid. Examples: - ``https://www.googleapis.com/compute/v1/projects/[project_id]/zones/us-east1-a/machineTypes/n1-standard-2`` - ``projects/[project_id]/zones/us-east1-a/machineTypes/n1-standard-2`` - ``n1-standard-2`` **Auto Zone Exception**: If you are using the Dataproc `Auto Zone Placement |
| disk_config |
google.cloud.dataproc_v1.types.DiskConfig
Optional. Disk option config settings. |
| is_preemptible |
bool
Output only. Specifies that this instance group contains preemptible instances. |
| preemptibility |
google.cloud.dataproc_v1.types.InstanceGroupConfig.Preemptibility
Optional. Specifies the preemptibility of the instance group. The default value for master and worker groups is ``NON_PREEMPTIBLE``. This default cannot be changed. The default value for secondary instances is ``PREEMPTIBLE``. |
| managed_group_config |
google.cloud.dataproc_v1.types.ManagedGroupConfig
Output only. The config for Compute Engine Instance Group Manager that manages this group. This is only used for preemptible instance groups. |
| accelerators |
Sequence[google.cloud.dataproc_v1.types.AcceleratorConfig]
Optional. The Compute Engine accelerator configuration for these instances. |
| min_cpu_platform |
str
Optional. Specifies the minimum cpu platform for the Instance Group. See `Dataproc -> Minimum CPU Platform |
Inheritance
builtins.object > proto.message.Message > InstanceGroupConfigClasses
Preemptibility
Preemptibility(value)Controls the use of preemptible instances within the group.