StartNodes - Elastic High Performance Computing - Alibaba Cloud Documentation Center

Starts one or more nodes in a cluster.

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RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.
API: The API that you can call to perform the action.
Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.
Resource type: The type of the resource that support authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.
- For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.
- For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.
Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.
Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

ehpc:StartNodes

update

*All Resource

*

None

Request parameters

Parameter	Type	Required	Description	Example
ClusterId	string	Yes	The ID of the cluster. Call ListClusters to obtain the cluster ID.	ehpc-hz-FYUr32****
Role	string	No	The role of the nodes. Valid values: Manager: management node Login: logon node Compute: compute node Default value: Compute	Compute
Instance	array<object>	Yes	A list of nodes to start.
	object	No	An array of node information.
Id	string	No	The instance ID of the node to start. You can specify up to 100 nodes. Ensure that the node is in the Stopped state. You can call ListNodes to query the status of the node.	i-bp13p7vlcb1uihfv****

Response parameters

Parameter	Type	Description	Example
	object
TaskId	string	The ID of the task.	04F0F334-1335-436C-A1D7-6C044FE7****
RequestId	string	The ID of the request.	04F0F334-1335-436C-A1D7-6C044FE7****

Examples

Success response

JSON format

{
  "TaskId": "04F0F334-1335-436C-A1D7-6C044FE7****",
  "RequestId": "04F0F334-1335-436C-A1D7-6C044FE7****"
}

Error codes

HTTP status code	Error code	Error message	Description
400	InvalidParams	The specified parameter %s is invalid.	The specified parameter %s is invalid.
400	NotEnabled	You have not enabled this service	You have not enabled this service
500	UnknownError	An unknown error occurred.	An unknown error occurred.
403	InvalidClusterStatus	The operation failed due to invalid cluster status.	The cluster status does not support the operation.
403	InvalidNodeStatus	The operation failed due to invalid node status.
403	ConflictOpt	A conflicting operation is running.	A conflicting operation is running. Please try again later.
404	ClusterNotFound	The specified cluster does not exist.	The specified instance does not exist.
404	ComputeNotFound	The specified compute node does not exist.	The specified compute node does not exist.
404	ManagerNotFound	The manager nodes do not exist or their status is abnormal.	The manager nodes do not exist or their status is abnormal.
404	ObjectNotFound	The specified object is not found.	The specified object does not exist. Please verify the parameter.
503	ServiceUnavailable	The request has failed due to a temporary failure of the server	The request has failed due to a temporary failure of the server.
406	EcsError	An error occurred while calling the ECS API operation.	ECS API call error. %s
406	EipError	The EIP API request failed.	EIP API request failed.
406	DbError	A database service error occurred.	Database request failed.
406	AliyunError	An Alibaba Cloud product error occurred.	Alibaba Cloud product error. %s
407	NotAuthorized	You are not authorized by RAM for this request.	The request is not authorized by RAM.
409	PartFailure	Part of the batch operation failed.	Part of the batch operation failed.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.