Scaling In Nodes of a Specific Type
Function
This API is used to remove instances of specific types and reduce instance storage capacity in a cluster. Yearly/Monthly clusters do not support the removal of specified node types by calling this API.
URI
POST /v1.0/extend/{project_id}/clusters/{cluster_id}/role/shrink
Parameter | Mandatory | Type | Description |
---|---|---|---|
project_id | Yes | String | Parameter description: The project ID. For details about how to obtain the project ID and name, see Obtaining the Project ID and Name. Constraints: N/A Options: For details about how to obtain the project ID and name, see Obtaining the Project ID and Name. Default value: N/A |
cluster_id | Yes | String | Parameter description: Specifies the ID of the cluster to be scaled in. For details, see Obtaining the Cluster ID. Constraints: N/A Options: For details about how to obtain the cluster ID, see Obtaining the Cluster ID. Default value: N/A |
Request Parameters
Parameter | Mandatory | Type | Description |
---|---|---|---|
shrink | Yes | Array of ShrinkNodeReq objects | Parameter description: Type and quantity of nodes you want to scale in. |
agency_name | No | String | Parameter description: Agency name. You can create an agency to allow CSS to call other cloud services. Constraints: This parameter is mandatory when the new IAM plane is connected. This parameter is optional when the old IAM plane is connected. Options: VPC permissions required by the agency: "vpc:subnets:get","vpc:ports:*". Default value: N/A |
Parameter | Mandatory | Type | Description |
---|---|---|---|
reducedNodeNum | Yes | Integer | Parameter description: Number of nodes you want to reduce.
For a cluster with master nodes, the number of removed master nodes in a scale-in must be fewer than half of the number of the original master nodes. After scale-in, there has to be an odd number of master nodes, and there has to be at least three of them. |
type | Yes | String | Parameter description: Node type. Options:
|
Response Parameters
None
Example Requests
Scale in a cluster by scaling in specified type of nodes.
POST /v1.0/6204a5bd270343b5885144cf9c8c158d/clusters/4f3deec3-efa8-4598-bf91-560aad1377a3/role/shrink{"shrink" : [ {"type" : "ess","reducedNodeNum" : 1} ]}
Example Responses
None
Status Codes
Status Code | Description |
---|---|
200 | Request succeeded. |
400 | Invalid request. Modify the request before retry. |
409 | The request could not be completed due to a conflict with the current state of the resource. The resource that the client attempts to create already exists, or the update request fails to be processed because of a conflict. |
412 | The server did not meet one of the preconditions contained in the request. |
Error Codes
See Error Codes.
- URI