Scale a node pool-阿里云帮助中心

Call the ModifyClusterNodePool operation to scale a node pool.

Debug

You can call this operation in OpenAPI Explorer. This eliminates the need to calculate signatures. After a successful call, OpenAPI Explorer automatically generates SDK code examples.

Request syntax

PUT /clusters/ClusterId/nodepools/NodepoolId HTTP/1.1
Content-Type:application/json
{
    "scaling_group": {
        "desired_size": Long
    }
}

Request parameters

Table 1. Path parameters
Parameter Name	Type	Required	Example	Description
ClusterId	String	Yes	c23421cfa74454bc8b37163fd19af****	The cluster ID.
NodepoolId	String	Yes	np31da1b38983f4511b490fc62108a****	The node pool ID.

Table 2. Body parameters
Parameter	Type	Required	Example	Description
desired_size	Long	No	1	The expected number of nodes in the node pool. Adjust this parameter to scale the node pool. Due to the quota limit on the number of nodes in a cluster, you can add a maximum of 500 nodes in a single scale-out operation.

Response body syntax

HTTP/1.1 200 
Content-Type:application/json 
{
  "task_id" : "String" 
}

Response parameters

Table 3. Body parameters
Parameter Name	Type	Example	Description
task_id	String	T-5faa48fb31b6b8078d00****	The task ID.

Example of scaling out a node pool

Sample request

PUT /clusters/c23421cfa74454bc8b37163fd19af****/nodepools/np31da1b38983f4511b490fc62108a**** HTTP/1.1  
Content-Type:application/json 
{
  "scaling_group":{"desired_size":1}
}

Sample response

XML format

HTTP/1.1 200 OK 
Content-Type:application/xml 

<task_id>T-5faa48fb31b6b8078d00****</task_id>

JSON format

HTTP/1.1 200 OK 
Content-Type:application/json 

{  
  "task_id" : "T-5faa48fb31b6b8078d00****" 
}

Error codes

For more information, see Error Center.

Developer resources

SDK
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OpenAPI Explorer
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Cloud Assistant CLI
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