Adding Nodes to a Replica Set Instance

API Description

This API is used to add nodes to a specified replica set instance.

Restrictions

• This API supports both yearly/monthly and pay-per-use DB instances.

URI

• URI format

  POST https://{Endpoint}/v3/{project_id}/instances/{instance_id}/replicaset-node

• URI example
  https://dds.cn-north-1.myhuaweicloud.com/v3/619d3e78f61b4be68bc5aa0b59edcf7b/instances/e73893ef73754465a8bd2e0857bbf13ein02/replicaset-node

  Table 1 Path parameters

  Name	Mandatory	Type	Description
  project_id	Yes	String	Definition Project ID of a tenant in a region. To obtain the project ID, see Obtaining a Project ID. Constraints N/A Range N/A Default Value N/A
  instance_id	Yes	String	Definition Instance ID, which can be obtained by calling the API described in Querying Instances and Details. If you do not have an instance, call the API described in Creating a DB Instance to create one. Constraints N/A Range N/A Default Value N/A

  Table 2 Request header parameters

  Name	Mandatory	Type	Description
  X-Auth-Token	Yes	String	Definition User token obtained from IAM. For details, see Authentication. Constraints N/A Range N/A Default Value N/A

Request Parameters

• Parameter description

  Table 3 Request body parameters

  Name	Mandatory	Type	Description
  num	Yes	Integer	Definition Number of nodes to be added to a replica set instance. Constraints If a replica set instance has three nodes, two or four nodes can be added. If a replica set instance has five nodes, two nodes can be added. Nodes cannot be added to a replica set instance with seven nodes. Range N/A Default Value N/A
  is_auto_pay	No	Boolean	Definition Whether the order is automatically paid from your account when you add nodes to a yearly/monthly DB instance. This parameter does not affect the payment mode of automatic renewal. Constraints N/A Range true: The order is automatically paid from the account. false: The order is manually paid from the account. Default Value false

Example Request

POST https://dds.cn-north-1.myhuaweicloud.com/v3/619d3e78f61b4be68bc5aa0b59edcf7b/instances/e73893ef73754465a8bd2e0857bbf13ein02/replicaset-node 
 
{ 
  "num" : 2 
}

Response Parameters

• Parameter description

  Table 4 Response body parameters

  Name	Type	Description
  job_id	String	Definition Task ID. This parameter is returned only for pay-per-use DB instances. Range N/A
  order_id	String	Definition Order ID. This parameter is returned only when yearly/monthly DB instances are created. Range N/A

• Example response

  { 
    "job_id" : "6ad4eb1f-73bd-4876-aa31-aa9a1e41c4bc" 
  }

Status Code

For details, see Status Code.

Error Code

For details, see Error Code.