You can call this operation to delete a shard or mongos node in a sharded cluster instance.

Before you call this operation, make sure that the following requirements are met:

  • The instance is in the running state.
  • The instance is a sharded cluster instance.
  • The billing method of the instance is pay-as-you-go.
  • The number of the shard or mongos nodes in the instance is greater than two.


OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer. OpenAPI Explorer dynamically generates the sample code of the operation for different SDKs.

Request parameters

Parameter Type Required Example Description
Action String Yes DeleteNode

The operation that you want to perform. Set the value to DeleteNode.

DBInstanceId String Yes dds-bpxxxxxxxx

The ID of the instance.

NodeId String Yes s-bpxxxxxxxx

The ID of the shard or mongos node to be deleted. You can call the DescribeDBInstanceAttribute operation to query the node ID.

ClientToken String No ETnLKlblzczshOTUbOCzxxxxxxxxxx

The client token that is used to ensure the idempotence of the request. You can use the client to generate the value, but you must make sure that it is unique among different requests. The token can contain only ASCII characters and cannot exceed 64 characters in length.

RegionId String No cn-hangzhou

The region ID of the instance. You can call the DescribeRegions operation to query the region ID of the instance.

Response parameters

Parameter Type Example Description
OrderId String 111111111111111

The order ID of the instance.

RequestId String 9F9BDE64-BF30-41F3-BD29-C19CE4AB3404

The ID of the request.

TaskId Integer 111111111

The ID of the task.


Sample requests

http(s):// Action=DeleteNode
&<Common request parameters>

Sample success responses

XML format


JSON format

	"TaskId": 111111111,
	"RequestId": "04BDBD93-3B59-496C-8B5E-7FF158E10C5C",
	"OrderId": "111111111111111"

Error codes

For a list of error codes, visit the API Error Center.