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E-MapReduce:DecreaseNodes

更新時間:Oct 17, 2024

Perform a scale-out operation on the target node group.

Debugging

You can run this interface directly in OpenAPI Explorer, saving you the trouble of calculating signatures. After running successfully, OpenAPI Explorer can automatically generate SDK code samples.

Authorization information

There is currently no authorization information disclosed in the API.

Request parameters

ParameterTypeRequiredDescriptionExample
RegionIdstringYes

The ID of the region in which you want to create the instance.

cn-hangzhou
ClusterIdstringYes

The cluster ID.

c-b933c5aac8fe****
NodeGroupIdstringYes

The ID of the node group.

ng-869471354ecd****
DecreaseNodeCountintegerNo

The number of nodes to scale in. The number of nodes to be scaled in. The value should be less than the number of surviving nodes in the current node group.

3
NodeIdsarrayNo

The array of node IDs. Valid values of array element N: 1 to 500.

StringstringNo

The node ID.

i-bp1cudc25w2bfwl5****

Response parameters

ParameterTypeDescriptionExample
object

The data returned.

OperationIdstring

Operation ID.

op-13c37a77c505****
RequestIdstring

The ID of the request.

44430037-E59A-3E66-A2B0-97D155346F22

Examples

Sample success responses

JSONformat

{
  "OperationId": "op-13c37a77c505****",
  "RequestId": "44430037-E59A-3E66-A2B0-97D155346F22"
}

Error codes

HTTP status codeError codeError message
400OperationDeniedThe operation is invalid. %s
400ConcurrentModificationThe request on %s failed due to multiple requests to change this object were submitted simultaneously. Wait a few minutes and try again.
400ConflictParametersParameters that must not be used together. %s
400IncompleteSignatureThe request signature is invalid.
400InvalidActionThe action %s requested is invalid.
400InvalidParameterThe specified parameter %s is not valid.
400InvalidParameterValueThe input parameter %s is invalid or out of range.
400MissingActionThe action %s requested is missing.
400MissingParameterThe input parameter %s that is mandatory for processing this request is not supplied.
400NotAuthorizedYou do not have permission to perform this action. %s
400ThrottlingExceptionThe request was denied due to request throttling. %s
404ResourceNotFoundThe resource not found by %s.
500InternalErrorThe request processing has failed due to some unknown error, exception or failure.
503ServiceFailureThe request has failed due to a temporary failure of %s service.
503ServiceUnavailableThe request has failed due to a temporary failure of the server.

For a list of error codes, visit the Service error codes.

Change history

Change timeSummary of changesOperation
2024-06-18The Error code has changedView Change Details