Help Center/ MapReduce Service/ API Reference/ API V2/ Data Connection Management/ Deleting a Data Connection - DeleteDataConnector
Updated on 2026-09-15 GMT+08:00

Deleting a Data Connection - DeleteDataConnector

Function

This API is used to delete a data connection that has been created in the MRS service. Before deletion, ensure that the data connection is not referenced by any jobs or services in the cluster. Otherwise, related functions may be abnormal.

Constraints

None

Debugging

You can debug this API in API Explorer, which supports automatic authentication and authorization. API Explorer can automatically generate sample SDK code and supports sample SDK code debugging.

Authorization Information

Each account has all the permissions required to call all APIs, but IAM users must be assigned the required permissions.

  • If you are using role/policy-based authorization, see Permissions Policies and Supported Actions for details on the required permissions.
  • If you are using identity policy-based authorization, the following identity policy-based permissions are required.

    Action

    Access Level

    Resource Type (*: required)

    Condition Key

    Alias

    Dependency

    mrs:dataConnector:updateInstance

    Write

    -

    -

    -

    -

URI

DELETE /v2/{project_id}/data-connectors/{connector_id}

Table 1 URI parameters

Parameter

Mandatory

Type

Description

connector_id

Yes

String

Definition

Connection ID.

Constraints

N/A

Range

The value can contain 1 to 64 characters. Only letters, digits, underscores (_), and hyphens (-) are allowed.

Default Value

N/A

project_id

Yes

String

Definition

Project ID. For details about how to obtain the project ID, see Obtaining a Project ID.

Constraints

N/A

Range

The value must consist of 1 to 64 characters. Only letters and digits are allowed.

Default Value

N/A

Request Parameters

None

Response Parameters

Status code: 204

Data connection deleted successfully.

None

Example Request

None

Example Response

None

SDK Sample Code

The SDK sample code is as follows.

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package com.huaweicloud.sdk.test;

import com.huaweicloud.sdk.core.auth.ICredential;
import com.huaweicloud.sdk.core.auth.BasicCredentials;
import com.huaweicloud.sdk.core.exception.ConnectionException;
import com.huaweicloud.sdk.core.exception.RequestTimeoutException;
import com.huaweicloud.sdk.core.exception.ServiceResponseException;
import com.huaweicloud.sdk.mrs.v2.region.MrsRegion;
import com.huaweicloud.sdk.mrs.v2.*;
import com.huaweicloud.sdk.mrs.v2.model.*;


public class DeleteDataConnectorSolution {

    public static void main(String[] args) {
        // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
        // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
        String ak = System.getenv("CLOUD_SDK_AK");
        String sk = System.getenv("CLOUD_SDK_SK");
        String projectId = "{project_id}";

        ICredential auth = new BasicCredentials()
                .withProjectId(projectId)
                .withAk(ak)
                .withSk(sk);

        MrsClient client = MrsClient.newBuilder()
                .withCredential(auth)
                .withRegion(MrsRegion.valueOf("<YOUR REGION>"))
                .build();
        DeleteDataConnectorRequest request = new DeleteDataConnectorRequest();
        request.withConnectorId("{connector_id}");
        try {
            DeleteDataConnectorResponse response = client.deleteDataConnector(request);
            System.out.println(response.toString());
        } catch (ConnectionException e) {
            e.printStackTrace();
        } catch (RequestTimeoutException e) {
            e.printStackTrace();
        } catch (ServiceResponseException e) {
            e.printStackTrace();
            System.out.println(e.getHttpStatusCode());
            System.out.println(e.getRequestId());
            System.out.println(e.getErrorCode());
            System.out.println(e.getErrorMsg());
        }
    }
}
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# coding: utf-8

import os
from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdkmrs.v2.region.mrs_region import MrsRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkmrs.v2 import *

if __name__ == "__main__":
    # The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
    # In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
    ak = os.environ["CLOUD_SDK_AK"]
    sk = os.environ["CLOUD_SDK_SK"]
    projectId = "{project_id}"

    credentials = BasicCredentials(ak, sk, projectId)

    client = MrsClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(MrsRegion.value_of("<YOUR REGION>")) \
        .build()

    try:
        request = DeleteDataConnectorRequest()
        request.connector_id = "{connector_id}"
        response = client.delete_data_connector(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)
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package main

import (
	"fmt"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
    mrs "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/mrs/v2"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/mrs/v2/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/mrs/v2/region"
)

func main() {
    // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
    // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
    ak := os.Getenv("CLOUD_SDK_AK")
    sk := os.Getenv("CLOUD_SDK_SK")
    projectId := "{project_id}"

    auth, err := basic.NewCredentialsBuilder().
        WithAk(ak).
        WithSk(sk).
        WithProjectId(projectId).
        SafeBuild()

    if err != nil {
        fmt.Println(err)
        return
    }

    hcClient, err := mrs.MrsClientBuilder().
         WithRegion(region.ValueOf("<YOUR REGION>")).
         WithCredential(auth).
         SafeBuild()


    if err != nil {
        fmt.Println(err)
        return
    }

    client := mrs.NewMrsClient(hcClient)

    request := &model.DeleteDataConnectorRequest{}
	request.ConnectorId = "{connector_id}"
	response, err := client.DeleteDataConnector(request)
	if err == nil {
        fmt.Printf("%+v\n", response)
    } else {
        fmt.Println(err)
    }
}

For SDK sample code of more programming languages, see the Sample Code tab in API Explorer. SDK sample code can be automatically generated.

Status Codes

See Status Codes.

Error Codes

See Error Codes.