Updated on 2026-09-02 GMT+08:00

Listing Migration Tasks

Function

This API is used to query the migration task list.

Calling Method

For details, see Calling APIs.

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

    Dependencies

    dcs:migrationTask:list

    List

    -

    -

    -

    -

URI

GET /v2/{project_id}/migration-tasks

Table 1 Path Parameters

Parameter

Mandatory

Type

Description

project_id

Yes

String

Definition

Project ID. For details, see Obtaining a Project ID.

Constraints

N/A

Range

N/A

Default Value

N/A

Table 2 Query Parameters

Parameter

Mandatory

Type

Description

offset

No

Integer

Definition

Offset, which indicates that the generated list is displayed from this offset. For example, if the offset is 3, the generated list is displayed from the fourth record.

Constraints

N/A

Range

The value is greater than or equal to 0.

Default Value

0

limit

No

Integer

Definition

Number of records displayed per page.

Constraints

N/A

Range

1-1000

Default Value

10

name

No

String

Definition

Migration task name.

Constraints

N/A

Range

N/A

Default Value

N/A

Request Parameters

None

Response Parameters

Status code: 200

Table 3 Response body parameters

Parameter

Type

Description

count

Integer

Definition

Number of migration tasks.

Range

N/A

migration_tasks

Array of MigrationTaskList objects

Definition

Migration task list.

Range

N/A

Table 4 MigrationTaskList

Parameter

Type

Description

task_id

String

Definition

Migration task ID.

Range

N/A

task_name

String

Definition

Migration task name.

Range

N/A

status

String

Definition

Status of the migration task.

Range

  • SUCCESS: The task is successful.

  • FAILED: The task failed.

  • MIGRATING: The task is in progress.

  • TERMINATED: The task is terminated.

migration_type

String

Definition

Migration task type.

Range

  • backupfile_import: backup file import

  • online_migration: online migration

migration_method

String

Definition

Migration type.

Range

  • full_amount_migration: full migration

  • incremental_migration: incremental migration

ecs_tenant_private_ip

String

Definition

Private IP address of the migration ECS on the tenant side. This IP address can be added to the whitelist if it is in the same VPC as the private IP address of the target or source Redis.

Range

N/A

data_source

String

Definition

Source Redis address, which is ip:port or a bucket name.

Range

N/A

source_instance_name

String

Definition

Source instance name. If the source instance is a self-hosted Redis instance, this parameter is left empty.

Range

N/A

source_instance_id

String

Definition

Source instance ID. If the source instance is a self-hosted Redis instance, this parameter is left empty.

Range

N/A

target_instance_addrs

String

Definition

Target Redis address. The format is ip:port.

Range

N/A

target_instance_name

String

Definition

Target instance name.

Range

N/A

target_instance_id

String

Definition

Target instance ID.

Range

N/A

created_at

String

Definition

Time when the migration task is created.

Range

N/A

description

String

Definition

Description of the migration task.

Range

N/A

source_instance_status

String

Definition

Source instance status. If the source instance is a self-hosted Redis instance, this parameter is left empty.

Range

N/A

target_instance_status

String

Definition

Status of the target instance.

Range

For details, see DCS Instance Statuses.

source_instance_subnet_id

String

Definition

Source instance subnet ID. If the source instance is a self-hosted Redis instance, this parameter is left empty.

Range

N/A

target_instance_subnet_id

String

Definition

ID of the target instance subnet.

Range

N/A

source_instance_spec_code

String

Definition

Source instance specification code. If the source instance is a self-hosted Redis instance, this parameter is left empty.

Range

N/A

target_instance_spec_code

String

Definition

Specification code of the target instance.

Range

N/A

error_message

String

Definition

Error information.

Range

N/A

released_at

String

Definition

Time when the migration ECS is released.

Range

N/A

version

String

Definition

Migration task version.

Range

N/A

resume_mode

String

Definition

Reconnection mode of the migration tasks.

Range

  • auto: automatic reconnection

  • manual: manual reconnection

supported_features

Array of strings

Definition

Supported features.

Range

N/A

Status code: 400

Table 5 Response body parameters

Parameter

Type

Description

error_msg

String

Definition

Error information.

Range

N/A

error_code

String

Definition

Error code.

Range

For details, see Error Codes.

error_ext_msg

String

Definition

Extended error information. This parameter is not used currently and is set to null.

Range

N/A

Status code: 401

Table 6 Response body parameters

Parameter

Type

Description

error_msg

String

Definition

Error information.

Range

N/A

error_code

String

Definition

Error code.

Range

For details, see Error Codes.

error_ext_msg

String

Definition

Extended error information. This parameter is not used currently and is set to null.

Range

N/A

Status code: 403

Table 7 Response body parameters

Parameter

Type

Description

error_msg

String

Definition

Error information.

Range

N/A

error_code

String

Definition

Error code.

Range

For details, see Error Codes.

error_ext_msg

String

Definition

Extended error information. This parameter is not used currently and is set to null.

Range

N/A

Status code: 404

Table 8 Response body parameters

Parameter

Type

Description

error_msg

String

Definition

Error information.

Range

N/A

error_code

String

Definition

Error code.

Range

For details, see Error Codes.

error_ext_msg

String

Definition

Extended error information. This parameter is not used currently and is set to null.

Range

N/A

Status code: 500

Table 9 Response body parameters

Parameter

Type

Description

error_msg

String

Definition

Error information.

Range

N/A

error_code

String

Definition

Error code.

Range

For details, see Error Codes.

error_ext_msg

String

Definition

Extended error information. This parameter is not used currently and is set to null.

Range

N/A

Example Requests

GET https://{dcs_endpoint}/v2/666486c2d9b948c1bbea57e714d744fa/migration-tasks?offset=0&limit=10&name=dcs-migration-i9qk

Example Responses

Status code: 200

Querying the migration task list.

{
  "count" : 1,
  "migration_tasks" : [ {
    "task_id" : "2944a563-6f27-4604-9c16-a9a53cd95cc7",
    "task_name" : "dcs-migration-test-6-16",
    "status" : "TERMINATED",
    "migration_type" : "online_migration",
    "migration_method" : "incremental_migration",
    "ecs_tenant_private_ip" : "192.168.6.44",
    "data_source" : "192.168.0.200:6379",
    "source_instance_name" : "migration-resource",
    "source_instance_id" : "132e0017-715b-4556-930a-95c7db7e8f7a",
    "target_instance_addrs" : "192.168.0.153:6379",
    "target_instance_name" : "migration-target",
    "target_instance_id" : "eb1a8d1c-9ea6-4fcd-ac43-c3d3c2493f06",
    "created_at" : "2021-06-16T06:12:55.508Z",
    "description" : "dcs-test",
    "source_instance_status" : "RUNNING",
    "target_instance_status" : "RUNNING",
    "source_instance_subnet_id" : "192.168.0.1",
    "target_instance_subnet_id" : "192.168.0.2",
    "source_instance_spec_code" : "redis.single.xu1.tiny.128",
    "target_instance_spec_code" : "redis.single.xu1.tiny.128",
    "error_message" : null,
    "released_at" : "2024-04-01T10:57:00.000Z",
    "version" : "6.0.21",
    "resume_mode" : "auto",
    "supported_features" : [ ]
  } ]
}

SDK Sample Code

The SDK sample code is as follows.

Java

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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.dcs.v2.region.DcsRegion;
import com.huaweicloud.sdk.dcs.v2.*;
import com.huaweicloud.sdk.dcs.v2.model.*;


public class ListMigrationTaskSolution {

    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);

        DcsClient client = DcsClient.newBuilder()
                .withCredential(auth)
                .withRegion(DcsRegion.valueOf("<YOUR REGION>"))
                .build();
        ListMigrationTaskRequest request = new ListMigrationTaskRequest();
        try {
            ListMigrationTaskResponse response = client.listMigrationTask(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());
        }
    }
}

Python

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# coding: utf-8

import os
from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdkdcs.v2.region.dcs_region import DcsRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkdcs.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 = DcsClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(DcsRegion.value_of("<YOUR REGION>")) \
        .build()

    try:
        request = ListMigrationTaskRequest()
        response = client.list_migration_task(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)

Go

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package main

import (
	"fmt"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
    dcs "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dcs/v2"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dcs/v2/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dcs/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 := dcs.DcsClientBuilder().
         WithRegion(region.ValueOf("<YOUR REGION>")).
         WithCredential(auth).
         SafeBuild()


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

    client := dcs.NewDcsClient(hcClient)

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

More

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

Status Code

Description

200

Querying the migration task list.

400

Invalid request.

401

Invalid authentication information.

403

The request is rejected.

404

The requested resource is not found.

500

Internal service error.

Error Codes

See Error Codes.