Querying a Migration Task Group

Function

This API is used to query the information about a migration task group with a specified ID.

Calling Method

For details, see Calling APIs.

URI

GET /v2/{project_id}/taskgroups/{group_id}

**Table 1** Path parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	The project ID. Minimum length: 1 character Maximum length: 1,024 characters
group_id	Yes	String	The task group ID. Minimum length: 1 character Maximum length: 1,024 characters

Request

**Table 2** Request header parameters
Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	The token used for IAM authentication. Minimum length: 1 character Maximum length: 16,384 characters

Response

Status code: 200

**Table 3** Response body parameters
Parameter	Type	Description
group_id	String	The task group ID. Minimum length: 1 character Maximum length: 100 characters
status	Integer	The migration task group status. 0: Waiting, 1: Executing/Creating, 2: Monitoring, 3: Paused, 4: Creation failed, 5: Migration failed, 6: Migration completed, 7: Pausing, 8: Waiting for deletion, 9: Deleted Minimum value: 0 Maximum value: 9
error_reason	ErrorReasonResp object	The task group failure cause. The value is an empty string if the task is not in the Migration failed state.
src_node	TaskGroupSrcNodeResp object	The source information.
description	String	The task group description, which cannot exceed 255 characters. The following special characters are not allowed: ^<>&"' Minimum length: 0 characters Maximum length: 255 characters
dst_node	TaskGroupDstNodeResp object	The destination information.
enable_metadata_migration	Boolean	Indicates whether metadata migration is enabled. The default value is false. Even if this function is disabled, the ContentType metadata will still migrated to ensure a successful migration. Default value: false
enable_failed_object_recording	Boolean	Indicates whether to record the objects that failed to be migrated.
enable_restore	Boolean	Indicates whether to restore archive data in the source bucket. It takes a long time to restore archive data in the source bucket, which will greatly slow down the migration speed. You are advised to restore the archive objects before the migration. After this function is enabled, archive objects will be automatically restored and then migrated. By default, this function is disabled, archive objects will be ignored during the migration, and the information about these objects will be recorded in the list of failed objects.
enable_kms	Boolean	Indicates whether to use KMS to encrypt the data to be stored in the destination OBS bucket.
task_type	String	The task type. The default value is PREFIX. LIST indicates that the system will migrate the objects specified in the object list. URL _LIST indicates that the system will migrate the objects specified in the URL list. PREFIX indicates that the system will migrate the objects with a specific prefix. Value options are as follows: LIST URL_LIST PREFIX
bandwidth_policy	Array of BandwidthPolicyDto objects	The traffic limiting rules. Each element in the array corresponds to the maximum bandwidth in a time period. A maximum of five periods are allowed, and the periods cannot overlap. Array length: 0 to 5
smn_config	SmnInfo object	The SMN message sending configuration.
source_cdn	SourceCdnResp object	Indicates whether migration from CDN is enabled. If this field is contained, migration from CDN is supported. Otherwise, it is not supported. If migration from CDN is enabled, the source objects to be migrated are obtained from the specified CDN domain name during migration.
migrate_since	Long	The specified migration time (timestamp, in milliseconds). Only source objects that are modified after the specified time will be migrated. Default value 0 indicates that no time is specified. Minimum value: 0 Maximum value: 9223372036854775807 Default value: 0
migrate_speed	Long	The migration speed (byte/s). Minimum value: 0 Maximum value: 9223372036854775807
total_time	Long	The total amount of time used by the migration task group, in ms. Minimum value: 0 Maximum value: 9223372036854775807
start_time	Long	The start time (Unix timestamp, in millisecond) of the migration task group. Minimum value: 0 Maximum value: 9223372036854775807
total_task_num	Long	The total number of migration tasks in the task group. Minimum value: 0 Maximum value: 9223372036854775807
create_task_num	Long	The number of created migration tasks in the task group. Minimum value: 0 Maximum value: 9223372036854775807
failed_task_num	Long	The number of failed migration tasks in the task group. Minimum value: 0 Maximum value: 9223372036854775807
complete_task_num	Long	The number of completed migration tasks in the task group. Minimum value: 0 Maximum value: 9223372036854775807
paused_task_num	Long	The number of paused migration tasks in the task group. Minimum value: 0 Maximum value: 9223372036854775807
executing_task_num	Long	The number of executing migration tasks in the task group. Minimum value: 0 Maximum value: 9223372036854775807
waiting_task_num	Long	The number of waiting migration tasks in the task group. Minimum value: 0 Maximum value: 9223372036854775807
total_num	Long	The total number of objects to be migrated in the migration task group. Minimum value: 0 Maximum value: 9223372036854775807
create_complete_num	Long	The total number of objects contained in created migration tasks. Minimum value: 0 Maximum value: 9223372036854775807
success_num	Long	The number of migrated objects. Minimum value: 0 Maximum value: 9223372036854775807
fail_num	Long	The number of failed objects. Minimum value: 0 Maximum value: 9223372036854775807
skip_num	Long	The number of skipped objects. Minimum value: 0 Maximum value: 9223372036854775807
total_size	Long	The size (in bytes) of the objects that have been migrated. Minimum value: 0 Maximum value: 9223372036854775807
create_complete_size	Long	The total size (in bytes) of objects migrated in created migration tasks. Minimum value: 0 Maximum value: 9223372036854775807
complete_size	Long	The total size of migrated objects, in bytes. Minimum value: 0 Maximum value: 9223372036854775807
failed_object_record	FailedObjectRecordDto object	The record of failed objects.
object_overwrite_mode	String	Indicates whether to skip a source object or allow the source object to overwrite its paired destination object. The default value is SIZE_LAST_MODIFIED_COMPARISON_OVERWRITE. NO_OVERWRITE: indicates the system never allows overwrite. The system always skips source objects and keeps their paired destination objects. SIZE_LAST_MODIFIED_COMPARISON_OVERWRITE: indicates the system allows overwrite based on the results of size or modification time checks. It is the default setting. If a source object is not as large as or was last modified more recently than its paired destination object, the source object will overwrite the destination object. Otherwise, the source object will be skipped. CRC64_COMPARISON_OVERWRITE: indicates the system allows overwrite if the source and destination objects have different CRC64 checksums. This option is only available for migration on Huawei Cloud or from Alibaba Cloud or Tencent Cloud. If a source object has a CRC64 checksum different from the paired destination object, the source object will overwrite the destination object. Otherwise, the source object will be skipped. If one of them does not have a CRC64 checksum, their sizes and last modification times are checked. FULL_OVERWRITE: indicates the system always allows overwrite. The system always allows source objects to overwrite their paired destination objects. Value options are as follows: NO_OVERWRITE SIZE_LAST_MODIFIED_COMPARISON_OVERWRITE CRC64_COMPARISON_OVERWRITE FULL_OVERWRITE
dst_storage_policy	String	The destination storage class. STANDARD indicates the Huawei Cloud OBS Standard. IA indicates the Huawei Cloud OBS Infrequent Access. ARCHIVE indicates the Huawei Cloud OBS Archive. DEEP_ARCHIVE indicates the Huawei Cloud OBS Deep Archive. SRC_STORAGE_MAPPING converts the source storage class into an OBS storage class based on the predefined rules. Default value: STANDARD Minimum length: 0 characters Maximum length: 128 characters The value can be: STANDARD IA ARCHIVE DEEP_ARCHIVE SRC_STORAGE_MAPPING
consistency_check	String	The consistency check method, which is used to check whether objects are consistent before and after migration. The selected check method and results will be recorded in the object list. The default value is size_last_modified. size_last_modified: The system checks object consistency with object size and last modification time. If a source object is as large as but was last modified earlier than its paired destination object, the system considers the source object does not need to be migrated or has been already migrated successfully. crc64: This option is only available for migration on Huawei Cloud or from Alibaba Cloud or Tencent Cloud. If a source object and its paired destination object have CRC64 checksums, the checksums are checked. Otherwise, their sizes and last modification times are checked. no_check: This option is only available for migration of HTTP/HTTPS data. This option takes effect for source objects whose sizes cannot be obtained using the content-length field in the standard HTTP protocol. These source objects will overwrite their paired destination objects directly. If the size of a source object can be obtained, its size and last modification time will be checked. Value options are as follows: size_last_modified crc64 no_check
enable_requester_pays	Boolean	Indicates whether to let the requester make payment. After this function is enabled, the requester pays the request and data transmission fees.

**Table 4** **ErrorReasonResp** field description
Parameter	Type	Description
error_code	String	The error code returned for a migration failure. Minimum length: 0 characters Maximum length: 10 characters
error_msg	String	The migration failure cause. Minimum length: 0 characters Maximum length: 1,024 characters

**Table 5** **TaskGroupSrcNodeResp** field description
Parameter	Type	Description
bucket	String	The name of the source bucket. Minimum length: 0 characters Maximum length: 1,024 characters
cloud_type	String	The source cloud service provider. The value can be AWS, AZURE, ALIYUN, TENCENT, HUAWEICLOUD, QINGCLOUD, KINGSOFTCLOUD, BAIDU, QINIU, GOOGLE, URLSOURCE, or UCLOUD. The default value is ALIYUN. Value options are as follows: AWS AZURE ALIYUN TENCENT HUAWEICLOUD QINGCLOUD KINGSOFTCLOUD BAIDU QINIU URLSOURCE UCLOUD GOOGLE
region	String	The region where the source bucket is located. Minimum length: 0 characters Maximum length: 100 characters
app_id	String	This parameter is returned when cloud_type is Tencent. Minimum length: 0 characters Maximum length: 255 characters
object_key	Array of strings	The name prefixes of objects to be migrated if task_type is set to prefix. Minimum length: 0 characters Maximum length: 1,024 characters Array length: 0 to 500
list_file	ListFile object	The list file configuration. list_file is mandatory when task_type is set to list or url_list.

**Table 6** **ListFile** field description
Parameter	Type	Description
list_file_key	String	The object names in the object list file or URL list file. Minimum length: 1 character Maximum length: 1,024 characters
obs_bucket	String	The name of the OBS bucket for storing the object list files. Ensure that the OBS bucket is in the same region as the destination bucket, or the task will fail to be created. Minimum length: 0 characters Maximum length: 1,024 characters
list_file_num	String	The number of stored object list files. Minimum length: 0 characters Maximum length: 65,535 characters

**Table 7** **TaskGroupDstNodeResp** field description
Parameter	Type	Description
bucket	String	The name of the destination bucket. Minimum length: 0 characters Maximum length: 1,024 characters
region	String	The region where the destination bucket is located. Minimum length: 0 characters Maximum length: 100 characters
save_prefix	String	The path prefix in the destination bucket. The prefix is added before an object key to form a new key. The length of the new key cannot exceed 1,024 characters. Minimum length: 0 characters Maximum length: 1,024 characters

**Table 8** **BandwidthPolicyDto** field description
Parameter	Type	Description
end	String	The end time of the traffic limiting rule. The format is hh:mm, for example, 12:03.
max_bandwidth	Long	The maximum traffic bandwidth allowed in the specified time period. The unit is byte/s. The value ranges from 1,048,576 bytes/s (equivalent to 1 MB/s) to 209,715,200 bytes/s (equivalent to 200 MB/s). Minimum value: 1048576 Maximum value: 209715200
start	String	The start time of the traffic limiting rule. The format is hh:mm, for example, 12:03.

**Table 9** **SmnInfo** field description
Parameter	Type	Description
notify_result	Boolean	Indicates whether the SMN messages are sent successfully after migration tasks are complete.
notify_error_message	String	The error codes that record why the SMN messages failed to be sent. The value is empty if migration tasks are successful. Minimum length: 0 characters Maximum length: 1,024 characters
topic_name	String	The SMN topic name. The value is empty if SMN messages are sent successfully. Minimum length: 0 characters Maximum length: 5,120 characters

**Table 10** **SourceCdnResp** field description
Parameter	Type	Description
domain	String	The domain name from which to obtain objects to be migrated. Minimum length: 0 characters Maximum length: 1,024 characters
protocol	String	The protocol type. Value options are as follows: HTTP HTTPS
authentication_type	String	The authentication type. Value options are as follows: NONE QINIU_PRIVATE_AUTHENTICATION ALIYUN_OSS_A ALIYUN_OSS_B ALIYUN_OSS_C KSYUN_PRIVATE_AUTHENTICATION AZURE_SAS_TOKEN TENCENT_COS_A TENCENT_COS_B TENCENT_COS_C TENCENT_COS_D

**Table 11** **FailedObjectRecordDto** field description
Parameter	Type	Description
result	Boolean	Indicates whether to retransmit failed objects.
list_file_key	String	The path for storing the list of failed objects. Minimum length: 0 characters Maximum length: 1,024 characters
error_code	String	The error code returned when the list of failed objects fails to be uploaded. Minimum length: 0 characters Maximum length: 10 characters

Status code: 404

**Table 12** Response body parameters
Parameter	Type	Description
error_msg	String	The error message.
error_code	String	The error code.

Example Request

This example queries the information about migration task group 157ece42-3270-4824-a3d2-f0187a03ca01 in project f4e146cac1de45669c3fed73dc3b9c6f.

Get https://{endpoint}/v2/f4e146cac1de45669c3fed73dc3b9c6f/taskgroups/157ece42-3270-4824-a3d2-f0187a03ca01

Example Response

Status code: 200

{
  "group_id" : "9522a7e5-b4fc-44b9-93e1-4dbadbd86e67",
  "status" : 3,
  "error_reason" : null,
  "src_node" : {
    "bucket" : "dst-test-001",
    "cloud_type" : "HUAWEICLOUD",
    "region" : "cn-north-7",
    "app_id" : "",
    "object_key" : [ "" ],
    "list_file" : null
  },
  "description" : "",
  "dst_node" : {
    "bucket" : "assess-bucket-1",
    "region" : "cn-north-7",
    "save_prefix" : ""
  },
  "enable_metadata_migration" : false,
  "enable_failed_object_recording" : true,
  "enable_restore" : false,
  "enable_kms" : false,
  "task_type" : "PREFIX",
  "bandwidth_policy" : [ ],
  "smn_config" : null,
  "source_cdn" : null,
  "migrate_since" : 0,
  "migrate_speed" : 0,
  "total_time" : 7907369,
  "start_time" : 1659937788779,
  "total_task_num" : null,
  "create_task_num" : null,
  "failed_task_num" : null,
  "complete_task_num" : null,
  "paused_task_num" : null,
  "executing_task_num" : null,
  "waiting_task_num" : null,
  "total_num" : 4128588,
  "create_complete_num" : null,
  "success_num" : 0,
  "fail_num" : 0,
  "skip_num" : 0,
  "total_size" : 27814708666,
  "create_complete_size" : null,
  "complete_size" : 0,
  "failed_object_record" : {
    "result" : null,
    "list_file_key" : null,
    "error_code" : null
  },
  "object_overwrite_mode" : "SIZE_LAST_MODIFIED_COMPARISON_OVERWRITE",
  "consistency_check" : "size_last_modified",
  "enable_requester_pays" : false
}

SDK Sample Code

The sample code is as follows:

      
       
         
         
           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.oms.v2.region.OmsRegion;
import com.huaweicloud.sdk.oms.v2.*;
import com.huaweicloud.sdk.oms.v2.model.*;


public class ShowTaskGroupSolution {

    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");

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

        OmsClient client = OmsClient.newBuilder()
                .withCredential(auth)
                .withRegion(OmsRegion.valueOf("<YOUR REGION>"))
                .build();
        ShowTaskGroupRequest request = new ShowTaskGroupRequest();
        try {
            ShowTaskGroupResponse response = client.showTaskGroup(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());
        }
    }
}

          

        

      
     

      
       
         
         
           # coding: utf-8

from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdkoms.v2.region.oms_region import OmsRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkoms.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 = __import__('os').getenv("CLOUD_SDK_AK")
    sk = __import__('os').getenv("CLOUD_SDK_SK")

    credentials = BasicCredentials(ak, sk) \

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

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

          

        

      
     

      
       
         
         
           package main

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

    auth := basic.NewCredentialsBuilder().
        WithAk(ak).
        WithSk(sk).
        Build()

    client := oms.NewOmsClient(
        oms.OmsClientBuilder().
            WithRegion(region.ValueOf("<YOUR REGION>")).
            WithCredential(auth).
            Build())

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

          

        

      
     