文档首页/ 分布式缓存服务 DCS/ API参考/ API V2（推荐）/ 离线全量key分析/ 创建离线全量key分析任务
更新时间：2025-08-05 GMT+08:00
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创建离线全量key分析任务

功能介绍

创建离线全量key分析任务。离线全量key分析用于分析实例指定节点备份文件中的TOP100大key，每种数据类型前缀数量TOP50的key和每种数据类型key的内存占用和数量的分布情况。仅Redis 4.0、5.0、6.0版本及Redis企业版实例支持。

调用方法

请参见如何调用API。

URI

POST /v2/{project_id}/instances/{instance_id}/offline/key-analysis

表1 路径参数

参数

是否必选

参数类型

描述

project_id

是

String

参数解释：

项目ID。获取方法请参见获取项目ID。

约束限制：

不涉及。

取值范围：

不涉及。

默认取值：

不涉及。

instance_id

是

String

参数解释：

实例ID。可通过DCS控制台进入实例详情界面查看。

约束限制：

不涉及。

取值范围：

不涉及。

默认取值：

不涉及。

请求参数

表2 请求Body参数

参数

是否必选

参数类型

描述

node_id

是

String

参数解释：

实例节点ID，可通过DCS控制台进入实例的节点管理界面查看。

约束限制：

不涉及。

取值范围：

不涉及。

默认取值：

不涉及。

backup_id

否

String

参数解释：

实例备份ID，可通过DCS控制台进入实例的备份与恢复界面查看。

约束限制：

不涉及。

取值范围：

不涉及。

默认取值：

不涉及。

响应参数

状态码：200

表3 响应Body参数

参数

参数类型

描述

task_id

String

参数解释：

离线全量key分析任务ID。

取值范围：

不涉及。

状态码：400

表4 响应Body参数

参数

参数类型

描述

error_msg

String

参数解释：

错误信息。

取值范围：

不涉及。

error_code

String

参数解释：

错误码。

取值范围：

请参见错误码。

error_ext_msg

String

参数解释：

扩展错误信息（暂未使用，赋值为null）。

取值范围：

不涉及。

状态码：401

表5 响应Body参数

参数

参数类型

描述

error_msg

String

参数解释：

错误信息。

取值范围：

不涉及。

error_code

String

参数解释：

错误码。

取值范围：

请参见错误码。

error_ext_msg

String

参数解释：

扩展错误信息（暂未使用，赋值为null）。

取值范围：

不涉及。

状态码：403

表6 响应Body参数

参数

参数类型

描述

error_msg

String

参数解释：

错误信息。

取值范围：

不涉及。

error_code

String

参数解释：

错误码。

取值范围：

请参见错误码。

error_ext_msg

String

参数解释：

扩展错误信息（暂未使用，赋值为null）。

取值范围：

不涉及。

状态码：404

表7 响应Body参数

参数

参数类型

描述

error_msg

String

参数解释：

错误信息。

取值范围：

不涉及。

error_code

String

参数解释：

错误码。

取值范围：

请参见错误码。

error_ext_msg

String

参数解释：

扩展错误信息（暂未使用，赋值为null）。

取值范围：

不涉及。

状态码：500

表8 响应Body参数

参数

参数类型

描述

error_msg

String

参数解释：

错误信息。

取值范围：

不涉及。

error_code

String

参数解释：

错误码。

取值范围：

请参见错误码。

error_ext_msg

String

参数解释：

扩展错误信息（暂未使用，赋值为null）。

取值范围：

不涉及。

请求示例

  • POST https://{dcs_endpoint}/v2/{project_id}/instances/{instance_id}/offline/key-analysis

{
  "node_id" : "ff8080828fdd5aef018fe2218a886105"
}
  • {
  "node_id" : "ff8080828fdd5aef018fe2218a886105",
  "backup_id" : "c24e2ef4-23bd-47ef-8b1f-8e3f0492c906"
}

响应示例

状态码：200

创建离线全量key分析任务成功。

{
  "task_id" : "aa735b6f-3d70-44e3-9771-66c6fae7459a"
}

状态码：400

非法请求。

{
  "error_code" : "DCS.4230",
  "error_msg" : "Does not support offline key analysis."
}

SDK代码示例

SDK代码示例如下。

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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 CreateOfflineKeyAnalysisSolution {

    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();
        CreateOfflineKeyAnalysisRequest request = new CreateOfflineKeyAnalysisRequest();
        request.withInstanceId("{instance_id}");
        CreateOfflineKeyAnalysisRequestBody body = new CreateOfflineKeyAnalysisRequestBody();
        body.withNodeId("ff8080828fdd5aef018fe2218a886105");
        request.withBody(body);
        try {
            CreateOfflineKeyAnalysisResponse response = client.createOfflineKeyAnalysis(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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    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 CreateOfflineKeyAnalysisSolution {

    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();
        CreateOfflineKeyAnalysisRequest request = new CreateOfflineKeyAnalysisRequest();
        request.withInstanceId("{instance_id}");
        CreateOfflineKeyAnalysisRequestBody body = new CreateOfflineKeyAnalysisRequestBody();
        body.withBackupId("c24e2ef4-23bd-47ef-8b1f-8e3f0492c906");
        body.withNodeId("ff8080828fdd5aef018fe2218a886105");
        request.withBody(body);
        try {
            CreateOfflineKeyAnalysisResponse response = client.createOfflineKeyAnalysis(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 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 = CreateOfflineKeyAnalysisRequest()
        request.instance_id = "{instance_id}"
        request.body = CreateOfflineKeyAnalysisRequestBody(
            node_id="ff8080828fdd5aef018fe2218a886105"
        )
        response = client.create_offline_key_analysis(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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    # 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 = CreateOfflineKeyAnalysisRequest()
        request.instance_id = "{instance_id}"
        request.body = CreateOfflineKeyAnalysisRequestBody(
            backup_id="c24e2ef4-23bd-47ef-8b1f-8e3f0492c906",
            node_id="ff8080828fdd5aef018fe2218a886105"
        )
        response = client.create_offline_key_analysis(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"
    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 := basic.NewCredentialsBuilder().
        WithAk(ak).
        WithSk(sk).
        WithProjectId(projectId).
        Build()

    client := dcs.NewDcsClient(
        dcs.DcsClientBuilder().
            WithRegion(region.ValueOf("<YOUR REGION>")).
            WithCredential(auth).
            Build())

    request := &model.CreateOfflineKeyAnalysisRequest{}
	request.InstanceId = "{instance_id}"
	request.Body = &model.CreateOfflineKeyAnalysisRequestBody{
		NodeId: "ff8080828fdd5aef018fe2218a886105",
	}
	response, err := client.CreateOfflineKeyAnalysis(request)
	if err == nil {
        fmt.Printf("%+v\n", response)
    } else {
        fmt.Println(err)
    }
}

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

    client := dcs.NewDcsClient(
        dcs.DcsClientBuilder().
            WithRegion(region.ValueOf("<YOUR REGION>")).
            WithCredential(auth).
            Build())

    request := &model.CreateOfflineKeyAnalysisRequest{}
	request.InstanceId = "{instance_id}"
	backupIdCreateOfflineKeyAnalysisRequestBody:= "c24e2ef4-23bd-47ef-8b1f-8e3f0492c906"
	request.Body = &model.CreateOfflineKeyAnalysisRequestBody{
		BackupId: &backupIdCreateOfflineKeyAnalysisRequestBody,
		NodeId: "ff8080828fdd5aef018fe2218a886105",
	}
	response, err := client.CreateOfflineKeyAnalysis(request)
	if err == nil {
        fmt.Printf("%+v\n", response)
    } else {
        fmt.Println(err)
    }
}

更多编程语言的SDK代码示例，请参见API Explorer的代码示例页签，可生成自动对应的SDK代码示例。

状态码

状态码

描述

200

创建离线全量key分析任务成功。

400

非法请求。

401

认证信息非法。

403

请求被拒绝访问。

404

所请求的资源不存在。

500

内部服务错误。

错误码

请参见错误码。

父主题： 离线全量key分析