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更新时间：2026-09-08 GMT+08:00
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设置/解除实例只读 - SetInstanceReadonlyStatus

功能介绍

设置实例状态为只读或解读实例的只读状态。

接口约束

  • 实例在创建、变更规格、冻结、异常等状态下不能执行设置只读操作。

  • 实例设置为只读后，该实例将无法写入数据。

  • 仅当实例的只读状态是通过本接口设置时，才可以通过此接口将其恢复为读写状态。对于其他原因（例如包年/包月实例磁盘空间满、正在进行DRS迁移等）造成的只读状态，无法通过此接口解除只读。

调用方法

请参见如何调用API。

授权信息

账号具备所有API的调用权限，如果使用账号下的IAM用户调用当前API，该IAM用户需具备调用API所需的权限。

  • 如果使用角色与策略授权，具体权限要求请参见权限和授权项。
  • 如果使用身份策略授权，需具备如下身份策略权限。

    授权项

    访问级别

    资源类型（*为必须）

    条件键

    别名

    依赖的授权项

    gaussdbformysql:instance:setInstanceReadonlyStatus

    Write

    instance *

    • g:EnterpriseProjectId

    • g:ResourceTag/<tag-key>

    gaussdb:instance:setInstanceReadonlyStatus

    -

URI

PUT /v3/{project_id}/instances/{instance_id}/readonly-status

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：

租户在某一Region下的project ID。

获取方法请参见获取项目ID。

约束限制：

不涉及。

取值范围：

只能由英文字母、数字组成，且长度为32个字符。

默认取值：

不涉及。

instance_id

是

String

参数解释：

实例ID，此参数是实例的唯一标识。

获取方法请参见查询实例列表。

约束限制：

不涉及。

取值范围：

只能由英文字母、数字组成，后缀为in07，长度为36个字符。

默认取值：

不涉及。

请求参数

表2 请求Header参数

参数

是否必选

参数类型

描述

X-Auth-Token

是

String

参数解释：

用户Token。

通过调用IAM服务获取用户Token接口获取。

请求响应成功后在响应消息头中包含的“X-Subject-Token”的值即为Token值。

约束限制：

不涉及。

取值范围：

不涉及。

默认取值：

不涉及。

X-Language

否

String

参数解释：

请求语言类型。

约束限制：

不涉及。

取值范围：

  • en-us：英文。

  • zh-cn：中文。

默认取值：

en-us。
表3 请求Body参数

参数

是否必选

参数类型

描述

readonly

是

Boolean

参数解释：

设置或者解除实例只读。

约束限制：

不涉及。

取值范围：

  • true: 设置只读。

  • false: 解除只读。

默认取值：

不涉及。

响应参数

状态码：200

表4 响应Body参数

参数

参数类型

描述

job_id

String

参数解释：

任务ID。

取值范围：

不涉及。

状态码：400

表5 响应Body参数

参数

参数类型

描述

error_code

String

错误码。

error_msg

String

错误消息。

状态码：500

表6 响应Body参数

参数

参数类型

描述

error_code

String

错误码。

error_msg

String

错误消息。

请求示例

  • 设置实例状态为只读状态。

    PUT https://{endpoint}/v3/0483b6b16e954cb88930a360d2c4e663/instances/12a49c2dc32648df8dd25e2976f70180in07/readonly-status

{
  "readonly" : true
}

  • 解除实例只读状态。

    PUT https://{endpoint}/v3/0483b6b16e954cb88930a360d2c4e663/instances/12a49c2dc32648df8dd25e2976f70180in07/readonly-status

{
  "readonly" : false
}

响应示例

状态码：200

Success.

{
  "job_id" : "abb148d0-76a9-4919-a64e-1e273d2505a4"
}

SDK代码示例

SDK代码示例如下。

  • 设置实例状态为只读状态。

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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.gaussdb.v3.region.GaussDBRegion;
import com.huaweicloud.sdk.gaussdb.v3.*;
import com.huaweicloud.sdk.gaussdb.v3.model.*;


public class SetInstanceReadonlyStatusSolution {

    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);

        GaussDBClient client = GaussDBClient.newBuilder()
                .withCredential(auth)
                .withRegion(GaussDBRegion.valueOf("<YOUR REGION>"))
                .build();
        SetInstanceReadonlyStatusRequest request = new SetInstanceReadonlyStatusRequest();
        request.withInstanceId("{instance_id}");
        SetInstanceReadonlyRequestBody body = new SetInstanceReadonlyRequestBody();
        body.withReadonly(true);
        request.withBody(body);
        try {
            SetInstanceReadonlyStatusResponse response = client.setInstanceReadonlyStatus(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());
        }
    }
}

  • 解除实例只读状态。

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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.gaussdb.v3.region.GaussDBRegion;
import com.huaweicloud.sdk.gaussdb.v3.*;
import com.huaweicloud.sdk.gaussdb.v3.model.*;


public class SetInstanceReadonlyStatusSolution {

    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);

        GaussDBClient client = GaussDBClient.newBuilder()
                .withCredential(auth)
                .withRegion(GaussDBRegion.valueOf("<YOUR REGION>"))
                .build();
        SetInstanceReadonlyStatusRequest request = new SetInstanceReadonlyStatusRequest();
        request.withInstanceId("{instance_id}");
        SetInstanceReadonlyRequestBody body = new SetInstanceReadonlyRequestBody();
        body.withReadonly(false);
        request.withBody(body);
        try {
            SetInstanceReadonlyStatusResponse response = client.setInstanceReadonlyStatus(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());
        }
    }
}

  • 设置实例状态为只读状态。

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    # coding: utf-8

import os
from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdkgaussdb.v3.region.gaussdb_region import GaussDBRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkgaussdb.v3 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 = GaussDBClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(GaussDBRegion.value_of("<YOUR REGION>")) \
        .build()

    try:
        request = SetInstanceReadonlyStatusRequest()
        request.instance_id = "{instance_id}"
        request.body = SetInstanceReadonlyRequestBody(
            readonly=True
        )
        response = client.set_instance_readonly_status(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)

  • 解除实例只读状态。

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    # coding: utf-8

import os
from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdkgaussdb.v3.region.gaussdb_region import GaussDBRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkgaussdb.v3 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 = GaussDBClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(GaussDBRegion.value_of("<YOUR REGION>")) \
        .build()

    try:
        request = SetInstanceReadonlyStatusRequest()
        request.instance_id = "{instance_id}"
        request.body = SetInstanceReadonlyRequestBody(
            readonly=False
        )
        response = client.set_instance_readonly_status(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)

  • 设置实例状态为只读状态。

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    package main

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


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

    client := gaussdb.NewGaussDBClient(hcClient)

    request := &model.SetInstanceReadonlyStatusRequest{}
	request.InstanceId = "{instance_id}"
	request.Body = &model.SetInstanceReadonlyRequestBody{
		Readonly: true,
	}
	response, err := client.SetInstanceReadonlyStatus(request)
	if err == nil {
        fmt.Printf("%+v\n", response)
    } else {
        fmt.Println(err)
    }
}

  • 解除实例只读状态。

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    package main

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


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

    client := gaussdb.NewGaussDBClient(hcClient)

    request := &model.SetInstanceReadonlyStatusRequest{}
	request.InstanceId = "{instance_id}"
	request.Body = &model.SetInstanceReadonlyRequestBody{
		Readonly: false,
	}
	response, err := client.SetInstanceReadonlyStatus(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

Success.

400

Client error.

500

Server error.

错误码

请参见错误码。

父主题： 实例管理

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