更新时间:2024-11-06 GMT+08:00
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重启实例或清空数据

功能介绍

重启运行中的DCS缓存实例。

清空Redis4.0及以上版本的实例数据,数据清空后,无法撤销,且无法恢复,请谨慎操作。

调用方法

请参见如何调用API

URI

PUT /v2/{project_id}/instances/status

表1 路径参数

参数

是否必选

参数类型

描述

project_id

String

项目ID。获取方法请参见获取项目ID

请求参数

表2 请求Body参数

参数

是否必选

参数类型

描述

instances

Array of strings

实例的ID列表。

action

String

对实例的操作:

restart: 强制重启

soft_restart: 软重启,只重启进程

flush: 清空数据

stop: 实例关机

start: 实例启动

说明:

目前只有Redis 4.0及以上版本实例支持清空数据、实例关机和实例启动功能。

响应参数

状态码: 200

表3 响应Body参数

参数

参数类型

描述

results

Array of BatchOpsResult objects

删除/重启/清空实例的结果。

表4 BatchOpsResult

参数

参数类型

描述

result

String

操作结果,取值有success或failed。

instance

String

缓存实例ID。

状态码: 400

表5 响应Body参数

参数

参数类型

描述

error_msg

String

错误信息。

error_code

String

错误码。

error_ext_msg

String

扩展错误信息(暂未使用,赋值为null)。

状态码: 500

表6 响应Body参数

参数

参数类型

描述

error_msg

String

错误信息。

error_code

String

错误码。

error_ext_msg

String

扩展错误信息(暂未使用,赋值为null)。

请求示例

强制重启缓存实例。

PUT https://{dcs_endpoint}/v2/{project_id}/instances/status

{
  "instances" : [ "2e803f66-fbb0-47ad-b6cb-fb87f5bed4ef" ],
  "action" : "restart"
}

响应示例

状态码: 200

重启实例或清除实例数据成功。

{
  "results" : [ {
    "instance" : "e3a7019c-8824-4c1a-8289-5300f19b9f64",
    "result" : "success"
  } ]
}

SDK代码示例

SDK代码示例如下。

强制重启缓存实例。

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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.*;

import java.util.List;
import java.util.ArrayList;

public class RestartOrFlushInstancesSolution {

    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();
        RestartOrFlushInstancesRequest request = new RestartOrFlushInstancesRequest();
        ChangeInstanceStatusBody body = new ChangeInstanceStatusBody();
        List<String> listbodyInstances = new ArrayList<>();
        listbodyInstances.add("2e803f66-fbb0-47ad-b6cb-fb87f5bed4ef");
        body.withAction("restart");
        body.withInstances(listbodyInstances);
        request.withBody(body);
        try {
            RestartOrFlushInstancesResponse response = client.restartOrFlushInstances(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());
        }
    }
}

强制重启缓存实例。

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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 = RestartOrFlushInstancesRequest()
        listInstancesbody = [
            "2e803f66-fbb0-47ad-b6cb-fb87f5bed4ef"
        ]
        request.body = ChangeInstanceStatusBody(
            action="restart",
            instances=listInstancesbody
        )
        response = client.restart_or_flush_instances(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)

强制重启缓存实例。

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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.RestartOrFlushInstancesRequest{}
	var listInstancesbody = []string{
        "2e803f66-fbb0-47ad-b6cb-fb87f5bed4ef",
    }
	actionChangeInstanceStatusBody:= "restart"
	request.Body = &model.ChangeInstanceStatusBody{
		Action: &actionChangeInstanceStatusBody,
		Instances: &listInstancesbody,
	}
	response, err := client.RestartOrFlushInstances(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

重启实例或清除实例数据成功。

400

非法请求。

500

内部服务错误。

错误码

请参见错误码

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