更新时间:2024-01-25 GMT+08:00
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从空闲节点扩容

功能介绍

该接口用于从空闲节点扩容。

调用方法

请参见如何调用API

URI

POST /v2/{project_id}/clusters/{cluster_id}/resize-with-existed-nodes
表1 路径参数

参数

是否必选

参数类型

描述

cluster_id

String

指定节点集群的ID。获取方法,请参见获取集群ID

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

scale_out

ScaleOut object

扩容对象。

force_backup

Boolean

是否强制备份。

mode

String

扩容备份模式,默认离线read-only。

logical_cluster_name

String

逻辑集群名称。非逻辑集群模式下该字段不填,逻辑集群模式下默认elastic_group。

expand_with_existed_node

Boolean

是否是使用已添加的空闲节点进行扩容。

auto_redistribute

Boolean

扩容完成后是否自动启动重分布,默认true。

redis_conf

RedisConfReq object

重分布配置信息。

表3 ScaleOut

参数

是否必选

参数类型

描述

count

Integer

扩容节点数。有空闲节点时扩容必须使用所有节点。

表4 RedisConfReq

参数

是否必选

参数类型

描述

redis_mode

String

重分布模式。offLine和onLine,默认offLine。

parallel_jobs

Integer

并行作业数量。可配置并发数在1-200之间,默认值:4。

响应参数

请求示例

POST https://{Endpoint}/v2/89cd04f168b84af6be287f71730fdb4b/clusters/4ca46bf1-5c61-48ff-b4f3-0ad4e5e3ba90/resize-with-existed-nodes

{
  "scale_out" : {
    "count" : 3
  },
  "expand_with_existed_node" : true,
  "auto_redistribute" : true,
  "redis_conf" : {
    "redis_mode" : "offLine",
    "parallel_jobs" : 4
  }
}

响应示例

状态码: 200

从空闲节点扩容成功。

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.dws.v2.region.DwsRegion;
import com.huaweicloud.sdk.dws.v2.*;
import com.huaweicloud.sdk.dws.v2.model.*;


public class ResizeClusterWithExistedNodesSolution {

    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);

        DwsClient client = DwsClient.newBuilder()
                .withCredential(auth)
                .withRegion(DwsRegion.valueOf("<YOUR REGION>"))
                .build();
        ResizeClusterWithExistedNodesRequest request = new ResizeClusterWithExistedNodesRequest();
        ResizeClusterWithExistedNodesRequestBody body = new ResizeClusterWithExistedNodesRequestBody();
        BuildTaskInfo buildTaskInfobody = new BuildTaskInfo();
        buildTaskInfobody.withBuildMode("read-only");
        RedisConf redisConfbody = new RedisConf();
        redisConfbody.withRedisMode("offLine")
            .withParallelJobs(4)
            .withParallelJob(4);
        ScaleOut scaleOutbody = new ScaleOut();
        scaleOutbody.withCount(3);
        body.withBuildTaskInfo(buildTaskInfobody);
        body.withRedisConf(redisConfbody);
        body.withIsSchedulerBuildMode(false);
        body.withAutoRedistribute(true);
        body.withCreateNodeOnly(true);
        body.withExpandWithExistedNode(true);
        body.withLogicalClusterName("test-logical-cluster");
        body.withMode("read-only");
        body.withForceBackup(false);
        body.withScaleOut(scaleOutbody);
        request.withBody(body);
        try {
            ResizeClusterWithExistedNodesResponse response = client.resizeClusterWithExistedNodes(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

from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdkdws.v2.region.dws_region import DwsRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkdws.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.getenv("CLOUD_SDK_AK")
    sk = os.getenv("CLOUD_SDK_SK")

    credentials = BasicCredentials(ak, sk) \

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

    try:
        request = ResizeClusterWithExistedNodesRequest()
        buildTaskInfobody = BuildTaskInfo(
            build_mode="read-only"
        )
        redisConfbody = RedisConf(
            redis_mode="offLine",
            parallel_jobs=4,
            parallel_job=4
        )
        scaleOutbody = ScaleOut(
            count=3
        )
        request.body = ResizeClusterWithExistedNodesRequestBody(
            build_task_info=buildTaskInfobody,
            redis_conf=redisConfbody,
            is_scheduler_build_mode=False,
            auto_redistribute=True,
            create_node_only=True,
            expand_with_existed_node=True,
            logical_cluster_name="test-logical-cluster",
            mode="read-only",
            force_backup=False,
            scale_out=scaleOutbody
        )
        response = client.resize_cluster_with_existed_nodes(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"
    dws "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dws/v2"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dws/v2/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dws/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 := dws.NewDwsClient(
        dws.DwsClientBuilder().
            WithRegion(region.ValueOf("<YOUR REGION>")).
            WithCredential(auth).
            Build())

    request := &model.ResizeClusterWithExistedNodesRequest{}
	buildTaskInfobody := &model.BuildTaskInfo{
		BuildMode: "read-only",
	}
	redisConfbody := &model.RedisConf{
		RedisMode: "offLine",
		ParallelJobs: int32(4),
		ParallelJob: int32(4),
	}
	scaleOutbody := &model.ScaleOut{
		Count: int32(3),
	}
	request.Body = &model.ResizeClusterWithExistedNodesRequestBody{
		BuildTaskInfo: buildTaskInfobody,
		RedisConf: redisConfbody,
		IsSchedulerBuildMode: false,
		AutoRedistribute: true,
		CreateNodeOnly: true,
		ExpandWithExistedNode: true,
		LogicalClusterName: "test-logical-cluster",
		Mode: "read-only",
		ForceBackup: false,
		ScaleOut: scaleOutbody,
	}
	response, err := client.ResizeClusterWithExistedNodes(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

从空闲节点扩容成功。

400

请求错误。

401

鉴权失败。

403

没有操作权限。

404

找不到资源。

500

服务内部错误。

503

服务不可用。

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