文档首页/ 分布式消息服务RocketMQ版/ API参考/ API V2（推荐）/ 规格变更管理/ 查询实例的扩容规格列表 - ShowEngineInstanceExtendProductInfo
更新时间：2025-10-24 GMT+08:00
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查询实例的扩容规格列表 - ShowEngineInstanceExtendProductInfo

功能介绍

查询实例的扩容规格列表。

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，当前API调用无需身份策略权限。

URI

GET /v2/{engine}/{project_id}/instances/{instance_id}/extend

表1 路径参数

参数

是否必选

参数类型

描述

engine

是

String

消息引擎的类型。支持的类型为rocketmq。

project_id

是

String

项目ID，获取方式请参见获取项目ID。

instance_id

是

String

实例ID。
表2 Query参数

参数

是否必选

参数类型

描述

type

否

String

产品的类型。 advanced：专享版。

请求参数

无

响应参数

状态码：200

表3 响应Body参数

参数

参数类型

描述

total

Number

总数。

next_offset

Integer

下个分页的offset。

previous_offset

Integer

上个分页的offset。

engine

String

参数解释：

消息引擎类型。

取值范围：

  • rocketmq：rocketmq消息引擎。

  • reliability：rocketmq消息引擎别称。

versions

Array of strings

消息引擎支持的版本。

products

Array of RocketMQExtendProductInfoEntity objects

规格变更的产品信息。
表4 RocketMQExtendProductInfoEntity

参数

参数类型

描述

type

String

参数解释：

实例类型。

取值范围：

  • single：单机。

  • cluster：集群。

product_id

String

参数解释：

RocketMQ实例规格。

取值范围：

  • c6.4u8g.cluster：单个代理最大Topic数4000，单个代理最大消费组数4000

  • c6.8u16g.cluster：单个代理最大Topic数8000，单个代理最大消费组数8000

  • c6.12u24g.cluster：单个代理最大Topic数12000，单个代理最大消费组数12000

  • c6.16u32g.cluster：单个代理最大Topic数16000，单个代理最大消费组数16000

  • rocketmq.b1.large.1：RocketMQ 5.x 基础版单机规格，实例TPS 500

  • rocketmq.b2.large.4：RocketMQ 5.x 基础版集群规格，实例TPS 2000

  • rocketmq.b2.large.8：RocketMQ 5.x 基础版集群规格，实例TPS 4000

  • rocketmq.b2.large.12：RocketMQ 5.x 基础版集群规格，实例TPS 6000

  • rocketmq.p1.large.1：RocketMQ 5.x 专业版单机规格，实例TPS 500

  • rocketmq.p2.large.8：RocketMQ 5.x 专业版集群规格，实例TPS 4000

  • rocketmq.p2.large.12：RocketMQ 5.x 专业版集群规格，实例TPS 6000

  • rocketmq.p2.large.20：RocketMQ 5.x 专业版集群规格，实例TPS 10000

  • rocketmq.p2.large.40：RocketMQ 5.x 专业版集群规格，实例TPS 20000

  • rocketmq.p2.large.100：RocketMQ 5.x 专业版集群规格，实例TPS 50000

  • rocketmq.p2.large.150：RocketMQ 5.x 专业版集群规格，实例TPS 75000

  • rocketmq.p2.large.200：RocketMQ 5.x 专业版集群规格，实例TPS 100000

  • rocketmq.p2.large.300：RocketMQ 5.x 专业版集群规格，实例TPS 150000

ecs_flavor_id

String

该产品使用的ECS规格。

billing_code

String

参数解释：

账单计费类型。

取值范围：

  • dms.platinum.c6：公有云账单计费类型。

  • dms.platinum.c6.dec：专属云账单计费类型。

arch_types

Array of strings

支持的CPU架构类型。

charging_mode

Array of strings

支持的计费模式类型。

ios

Array of RocketMQExtendProductIosEntity objects

磁盘IO信息。

properties

RocketMQExtendProductPropertiesEntity object

功能特性的键值对。

available_zones

Array of strings

有可用资源的可用区列表。

unavailable_zones

Array of strings

资源售罄的可用区列表。

support_features

Array of RocketMQProductSupportFeaturesEntity objects

支持的特性功能。

qingtian_incompatible

Boolean

参数解释：

是否为擎天实例。

取值范围：

  • true：是擎天实例。

  • false：不是擎天实例。
表5 RocketMQExtendProductIosEntity

参数

参数类型

描述

io_spec

String

存储IO规格。

available_zones

Array of strings

有可用资源的可用区列表。

type

String

参数解释：

IO类型。

取值范围：

  • evs：公有云磁盘类型。

  • dss：专属云磁盘类型。

unavailable_zones

Array of strings

资源售罄的可用区列表。
表6 RocketMQExtendProductPropertiesEntity

参数

参数类型

描述

max_broker

String

Broker的最大个数（仅RocketMQ 4.8.0版本会显示此字段）。

max_topic_per_broker

String

每个节点最多能创建的Topic个数（仅RocketMQ 4.8.0版本会显示此字段）。

max_consumer_per_broker

String

每个节点的最大消费者数（仅RocketMQ 4.8.0版本会显示此字段）。

min_broker

String

Broker的最小个数（仅RocketMQ 4.8.0版本会显示此字段）。

engine_versions

String

参数解释：

消息引擎版本。

取值范围：

  • 4.8.0

  • 5.x

max_storage_per_node

String

每个节点的最大存储。单位为GB

min_storage_per_node

String

每个节点的最小存储。单位为GB。

product_alias

String

product_id的别名。

feature

String

该规格对应特性开关。（仅RocketMQ 5.x版本会显示此字段）

max_topic

String

实例Topic的最大数（仅RocketMQ 5.x版本会显示此字段）。

broker_num

String

broker数量（仅RocketMQ 5.x版本会显示此字段）。

core

String

整个实例的计费核数（仅RocketMQ 5.x版本会显示此字段）。

max_consumer

String

实例消费者的最大数（仅RocketMQ 5.x版本会显示此字段）。

rcu

String

流量单元，rcu * max_tpc_per_rcu = 规格最大TPS（仅RocketMQ 5.x版本会显示此字段）。

max_storage

String

最大存储空间（仅RocketMQ 5.x版本会显示此字段）。

min_storage

String

最小存储空间（仅RocketMQ 5.x版本会显示此字段）。

max_tps_per_rcu

String

单个rcu最大TPS（仅RocketMQ 5.x版本会显示此字段）。

elastic_tps

String

弹性TPS（仅RocketMQ 5.x版本会显示此字段）。
表7 RocketMQProductSupportFeaturesEntity

参数

参数类型

描述

name

String

特性名称。

properties

Map<String,String>

功能特性的键值对。

请求示例

查询实例扩容列表。

GET https://{endpoint}/v2/{engine}/{project_id}/instances/{instance_id}/extend

响应示例

状态码：200

查询实例的扩容规格列表成功。

{
  "total" : 1,
  "next_offset" : -1,
  "previous_offset" : -1,
  "engine" : "rocketmq",
  "versions" : [ "4.8.0" ],
  "products" : [ {
    "type" : "cluster.small",
    "product_id" : "c6.4u8g.cluster.small",
    "ecs_flavor_id" : "c6.xlarge.2",
    "billing_code" : "dms.platinum.c6",
    "arch_types" : [ "X86" ],
    "charging_mode" : [ "monthly", "hourly" ],
    "ios" : [ {
      "io_spec" : "dms.physical.storage.high.v2",
      "available_zones" : [ "xxx" ],
      "type" : "evs",
      "unavailable_zones" : [ "xxx" ]
    }, {
      "io_spec" : "dms.physical.storage.ultra.v2",
      "available_zones" : [ ],
      "type" : "evs",
      "unavailable_zones" : [ "xxx" ]
    } ],
    "support_features" : [ ],
    "properties" : {
      "max_broker" : "2",
      "max_topic_per_broker" : "2000",
      "max_storage_per_node" : "30000",
      "max_consumer_per_broker" : "2000",
      "min_broker" : "1",
      "product_alias" : "rocketmq.4u8g.cluster.small",
      "engine_versions" : "4.8.0",
      "min_storage_per_node" : "300"
    },
    "available_zones" : [ "xxx" ],
    "unavailable_zones" : [ "xxx" ],
    "qingtian_incompatible" : false
  }, {
    "type" : "cluster",
    "product_id" : "c6.4u8g.cluster",
    "ecs_flavor_id" : "s6.xlarge.2",
    "billing_code" : "dms.platinum.c6",
    "arch_types" : [ "X86" ],
    "charging_mode" : [ "monthly", "hourly" ],
    "ios" : [ {
      "io_spec" : "dms.physical.storage.ultra.v2",
      "available_zones" : [ ],
      "type" : "evs",
      "unavailable_zones" : [ "xxx" ]
    }, {
      "io_spec" : "dms.physical.storage.high.v2",
      "available_zones" : [ "xxx" ],
      "type" : "evs",
      "unavailable_zones" : [ "xxx" ]
    } ],
    "support_features" : [ ],
    "properties" : {
      "max_broker" : "10",
      "max_topic_per_broker" : "4000",
      "max_storage_per_node" : "60000",
      "max_consumer_per_broker" : "4000",
      "min_broker" : "1",
      "product_alias" : "rocketmq.4u8g.cluster",
      "engine_versions" : "4.8.0",
      "min_storage_per_node" : "300"
    },
    "available_zones" : [ "xxx" ],
    "unavailable_zones" : [ "xxx" ],
    "qingtian_incompatible" : false
  }, {
    "type" : "cluster",
    "product_id" : "c6.8u16g.cluster",
    "ecs_flavor_id" : "c6s.2xlarge.2",
    "billing_code" : "dms.platinum.c6",
    "arch_types" : [ "X86" ],
    "charging_mode" : [ "monthly", "hourly" ],
    "ios" : [ {
      "io_spec" : "dms.physical.storage.high.v2",
      "available_zones" : [ "xxx" ],
      "type" : "evs",
      "unavailable_zones" : [ "xxx" ]
    }, {
      "io_spec" : "dms.physical.storage.ultra.v2",
      "available_zones" : [ ],
      "type" : "evs",
      "unavailable_zones" : [ "xxx" ]
    } ],
    "support_features" : [ ],
    "properties" : {
      "max_broker" : "10",
      "max_topic_per_broker" : "8000",
      "max_storage_per_node" : "90000",
      "max_consumer_per_broker" : "8000",
      "min_broker" : "1",
      "product_alias" : "rocketmq.8u16g.cluster",
      "engine_versions" : "4.8.0",
      "min_storage_per_node" : "300"
    },
    "available_zones" : [ "xxx" ],
    "unavailable_zones" : [ "xxx" ],
    "qingtian_incompatible" : false
  }, {
    "type" : "cluster",
    "product_id" : "c6.12u24g.cluster",
    "ecs_flavor_id" : "c6s.3xlarge.2",
    "billing_code" : "dms.platinum.c6",
    "arch_types" : [ "X86" ],
    "charging_mode" : [ "monthly", "hourly" ],
    "ios" : [ {
      "io_spec" : "dms.physical.storage.ultra.v2",
      "available_zones" : [ ],
      "type" : "evs",
      "unavailable_zones" : [ "xxx" ]
    }, {
      "io_spec" : "dms.physical.storage.high.v2",
      "available_zones" : [ "xxx" ],
      "type" : "evs",
      "unavailable_zones" : [ "xxx" ]
    } ],
    "support_features" : [ ],
    "properties" : {
      "max_broker" : "10",
      "max_topic_per_broker" : "12000",
      "max_storage_per_node" : "90000",
      "max_consumer_per_broker" : "12000",
      "min_broker" : "1",
      "product_alias" : "rocketmq.12u24g.cluster",
      "engine_versions" : "4.8.0",
      "min_storage_per_node" : "300"
    },
    "available_zones" : [ "xxx" ],
    "unavailable_zones" : [ "xxx" ],
    "qingtian_incompatible" : false
  }, {
    "type" : "cluster",
    "product_id" : "c6.16u32g.cluster",
    "ecs_flavor_id" : "c6.4xlarge.2",
    "billing_code" : "dms.platinum.c6",
    "arch_types" : [ "X86" ],
    "charging_mode" : [ "monthly", "hourly" ],
    "ios" : [ {
      "io_spec" : "dms.physical.storage.high.v2",
      "available_zones" : [ "xxx" ],
      "type" : "evs",
      "unavailable_zones" : [ "xxx" ]
    }, {
      "io_spec" : "dms.physical.storage.ultra.v2",
      "available_zones" : [ ],
      "type" : "evs",
      "unavailable_zones" : [ "xxx" ]
    } ],
    "support_features" : [ ],
    "properties" : {
      "max_broker" : "10",
      "max_topic_per_broker" : "16000",
      "max_storage_per_node" : "90000",
      "max_consumer_per_broker" : "16000",
      "min_broker" : "1",
      "product_alias" : "rocketmq.16u32g.cluster",
      "engine_versions" : "4.8.0",
      "min_storage_per_node" : "300"
    },
    "available_zones" : [ "xxx" ],
    "unavailable_zones" : [ "xxx" ],
    "qingtian_incompatible" : false
  } ]
}

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.rocketmq.v2.region.RocketMQRegion;
import com.huaweicloud.sdk.rocketmq.v2.*;
import com.huaweicloud.sdk.rocketmq.v2.model.*;


public class ShowEngineInstanceExtendProductInfoSolution {

    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);

        RocketMQClient client = RocketMQClient.newBuilder()
                .withCredential(auth)
                .withRegion(RocketMQRegion.valueOf("<YOUR REGION>"))
                .build();
        ShowEngineInstanceExtendProductInfoRequest request = new ShowEngineInstanceExtendProductInfoRequest();
        request.withEngine("{engine}");
        request.withInstanceId("{instance_id}");
        try {
            ShowEngineInstanceExtendProductInfoResponse response = client.showEngineInstanceExtendProductInfo(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 huaweicloudsdkrocketmq.v2.region.rocketmq_region import RocketMQRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkrocketmq.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 = RocketMQClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(RocketMQRegion.value_of("<YOUR REGION>")) \
        .build()

    try:
        request = ShowEngineInstanceExtendProductInfoRequest()
        request.engine = "{engine}"
        request.instance_id = "{instance_id}"
        response = client.show_engine_instance_extend_product_info(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"
    rocketmq "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/rocketmq/v2"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/rocketmq/v2/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/rocketmq/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 := rocketmq.NewRocketMQClient(
        rocketmq.RocketMQClientBuilder().
            WithRegion(region.ValueOf("<YOUR REGION>")).
            WithCredential(auth).
            Build())

    request := &model.ShowEngineInstanceExtendProductInfoRequest{}
	request.Engine = "{engine}"
	request.InstanceId = "{instance_id}"
	response, err := client.ShowEngineInstanceExtendProductInfo(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

查询实例的扩容规格列表成功。

错误码

请参见错误码。

父主题： 规格变更管理

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