更新时间:2024-03-04 GMT+08:00
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查询分片信息

功能介绍

查询读写分离实例和集群实例的分片和副本信息。其中,读写分离实例仅Redis4.0和Redis5.0的主备实例支持。

调用方法

请参见如何调用API

URI

GET /v2/{project_id}/instance/{instance_id}/groups

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

instance_id

String

实例ID。

请求参数

响应参数

状态码: 200

表2 响应Body参数

参数

参数类型

描述

group_list

Array of InstanceGroupListInfo objects

分片列表。

group_count

Integer

实例分片总数。

表3 InstanceGroupListInfo

参数

参数类型

描述

group_id

String

分片ID。

group_name

String

分片名称。

replication_list

Array of InstanceReplicationListInfo objects

每个分片包含的副本列表。

表4 InstanceReplicationListInfo

参数

参数类型

描述

replication_role

String

副本角色,取值有:

  • master:表示主节点。

  • slave:表示从节点。

replication_ip

String

副本IP。

is_replication

Boolean

是否是新加副本。

replication_id

String

副本ID。

node_id

String

节点ID。

status

String

副本状态。

枚举值:

  • Active

  • Inactive

az_code

String

副本所在的可用区。

dimensions

Array of InstanceReplicationDimensionsInfo objects

副本对应的监控指标维度信息。可用于调用云监控服务的查询监控数据指标相关接口

  • 副本的监控维度为多维度,返回数组中包含两个维度信息。从云监控查询监控数据时,要按多维度传递指标维度参数,才能查询到监控指标值。

  • 第一个维度为副本父维度信息,维度名称为dcs_instance_id,维度值对应副本所在的实例ID。

  • 第二个维度,维度名称为dcs_cluster_redis_node,维度值为副本的监控对象ID,与副本ID和节点ID不同。

表5 InstanceReplicationDimensionsInfo

参数

参数类型

描述

name

String

监控维度名称。

value

String

维度取值。

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。

最大长度:1024

error_code

String

错误码。

最大长度:9

error_ext_msg

String

扩展错误信息(暂未使用,赋值为null)。

最大长度:1024

状态码: 400

表7 响应Body参数

参数

参数类型

描述

error_msg

String

错误信息。

最大长度:1024

error_code

String

错误码。

最大长度:9

error_ext_msg

String

扩展错误信息(暂未使用,赋值为null)。

最大长度:1024

请求示例

GET https://{dcs_endpoint}/v2/{project_id}/instance/{instance_id}/groups

响应示例

状态码: 200

查询分片和副本信息成功。

{
  "group_list" : [ {
    "group_id" : "35e1bed6-7de5-4898-9eb2-c362c783df15",
    "group_name" : "group-0",
    "replication_list" : [ {
      "az_code" : "region01",
      "is_replication" : false,
      "node_id" : "8abfa7aa73291f15017329e1cda0002d",
      "replication_id" : "dfbd3f84-08bc-42f0-b538-01d03e6dc178",
      "replication_ip" : "192.168.76.25",
      "replication_role" : "master",
      "status" : "Active",
      "dimensions" : [ {
        "name" : "dcs_instance_id",
        "value" : "caf2d19f-7783-44b0-be46-8c9da3ef1e94"
      }, {
        "name" : "dcs_cluster_redis_node",
        "value" : "8263dc69629c5b2d840e9816fa9c6200"
      } ]
    }, {
      "az_code" : "region01",
      "is_replication" : false,
      "node_id" : "8abfa7aa73291f15017329e1cdb0002e",
      "replication_id" : "63d4c880-7050-464f-ab19-c8a297474d7d",
      "replication_ip" : "192.168.78.207",
      "replication_role" : "slave",
      "status" : "Active",
      "dimensions" : [ {
        "name" : "dcs_instance_id",
        "value" : "caf2d19f-7783-44b0-be46-8c9da3ef1e94"
      }, {
        "name" : "dcs_cluster_redis_node",
        "value" : "8263dc69629c5b2d840e9816fa9c6201"
      } ]
    } ]
  }, {
    "group_id" : "579a281f-6e63-4822-b0c7-e45c44b7c807",
    "group_name" : "group-1",
    "replication_list" : [ {
      "az_code" : "region01",
      "is_replication" : false,
      "node_id" : "8abfa7aa73291f15017329e1cdbd002f",
      "replication_id" : "6284c192-48d1-462b-8fd9-45dad067c1a2",
      "replication_ip" : "192.168.73.164",
      "replication_role" : "master",
      "status" : "Active",
      "dimensions" : [ {
        "name" : "dcs_instance_id",
        "value" : "caf2d19f-7783-44b0-be46-8c9da3ef1e94"
      }, {
        "name" : "dcs_cluster_redis_node",
        "value" : "8263dc69629c5b2d840e9816fa9c6202"
      } ]
    }, {
      "az_code" : "region01",
      "is_replication" : false,
      "node_id" : "8abfa7aa73291f15017329e1cdc80030",
      "replication_id" : "b927de3b-42f3-45b5-b0e4-8547f0ef6727",
      "replication_ip" : "192.168.77.172",
      "replication_role" : "slave",
      "status" : "Active",
      "dimensions" : [ {
        "name" : "dcs_instance_id",
        "value" : "caf2d19f-7783-44b0-be46-8c9da3ef1e94"
      }, {
        "name" : "dcs_cluster_redis_node",
        "value" : "8263dc69629c5b2d840e9816fa9c6203"
      } ]
    } ]
  }, {
    "group_id" : "c17305c6-6651-42d9-86bf-5a6087076eb7",
    "group_name" : "group-2",
    "replication_list" : [ {
      "az_code" : "region01",
      "is_replication" : false,
      "node_id" : "8abfa7aa73291f15017329e1cdd90031",
      "replication_id" : "caa6636d-a5c1-43b8-990a-3dc134da4522",
      "replication_ip" : "192.168.76.143",
      "replication_role" : "master",
      "status" : "Active",
      "dimensions" : [ {
        "name" : "dcs_instance_id",
        "value" : "caf2d19f-7783-44b0-be46-8c9da3ef1e94"
      }, {
        "name" : "dcs_cluster_redis_node",
        "value" : "8263dc69629c5b2d840e9816fa9c6204"
      } ]
    }, {
      "az_code" : "region01",
      "is_replication" : false,
      "node_id" : "8abfa7aa73291f15017329e1cde50032",
      "replication_id" : "4f46790d-a0b0-4a1b-aa02-1c554fccf62d",
      "replication_ip" : "192.168.72.66",
      "replication_role" : "slave",
      "status" : "Active",
      "dimensions" : [ {
        "name" : "dcs_instance_id",
        "value" : "caf2d19f-7783-44b0-be46-8c9da3ef1e94"
      }, {
        "name" : "dcs_cluster_redis_node",
        "value" : "8263dc69629c5b2d840e9816fa9c6205"
      } ]
    } ]
  } ],
  "group_count" : 3
}

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 ListGroupReplicationInfoSolution {

    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);

        DcsClient client = DcsClient.newBuilder()
                .withCredential(auth)
                .withRegion(DcsRegion.valueOf("<YOUR REGION>"))
                .build();
        ListGroupReplicationInfoRequest request = new ListGroupReplicationInfoRequest();
        try {
            ListGroupReplicationInfoResponse response = client.listGroupReplicationInfo(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 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 = __import__('os').getenv("CLOUD_SDK_AK")
    sk = __import__('os').getenv("CLOUD_SDK_SK")

    credentials = BasicCredentials(ak, sk) \

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

    try:
        request = ListGroupReplicationInfoRequest()
        response = client.list_group_replication_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"
    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")

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

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

    request := &model.ListGroupReplicationInfoRequest{}
	response, err := client.ListGroupReplicationInfo(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

查询分片和副本信息成功。

500

内部服务错误。

400

非法请求。

错误码

请参见错误码

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