更新时间:2024-01-25 GMT+08:00
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查询主机概览

功能介绍

该接口用于查询主机监控概览信息。

调用方法

请参见如何调用API

URI

GET /v1.0/{project_id}/dms/host-overview
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

表2 Query参数

参数

是否必选

参数类型

描述

cluster_id

String

集群ID。获取方法,请参见获取集群ID

instance_name

String

实例名称。

limit

Integer

数据条目数。取值范围为1~2147483647。

offset

Integer

数据偏移量。取值范围为0~2147483646。

请求参数

响应参数

表3 响应Body参数

参数

参数类型

描述

[数组元素]

Array of HostOverviewResponse objects

主机概览列表。

表4 HostOverviewResponse

参数

参数类型

描述

instance_name

String

实例名称

host_name

String

主机名称

host_stat

String

主机状态,其中包括:

  • ONLINE:在线
  • OFFLINE:离线

work_ip

String

IP地址。

mem_free

double

系统中未使用的内存(GB)。

mem_total

double

总内存(GB)。

mem_usage

double

内存使用率(GB)。

mem_cached

double

缓存内存(GB)。

mem_buffer

double

缓冲内存(MB)。

swap_free

double

ram暂存在swap中的大小(GB)。

swap_total

double

交换空间总和(GB)。

cpu_usage

double

CPU使用率(%)。

cpu_usage_sys

double

系统CPU占用率(%)。

cpu_usage_usr

double

用户CPU占用率(%)。

cpu_idle

double

空闲CPU占用率(%)。

cpu_iowait

double

IO等待(%)。

disk_usage_avg

double

磁盘平均使用率(%)。

disk_total

double

磁盘总容量(GB)。

disk_used

double

磁盘使用容量(GB)。

disk_available

double

磁盘可用容量(GB)。

disk_io

double

磁盘IO(KB/s)。

disk_io_read

double

磁盘读速率(KB/s)。

disk_io_write

double

磁盘写速率(KB/s)。

tcp_resend_rate

double

TCP协议栈重传率(%)。

net_io

double

网络IO(KB/s)。

请求示例

https://{Endpoint}/v1.0/05f2cff45100d5112f4bc00b794ea08e/dms/host-overview?limit=1&offset=0

响应示例

状态码:200

查询主机概览成功。

[
  {
    "instance_name": "d30035376-dms-test07-dws-cn-cn-1-1",
    "host_name": "host-172-16-11-62",
    "host_stat": "ONLINE",
    "work_ip": "172.16.106.168",
    "mem_free": 1.45,
    "mem_total": 14.89,
    "mem_usage": 26.4,
    "mem_cached": 9.26,
    "mem_buffer": 249.34,
    "swap_free": 0,
    "swap_total": 0,
    "cpu_usage": 8.93,
    "cpu_usage_sys": 3.37,
    "cpu_usage_usr": 5.56,
    "cpu_idle": 90.57,
    "cpu_iowait": 0.12,
    "disk_usage_avg": 4.44,
    "disk_total": 548.76,
    "disk_used": 24.38,
    "disk_available": 522,
    "disk_io": 19.75,
    "disk_io_read": 0,
    "disk_io_write": 19.75,
    "tcp_resend_rate": 0,
    "net_io": 0
  }
]

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 ListHostOverviewSolution {

    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();
        ListHostOverviewRequest request = new ListHostOverviewRequest();
        request.withClusterId("<cluster_id>");
        request.withInstanceName("<instance_name>");
        request.withLimit(<limit>);
        request.withOffset(<offset>);
        try {
            ListHostOverviewResponse response = client.listHostOverview(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 = ListHostOverviewRequest()
        request.cluster_id = "<cluster_id>"
        request.instance_name = "<instance_name>"
        request.limit = <limit>
        request.offset = <offset>
        response = client.list_host_overview(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.ListHostOverviewRequest{}
	clusterIdRequest:= "<cluster_id>"
	request.ClusterId = &clusterIdRequest
	instanceNameRequest:= "<instance_name>"
	request.InstanceName = &instanceNameRequest
	request.Limit = int32(<limit>)
	request.Offset = int32(<offset>)
	response, err := client.ListHostOverview(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

查询主机概览成功。

204

处理成功,但没有返回任何内容。

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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