磁盘扩容
功能介绍
随着客户业务的发展,磁盘空间往往最先出现资源瓶颈,在其他资源尚且充足的情况下,通过磁盘扩容可快速缓解存储资源瓶颈现象,操作过程中无需暂停业务,并且不会造成CPU、内存等资源浪费。
约束限制:
磁盘扩容功能仅8.1.1.203及以上版本支持,并且创建集群规格需要为云数仓SSD云盘或实时数仓类型。
按需+折扣套餐包消费模式下,存储扩容后超出折扣套餐包部分将按需收费。
调用方法
请参见如何调用API。
URI
POST /v1.0/{project_id}/clusters/{cluster_id}/expand-instance-storage
请求参数
参数 |
是否必选 |
参数类型 |
描述 |
---|---|---|---|
new_size |
是 |
Integer |
参数解释: 磁盘扩容后单节点有效存储容量(GB/节点)。 该容量必须大于当前单节点有效容量,小于等于集群规格支持的单节点最大容量,扩容容量为规格支持的步长倍数。 集群规格配置详情可根据 集群规格详情 查询。 约束限制: 不涉及。 取值范围: 不涉及。 默认取值: 不涉及。 |
响应参数
状态码:200
磁盘扩容请求下发成功。
无
请求示例
集群磁盘扩容,扩容后单节点有效存储容量为200GB
POST https://{Endpoint}/v1.0/89cd04f168b84af6be287f71730fdb4b/clusters/b5c45780-1006-49e3-b2d5-b3229975bbc7/expand-instance-storage { "new_size" : 200 }
响应示例
状态码:200
磁盘扩容请求下发成功。
{ }
SDK代码示例
SDK代码示例如下。
集群磁盘扩容,扩容后单节点有效存储容量为200GB
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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 ExpandInstanceStorageSolution { 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); DwsClient client = DwsClient.newBuilder() .withCredential(auth) .withRegion(DwsRegion.valueOf("<YOUR REGION>")) .build(); ExpandInstanceStorageRequest request = new ExpandInstanceStorageRequest(); request.withClusterId("{cluster_id}"); ExpandInstanceStorage body = new ExpandInstanceStorage(); body.withNewSize(200); request.withBody(body); try { ExpandInstanceStorageResponse response = client.expandInstanceStorage(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()); } } } |
集群磁盘扩容,扩容后单节点有效存储容量为200GB
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# coding: utf-8 import os 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.environ["CLOUD_SDK_AK"] sk = os.environ["CLOUD_SDK_SK"] projectId = "{project_id}" credentials = BasicCredentials(ak, sk, projectId) client = DwsClient.new_builder() \ .with_credentials(credentials) \ .with_region(DwsRegion.value_of("<YOUR REGION>")) \ .build() try: request = ExpandInstanceStorageRequest() request.cluster_id = "{cluster_id}" request.body = ExpandInstanceStorage( new_size=200 ) response = client.expand_instance_storage(request) print(response) except exceptions.ClientRequestException as e: print(e.status_code) print(e.request_id) print(e.error_code) print(e.error_msg) |
集群磁盘扩容,扩容后单节点有效存储容量为200GB
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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") projectId := "{project_id}" auth := basic.NewCredentialsBuilder(). WithAk(ak). WithSk(sk). WithProjectId(projectId). Build() client := dws.NewDwsClient( dws.DwsClientBuilder(). WithRegion(region.ValueOf("<YOUR REGION>")). WithCredential(auth). Build()) request := &model.ExpandInstanceStorageRequest{} request.ClusterId = "{cluster_id}" request.Body = &model.ExpandInstanceStorage{ NewSize: int32(200), } response, err := client.ExpandInstanceStorage(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 |
磁盘扩容请求下发成功。 |
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。 |