集群缩容前检查
功能介绍
缩容前检查,确保缩容前、缩容后均满足正常操作要求。
调用方法
请参见如何调用API。
URI
GET /v1/{project_id}/clusters/{cluster_id}/shrink-check
参数 |
是否必选 |
参数类型 |
描述 |
---|---|---|---|
project_id |
是 |
String |
参数解释: 项目ID。获取方法请参见获取项目ID。 约束限制: 不涉及。 取值范围: 不涉及。 默认取值: 不涉及。 |
cluster_id |
是 |
String |
参数解释: 集群ID。获取方法请参见获取集群ID。 约束限制: 必须是有效的dws集群ID。 取值范围: 36位UUID。 默认取值: 不涉及。 |
参数 |
是否必选 |
参数类型 |
描述 |
---|---|---|---|
check_item |
是 |
String |
参数解释: 检查项,取值当前仅包含3种。 约束限制: 不涉及。 取值范围: guc:检查当前guc参数是否满足缩容条件。 schema:检查所有schema下有无影响缩容的表。 disk:检查缩容后磁盘容量是否满足要求。 默认取值: 不涉及。 |
shrink_count |
是 |
Integer |
参数解释: 待缩容节点数。 约束限制: 不涉及。 取值范围: 最小值为3,最大值为当前节点总数减3。 默认取值: 不涉及。 |
请求参数
无
响应参数
状态码:200
参数 |
参数类型 |
描述 |
---|---|---|
is_passed |
Boolean |
参数解释: 检查是否通过。如不通过,需要调整缩容节点数重试,或者是当前集群就不满足缩容前置条件。 取值范围: 不涉及。 |
请求示例
-
缩容3节点,检查项为guc参数。
POST https://{Endpoint} /v1/89cd04f168b84af6be287f71730fdb4b/clusters/4ca46bf1-5c61-48ff-b4f3-0ad4e5e3ba90/shrink-check?check_item=guc&shrink_count=3
-
缩容3节点,检查项为schema。
POST https://{Endpoint} /v1/89cd04f168b84af6be287f71730fdb4b/clusters/4ca46bf1-5c61-48ff-b4f3-0ad4e5e3ba90/shrink-check?check_item=schema&shrink_count=3
-
缩容3节点,检查项为磁盘信息。
POST https://{Endpoint} /v1/89cd04f168b84af6be287f71730fdb4b/clusters/4ca46bf1-5c61-48ff-b4f3-0ad4e5e3ba90/shrink-check?check_item=disk&shrink_count=3
响应示例
状态码:200
缩容前检查请求成功。
{ "is_passed" : true }
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 CheckClusterShrinkSolution { 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(); CheckClusterShrinkRequest request = new CheckClusterShrinkRequest(); request.withClusterId("{cluster_id}"); try { CheckClusterShrinkResponse response = client.checkClusterShrink(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 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 = CheckClusterShrinkRequest() request.cluster_id = "{cluster_id}" response = client.check_cluster_shrink(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") 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.CheckClusterShrinkRequest{} request.ClusterId = "{cluster_id}" response, err := client.CheckClusterShrink(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 |
缩容前检查请求成功。 |
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。 |