从空闲节点扩容
功能介绍
该接口用于从空闲节点扩容。
调用方法
请参见如何调用API。
URI
POST /v2/{project_id}/clusters/{cluster_id}/resize-with-existed-nodes
请求参数
参数 |
是否必选 |
参数类型 |
描述 |
---|---|---|---|
scale_out |
是 |
ScaleOut object |
扩容对象。 |
force_backup |
否 |
Boolean |
是否强制备份。 |
mode |
否 |
String |
扩容备份模式,默认离线read-only。 |
logical_cluster_name |
否 |
String |
逻辑集群名称。非逻辑集群模式下该字段不填,逻辑集群模式下默认elastic_group。 |
expand_with_existed_node |
是 |
Boolean |
是否是使用已添加的空闲节点进行扩容。 |
auto_redistribute |
否 |
Boolean |
扩容完成后是否自动启动重分布,默认true。 |
redis_conf |
否 |
RedisConfReq object |
重分布配置信息。 |
响应参数
无
请求示例
POST https://{Endpoint}/v2/89cd04f168b84af6be287f71730fdb4b/clusters/4ca46bf1-5c61-48ff-b4f3-0ad4e5e3ba90/resize-with-existed-nodes { "scale_out" : { "count" : 3 }, "expand_with_existed_node" : true, "auto_redistribute" : true, "redis_conf" : { "redis_mode" : "offLine", "parallel_jobs" : 4 } }
响应示例
状态码: 200
从空闲节点扩容成功。
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 ResizeClusterWithExistedNodesSolution { 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(); ResizeClusterWithExistedNodesRequest request = new ResizeClusterWithExistedNodesRequest(); ResizeClusterWithExistedNodesRequestBody body = new ResizeClusterWithExistedNodesRequestBody(); BuildTaskInfo buildTaskInfobody = new BuildTaskInfo(); buildTaskInfobody.withBuildMode("read-only"); RedisConf redisConfbody = new RedisConf(); redisConfbody.withRedisMode("offLine") .withParallelJobs(4) .withParallelJob(4); ScaleOut scaleOutbody = new ScaleOut(); scaleOutbody.withCount(3); body.withBuildTaskInfo(buildTaskInfobody); body.withRedisConf(redisConfbody); body.withIsSchedulerBuildMode(false); body.withAutoRedistribute(true); body.withCreateNodeOnly(true); body.withExpandWithExistedNode(true); body.withLogicalClusterName("test-logical-cluster"); body.withMode("read-only"); body.withForceBackup(false); body.withScaleOut(scaleOutbody); request.withBody(body); try { ResizeClusterWithExistedNodesResponse response = client.resizeClusterWithExistedNodes(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 = ResizeClusterWithExistedNodesRequest() buildTaskInfobody = BuildTaskInfo( build_mode="read-only" ) redisConfbody = RedisConf( redis_mode="offLine", parallel_jobs=4, parallel_job=4 ) scaleOutbody = ScaleOut( count=3 ) request.body = ResizeClusterWithExistedNodesRequestBody( build_task_info=buildTaskInfobody, redis_conf=redisConfbody, is_scheduler_build_mode=False, auto_redistribute=True, create_node_only=True, expand_with_existed_node=True, logical_cluster_name="test-logical-cluster", mode="read-only", force_backup=False, scale_out=scaleOutbody ) response = client.resize_cluster_with_existed_nodes(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.ResizeClusterWithExistedNodesRequest{} buildTaskInfobody := &model.BuildTaskInfo{ BuildMode: "read-only", } redisConfbody := &model.RedisConf{ RedisMode: "offLine", ParallelJobs: int32(4), ParallelJob: int32(4), } scaleOutbody := &model.ScaleOut{ Count: int32(3), } request.Body = &model.ResizeClusterWithExistedNodesRequestBody{ BuildTaskInfo: buildTaskInfobody, RedisConf: redisConfbody, IsSchedulerBuildMode: false, AutoRedistribute: true, CreateNodeOnly: true, ExpandWithExistedNode: true, LogicalClusterName: "test-logical-cluster", Mode: "read-only", ForceBackup: false, ScaleOut: scaleOutbody, } response, err := client.ResizeClusterWithExistedNodes(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 |
从空闲节点扩容成功。 |
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。 |