Adding Instances and Expanding Instance Storage Capacity
Function
This API is used to add instances of different types and expand instance storage capacity in a cluster. This API is available for clusters with master, client, or cold data nodes.
Calling Method
For details, see Calling APIs.
URI
POST /v1.0/{project_id}/clusters/{cluster_id}/role_extend
Parameter |
Mandatory |
Type |
Description |
---|---|---|---|
project_id |
Yes |
String |
Definition: Project ID. For details about how to obtain the project ID and name, see Obtaining the Project ID and Name. Constraints: N/A Value range: Project ID of the account. Default value: N/A |
cluster_id |
Yes |
String |
Definition: ID of the cluster you want to scale out. For details about how to obtain the cluster ID, see Obtaining the Cluster ID. Constraints: N/A Value range: Cluster ID. Default value: N/A |
Request Parameters
Parameter |
Mandatory |
Type |
Description |
---|---|---|---|
grow |
Yes |
Array of RoleExtendGrowReq objects |
Definition: Detailed description about the cluster scale-out request. Constraints: N/A Value range: N/A Default value: N/A |
is_auto_pay |
No |
Integer |
Definition: Whether to enable automatic payment from your Huawei Cloud account. Constraints: This parameter takes effect only for yearly/monthly clusters. Value range:
Default value: 0 |
Parameter |
Mandatory |
Type |
Description |
---|---|---|---|
type |
Yes |
String |
Definition: Type of the instance to be scaled out. Constraints: You can only add instances, rather than increase storage capacity, on nodes of the ess-master and ess-client types. Value range:
You can select multiple node types, but cannot select the same node for different roles. Default value: N/A |
nodesize |
Yes |
Integer |
Definition: Number of instances you want to add. Constraints: After scaling, the number of nodes of each type must meet the following requirements:
Value range: See Constraints. Default value: N/A |
disksize |
Yes |
Integer |
Definition: Storage capacity of the instance to be expanded. The sum of the original instance storage capacity plus the expanded instance storage capacity cannot exceed the default upper limit of storage capacity set during cluster creation. If there is no need to add more instances, set this parameter to 0. With a yearly/monthly cluster, you cannot change the number of nodes and disk capacity at the same time. Unit: GB Constraints:
Value range: N/A Default value: N/A |
Response Parameters
Status code: 200
Parameter |
Type |
Description |
---|---|---|
id |
String |
Definition: Cluster ID. Value range: N/A |
Example Requests
Change the number of instances and storage capacity of the current cluster.
POST https://{Endpoint}/v1.0/{project_id}/clusters/4f3deec3-efa8-4598-bf91-560aad1377a3/role_extend { "grow" : [ { "type" : "ess-master", "nodesize" : 2, "disksize" : 0 }, { "type" : "ess", "nodesize" : 0, "disksize" : 40 }, { "type" : "ess-client", "nodesize" : 1, "disksize" : 0 } ], "is_auto_pay" : 1 }
Example Responses
Status code: 200
Request succeeded.
{ "id" : "4f3deec3-efa8-4598-bf91-560aad1377a3" }
SDK Sample Code
The SDK sample code is as follows.
Java
Change the number of instances and storage capacity of the current cluster.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 |
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.css.v1.region.CssRegion; import com.huaweicloud.sdk.css.v1.*; import com.huaweicloud.sdk.css.v1.model.*; import java.util.List; import java.util.ArrayList; public class UpdateExtendInstanceStorageSolution { 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); CssClient client = CssClient.newBuilder() .withCredential(auth) .withRegion(CssRegion.valueOf("<YOUR REGION>")) .build(); UpdateExtendInstanceStorageRequest request = new UpdateExtendInstanceStorageRequest(); request.withClusterId("{cluster_id}"); RoleExtendReq body = new RoleExtendReq(); List<RoleExtendGrowReq> listbodyGrow = new ArrayList<>(); listbodyGrow.add( new RoleExtendGrowReq() .withType("ess-master") .withNodesize(2) .withDisksize(0) ); listbodyGrow.add( new RoleExtendGrowReq() .withType("ess") .withNodesize(0) .withDisksize(40) ); listbodyGrow.add( new RoleExtendGrowReq() .withType("ess-client") .withNodesize(1) .withDisksize(0) ); body.withIsAutoPay(1); body.withGrow(listbodyGrow); request.withBody(body); try { UpdateExtendInstanceStorageResponse response = client.updateExtendInstanceStorage(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()); } } } |
Python
Change the number of instances and storage capacity of the current cluster.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 |
# coding: utf-8 import os from huaweicloudsdkcore.auth.credentials import BasicCredentials from huaweicloudsdkcss.v1.region.css_region import CssRegion from huaweicloudsdkcore.exceptions import exceptions from huaweicloudsdkcss.v1 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 = CssClient.new_builder() \ .with_credentials(credentials) \ .with_region(CssRegion.value_of("<YOUR REGION>")) \ .build() try: request = UpdateExtendInstanceStorageRequest() request.cluster_id = "{cluster_id}" listGrowbody = [ RoleExtendGrowReq( type="ess-master", nodesize=2, disksize=0 ), RoleExtendGrowReq( type="ess", nodesize=0, disksize=40 ), RoleExtendGrowReq( type="ess-client", nodesize=1, disksize=0 ) ] request.body = RoleExtendReq( is_auto_pay=1, grow=listGrowbody ) response = client.update_extend_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) |
Go
Change the number of instances and storage capacity of the current cluster.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 |
package main import ( "fmt" "github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic" css "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/css/v1" "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/css/v1/model" region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/css/v1/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 := css.NewCssClient( css.CssClientBuilder(). WithRegion(region.ValueOf("<YOUR REGION>")). WithCredential(auth). Build()) request := &model.UpdateExtendInstanceStorageRequest{} request.ClusterId = "{cluster_id}" var listGrowbody = []model.RoleExtendGrowReq{ { Type: "ess-master", Nodesize: int32(2), Disksize: int32(0), }, { Type: "ess", Nodesize: int32(0), Disksize: int32(40), }, { Type: "ess-client", Nodesize: int32(1), Disksize: int32(0), }, } isAutoPayRoleExtendReq:= int32(1) request.Body = &model.RoleExtendReq{ IsAutoPay: &isAutoPayRoleExtendReq, Grow: listGrowbody, } response, err := client.UpdateExtendInstanceStorage(request) if err == nil { fmt.Printf("%+v\n", response) } else { fmt.Println(err) } } |
More
For SDK sample code of more programming languages, see the Sample Code tab in API Explorer. SDK sample code can be automatically generated.
Status Codes
Status Code |
Description |
---|---|
200 |
Request succeeded. |
400 |
Invalid request. Modify the request before retry. |
404 |
The requested resource could not be found. Modify the request before retry. |
Error Codes
See Error Codes.
Feedback
Was this page helpful?
Provide feedbackThank you very much for your feedback. We will continue working to improve the documentation.See the reply and handling status in My Cloud VOC.
For any further questions, feel free to contact us through the chatbot.
Chatbot