Creating a Logical Cluster
Function
This API is used to create a logical cluster.
Calling Method
For details, see Calling APIs.
URI
POST /v2/{project_id}/clusters/{cluster_id}/logical-clusters
| Parameter | Mandatory | Type | Description |
|---|---|---|---|
| project_id | Yes | String | Definition Project ID. To obtain the value, see Obtaining a Project ID. Constraints N/A Range N/A Default Value N/A |
| cluster_id | Yes | String | Definition Cluster ID. For details about how to obtain the value, see Obtaining the Cluster ID. Constraints The value must be a valid DWS cluster ID. Range It is a 36-digit UUID. Default Value N/A |
Request Parameters
| Parameter | Mandatory | Type | Description |
|---|---|---|---|
| logical_cluster | Yes | CreateLogicalClusterInfo object | Definition Information required for creating a logical cluster. Constraints N/A Range N/A Default Value N/A |
| Parameter | Mandatory | Type | Description |
|---|---|---|---|
| logical_cluster_name | Yes | String | Definition Logical cluster name. Constraints N/A Range N/A Default Value N/A |
| cluster_rings | Yes | Array of ClusterRing objects | Definition Information of the logical cluster ring. Constraints N/A Range N/A Default Value N/A |
| Parameter | Mandatory | Type | Description |
|---|---|---|---|
| ring_hosts | Yes | Array of RingHost objects | Definition Cluster host information. Constraints N/A Range N/A Default Value N/A |
| un_shrinkable_cluster_ring | No | Boolean | Definition Whether scale-in is supported. Constraints N/A Range false or true Default Value N/A |
| Parameter | Mandatory | Type | Description |
|---|---|---|---|
| host_name | Yes | String | Definition Host name. Constraints N/A Range N/A Default Value N/A |
| back_ip | Yes | String | Definition Backend IP address. Constraints N/A Range N/A Default Value N/A |
| cpu_cores | Yes | Integer | Definition Number of host CPUs. Constraints N/A Range N/A Default Value N/A |
| memory | Yes | Double | Definition Host memory. Constraints N/A Range N/A Default Value N/A |
| disk_size | Yes | Double | Definition Disk size of the host. Constraints N/A Range N/A Default Value N/A |
Response Parameters
Status code: 200
| Parameter | Type | Description |
|---|---|---|
| error_code | String | Definition Error code. Range N/A |
| error_msg | String | Definition Error message. Range N/A |
Example Requests
Create a logical cluster.
POST https://{Endpoint}/v2/9b06d044ea4f49f1a58b2bed2b0084bd/clusters/9b7ff56b-47b3-4d00-a1fd-4c023d34404b/logical-clusters
{
"logical_cluster" : {
"logical_cluster_name" : "v3_logical",
"cluster_rings" : [ {
"ring_hosts" : [ {
"host_name" : "host-172-16-20-246",
"back_ip" : "172.16.73.90",
"cpu_cores" : 8,
"memory" : 32.0,
"disk_size" : 800.0
}, {
"host_name" : "host-172-16-4-26",
"back_ip" : "172.16.123.5",
"cpu_cores" : 8,
"memory" : 32.0,
"disk_size" : 800.0
}, {
"host_name" : "host-172-16-4-26",
"back_ip" : "172.16.123.5",
"cpu_cores" : 8,
"memory" : 32.0,
"disk_size" : 800.0
} ]
} ]
}
} Example Responses
Status code: 200
Request for creating a logical cluster submitted.
{
"error_code" : "DWS.0000",
"error_msg" : null
} SDK Sample Code
The SDK sample code is as follows.
Create a logical 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 74 75 76 77 78 79 80 81 82 83 84 85 86 | 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.*; import java.util.List; import java.util.ArrayList; public class CreateLogicalClusterSolution { 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(); CreateLogicalClusterRequest request = new CreateLogicalClusterRequest(); request.withClusterId("{cluster_id}"); CreateLogicalClusterRequestBody body = new CreateLogicalClusterRequestBody(); List<RingHost> listClusterRingsRingHosts = new ArrayList<>(); listClusterRingsRingHosts.add( new RingHost() .withHostName("host-172-16-20-246") .withBackIp("172.16.73.90") .withCpuCores(8) .withMemory((double)32.0) .withDiskSize((double)800.0) ); listClusterRingsRingHosts.add( new RingHost() .withHostName("host-172-16-4-26") .withBackIp("172.16.123.5") .withCpuCores(8) .withMemory((double)32.0) .withDiskSize((double)800.0) ); listClusterRingsRingHosts.add( new RingHost() .withHostName("host-172-16-4-26") .withBackIp("172.16.123.5") .withCpuCores(8) .withMemory((double)32.0) .withDiskSize((double)800.0) ); List<ClusterRing> listLogicalClusterClusterRings = new ArrayList<>(); listLogicalClusterClusterRings.add( new ClusterRing() .withRingHosts(listClusterRingsRingHosts) ); CreateLogicalClusterInfo logicalClusterbody = new CreateLogicalClusterInfo(); logicalClusterbody.withLogicalClusterName("v3_logical") .withClusterRings(listLogicalClusterClusterRings); body.withLogicalCluster(logicalClusterbody); request.withBody(body); try { CreateLogicalClusterResponse response = client.createLogicalCluster(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()); } } } |
Create a logical 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 | # 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 = CreateLogicalClusterRequest() request.cluster_id = "{cluster_id}" listRingHostsClusterRings = [ RingHost( host_name="host-172-16-20-246", back_ip="172.16.73.90", cpu_cores=8, memory=32.0, disk_size=800.0 ), RingHost( host_name="host-172-16-4-26", back_ip="172.16.123.5", cpu_cores=8, memory=32.0, disk_size=800.0 ), RingHost( host_name="host-172-16-4-26", back_ip="172.16.123.5", cpu_cores=8, memory=32.0, disk_size=800.0 ) ] listClusterRingsLogicalCluster = [ ClusterRing( ring_hosts=listRingHostsClusterRings ) ] logicalClusterbody = CreateLogicalClusterInfo( logical_cluster_name="v3_logical", cluster_rings=listClusterRingsLogicalCluster ) request.body = CreateLogicalClusterRequestBody( logical_cluster=logicalClusterbody ) response = client.create_logical_cluster(request) print(response) except exceptions.ClientRequestException as e: print(e.status_code) print(e.request_id) print(e.error_code) print(e.error_msg) |
Create a logical 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 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.CreateLogicalClusterRequest{} request.ClusterId = "{cluster_id}" var listRingHostsClusterRings = []model.RingHost{ { HostName: "host-172-16-20-246", BackIp: "172.16.73.90", CpuCores: int32(8), Memory: float64(32.0), DiskSize: float64(800.0), }, { HostName: "host-172-16-4-26", BackIp: "172.16.123.5", CpuCores: int32(8), Memory: float64(32.0), DiskSize: float64(800.0), }, { HostName: "host-172-16-4-26", BackIp: "172.16.123.5", CpuCores: int32(8), Memory: float64(32.0), DiskSize: float64(800.0), }, } var listClusterRingsLogicalCluster = []model.ClusterRing{ { RingHosts: listRingHostsClusterRings, }, } logicalClusterbody := &model.CreateLogicalClusterInfo{ LogicalClusterName: "v3_logical", ClusterRings: listClusterRingsLogicalCluster, } request.Body = &model.CreateLogicalClusterRequestBody{ LogicalCluster: logicalClusterbody, } response, err := client.CreateLogicalCluster(request) if err == nil { fmt.Printf("%+v\n", response) } else { fmt.Println(err) } } |
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 for creating a logical cluster submitted. |
| 400 | Request error. |
| 401 | Authentication failed. |
| 403 | You do not have required permissions. |
| 500 | Internal server error. |
| 503 | Service unavailable. |
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