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Help Center/ GaussDB(DWS)/ API Reference/ API Description/ Cluster Management/ Querying the Cluster List

Querying the Cluster List

Updated on 2024-04-18 GMT+08:00

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CLI Examples

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Function

This API is used to query and display the cluster list.

Call Method

For details, see Calling APIs.

URI

     
        GET /v1.0/{project_id}/clusters

**Table 1** URI parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Project ID. For details about how to obtain the ID, see Obtaining Project ID.

Request Parameters

None

Response parameters

Status code: 200

**Table 2** Response body parameter
Parameter	Type	Description
clusters	Array of ClusterInfo objects	List of cluster objects
count	Integer	Total number of cluster objects

**Table 3** ClusterInfo
Parameter	Type	Description
id	String	Cluster ID
name	String	Cluster name
status	String	Cluster status. The value can be one of the following: CREATING: The cluster is being created. ACTIVE: The cluster is available. FAILED: The cluster is unavailable. CREATION FAILED DELETING: The cluster is being deleted. DELETION FAILED: The deletion fails. DELETED: The cluster is deleted. STOPING: The task is being stopped. STOPPED: The job has been stopped. STARTING: The job is starting. FROZEN: The cluster is frozen. NOTE: If the query result is AVAILABLE, the service is available.
version	String	Data warehouse version
updated	String	Last modification time of a cluster in ISO8601:YYYY-MM-DDThh:mm:ssZ format
created	String	Cluster creation time. Format: ISO8601:YYYY-MM-DDThh:mm:ssZ
port	Integer	Cluster service port.
endpoints	Array of Endpoints objects	Private network connection information about the cluster.
nodes	Array of Nodes objects	Cluster instance
tags	Array of Tags objects	Cluster tag
user_name	String	Administrator user name
number_of_node	Integer	Number of nodes in a cluster
recent_event	Integer	Number of events
availability_zone	String	AZ
enterprise_project_id	String	Enterprise project ID. The value 0 indicates the ID of the default enterprise project.
node_type	String	Node type.
vpc_id	String	VPC ID,
subnet_id	String	Subnet ID,
public_ip	PublicIp object	Public IP address. If the parameter is not specified, public connection is not used by default.
public_endpoints	Array of PublicEndpoints objects	Public network connection information about the cluster. If the parameter is not specified, the public network connection information is not used by default.
action_progress	Map<String,String>	Task information, consisting of a key and a value. The key indicates an ongoing task, and the value indicates the progress of the ongoing task. Valid key values include: CREATING RESTORING SNAPSHOTTING GROWING REBOOTING SETTING_CONFIGURATION CONFIGURING_EXT_DATASOURCE ADD_CN_ING: A CN is being added. DEL_CN_ING: A CN is being deleted. REDISTRIBUTING ELB_BINDING: Associating ELB ELB_UNBINDING: Disassociating ELB ELB_SWITCHIN: Switching ELB nodes NETWORK_CONFIGURING: The network is being configured. DISK_EXPANDING: The disk capacity is being expanded. ACTIVE_STANDY_SWITCHOVER: The active-standby switchover is being performed. CLUSTER_SHRINKING: The cluster is being scaled in. SHRINK_CHECKING: Scale-in detection is in progress. FLAVOR_RESIZING: The instance flavor is being changed. MANAGE_IP_BINDING: Login is being enabled. FINE_GRAINED_RESTORING: Fine-grained restoration is in progress. DR_RECOVERING: DR recovery is in progress. REPAIRING An example is as follows: "action_progress": {"SNAPSHOTTING":"16%"}
sub_status	String	Sub-status of clusters in the AVAILABLE state. The value can be one of the following: NORMAL READONLY REDISTRIBUTING REDISTRIBUTION-FAILURE UNBALANCED UNBALANCED \| READONLY DEGRADED DEGRADED \| READONLY DEGRADED \| UNBALANCED UNBALANCED \| REDISTRIBUTING UNBALANCED \| REDISTRIBUTION-FAILURE READONLY \| REDISTRIBUTION-FAILURE UNBALANCED \| READONLY \| REDISTRIBUTION-FAILURE DEGRADED \| REDISTRIBUTION-FAILURE DEGRADED \| UNBALANCED \| REDISTRIBUTION-FAILURE DEGRADED \| UNBALANCED \| READONLY \| REDISTRIBUTION-FAILURE DEGRADED \| UNBALANCED \| READONLY
task_status	String	Cluster management task. The value can be one of the following: UNFREEZING FREEZING RESTORING SNAPSHOTTING GROWING REBOOTING SETTING_CONFIGURATION CONFIGURING_EXT_DATASOURCE DELETING_EXT_DATASOURCE REBOOT_FAILURE RESIZE_FAILURE ADD_CN_ING: A CN is being added. DEL_CN_ING: A CN is being deleted. CREATING_NODE: Add a node. CREATE_NODE_FAILED: Failed to add the node. DELETING_NODE: Delete a node. DELETE_NODE_FAILED: Failed to delete the node. REDISTRIBUTING REDISTRIBUTE_FAILURE: The redistribution failed. WAITING_REDISTRIBUTION: Waiting to be redistributed REDISTRIBUTION_PAUSED: Redistribution is paused. ELB_BINDING: ELB is being bound. ELB_BIND_FAILED: Failed to associate ELB ELB_UNBINDING: ELB is being unbound. ELB_UNBIND_FAILED: Failed to disassociate ELB. ELB_SWITCHING: ELB nodes are being switched. ELB_SWITCHING_FAILED: Failed to switch ELB nodes. NETWORK_CONFIGURING: The network is being configured. NETWORK_CONFIG_FAILED: Failed to configure the network. DISK_EXPAND_FAILED: Failed to expand the disk capacity. DISK_EXPANDING: The disk capacity is being expanded. ACTIVE_STANDY_SWITCHOVER: The active-standby switchover is being performed. ACTIVE_STANDY_SWITCHOVER_FAILURE: The active-standby switchover failed. CLUSTER_SHRINK_FAILED: Failed to scale-in. CLUSTER_SHRINKING: The cluster is being scaled in. SHRINK_CHECK_FAILED: The scale-in detection failed. SHRINK_CHECKING: Scale-in detection is in progress. FLAVOR_RESIZING_FAILED: Failed to change the flavor. FLAVOR_RESIZING: The instance flavor is being changed. MANAGE_IP_BIND_FAILED: Failed to enable login. MANAGE_IP_BINDING: Login is being enabled. ORDER_PENDING: The order is pending to be paid. FINE_GRAINED_RESTORING: Fine-grained restoration is in progress. DR_RECOVERING: DR recovery is in progress.
security_group_id	String	Security group ID
failed_reasons	FailedReason object	Cause of failure. If the parameter is left empty, the cluster is in the normal state.

**Table 4** Endpoints
Parameter	Type	Description
connect_info	String	Private network connection information
jdbc_url	String	Intranet JDBC URL. The default format is jdbc:postgresql://<connect_info>/<YOUR_DATABASE_NAME>

**Table 5** Nodes
Parameter	Type	Description
id	String	Cluster instance ID
status	String	Cluster instance status 100: Creating 199: Idle 200: Available 300: Unavailable 303: Creation failed. 304: Deleting 305: Deletion failed. 400: Deleted

**Table 6** Tags
Parameter	Type	Description
key	String	Key. A tag key can contain a maximum of 128 characters. It cannot be an empty string or start or end with a space. Only letters, digits, hyphens (-), and underscores (_) are allowed. It cannot contain the following characters: =*<>\,\|/
value	String	Value. A tag value can contain a maximum of 255 characters, which can be an empty string. It cannot start or end with a space. Only letters, digits, hyphens (-), and underscores (_) are allowed. It cannot contain the following characters: =*<>\,\|/

**Table 7** PublicIp
Parameter	Type	Description
public_bind_type	String	Binding type of an EIP. The value can be one of the following: auto_assign not_use bind_existing
eip_id	String	EIP ID

**Table 8** PublicEndpoints
Parameter	Type	Description
public_connect_info	String	Public network connection information
jdbc_url	String	Public network JDBC URL. The default format is jdbc:postgresql://<public_connect_info>/<YOUR_DATABASE_name>.

**Table 9** FailedReason
Parameter	Type	Description
error_code	String	Error code
error_msg	String	Error message

Example Request

GET https://{Endpoint}/v1.0/89cd04f168b84af6be287f71730fdb4b/clusters

Example Response

Status code: 200

The cluster list is queried successfully.

{
  "clusters" : [ {
    "id" : "7d85f602-a948-4a30-afd4-e84f47471c15",
    "name" : "dws-1",
    "status" : "AVAILABLE",
    "version" : "1.2.0",
    "updated" : "2016-02-10T14:28:14Z",
    "created" : "2016-02-10T14:26:14Z",
    "port" : 8000,
    "endpoints" : [ {
      "connect_info" : "dws-1.cn-north-4.myhuaweicloud.com",
      "jdbc_url" : "jdbc:postgresql://dws-1.cn-north-4.myhuaweicloud.com/<YOUR_DATABASE_name>"
    } ],
    "nodes" : [ {
      "id" : "acaf62a4-41b3-4106-bf6b-2f669d88291e",
      "status" : "200"
    }, {
      "id" : "d32de51e-4fcd-4e5a-a9dc-bb903abb494b",
      "status" : "200"
    }, {
      "id" : "d71a4a25-c9bc-4ffd-9f4a-e422aef327f9",
      "status" : "200"
    } ],
    "tags" : [ {
      "key" : "key1",
      "value" : "value1"
    }, {
      "key" : "key2",
      "value" : "value2"
    } ],
    "user_name" : "dbadmin",
    "number_of_node" : 3,
    "recent_event" : 6,
    "availability_zone" : "cn-north-4b",
    "enterprise_project_id" : "0",
    "node_type" : "dws.d1.xlarge.ultrahigh",
    "vpc_id" : "85b20d7e-9eb7-4b2a-98f3-3c8843ea3574",
    "subnet_id" : "374eca02-cfc4-4de7-8ab5-dbebf7d9a720",
    "public_ip" : {
      "public_bind_type" : "auto_assign",
      "eip_id" : "85b20d7e-9eb7-4b2a-98f3-3c8843ea3574"
    },
    "public_endpoints" : [ {
      "public_connect_info" : "dws-1.cn-north-4.myhuaweicloud.com",
      "jdbc_url" : "jdbc:postgresql://dws-1.cn-north-4.myhuaweicloud.com/<YOUR_DATABASE_name>"
    } ],
    "action_progress" : {
      "SNAPSHOTTING" : "20%"
    },
    "sub_status" : "READONLY",
    "task_status" : "SNAPSHOTTING",
    "security_group_id" : "dc3ec145-9029-4b39-b5a3-ace5a01f772b"
  } ]
}

SDK Sample Code

The sample code is as follows:

Java
Python
Go
More SDK Sample Code

      
       
         
         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 ListClustersSolution {

    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("cn-north-4"))
                .build();
        ListClustersRequest request = new ListClustersRequest();
        try {
            ListClustersResponse response = client.listClusters(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());
        }
    }
}

        

      
     

      
       
         
         # 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("cn-north-4")) \
        .build()

    try:
        request = ListClustersRequest()
        response = client.list_clusters(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)

        

      
     

      
       
         
         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("cn-north-4")).
            WithCredential(auth).
            Build())

    request := &model.ListClustersRequest{}
	response, err := client.ListClusters(request)
	if err == nil {
        fmt.Printf("%+v\n", response)
    } else {
        fmt.Println(err)
    }
}

        

      
     

For more SDK sample codes of programming languages, visit API Explorer and click the Sample Code tab. Example codes can be automatically generated.

      
       
         
         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 ListClustersSolution {

    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("cn-north-4"))
                .build();
        ListClustersRequest request = new ListClustersRequest();
        try {
            ListClustersResponse response = client.listClusters(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());
        }
    }
}

        

      
     

      
       
         
         # 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("cn-north-4")) \
        .build()

    try:
        request = ListClustersRequest()
        response = client.list_clusters(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)

        

      
     

      
       
         
         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("cn-north-4")).
            WithCredential(auth).
            Build())

    request := &model.ListClustersRequest{}
	response, err := client.ListClusters(request)
	if err == nil {
        fmt.Printf("%+v\n", response)
    } else {
        fmt.Println(err)
    }
}

        

      
     

For more SDK sample codes of programming languages, visit API Explorer and click the Sample Code tab. Example codes can be automatically generated.

Status Code

Status Code	Description
200	The cluster list is queried successfully.
400	Request error.
401	Authentication failed.
403	You do not have required permissions.
404	No resources found.
500	Internal server error.
503	Service unavailable.

Parent Topic: Cluster Management

Previous topic: Converting a Physical Cluster to a Logical Cluster

Next topic: Querying the Logical Cluster List

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