Obtaining the Instance Group Information (a V3 API)

Function

Obtain DDM instance group information.

Constraints

None

URI

• URL format

  GET /v3/{project_id}/instances/{instance_id}/groups?offset={offset}&limit={limit}

• Parameter description

  Table 1 Path parameters

  Parameter	Mandatory	Type	Description
  project_id	Yes	String	Project ID of a tenant in a region.
  instance_id	Yes	String	DDM instance ID

  Table 2 Query parameters

  Parameter	Mandatory	Type	Description
  offset	No	Integer	Index offset. The query starts from the next piece of data indexed by this parameter. The value is 0 by default. The value must be a number but cannot be a negative number.
  limit	No	Integer	Maximum records to be queried. Value range: 1 to 128. If the parameter value is not specified, 10 records are obtained by default.

Request

• Request parameters

  Table 3 Request header parameters

  Parameter	Mandatory	Type	Description
  X-Auth-Token	Yes	String	User token. You can obtain the token by calling the IAM API used to obtain a user token.

• URI example

  GET https://{endpoint}/v3/{project_id}/instances/{instance_id}/groups?offset=null&limit=null

Response

• Normal response

  Table 4 Response body parameters

  Parameter	Type	Description
  total_count	Integer	Total records
  group_list	Array of Table 5 objects	Instance group information

  Table 5 GroupInfo

  Parameter	Type	Description
  id	String	Group ID
  name	String	Group name
  role	String	Group role type, which can be read/write or read-only. Returned values: rw: read/write group r: read-only group
  endpoint	String	Connection address of the group. If load balancing is not enabled, the connection address string of the node in the group is returned.
  ipv6_endpoint	String	IPv6 connection address of the group
  is_load_balance	Boolean	Whether load balancing is enabled
  is_default_group	Boolean	Whether the API group is the default group
  cpu_num_per_node	Integer	Number of CPU cores per node
  mem_num_per_node	Integer	Memory size per node, in GB
  architecture	String	CPU architecture Returned values: x86 Arm
  node_list	Array of objects (Table 6)	Node information list

  Table 6 GroupNodeInfo

  Parameter	Type	Description
  id	String	Node ID
  name	String	Node name
  az	String	AZ to which the node belongs

• Normal response example

  { 
      "group_list":[ 
          { 
              "id":"****gr09", 
              "name":"group-default", 
              "role":"rw", 
              "endpoint":"**.**.**.**:5066", 
              "is_load_balance":true, 
              "is_default_group":false, 
              "architecture":"X86", 
              "cpu_num_per_node":4, 
              "mem_num_per_node":8, 
              "node_list":[ 
                  { 
                      "id":"****no09", 
                      "name":"node_01", 
                      "az":"some_az" 
                  } 
              ] 
          } 
      ], 
      "total_count":1 
  }

Status Code

• Normal

  200

• Abnormal

  For details, see Status Codes.

Error Codes

For details, see Error Codes.