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Document Database Service

Querying DB Instances

Function

This API is used to query DB instances based on specified conditions.

URI

URI format
GET /v3/{project_id}/instances?id={id}&name={name}&mode={mode}&datastore_type={datastore_type}&vpc_id={vpc_id}&subnet_id={subnet_id}&offset={offset}&limit={limit}

Parameter description

**Table 1** Parameter description
Name	Mandatory	Type	Description
project_id	Yes	String	Specifies the project ID of a tenant in a region.
id	No	String	Specifies the DB instance ID.
name	No	String	Specifies the DB instance name. If you use the asterisk () at the beginning of the name, fuzzy search results are returned. Otherwise, the exact results are returned. NOTE: The asterisk () is a reserved character in the system and cannot be used alone.
mode	No	String	Specifies the instance type. Sharding indicates the cluster instance. ReplicaSet indicate the replica set instance.
datastore_type	No	String	Specifies the database type. The value is DDS-Community.
vpc_id	No	String	Specifies the VPC ID. To obtain this parameter value, use either of the following methods: Method 1: Log in to VPC console and view the VPC ID on the VPC details page. Method 2: See the "Querying VPCs" section in the Virtual Private Cloud API Reference.
subnet_id	No	String	Specifies the network ID of the subnet. To obtain this parameter value, use either of the following methods: Method 1: Log in to VPC console and click the target subnet on the Subnets page. You can view the network ID on the displayed page. Method 2: See the "Querying Subnets" section in the Virtual Private Cloud API Reference.
offset	No	Integer	Specifies the index position. The query starts from the next instance creation time indexed by this parameter under a specified project. If offset is set to N, the resource query starts from the N+1 piece of data The value must be greater than or equal to 0. If this parameter is not transferred, offset is set to 0 by default, indicating that the query starts from the latest created DB instance.
limit	No	Integer	Specifies the maximum allowed number of DB instances. The value ranges from 1 to 100. If this parameter is not transferred, the first 100 DB instances are queried by default.

Requests

Request header

Query all DB instances.

GET https://DDS endpoint/v3/0483b6b16e954cb88930a360d2c4e663/instances

Query DB instances based on specified conditions.

GET https://DDS endpoint/v3/0483b6b16e954cb88930a360d2c4e663/instances?offset=0&limit=10&id=ed7cc6166ec24360a5ed5c5c9c2ed726in02&name=hy&mode=ReplicaSet&datastore_type=DDS-Community&vpc_id=19e5d45d-70fd-4a91-87e9-b27e71c9891f&subnet_id=bd51fb45-2dcb-4296-8783-8623bfe89bb7

Request body
N/A

Responses

Parameter description

**Table 2** Parameter description
Name	Type	Description
instances	Array of objects	Indicates the DB instance information. For more information, see Table 3.
total_count	Integer	Indicates the total number of queried records.

**Table 3** instances field data structure description
Name	Type	Description
id	String	Indicates the DB instance ID.
name	String	Indicates the DB instance name.
status	String	Indicates the DB instance status. Valid value: normal: indicates that the instance is running properly. abnormal: indicates that the instance is abnormal. creating: indicates that the instance is being created. data_disk_full: indicates that the instance disk is full. createfail: indicates that the instance failed to be created. enlargefail: indicates that nodes failed to be added to the instance.
port	Integer	Indicates the database port number. The port range is from 2100 to 9500.
mode	String	Indicates the instance type, which is the same as the request parameter.
region	String	Indicates the region where the DB instance is deployed.
datastore	Object	Indicates the database information. For more information, see Table 4.
engine	String	Indicates the storage engine. The value is wiredTiger.
created	String	Indicates the DB instance creation time.
updated	String	Indicates the time when a DB instance is updated.
db_user_name	String	Indicates the default username. The value is rwuser.
ssl	Integer	Indicates that SSL is enabled or not. 1: indicate that SSL is enabled. 0: indicate that SSL is disabled.
vpc_id	String	Indicates the VPC ID.
subnet_id	String	Indicates the network ID of the subnet.
security_group_id	String	Indicates the security group ID.
backup_strategy	Object	Indicates the backup policy. For more information, see Table 5.
pay_mode	String	0 indicates the pay-per-use billing mode.
maintenance_window	String	Indicates the maintenance time window.
groups	Array of objects	Indicates group information. For more information, see Table 6.
time_zone	String	Indicates the time zone.
actions	Array of strings	Indicates the operation that is executed on the DB instance.

**Table 4** datastore field data structure description
Name	Type	Description
type	String	Indicates the DB engine.
version	String	Indicates the database version.

**Table 5** backup_strategy field data structure description
Name	Type	Description
start_time	String	Indicates the backup time window. Automated backups will be triggered during the backup time window. The current time is the UTC time.
keep_days	Integer	Indicates the number of days to retain the generated backup files. The value range is from 0 to 732.

**Table 6** groups field data structure description
Name	Type	Description
type	String	Indicates the node type. Valid value: shard config mongos replica
id	String	Indicates the group ID. This parameter is valid only when the node type is shard or config.
name	String	Indicates the group name. This parameter is valid only when the node type is shard or config.
status	String	Indicates the group status. This parameter is valid only when the node type is shard or config.
volume	Object	Indicates the volume information. For more information, see Table 7. This parameter is valid only when the node type is shard, config, or replica.
nodes	Array of objects	Indicates node information. For more information, see Table 8.

**Table 7** volume field data structure description
Name	Type	Description
size	String	Indicates the disk size. Unit: GB
used	String	Indicates the disk usage. Unit: GB

**Table 8** nodes field data structure description
Name	Type	Description
id	String	Indicates the node ID.
name	String	Indicates the node name.
status	String	Indicates the node status.
role	String	Indicates the node role. Valid value: master: This value is returned for the mongos node. Primary: This value is returned for the primary shard and config nodes, and the primary node of a replica set. Secondary: This value is returned for the secondary shard and config nodes, and the secondary node of a replica set. Hidden: This value is returned for the hidden shard and config nodes, and the hidden node of a replica set. unknown. This value is returned when the node is abnormal.
private_ip	String	Indicates the private IP address of a node. This parameter is valid only for mongos nodes and replica set instances. The value exists after the ECS is created successfully. Otherwise, the value is "".
public_ip	String	Indicates the EIP that has been bound. This parameter is valid only for mongos nodes of cluster instances and the primary and secondary nodes of replica set instances.
spec_code	String	Indicates the resource specification code. For details about the instance specifications, see the value of the flavors.spec_code parameter in Querying All DB Instance Specifications.
availability_zone	String	Indicates the AZ.

The values of region and availability_zone are used as examples.

Response example

Query all DB instances.

{ 
    "instances": [
        {
            "id": "8436a91546294036b75931e879882200in02",
            "name": "dds-efa6",
            "status": "normal",
            "port": "8635",
            "mode": "ReplicaSet",
            "region": "aaa",
            "datastore": {
                "type": "DDS-Community",
                "version": "3.4"
            },
            "engine": "wiredTiger",
            "created": "2019-01-17T07:05:52",
            "updated": "2019-01-17T07:05:47",
            "db_user_name": "rwuser",
            "ssl": "1",
            "vpc_id": "674e9b42-cd8d-4d25-a2e6-5abcc565b961",
            "subnet_id": "f1df08c5-71d1-406a-aff0-de435a51007b",
            "security_group_id": "7aa51dbf-5b63-40db-9724-dad3c4828b58",
            "backup_strategy": {
                "start_time": "16:00-17:00",
                "keep_days": 7
            },
            "pay_mode": "0",
            "maintenance_window": "02:00-06:00",
            "groups": [
                {
                    "type": "replica",
                    "volume": {
                        "size": "10",
                        "used": "0.33"
                    },
                    "nodes": [
                        {
                            "id": "233eaac9c6f245c0bb9c2d21eea12d1bno02",
                            "name": "dds-efa6_replica_node_2",
                            "status": "normal",
                            "role": "Primary",
                            "private_ip": "192.168.0.174",
                            "public_ip": "",
                            "spec_code": "dds.s2.medium.4.shard",
                            "availability_zone": "bbb"
                        },
                        {
                            "id": "d57d76d6320a4a7b86db82c317550c4ano02",
                            "name": "dds-efa6_replica_node_1",
                            "status": "normal",
                            "role": "Hidden",
                            "private_ip": "192.168.0.39",
                            "public_ip": "",
                            "spec_code": "dds.s2.medium.4.shard",
                            "availability_zone": "bbb"
                        },
                        {
                            "id": "f46b0a1cf4d9400e9fd7af17f8742d37no02",
                            "name": "dds-efa6_replica_node_3",
                            "status": "normal",
                            "role": "Secondary",
                            "private_ip": "192.168.0.176",
                            "public_ip": "",
                            "spec_code": "dds.s2.medium.4.shard",
                            "availability_zone": "bbb"
                        }
                    ]
                }
            ],
            "time_zone": "",
            "actions": [
              "CREATE"
             ]
        },
        {
            "id": "9136fd2a9fcd405ea4674276ce36dae8in02",
            "name": "dds-32f4",
            "status": "normal",
            "port": "8635",
            "mode": "Sharding",
            "region": "aaa",
            "datastore": {
                "type": "DDS-Community",
                "version": "3.4"
            },
            "engine": "wiredTiger",
            "created": "2019-01-17T07:04:37",
            "updated": "2019-01-17T07:04:31",
            "db_user_name": "rwuser",
            "ssl": "1",
            "vpc_id": "674e9b42-cd8d-4d25-a2e6-5abcc565b961",
            "subnet_id": "f1df08c5-71d1-406a-aff0-de435a51007b",
            "security_group_id": "7aa51dbf-5b63-40db-9724-dad3c4828b58",
            "backup_strategy": {
                "start_time": "19:00-20:00",
                "keep_days": 7
            },
            "pay_mode": "0",
            "maintenance_window": "02:00-06:00",
            "groups": [
                {
                    "type": "mongos",
                    "nodes": [
                        {
                            "id": "a742c13a284949adad177672e8a0f01cno02",
                            "name": "dds-32f4_mongos_node_1",
                            "status": "normal",
                            "role": "master",
                            "private_ip": "192.168.0.56",
                            "public_ip": "",
                            "spec_code": "dds.c3.medium.4.mongos",
                            "availability_zone": "bbb"
                        },
                        {
                            "id": "d4f66666b1d64ab28719da0526341c7eno02",
                            "name": "dds-32f4_mongos_node_2",
                            "status": "normal",
                            "role": "master",
                            "private_ip": "192.168.0.185",
                            "public_ip": "",
                            "spec_code": "dds.c3.medium.4.mongos",
                            "availability_zone": "bbb"
                        }
                    ]
                },
                {
                    "type": "shard",
                    "id": "d1b92d2cbd544e85ac7ce6a7f33ba205gr02",
                    "name": "shard_2",
                    "status": "normal",
                    "volume": {
                        "size": "10",
                        "used": "0.33"
                    },
                    "nodes": [
                        {
                            "id": "0e9abaebe5974b63a5b221de6ee34cfeno02",
                            "name": "dds-32f4_shard_2_node_3",
                            "status": "normal",
                            "role": "Primary",
                            "spec_code": "dds.c3.medium.4.shard",
                            "availability_zone": "bbb"
                        },
                        {
                            "id": "1d7f4c5476c04cc187f920925c2b601fno02",
                            "name": "dds-32f4_shard_2_node_2",
                            "status": "normal",
                            "role": "Hidden",
                            "spec_code": "dds.c3.medium.4.shard",
                            "availability_zone": "bbb"
                        },
                        {
                            "id": "3dd2cce03da54fc08f10651cbfea778dno02",
                            "name": "dds-32f4_shard_2_node_1",
                            "status": "normal",
                            "role": "Secondary",
                            "spec_code": "dds.c3.medium.4.shard",
                            "availability_zone": "bbb"
                        }
                    ]
                },
                {
                    "type": "shard",
                    "id": "06439baa35c146d3a8965af59d370908gr02",
                    "name": "shard_1",
                    "status": "normal",
                    "volume": {
                        "size": "10",
                        "used": "0.33"
                    },
                    "nodes": [
                        {
                            "id": "0f6744d7e29f42ff80fc1a36cc145042no02",
                            "name": "dds-32f4_shard_1_node_1",
                            "status": "normal",
                            "role": "Primary",
                            "spec_code": "dds.c3.medium.4.shard",
                            "availability_zone": "bbb"
                        },
                        {
                            "id": "3abcb399113b4512bd5a906da54e8753no02",
                            "name": "dds-32f4_shard_1_node_3",
                            "status": "normal",
                            "role": "Hidden",
                            "spec_code": "dds.c3.medium.4.shard",
                            "availability_zone": "bbb"
                        },
                        {
                            "id": "c149f70563494501b5706cad225a8ebdno02",
                            "name": "dds-32f4_shard_1_node_2",
                            "status": "normal",
                            "role": "Secondary",
                            "spec_code": "dds.c3.medium.4.shard",
                            "availability_zone": "bbb"
                        }
                    ]
                },
                {
                    "type": "config",
                    "id": "84e7c96b82aa4fedb3b00f98edd71ba4gr02",
                    "name": "config",
                    "status": "normal",
                    "volume": {
                        "size": "20",
                        "used": "0.33"
                    },
                    "nodes": [
                        {
                            "id": "7422f7331b714ac39aa647a1ec968d33no02",
                            "name": "dds-32f4_config_node_2",
                            "status": "normal",
                            "role": "Primary",
                            "spec_code": "dds.c3.large.2.config",
                            "availability_zone": "bbb"
                        },
                        {
                            "id": "9e3b343151044eda91ddb8a42ae5cbefno02",
                            "name": "dds-32f4_config_node_3",
                            "status": "normal",
                            "role": "Hidden",
                            "spec_code": "dds.c3.large.2.config",
                            "availability_zone": "bbb"
                        },
                        {
                            "id": "c0053ca460ac4889841ffb14a886ec54no02",
                            "name": "dds-32f4_config_node_1",
                            "status": "normal",
                            "role": "Secondary",
                            "spec_code": "dds.c3.large.2.config",
                            "availability_zone": "bbb"
                        }
                    ]
                }
            ],
            "time_zone": "",
            "actions": [
              "CREATE"
             ]
        }
    ],
    "total_count": 2
}

Status Code

For more information, see Status Code.

Error Code

For more information, see Error Code.

Parent topic: DB Instance Management

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Document Database Service

Querying DB Instances

Function

URI

Requests

Responses

Status Code

Error Code