Querying Details About DB Instances
Function
This API is used to query DB instances according to search criteria.
- Before calling an API, you need to understand the API in Authentication.
URI
- URI format
GET /v3/{project_id}/instances?id={id}&name={name}&type={type}&datastore_type={datastore_type}&vpc_id={vpc_id}&subnet_id={subnet_id}&offset={offset}&limit={limit}
- Example
- Querying all DB instances
https://{Endpoint}/v3/97b026aa9cc4417888c14c84a1ad9860/instances
- Querying DB instances based on search criteria
https://{Endpoint}/v3/97b026aa9cc4417888c14c84a1ad9860/instances?id=ed7cc6166ec24360a5ed5c5c9c2ed726in01&name=hy&type=Ha&datastore_type=MySQL&vpc_id=19e5d45d-70fd-4a91-87e9-b27e71c9891f&subnet_id=bd51fb45-2dcb-4296-8783-8623bfe89bb7&offset=0&limit=10
- Querying all DB instances
- Parameter description
Table 1 Parameter description Name
Type
Mandatory
Description
project_id
String
Yes
Specifies the project ID of a tenant in a region.
For details about how to obtain the project ID, see Obtaining a Project ID.
id
String
No
Specifies the DB instance ID.
The asterisk (*) is reserved for the system. If the instance ID starts with *, it indicates that fuzzy match is performed based on the value following * Otherwise, the exact match is performed based on the instance ID. The value cannot contain only asterisks (*).
name
String
No
Specifies the DB instance name.
The asterisk (*) is reserved for the system. If the instance name starts with *, it indicates that fuzzy match is performed based on the value following * Otherwise, the exact match is performed based on the instance name. The value cannot contain only asterisks (*).
type
String
No
Specifies the instance type-based query. The value is Single, Ha, Replica, or Enterprise, which corresponds to single instance, primary/standby instance, read replica, and distributed instance (enterprise), respectively.
datastore_type
String
No
Specifies the database type. Its value can be any of the following and is case-sensitive:
- MySQL
- PostgreSQL
vpc_id
String
No
Specifies the VPC ID.
- Method 1: Log in to VPC console and view the VPC ID in the VPC details.
- Method 2: See the "Querying VPCs" section in the Virtual Private Cloud API Reference.
subnet_id
String
No
Specifies the network ID of the subnet.
- 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
Integer
No
Specifies the index position. If offset is set to N, the resource query starts from the N+1 piece of data. The value is 0 by default, indicating that the query starts from the first piece of data. The value cannot be a negative number.
limit
Integer
No
Specifies the number of records to be queried. The default value is 100. The value cannot be a negative number. The minimum value is 1 and the maximum value is 100.
Request
None
Response
- Normal response
Table 2 Parameter description Name
Type
Description
instances
Array of objects
Indicates the DB instance information.
For details, see Table 3.
total_count
Integer
Indicates the total number of records.
Table 3 instances field data structure description Name
Type
Description
id
String
Indicates the DB instance ID.
name
String
Indicates the created DB instance name.
status
String
Indicates the DB instance status.
Value:
If the value is BUILD, the DB instance is being created.
If the value is ACTIVE, the DB instance is normal.
If the value is FAILED, the DB instance is abnormal.
If the value is MODIFYING, the DB instance is being scaled up.
If the value is REBOOTING, the DB instance is being rebooted.
If the value is RESTORING, the DB instance is being restored.
If the value is MODIFYING INSTANCE TYPE, the DB instance is changing from primary to standby.
If the value is SWITCHOVER, the primary/standby switchover is being performed.
If the value is MIGRATING, the DB instance is being migrated.
If the value is BACKING UP, the DB instance is being backed up.
If the value is MODIFYING DATABASE PORT, the database port is being changed.
alias
String
Indicates the DB instance alias.
private_ips
List<String>
Indicates the private IP address list. It is a blank string until an ECS is created.
private_dns_names
List<String>
Indicates the private domain name list of the DB instance. After a DB instance is created, you need to manually apply for a private domain name.
public_ips
List<String>
Indicates the public IP address list.
port
Integer
Indicates the database port number.
- The RDS for MySQL database port ranges from 1024 to 65535 (excluding 12017 and 33071, which are occupied by the RDS system and cannot be used).
- The RDS for PostgreSQL database port ranges from 2100 to 9500.
If this parameter is not set, the default value is as follows:
- RDS for MySQL: 3306.
- RDS for PostgreSQL: 5432
type
String
The value is Single, Ha, Replica, or Enterprise, which corresponds to single instance, primary/standby instance, read replica, and distributed instance (enterprise), respectively.
ha
Object
Indicates the primary/standby DB instance information. Returned only when you obtain a primary/standby DB instance list.
For details, see Table 4.
region
String
Indicates the region where the DB instance is deployed.
datastore
Object
Indicates the database information.
For details, see Table 5.
created
String
Indicates the creation time in the "yyyy-mm-ddThh:mm:ssZ" format.
T is the separator between the calendar and the hourly notation of time. Z indicates the time zone offset. For example, if the time zone offset is one hour, the value of Z is +0100.
The value is empty when the DB instance is being created. After the DB instance is created, the value is not empty.
updated
String
Indicates the update time. The format is the same as that of the created field.
The value is empty when the DB instance is being created. After the DB instance is created, the value is not empty.
db_user_name
String
Indicates the default username.
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.
flavor_ref
String
Indicates the specification code.
volume
Object
Indicates the volume information.
For details, see Table 6.
switch_strategy
String
Indicates the database switchover policy. The value can be reliability or availability, indicating the reliability first and availability first, respectively.
backup_strategy
Object
Indicates the backup policy.
For details, see Table 7.
maintenance_window
String
Indicates the start time of the maintenance time window in the UTC format.
nodes
Array of objects
Indicates the primary/standby DB instance information.
For details, see Table 8.
related_instance
Array of objects
Indicates the list of associated DB instances.
For details, see Table 9.
time_zone
String
Indicates the time zone.
backup_used_space
Double
Indicates the backup space usage in GB.
This field is returned only when you query information about a specified RDS for SQL Server DB instance.
storage_used_space
Double
Indicates the storage space usage in GB.
This field is returned only when you query information about a specified RDS for SQL Server DB instance.
Table 4 ha field data structure description Name
Type
Description
replication_mode
String
Indicates the replication mode for the standby DB instance.
The value cannot be empty.
- For RDS for MySQL, the value is async or semisync.
- For RDS for PostgreSQL, the value is async or sync.
NOTE:- async indicates the asynchronous replication mode.
- semisync indicates the semi-synchronous replication mode.
- sync indicates the synchronous replication mode.
Table 5 datastore field data structure description Name
Type
Description
type
String
Indicates the DB engine. Its value can be any of the following and is case-insensitive:
- MySQL
- PostgreSQL
version
String
Indicates the database version.
Table 6 volume field data structure description Name
Type
Description
type
String
Indicates the volume type.
size
Integer
Indicates the volume size.
Table 7 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 time is in the UTC format.
keep_days
Integer
Indicates the number of days to retain the generated backup files.
The value ranges from 0 to 732. If the value is 0, the automated backup policy is not configured or has been disabled.
Table 8 nodes field data structure description Name
Type
Description
id
String
Indicates the node ID.
name
String
Indicates the node name.
role
String
Indicates the node type. The value can be master, slave, or readreplica, indicating the primary node, standby node, and read replica node, respectively.
status
String
Indicates the node status.
availability_zone
String
Indicates the AZ.
Table 9 related_instance field data structure description Name
Type
Description
id
String
Indicates the associated DB instance ID.
type
String
Indicates the associated DB instance type.
- replica_of: indicates the primary DB instance.
- replica: indicates read replicas.
The values of region and availability_zone are used as examples.
- Example normal response
Query DB instances based on search criteria.
{ "instances": [{ "id": "ed7cc6166ec24360a5ed5c5c9c2ed726in01", "status": "ACTIVE", "name": "mysql-0820-022709-01", "port": 3306, "type": "Single", "region": "aaa", "datastore": { "type": "MySQL", "version": "5.7" }, "created": "2018-08-20T02:33:49+0800", "updated": "2018-08-20T02:33:50+0800", "volume": { "type": "ULTRAHIGH", "size": 100 }, "nodes": [{ "id": "06f1c2ad57604ae89e153e4d27f4e4b8no01", "name": "mysql-0820-022709-01_node0", "role": "master", "status": "ACTIVE", "availability_zone": "bbb" }], "alias": "description", "private_ips": ["192.168.0.142"], "public_ips": ["10.154.219.187", "10.154.219.186"], "db_user_name": "root", "vpc_id": "b21630c1-e7d3-450d-907d-39ef5f445ae7", "subnet_id": "45557a98-9e17-4600-8aec-999150bc4eef", "security_group_id": "38815c5c-482b-450a-80b6-0a301f2afd97", "flavor_ref": "rds.mysql.s1.large", "switch_strategy": "", "backup_strategy": { "start_time": "19:00-20:00", "keep_days": 7 }, "maintenance_window": "02:00-06:00", "related_instance": [], "time_zone": "" }], "total_count": 1 }
- Query all DB instances.
{ "instances": [{ "id": "ed7cc6166ec24360a5ed5c5c9c2ed726in01", "status": "ACTIVE", "name": "mysql-0820-022709-01", "port": 3306, "type": "Single", "region": "aaa", "datastore": { "type": "MySQL", "version": "5.7" }, "created": "2018-08-20T02:33:49+0800", "updated": "2018-08-20T02:33:50+0800", "volume": { "type": "ULTRAHIGH", "size": 100 }, "nodes": [{ "id": "06f1c2ad57604ae89e153e4d27f4e4b8no01", "name": "mysql-0820-022709-01_node0", "role": "master", "status": "ACTIVE", "availability_zone": "bbb" }], "alias": "description", "private_ips": ["192.168.0.142"], "public_ips": ["10.154.219.187", "10.154.219.186"], "db_user_name": "root", "vpc_id": "b21630c1-e7d3-450d-907d-39ef5f445ae7", "subnet_id": "45557a98-9e17-4600-8aec-999150bc4eef", "security_group_id": "38815c5c-482b-450a-80b6-0a301f2afd97", "flavor_ref": "rds.mysql.s1.large", "switch_strategy": "", "backup_strategy": { "start_time": "19:00-20:00", "keep_days": 7 }, "maintenance_window": "02:00-06:00", "related_instance": [], "disk_encryption_id": "", "time_zone": "" }, { "id": "ed7cc6166ec24360a5ed5c5c9c2ed726in02", "status": "ACTIVE", "name": "mysql-0820-022709-02", "port": 3306, "type": "Single", "region": "aaa", "datastore": { "type": "MySQL", "version": "5.7" }, "created": "2018-08-20T02:33:49+0800", "updated": "2018-08-20T02:33:50+0800", "volume": { "type": "ULTRAHIGH", "size": 100 }, "nodes": [{ "id": "06f1c2ad57604ae89e153e4d27f4e4b8no01", "name": "mysql-0820-022709-01_node0", "role": "master", "status": "ACTIVE", "availability_zone": "bbb" }], "alias": "description", "private_ips": ["192.168.0.142"], "public_ips": ["10.154.219.187", "10.154.219.186"], "db_user_name": "root", "vpc_id": "b21630c1-e7d3-450d-907d-39ef5f445ae7", "subnet_id": "45557a98-9e17-4600-8aec-999150bc4eef", "security_group_id": "38815c5c-482b-450a-80b6-0a301f2afd97", "flavor_ref": "rds.mysql.s1.large", "cpu": "2", "mem": "4", "switch_strategy": "", "backup_strategy": { "start_time": "19:00-20:00", "keep_days": 7 }, "maintenance_window": "02:00-06:00", "related_instance": [], "time_zone": "" }], "total_count": 2 }
- Abnormal response
For details, see Abnormal Request Results.
Status Code
- Normal
- Abnormal
For details, see Status Codes.
Error Code
For details, see Error Codes.
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