Obtaining the Parameters of a Specified DB Instance

Function

This API is used to obtain parameters of a specified DB instance. Before calling this API:

Learn how to authenticate this API.
Obtain the required region and endpoint.

URI

GET https://{Endpoint}/v3.1/{project_id}/instances/{instance_id}/configurations

**Table 1** Parameter description
Parameter	Mandatory	Type	Description
project_id	Yes	String	Explanation: Project ID of a tenant in a region. For details about how to obtain the project ID, see Obtaining a Project ID. Restrictions: None Value range: The value can contain 32 characters. Only letters and digits are allowed. Default value: None
instance_id	Yes	String	Instance ID.

Request Parameters

**Table 2** 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. After the request is processed, the value of X-Subject-Token in the message header is the token value.
X-Language	No	String	Language. Default value: en-us Values: zh-cn en-us

Response Parameters

**Table 3** Parameter description
Parameter	Type	Description
datastore_version	String	Engine version.
datastore_name	String	Engine name.
created	String	Creation time in the "yyyy-MM-dd HH:mm:ss" format.
updated	String	Update time in the "yyyy-MM-ddHH:mm:ss" format.
configuration_parameters	Array of objects	Parameters defined by users based on the default parameter templates. For details, see Table 4.

**Table 4** configuration_parameters field data structure description
Parameter	Type	Description
name	String	Parameter name.
value	String	Parameter value.
restart_required	Boolean	Whether a reboot is required after the parameter is modified.
value_range	String	Parameter value range.
type	String	Parameter type. The value can be string, integer, boolean, list, or float. Value: string integer boolean list float
description	String	Parameter description.

Example Request

Obtaining parameters of a specified DB instance

GET https://gaussdb-opengauss.ap-southeast-1.myhuaweicloud.com/v3.1/0483b6b16e954cb88930a360d2c4e663/instances/dsfae23fsfdsae3435in14/configurations

Example Response

Parameters of the instance queried.

{
    "created": "2022-04-11 10:46:59",
    "updated": "2022-04-11 10:46:59",
    "datastore_version": "2.0",
    "datastore_name": "GaussDB",
    "configuration_parameters": [
        {
            "name": "audit_system_object",
            "value": "12295",
            "type": "integer",
            "description": "Determines whether to audit the CREATE, DROP, and ALTER operations on GaussDB Kernel database objects. GaussDB Kernel database objects include databases, users, schemas, and tables. You can change the parameter value to audit only the operations on required database objects. During a forcible primary/standby failover, set audit_system_object to the maximum value and audit all DDL objects. If the parameter value is incorrectly changed, DDL audit logs will be lost. Contact customer service personnel to change it.",
            "restart_required": false,
            "value_range": "0-2097151"
        }
    ]
}