Querying the Kernel Version

Function

This API is used to query the kernel version of a DB instance. Before calling this API:

Learn how to authorize and authenticate it.
Obtain the required region and endpoint.

URI

GET /v3/{project_id}/instances/{instance_id}/database-version

**Table 1** URI parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Project ID of a tenant in a region. To obtain this value, see Obtaining a Project ID.
instance_id	Yes	String	Instance ID, which is compliant with the UUID format.

Request Parameters

**Table 2** Request header parameters
Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	User token. If the following response body is returned for calling the API used to obtain a user token, the request is successful. After the request is processed, the value of X-Subject-Token in the message header is the token value.
X-Language	No	String	Request language type. The default value is en-us. Value: en-us zh-cn

Response Parameters

Status code: 200

**Table 3** Response body parameters
Parameter	Type	Description
datastore	InstanceDatabaseVersionInfo object	DB version information.
upgrade_flag	Boolean	Whether the version can be upgraded. true: The version can be upgraded. false: The instance cannot be upgraded.

**Table 4** InstanceDatabaseVersionInfo
Parameter	Type	Description
current_version	String	Current database version.
current_kernel_version	String	Current database kernel version.
latest_version	String	Latest database version.
latest_kernel_version	String	Latest kernel version.

Status code: 400

**Table 5** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error message.

Status code: 500

**Table 6** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error message.

Example Request

Querying the kernel version of a DB instance

GET https://{endpoint}/v3/97b026aa9cc4417888c14c84a1ad9860/instances/61a4ea66210545909d74a05c27a7179ein07/database-version

Example Response

Status code: 200

Success.

{
  "datastore" : {
    "current_version" : "8.0.22",
    "current_kernel_version" : "2.0.28.15",
    "latest_version" : "8.0.22",
    "latest_kernel_version" : "2.0.42.230600"
  },
  "upgrade_flag" : true
}