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AnalyticDB:DescribeKernelVersion

Last Updated:Aug 28, 2026

Queries the minor version information of an AnalyticDB for MySQL cluster.

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RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

  • Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.

  • API: The API that you can call to perform the action.

  • Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.

  • Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.

    • For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.

    • For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.

  • Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.

  • Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

adb:DescribeKernelVersion

list

*DBClusterLakeVersion

acs:adb:{#regionId}:{#accountId}:dbcluster/{#DBClusterId}

None None

Request parameters

Parameter

Type

Required

Description

Example

DBClusterId

string

Yes

The cluster ID.

Note
  • You can call the DescribeDBClusters operation to query all AnalyticDB for MySQL clusters within a region, including cluster IDs.

amv-2ze918p6qf6h9****

RegionId

string

No

The region ID.

Note

You can call the DescribeRegions operation to query the most recent region list.

cn-shenzhen

Response elements

Element

Type

Description

Example

object

RequestId

string

The request ID.

1AD222E9-E606-4A42-BF6D-8A4442913CEF

KernelVersion

string

The minor version of the cluster. Example: 3.1.8.

3.1.8

ExpireDate

string

The maintenance expiration time of the version, in the yyyy-MM-ddTHH:mm:ssZ format (ISO 8601, UTC). After this time, the version is no longer maintained. Update the minor version of the cluster to a later version if any issues occur.

2025-01-12T16:00:00Z

AvailableKernelVersions

array<object>

The minor versions available for updating the current cluster version.

object

The minor versions available for updating the current cluster version.

KernelVersion

string

The minor version. Example: 3.1.9.

3.1.9

ReleaseDate

string

The release time of the minor version, in the yyyy-MM-ddTHH:mm:ssZ format (ISO 8601, UTC).

2024-07-17T16:00:00Z

ExpireDate

string

The maintenance expiration time of the version, in the yyyy-MM-ddTHH:mm:ssZ format (ISO 8601, UTC). After this time, the version is no longer maintained. Update the minor version of the cluster to a later version if any issues occur.

2025-07-17T16:00:00Z

Examples

Success response

JSON format

{
  "RequestId": "1AD222E9-E606-4A42-BF6D-8A4442913CEF",
  "KernelVersion": "3.1.8",
  "ExpireDate": "2025-01-12T16:00:00Z",
  "AvailableKernelVersions": [
    {
      "KernelVersion": "3.1.9",
      "ReleaseDate": "2024-07-17T16:00:00Z\n",
      "ExpireDate": "2025-07-17T16:00:00Z"
    }
  ]
}

Error codes

HTTP status code

Error code

Error message

Description

404 InvalidDBCluster.NotFound The DBClusterId provided does not exist in our records. The specified DBClusterId parameter does not exist. Make sure that the DBClusterId value is valid.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.