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ApsaraDB for ClickHouse:DescribeSynDbs

Last Updated:Sep 28, 2025

Queries information about synchronized databases.

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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

clickhouse:DescribeSynDbs

get

*DBCluster

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

None None

Request parameters

Parameter

Type

Required

Description

Example

DbClusterId

string

Yes

The ID of the ApsaraDB for ClickHouse cluster.

cc-bp1ab22b80814****

PageSize

integer

No

The number of records to return on each page.

20

PageNumber

integer

No

The current page number.

1

Response elements

Element

Type

Description

Example

object

RequestId

string

The request ID.

7655F5F9-1313-5ABA-8516-F6EB79605A5F

SynDbs

array<object>

The synchronized data.

object

The objects synchronized to ClickHouse.

RdsId

string

The instance ID of the ApsaraDB RDS for MySQL instance.

rm-wz9d11qg1j0h4****

SynDb

string

The database in the ApsaraDB RDS for MySQL instance.

database

SynStatus

boolean

Indicates whether the synchronization was successful. Valid values:

  • true: The synchronization was successful.

  • false: The synchronization failed.

true

ErrorMsg

string

  • This parameter is not returned if SynStatus is true.

  • If SynStatus is false, this parameter indicates the reason for the synchronization failure.

ClickHouse exception, code: 49, host: 100.100.118.132, port: 49670; Code: 49, e.displayText() = DB::Exception: Logical error: there is no global context (version 20.8.17.25)n

RdsUserName

string

The database account for the ApsaraDB RDS for MySQL instance.

test

RdsVpcUrl

string

The internal endpoint of the ApsaraDB RDS for MySQL instance.

rm-bp16t9h3999xb0a711****.mysql.rds.aliyuncs.com:3306

TotalCount

integer

The total number of records.

0

PageSize

integer

The number of records on each page.

20

PageNumber

integer

The current page number.

1

Examples

Success response

JSON format

{
  "RequestId": "7655F5F9-1313-5ABA-8516-F6EB79605A5F",
  "SynDbs": [
    {
      "RdsId": "rm-wz9d11qg1j0h4****",
      "SynDb": "database",
      "SynStatus": true,
      "ErrorMsg": "ClickHouse exception, code: 49, host: 100.100.118.132, port: 49670; Code: 49, e.displayText() = DB::Exception: Logical error: there is no global context (version 20.8.17.25)n",
      "RdsUserName": "test",
      "RdsVpcUrl": "rm-bp16t9h3999xb0a711****.mysql.rds.aliyuncs.com:3306"
    }
  ],
  "TotalCount": 0,
  "PageSize": 20,
  "PageNumber": 1
}

Error codes

HTTP status code

Error code

Error message

Description

404 InvalidDBCluster.NotFound The DBClusterId provided does not exist in our records. The DBClusterId provided does not exist in our records.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.