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MaxCompute:GetMmsFetchMetadataJob

Last Updated:Aug 05, 2025

Retrieves the details of a MaxCompute Migration Assist (MMA) job that fetches metadata.

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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 support 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

odps:GetMmsFetchMetadataJob

get

*Project

acs:odps:{#regionId}:{#accountId}:mmsdatasource/{#sourceId}

None None

Request syntax

GET /api/v1/mms/datasources/{sourceId}/scans/{scanId} HTTP/1.1

Request parameters

Parameter

Type

Required

Description

Example

sourceId

integer

Yes

The data source ID.

2000015

scanId

integer

Yes

The ID of the asynchronous task for metadata synchronization.

1000002

Response parameters

Parameter

Type

Description

Example

object

ApiRes

requestId

string

The request ID.

5CA6292A-E301-5CD8-B4E2-AF060F99147B

data

object

The returned data.

id

integer

The ID of the asynchronous task.

1000002

sourceId

integer

The data source ID.

2000015

status

string

The status of the asynchronous task for metadata synchronization.

SCAN_DOING

progress

number

The progress of metadata synchronization. Valid values: 1 to 10000.

5000

result

string

The result of metadata synchronization.

{"databases":5,"tables":75,"partitions":215}

errorMsg

string

The error message.

unexpected exception

startTime

string

The time when metadata synchronization started.

2024-12-16 19:09:37

endTime

string

The time when metadata synchronization ended.

2024-12-16 19:10:07

Examples

Success response

JSON format

{
  "requestId": "5CA6292A-E301-5CD8-B4E2-AF060F99147B",
  "data": {
    "id": 1000002,
    "sourceId": 2000015,
    "status": "SCAN_DOING",
    "progress": 5000,
    "result": "{\"databases\":5,\"tables\":75,\"partitions\":215}",
    "errorMsg": "unexpected exception",
    "startTime": "2024-12-16 19:09:37",
    "endTime": "2024-12-16 19:10:07"
  }
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.