You can call this operation to upgrade the database version of an ApsaraDB for MongoDB instance.

The instance must be in the running state when you call this operation.

  • The available database versions are subject to the storage engine used by the instance. For more information, see MongoDB versions and storage engines. You can also call the DescribeAvailableEngineVersion operation to query the available database versions.
  • The database version cannot be downgraded after it is upgraded.
  • The instance is automatically restarted for two to three times during the upgrade process. Make sure that you upgrade the instance during off-peak hours.


OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer. OpenAPI Explorer dynamically generates the sample code of the operation for different SDKs.

Request parameters

Parameter Type Required Example Description
Action String Yes UpgradeDBInstanceEngineVersion

The operation that you want to perform. Set the value to UpgradeDBInstanceEngineVersion.

EngineVersion String Yes 4.0

The new database engine version of the instance. Valid values: 3.4, 4.0, and 4.2.

Note The database version must be later than the current database version of the instance.
DBInstanceId String Yes dds-bpxxxxxxxx

The ID of the instance.

RegionId String No cn-hangzhou

The region ID of the instance. You can call the DescribeRegions operation to query the region ID of the instance.

Response parameters

Parameter Type Example Description
RequestId String C4907B00-A208-4E0C-A636-AA85140E406C

The ID of the request.


Sample requests

http(s):// Action=UpgradeDBInstanceEngineVersion
&<Common request parameters>

Sample success responses

XML fomat


JSON format

    "RequestId": "C4907B00-A208-4E0C-A636-AA85140E406C"

Error codes

For a list of error codes, visit the API Error Center.