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ENS:EventMigrateInstance

Last Updated:Oct 29, 2025

Migrates the instance across nodes after an O\\\&M event occurs on an instance.

Operation description

  • This O&M operation is supported only by the Instance:SystemUpgrade.Migrate event.

Debugging

You can run this interface directly in OpenAPI Explorer, saving you the trouble of calculating signatures. After running successfully, OpenAPI Explorer can automatically generate SDK code samples.

Authorization information

The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

  • Operation: the value that you can use in the Action element to specify the operation on a resource.
  • Access level: the access level of each operation. The levels are read, write, and list.
  • Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
    • For mandatory resource types, indicate with a prefix of * .
    • If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
  • Condition Key: the condition key that is defined by the cloud service.
  • Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.
OperationAccess levelResource typeCondition keyAssociated operation
ens:EventMigrateInstancenone
*All Resources
*
    none
none

Request parameters

ParameterTypeRequiredDescriptionExample
EventIdstringYes

The ID of the system event.

e-d71ff150945b9c02eb6ebc0016328468
ResourceIdstringYes

The ID of the resource.

i-55qi8m11rr53c4i964md8a00l
OpsTypestringYes

The type of the O&M task. Valid values:

  • immediate
  • scheduled
immediate
PlanTimelongNo

The execution time of the reservation. The timestamp is measured in milliseconds. If the OpsType parameter is set to scheduled, this parameter is required.

1742452232000
DataPolicystringNo

The data migration policy. Valid values:

  • abandon: does not migrate data. This is the default value.
  • force_transfer: forcibly migrates data.
  • try_transfer: Migrate data as much as possible.
abandon
PasswordstringNo

The password of the instance. This parameter is optional. If you do not specify this parameter, a random password is used.

The password must be 8 to 30 characters in length. The password must contain uppercase letters, lowercase letters, digits, and special characters.

Note that you cannot enter a password for scheduled execution.

AAaa1234

Response parameters

ParameterTypeDescriptionExample
object

The data returned.

RequestIdstring

The request ID.

125B04C7-3D0D-4245-AF96-14E3758E3F06

Examples

Sample success responses

JSONformat

{
  "RequestId": "125B04C7-3D0D-4245-AF96-14E3758E3F06"
}

Error codes

HTTP status codeError codeError message
400NoPermissionPermission denied.
400InvalidParameter.%sThe specified field %s invalid. Please check it again.

For a list of error codes, visit the Service error codes.