All Products
Search
Document Center

Elastic Compute Service:StartInstances

Last Updated:Mar 19, 2024

Starts Elastic Compute Service (ECS) instances that are in the Stopped state.

Operation description

Specifies whether to perform a dry run. Valid values:

  • true: performs only a dry run. The system checks the request for potential issues, including required parameters, request syntax, and instance status. If the request fails the dry run, an error message is returned. If the request passes the dry run, DRYRUN.SUCCESS is returned.
Note If you set BatchOptimization to SuccessFirst and DryRun to true, only DRYRUN.SUCCESS is returned regardless of whether the request passes the dry run.
  • false: performs a dry run and performs the actual request. If the request passes the dry run, the operation is performed.

Default value: false.

Debugging

OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer.

Authorization information

There is currently no authorization information disclosed in the API.

Request parameters

ParameterTypeRequiredDescriptionExample
DryRunbooleanNo

The region ID of the ECS instance. You can call the DescribeRegions operation to query the most recent region list.

false
RegionIdstringYes

The batch operation mode. Valid values:

  • AllTogether: starts all ECS instances at the same time. If all ECS instances are started, a success message is returned. If an ECS instance fails to be started, all the specified instances fail to be started and an error message is returned.
  • SuccessFirst: separately starts each ECS instance. The response contains the operation results of each ECS instance.

Default value: AllTogether.

cn-hangzhou
BatchOptimizationstringNo

The IDs of the ECS instances. You can specify up to 100 ECS instance IDs.

AllTogether
InstanceIdarrayYes

The ID of instance N. Valid values of N: 1 to 100.

stringYes

The ID of the request.

i-bp67acfmxazb4p****

Response parameters

ParameterTypeDescriptionExample
object
RequestIdstring

The information about the ECS instance, such as the status of each instance before and after the operation is called and the operation results.

473469C7-AA6F-4DC5-B3DB-A3DC0DE3****
InstanceResponsesobject []

The error code that is returned for the operation on the ECS instance. The value 200 indicates that the operation is successful. For more information, see the "Error codes" section in this topic.

Codestring

The error message that is returned for the operation on the ECS instance. The value success indicates that the operation is successful. For more information, see the "Error codes" section in this topic.

200
Messagestring

The ID of the ECS instance.

success
InstanceIdstring

The status of the ECS instance after the operation is called.

i-bp67acfmxazb4p****
CurrentStatusstring

The status of the ECS instance before the operation is called.

Starting

Examples

Sample success responses

JSONformat

{
  "RequestId": "473469C7-AA6F-4DC5-B3DB-A3DC0DE3****",
  "InstanceResponses": {
    "InstanceResponse": [
      {
        "Code": "200",
        "Message": "success",
        "InstanceId": "i-bp67acfmxazb4p****",
        "CurrentStatus": "Starting",
        "PreviousStatus": "Stopped"
      }
    ]
  }
}

Error codes

HTTP status codeError codeError messageDescription
400InvalidParameter.KMSKeyId.CMKNotEnabledThe CMK needs to be added ECS tag-
400InvalidParameter.KMSKeyId.CMKNotEnabledThe CMK needs to be enabled.The customer master key (CMK) is not enabled when KMSKeyId is specified for an encrypted disk. You can call the DescribeKey operation of KMS to query information about the specified CMK.
400InvalidParameter.KMSKeyId.KMSUnauthorizedECS service account have no right to access your KMS.-
400DRYRUN.SUCCESSThis request is a dryrun request with successful result.The request is checked and determined as valid.
400Invalid.PrivatePoolOptions.NoStockThe PrivatePool has been used up.-
403InvalidInstanceId.NotFoundInstanceId should not be null.-
403InvalidParameter.TooManyInstanceIdsInstance ids cannot be more than 100.-
403Abs.InvalidInstanceIds.MalFormedThe specified instanceIds is not valid.-
403InstanceExpired%s-
403InstanceLockedForSecurity%s-
403InstanceExpiredOrInArrears%s-
403IncorrectInstanceStatus%sThe instance is in a state that does not support the current operation.
403InvalidInstance.NotFoundSystemDisk%s-
403OperationDenied.NoStockThe requested resource is sold out in the specified zone; try other types of resources or other regions and zones.The requested resources are insufficient.
403OperationDenied.SpotPriceLowerThanPublicPriceThe spot instance price is lower than public price.Your user-defined maximum hourly price of a preemptible instance is lower than the current market price.
403OperationDenied.SpotPriceLowerThanPublicPrice%s-
403InsufficientBalanceYour account does not have enough balance.Your account balance is insufficient. Add funds to your account and try again.
403InstanceNotReadyThe specified instance is not ready for use.The resource is in a state that does not support the current operation. Try again later and check whether the instance state supports the operation.
403OperationDenied.HostRepairing%s-
404InvalidInstanceId.NotFound%sThe specified instance does not exist. Check whether the InstanceId parameter is valid.
404InvalidInstanceIds.NotFoundThe specified InstanceIds does not exist.The specified InstanceId parameter does not exist. You can call the DescribeInstances operation to query the state of the instance.
404InvalidInstanceId.NotFoundThe specified InstanceId does not exist.The specified instance does not exist.
409InvalidOperation.ConflictRequest was denied due to conflict with a previous request, please try again later.-
500InternalErrorThe request processing has failed due to some unknown error.An internal error has occurred. Try again later.

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