Request Syntax Request Parameters Response Elements Errors Examples See Also

CancelCommand

Attempts to cancel the command specified by the Command ID. There is no guarantee that the command will be terminated and the underlying process stopped.

Request Syntax


{
   "CommandId": "string",
   "InstanceIds": [ "string" ]
}

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.

The request accepts the following data in JSON format.

CommandId

The ID of the command you want to cancel.

Type: String

Length Constraints: Fixed length of 36.

Required: Yes

InstanceIds

(Optional) A list of managed node IDs on which you want to cancel the command. If not provided, the command is canceled on every node on which it was requested.

Type: Array of strings

Array Members: Minimum number of 0 items. Maximum number of 50 items.

Pattern: (^i-(\w{8}|\w{17})$)|(^mi-\w{17}$)

Required: No

Response Elements

If the action is successful, the service sends back an HTTP 200 response with an empty HTTP body.

Errors

For information about the errors that are common to all actions, see Common Errors.

DuplicateInstanceId

You can't specify a managed node ID in more than one association.

HTTP Status Code: 400

InternalServerError

An error occurred on the server side.

HTTP Status Code: 500

InvalidCommandId

The specified command ID isn't valid. Verify the ID and try again.

HTTP Status Code: 400

InvalidInstanceId

The following problems can cause this exception:

You don't have permission to access the managed node.
AWS Systems Manager Agent (SSM Agent) isn't running. Verify that SSM Agent is running.
SSM Agent isn't registered with the SSM endpoint. Try reinstalling SSM Agent.
The managed node isn't in a valid state. Valid states are: Running, Pending, Stopped, and Stopping. Invalid states are: Shutting-down and Terminated.

HTTP Status Code: 400

Examples

Example

This example illustrates one usage of CancelCommand.

Sample Request


POST / HTTP/1.1
Host: ssm.us-east-2.amazonaws.com
Accept-Encoding: identity
X-Amz-Target: AmazonSSM.CancelCommand
Content-Type: application/x-amz-json-1.1
User-Agent: aws-cli/2.0.0 Python/3.7.5 Windows/10 botocore/2.0.0dev4
X-Amz-Date: 20240220T233525Z
Authorization: AWS4-HMAC-SHA256 Credential=AKIAIOSFODNN7EXAMPLE/20240220/us-east-2/ssm/aws4_request,
SignedHeaders=content-type;host;x-amz-date;x-amz-target, Signature=39c3b3042cd2aEXAMPLE
Content-Length: 53

{
    "CommandId": "25173b39-c88d-4459-ba3d-8704aEXAMPLE"
}

Sample Response

{}