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[ aws . ec2 ]



Enables detailed monitoring for a running instance. Otherwise, basic monitoring is enabled. For more information, see Monitor your instances using CloudWatch in the Amazon EC2 User Guide .

To disable detailed monitoring, see UnmonitorInstances .

See also: AWS API Documentation

See 'aws help' for descriptions of global parameters.


--instance-ids <value>
[--dry-run | --no-dry-run]
[--cli-input-json <value>]
[--generate-cli-skeleton <value>]


--instance-ids (list)

The IDs of the instances.



"string" "string" ...

--dry-run | --no-dry-run (boolean)

Checks whether you have the required permissions for the action, without actually making the request, and provides an error response. If you have the required permissions, the error response is DryRunOperation . Otherwise, it is UnauthorizedOperation .

--cli-input-json (string) Performs service operation based on the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, the CLI values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally.

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

See 'aws help' for descriptions of global parameters.


To enable detailed monitoring for an instance

This example command enables detailed monitoring for the specified instance.


aws ec2 monitor-instances --instance-ids i-1234567890abcdef0


  "InstanceMonitorings": [
          "InstanceId": "i-1234567890abcdef0",
          "Monitoring": {
              "State": "pending"


InstanceMonitorings -> (list)

The monitoring information.


Describes the monitoring of an instance.

InstanceId -> (string)

The ID of the instance.

Monitoring -> (structure)

The monitoring for the instance.

State -> (string)

Indicates whether detailed monitoring is enabled. Otherwise, basic monitoring is enabled.