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User Guide

First time using the AWS CLI? See the User Guide for help getting started.

[ aws . cloudwatch ]



Temporarily sets the state of an alarm for testing purposes. When the updated state differs from the previous value, the action configured for the appropriate state is invoked. For example, if your alarm is configured to send an Amazon SNS message when an alarm is triggered, temporarily changing the alarm state to ALARM sends an SNS message. The alarm returns to its actual state (often within seconds). Because the alarm state change happens quickly, it is typically only visible in the alarm's History tab in the Amazon CloudWatch console or through DescribeAlarmHistory .

See also: AWS API Documentation

See 'aws help' for descriptions of global parameters.


--alarm-name <value>
--state-value <value>
--state-reason <value>
[--state-reason-data <value>]
[--cli-input-json <value>]
[--generate-cli-skeleton <value>]


--alarm-name (string)

The name for the alarm. This name must be unique within the AWS account. The maximum length is 255 characters.

--state-value (string)

The value of the state.

Possible values:

  • OK

--state-reason (string)

The reason that this alarm is set to this specific state, in text format.

--state-reason-data (string)

The reason that this alarm is set to this specific state, in JSON format.

--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 temporarily change the state of an alarm

The following example uses the set-alarm-state command to temporarily change the state of an Amazon CloudWatch alarm named "myalarm" and set it to the ALARM state for testing purposes:

aws cloudwatch set-alarm-state --alarm-name "myalarm" --state-value ALARM --state-reason "testing purposes"

This command returns to the prompt if successful.