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Amazon CloudWatch
Command Line Reference (API Version 2010-08-01)

mon-describe-alarms-for-metric

Description

Gets information about the alarms associated with the specified metric.

Syntax

mon-describe-alarms-for-metric --metric-name value --namespace value [--dimensions "key1=value1,key2=value2..."] [--period value] [--statistic value] [--extendedstatistic value] [--unit value] [Common Options]

Options

NameDescription

--dimensions - "key1=value1,key2=value2...

The dimensions associated with the metric. You can specify dimensions two ways and the formats can be combined or used interchangeably:

  • One option per dimension: --dimensions "key1=value1" --dimensions "key2=value2"

  • All in one option: --dimensions "key1=value1,key2=value2"

Type: Map

Valid values: A string of the format name=value, where the key is the name of the dimension, and the value is the dimension's value. The dimension names, and values must be an ANSI string between 1 and 250 characters long. A maximum of 10 dimensions are allowed.

Default: n/a

Required: No

--metric-name VALUE

The name of the metric whose associated alarms you want to search for.

Type: Argument

Valid values: A valid metric name between 1 and 255 characters in length.

Default: n/a

Required: Yes

--namespace VALUE

The namespace of the metric associated with the alarm. For more information about namespaces, see AWS Namespaces.

Type: String

Valid values: A valid namespace between 1 and 250 characters in length.

Default: n/a

Required: Yes

--period VALUE

The period to filter the alarms by. Only alarms that evaluate metrics at this period will be included in the results. If this isn't specified alarms on any period will be included .

Type: Argument

Valid values: A number, in seconds that is a multiple of 60 seconds.

Default: n/a

Required: No

--statistic VALUE

The statistic to filter alarms by. Only alarms on the specified statistic will be included. If this parameter isn't specified, alarms on any statistic are included.

Type: Enumeration

Valid values: SampleCount, Average, Sum, Minimum or Maximum

Default: n/a

Required: No

--extendedstatistic VALUE

The percentile statistic to filter alarms by. Only alarms on the specified statistic are included. If this parameter isn't specified, alarms on any statistic are included.

Type: String

Valid values: Any percentile, with up to two decimal places (for example, p95.45).

Default: n/a

Required: No

--unit VALUE

The unit to filter the alarms by. Only alarms on the specified statistics will be included. If this isn't specified than alarms on any units will be included. If the alarm doesn't have a unit specified than the only way to search for the alarm is to omit this option.

Type: Enumeration

Valid values: One of the following:

  • Seconds

  • Microseconds

  • Milliseconds

  • Bytes

  • Kilobytes

  • Megabytes

  • Gigabytes

  • Terabytes

  • Bits

  • Kilobits

  • Megabits

  • Gigabits

  • Terabits

  • Percent

  • Count

  • Bytes/Second

  • Kilobytes/Second

  • Megabytes/Second

  • Gigabytes/Second

  • Terabytes/Second

  • Bits/Second

  • Kilobits/Second

  • Megabits/Second

  • Gigabits/Second

  • Terabits/Second

  • Count/Second

  • None

Default: n/a

Required: No

Common Options

NameDescription

--aws-credential-file VALUE

The location of the file with your AWS credentials. You can set this value using the environment variable AWS_CREDENTIAL_FILE. If you define the environment variable or you provide the path to the credential file, the file must exist or the request fails. All CloudWatch requests must be signed using your access key ID and secret access key.

Type: String

Valid values: A valid path to a file containing your access key ID and secret access key.

Default: Uses the environment variable AWS_CREDENTIAL_FILE, if set.

-C, --ec2-cert-file-path VALUE

The location of your EC2 certificate file for signing requests. You can use the environment variable EC2_CERT to specify this value.

Type: String

Valid values: A valid file path to the PEM file provided by Amazon EC2 or AWS Identity and Access Management.

Default: Uses the environment variable EC2_CERT, if set.

--connection-timeout VALUE

The connection timeout value, in seconds.

Type: Integer

Valid values: Any positive number.

Default: 30

--delimiter VALUE

The delimiter to use when displaying delimited (long) results.

Type: String

Valid values: Any string.

Default: Comma (,)

--headers

If you are displaying tabular or delimited results, include the column headers. If you are showing XML results, return the HTTP headers from the service request, if applicable.

Type: Flag

Valid values: When present, shows headers.

Default: The --headers option is off by default.

-I, --access-key-id VALUE

The access key ID that will be used, in conjunction with the secret key, to sign the request. This must be used in conjunction with --secret-key, otherwise the option is ignored. All requests to CloudWatch must be signed, otherwise the request is rejected.

Type: String

Valid values: A valid access key ID.

Default: None

-K, --ec2-private-key-file-path VALUE

The private key that will be used to sign the request. Using public/private keys causes the CLI to use SOAP. The request is signed with a public certificate and private key. This parameter must be used in conjunction with EC2_CERT, otherwise the value is ignored. The value of the environment variable EC2_PRIVATE_KEY will be used if it is set, and this option is not specified. This option is ignored if the environment variable AWS_CREDENTIAL_FILE is set, or --aws-credentials-file is used. All requests to CloudWatch must be signed, otherwise the request is rejected.

Type: String

Valid values: The path to a valid ASN.1 private key.

Default: None

--region VALUE

The region requests are directed to. You can use the environment variable EC2_REGION to specify the value. The region is used to create the URL used to call CloudWatch, and must be a valid Amazon Web Services (AWS) region.

Type: String

Valid values: Any AWS region, for example, us-east-1.

Default: us-east-1, unless the EC2_REGION environment variable is set.

S, --secret-key VALUE

The secret access key that will be used to sign the request, in conjunction with an access key ID. This parameter must be used in conjunction with --access-key-id, otherwise this option is ignored.

Type: String

Valid values: Your access key ID.

Default: None

--show-empty-fields

Shows empty fields using (nil) as a placeholder to indicate that this data was not requested.

Type: Flag

Valid values: None

Default: Empty fields are not shown by default.

--show-request

Displays the URL the CLI uses to call AWS.

Type: Flag

Valid values: None

Default: false

--show-table, --show-long, --show-xml, --quiet

Specifies how the results are displayed: in a table, delimited (long), XML, or no output (quiet). The --show-table display shows a subset of the data in fixed column-width form; --show-long shows all of the returned values delimited by a character; --show-xml is the raw return from the service; and --quiet suppresses all standard output. All options are mutually exclusive, with the priority --show-table, --show-long, --show-xml, and --quiet.

Type: Flag

Valid values: None

Default: --show-table

-U, --url VALUE

The URL used to contact CloudWatch. You can set this value using the environment variable AWS_CLOUDWATCH_URL. This value is used in conjunction with --region to create the expected URL. This option overrides the URL for the service call.

Type: String

Valid values: A valid HTTP or HTTPS URL.

Default: Uses the value specified in AWS_CLOUDWATCH_URL, if set.

Output

This command returns a table that contains the following:

  • ALARM - Alarm name.

  • DESCRIPTION - The alarm description. This column appears only in the --show-long view.

  • STATE - The alarm state.

  • STATE_REASON - A human-readable reason for state. This column appears only in the --show-long view.

  • STATE_REASON_DATA - A machine-readable reason for state (JSON format). This column appears only in the --show-long view.

  • ENABLED - Enables or disables actions. This column appears only in the --show-long view.

  • OK_ACTIONS - The action to execute on OK status. This column appears only in the --show-long view.

  • ALARM_ACTIONS - The action to execute on ALARM status.

  • INSUFFICIENT_DATA_ACTIONS - The action to execute on INSUFFICIENT_DATA status. This column appears only in the --show-long view.

  • NAMESPACE - A namespace for the metric.

  • METRIC_NAME - The name of the metric.

  • DIMENSIONS - The metric dimensions. This column appears only in the --show-long view.

  • PERIOD - The period.

  • STATISTIC - The statistic (Average, Minimum, Maximum, Sum, SampleCount).

  • EXTENDEDSTATISTIC - The percentile statistic.

  • UNIT - The unit. This column appears only in the --show-long view.

  • EVAL_PERIODS - The number of periods to evaluate the metric.

  • COMPARISON - The comparison operator.

  • THRESHOLD - The threshold.

The Amazon CloudWatch CLI displays errors on stderr.

Examples

Example Request

This example describes an alarm for a given metric.

mon-describe-alarms-for-metric--metric-name CPUUtilization --namespace AWS/EC2  --dimensions InstanceId=i-abcdef 

This is an example output of this command.

ALARM    STATE ALARM_ACTIONS  NAMESPACE  METRIC_NAME    PERIOD  STATISTIC  EVAL_PERIODS  COMPARISON            THRESHOLD
my-alarm1  OK    arn:aws:sns:.. AWS/EC2    CPUUtilization 60      Average    3             GreaterThanThreshold  100.0
my-alarm2  OK    arn:aws:sns:.. AWS/EC2    CPUUtilization 60      Average    5             GreaterThanThreshold  80.0