AWS CLI Command Reference

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[ aws . logs ]

put-metric-filter

Description

Creates or updates a metric filter and associates it with the specified log group. With metric filters, you can configure rules to extract metric data from log events ingested through PutLogEvents .

The maximum number of metric filters that can be associated with a log group is 100.

Using regular expressions to create metric filters is supported. For these filters, there is a quota of two regular expression patterns within a single filter pattern. There is also a quota of five regular expression patterns per log group. For more information about using regular expressions in metric filters, see Filter pattern syntax for metric filters, subscription filters, filter log events, and Live Tail .

When you create a metric filter, you can also optionally assign a unit and dimensions to the metric that is created.

Warning

Metrics extracted from log events are charged as custom metrics. To prevent unexpected high charges, do not specify high-cardinality fields such as IPAddress or requestID as dimensions. Each different value found for a dimension is treated as a separate metric and accrues charges as a separate custom metric.

CloudWatch Logs might disable a metric filter if it generates 1,000 different name/value pairs for your specified dimensions within one hour.

You can also set up a billing alarm to alert you if your charges are higher than expected. For more information, see Creating a Billing Alarm to Monitor Your Estimated Amazon Web Services Charges .

See also: AWS API Documentation

Synopsis

  put-metric-filter
--log-group-name <value>
--filter-name <value>
--filter-pattern <value>
--metric-transformations <value>
[--apply-on-transformed-logs | --no-apply-on-transformed-logs]
[--cli-input-json <value>]
[--generate-cli-skeleton <value>]
[--debug]
[--endpoint-url <value>]
[--no-verify-ssl]
[--no-paginate]
[--output <value>]
[--query <value>]
[--profile <value>]
[--region <value>]
[--version <value>]
[--color <value>]
[--no-sign-request]
[--ca-bundle <value>]
[--cli-read-timeout <value>]
[--cli-connect-timeout <value>]

Options

--log-group-name (string)

The name of the log group.

--filter-name (string)

A name for the metric filter.

--filter-pattern (string)

A filter pattern for extracting metric data out of ingested log events.

--metric-transformations (list)

A collection of information that defines how metric data gets emitted.

(structure)

Indicates how to transform ingested log events to metric data in a CloudWatch metric.

metricName -> (string)

The name of the CloudWatch metric.

metricNamespace -> (string)

A custom namespace to contain your metric in CloudWatch. Use namespaces to group together metrics that are similar. For more information, see Namespaces .

metricValue -> (string)

The value to publish to the CloudWatch metric when a filter pattern matches a log event.

defaultValue -> (double)

(Optional) The value to emit when a filter pattern does not match a log event. This value can be null.

dimensions -> (map)

The fields to use as dimensions for the metric. One metric filter can include as many as three dimensions.

Warning

Metrics extracted from log events are charged as custom metrics. To prevent unexpected high charges, do not specify high-cardinality fields such as IPAddress or requestID as dimensions. Each different value found for a dimension is treated as a separate metric and accrues charges as a separate custom metric.

CloudWatch Logs disables a metric filter if it generates 1000 different name/value pairs for your specified dimensions within a certain amount of time. This helps to prevent accidental high charges.

You can also set up a billing alarm to alert you if your charges are higher than expected. For more information, see Creating a Billing Alarm to Monitor Your Estimated Amazon Web Services Charges .

key -> (string)

value -> (string)

unit -> (string)

The unit to assign to the metric. If you omit this, the unit is set as None .

Shorthand Syntax:

metricName=string,metricNamespace=string,metricValue=string,defaultValue=double,dimensions={KeyName1=string,KeyName2=string},unit=string ...

JSON Syntax:

[
  {
    "metricName": "string",
    "metricNamespace": "string",
    "metricValue": "string",
    "defaultValue": double,
    "dimensions": {"string": "string"
      ...},
    "unit": "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"
  }
  ...
]

--apply-on-transformed-logs | --no-apply-on-transformed-logs (boolean)

This parameter is valid only for log groups that have an active log transformer. For more information about log transformers, see PutTransformer .

If the log group uses either a log-group level or account-level transformer, and you specify true , the metric filter will be applied on the transformed version of the log events instead of the original ingested log events.

--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.

Global Options

--debug (boolean)

Turn on debug logging.

--endpoint-url (string)

Override command's default URL with the given URL.

--no-verify-ssl (boolean)

By default, the AWS CLI uses SSL when communicating with AWS services. For each SSL connection, the AWS CLI will verify SSL certificates. This option overrides the default behavior of verifying SSL certificates.

--no-paginate (boolean)

Disable automatic pagination. If automatic pagination is disabled, the AWS CLI will only make one call, for the first page of results.

--output (string)

The formatting style for command output.

  • json
  • text
  • table

--query (string)

A JMESPath query to use in filtering the response data.

--profile (string)

Use a specific profile from your credential file.

--region (string)

The region to use. Overrides config/env settings.

--version (string)

Display the version of this tool.

--color (string)

Turn on/off color output.

  • on
  • off
  • auto

--no-sign-request (boolean)

Do not sign requests. Credentials will not be loaded if this argument is provided.

--ca-bundle (string)

The CA certificate bundle to use when verifying SSL certificates. Overrides config/env settings.

--cli-read-timeout (int)

The maximum socket read time in seconds. If the value is set to 0, the socket read will be blocking and not timeout. The default value is 60 seconds.

--cli-connect-timeout (int)

The maximum socket connect time in seconds. If the value is set to 0, the socket connect will be blocking and not timeout. The default value is 60 seconds.

Output

None