NAME

Paws::CloudWatch - Perl Interface to AWS Amazon CloudWatch

SYNOPSIS

  use Paws;

  my $obj = Paws->service('...')->new;
  my $res = $obj->Method(Arg1 => $val1, Arg2 => $val2);

DESCRIPTION

This is the Amazon CloudWatch API Reference. This guide provides detailed information about Amazon CloudWatch actions, data types, parameters, and errors. For detailed information about Amazon CloudWatch features and their associated API calls, go to the Amazon CloudWatch Developer Guide.

Amazon CloudWatch is a web service that enables you to publish, monitor, and manage various metrics, as well as configure alarm actions based on data from metrics. For more information about this product go to http://aws.amazon.com/cloudwatch.

For information about the namespace, metric names, and dimensions that other Amazon Web Services products use to send metrics to Cloudwatch, go to Amazon CloudWatch Metrics, Namespaces, and Dimensions Reference in the Amazon CloudWatch Developer Guide.

Use the following links to get started using the Amazon CloudWatch API Reference:

• Actions: An alphabetical list of all Amazon CloudWatch actions.

• Data Types: An alphabetical list of all Amazon CloudWatch data types.

• Common Parameters: Parameters that all Query actions can use.

• Common Errors: Client and server errors that all actions can return.

• Regions and Endpoints: Itemized regions and endpoints for all AWS products.

• WSDL Location: http://monitoring.amazonaws.com/doc/2010-08-01/CloudWatch.wsdl

In addition to using the Amazon CloudWatch API, you can also use the following SDKs and third-party libraries to access Amazon CloudWatch programmatically.

• AWS SDK for Java Documentation

• AWS SDK for .NET Documentation

• AWS SDK for PHP Documentation

• AWS SDK for Ruby Documentation

Developers in the AWS developer community also provide their own libraries, which you can find at the following AWS developer centers:

• AWS Java Developer Center

• AWS PHP Developer Center

• AWS Python Developer Center

• AWS Ruby Developer Center

• AWS Windows and .NET Developer Center

METHODS

DeleteAlarms()

  Arguments described in: L<Paws::CloudWatch::DeleteAlarms>

  Returns: nothing

  

Deletes all specified alarms. In the event of an error, no alarms are deleted.

DescribeAlarmHistory()

  Arguments described in: L<Paws::CloudWatch::DescribeAlarmHistory>

  Returns: L<Paws::CloudWatch::DescribeAlarmHistoryOutput>

  

Retrieves history for the specified alarm. Filter alarms by date range or item type. If an alarm name is not specified, Amazon CloudWatch returns histories for all of the owner's alarms.

DescribeAlarms()

  Arguments described in: L<Paws::CloudWatch::DescribeAlarms>

  Returns: L<Paws::CloudWatch::DescribeAlarmsOutput>

  

Retrieves alarms with the specified names. If no name is specified, all alarms for the user are returned. Alarms can be retrieved by using only a prefix for the alarm name, the alarm state, or a prefix for any action.

DescribeAlarmsForMetric()

  Arguments described in: L<Paws::CloudWatch::DescribeAlarmsForMetric>

  Returns: L<Paws::CloudWatch::DescribeAlarmsForMetricOutput>

  

Retrieves all alarms for a single metric. Specify a statistic, period, or unit to filter the set of alarms further.

DisableAlarmActions()

  Arguments described in: L<Paws::CloudWatch::DisableAlarmActions>

  Returns: nothing

  

Disables actions for the specified alarms. When an alarm's actions are disabled the alarm's state may change, but none of the alarm's actions will execute.

EnableAlarmActions()

  Arguments described in: L<Paws::CloudWatch::EnableAlarmActions>

  Returns: nothing

  

Enables actions for the specified alarms.

GetMetricStatistics()

  Arguments described in: L<Paws::CloudWatch::GetMetricStatistics>

  Returns: L<Paws::CloudWatch::GetMetricStatisticsOutput>

  

Gets statistics for the specified metric.

The maximum number of data points returned from a single GetMetricStatistics request is 1,440, wereas the maximum number of data points that can be queried is 50,850. If you make a request that generates more than 1,440 data points, Amazon CloudWatch returns an error. In such a case, you can alter the request by narrowing the specified time range or increasing the specified period. Alternatively, you can make multiple requests across adjacent time ranges.

Amazon CloudWatch aggregates data points based on the length of the period that you specify. For example, if you request statistics with a one-minute granularity, Amazon CloudWatch aggregates data points with time stamps that fall within the same one-minute period. In such a case, the data points queried can greatly outnumber the data points returned.

The following examples show various statistics allowed by the data point query maximum of 50,850 when you call GetMetricStatistics on Amazon EC2 instances with detailed (one-minute) monitoring enabled:

• Statistics for up to 400 instances for a span of one hour

• Statistics for up to 35 instances over a span of 24 hours

• Statistics for up to 2 instances over a span of 2 weeks

For information about the namespace, metric names, and dimensions that other Amazon Web Services products use to send metrics to Cloudwatch, go to Amazon CloudWatch Metrics, Namespaces, and Dimensions Reference in the Amazon CloudWatch Developer Guide.

ListMetrics()

  Arguments described in: L<Paws::CloudWatch::ListMetrics>

  Returns: L<Paws::CloudWatch::ListMetricsOutput>

  

Returns a list of valid metrics stored for the AWS account owner. Returned metrics can be used with GetMetricStatistics to obtain statistical data for a given metric.

PutMetricAlarm()

  Arguments described in: L<Paws::CloudWatch::PutMetricAlarm>

  Returns: nothing

  

Creates or updates an alarm and associates it with the specified Amazon CloudWatch metric. Optionally, this operation can associate one or more Amazon Simple Notification Service resources with the alarm.

When this operation creates an alarm, the alarm state is immediately set to INSUFFICIENT_DATA. The alarm is evaluated and its StateValue is set appropriately. Any actions associated with the StateValue is then executed.

PutMetricData()

  Arguments described in: L<Paws::CloudWatch::PutMetricData>

  Returns: nothing

  

Publishes metric data points to Amazon CloudWatch. Amazon Cloudwatch associates the data points with the specified metric. If the specified metric does not exist, Amazon CloudWatch creates the metric. It can take up to fifteen minutes for a new metric to appear in calls to the ListMetrics action.

The size of a PutMetricData request is limited to 8 KB for HTTP GET requests and 40 KB for HTTP POST requests.

Although the Value parameter accepts numbers of type Double, Amazon CloudWatch truncates values with very large exponents. Values with base-10 exponents greater than 126 (1 x 10^126) are truncated. Likewise, values with base-10 exponents less than -130 (1 x 10^-130) are also truncated.

Data that is timestamped 24 hours or more in the past may take in excess of 48 hours to become available from submission time using GetMetricStatistics.

SetAlarmState()

  Arguments described in: L<Paws::CloudWatch::SetAlarmState>

  Returns: nothing

  

Temporarily sets the state of an alarm. When the updated StateValue differs from the previous value, the action configured for the appropriate state is invoked. This is not a permanent change. The next periodic alarm check (in about a minute) will set the alarm to its actual state.

SEE ALSO

This service class forms part of Paws

BUGS and CONTRIBUTIONS

The source code is located here: https://github.com/pplu/aws-sdk-perl

Please report bugs to: https://github.com/pplu/aws-sdk-perl/issues

cpanm Paws::SDK::Config

perl -MCPAN -e shell
install Paws::SDK::Config