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package Paws::EMR::CloudWatchAlarmDefinition; |
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use Moose; |
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has ComparisonOperator => (is => 'ro', isa => 'Str', required => 1); |
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has Dimensions => (is => 'ro', isa => 'ArrayRef[Paws::EMR::MetricDimension]'); |
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has EvaluationPeriods => (is => 'ro', isa => 'Int'); |
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has MetricName => (is => 'ro', isa => 'Str', required => 1); |
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has Namespace => (is => 'ro', isa => 'Str'); |
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has Period => (is => 'ro', isa => 'Int', required => 1); |
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has Statistic => (is => 'ro', isa => 'Str'); |
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has Threshold => (is => 'ro', isa => 'Num', required => 1); |
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has Unit => (is => 'ro', isa => 'Str'); |
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1; |
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### main pod documentation begin ### |
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=head1 NAME |
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Paws::EMR::CloudWatchAlarmDefinition |
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=head1 USAGE |
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This class represents one of two things: |
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=head3 Arguments in a call to a service |
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Use the attributes of this class as arguments to methods. You shouldn't make instances of this class. |
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Each attribute should be used as a named argument in the calls that expect this type of object. |
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As an example, if Att1 is expected to be a Paws::EMR::CloudWatchAlarmDefinition object: |
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$service_obj->Method(Att1 => { ComparisonOperator => $value, ..., Unit => $value }); |
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=head3 Results returned from an API call |
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Use accessors for each attribute. If Att1 is expected to be an Paws::EMR::CloudWatchAlarmDefinition object: |
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$result = $service_obj->Method(...); |
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$result->Att1->ComparisonOperator |
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=head1 DESCRIPTION |
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The definition of a CloudWatch metric alarm, which determines when an |
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automatic scaling activity is triggered. When the defined alarm |
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conditions are satisfied, scaling activity begins. |
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=head1 ATTRIBUTES |
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=head2 B<REQUIRED> ComparisonOperator => Str |
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Determines how the metric specified by C<MetricName> is compared to the |
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value specified by C<Threshold>. |
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=head2 Dimensions => ArrayRef[L<Paws::EMR::MetricDimension>] |
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A CloudWatch metric dimension. |
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=head2 EvaluationPeriods => Int |
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The number of periods, expressed in seconds using C<Period>, during |
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which the alarm condition must exist before the alarm triggers |
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automatic scaling activity. The default value is C<1>. |
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=head2 B<REQUIRED> MetricName => Str |
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The name of the CloudWatch metric that is watched to determine an alarm |
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condition. |
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=head2 Namespace => Str |
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The namespace for the CloudWatch metric. The default is |
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C<AWS/ElasticMapReduce>. |
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=head2 B<REQUIRED> Period => Int |
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The period, in seconds, over which the statistic is applied. EMR |
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CloudWatch metrics are emitted every five minutes (300 seconds), so if |
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an EMR CloudWatch metric is specified, specify C<300>. |
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=head2 Statistic => Str |
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The statistic to apply to the metric associated with the alarm. The |
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default is C<AVERAGE>. |
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=head2 B<REQUIRED> Threshold => Num |
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The value against which the specified statistic is compared. |
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=head2 Unit => Str |
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The unit of measure associated with the CloudWatch metric being |
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watched. The value specified for C<Unit> must correspond to the units |
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specified in the CloudWatch metric. |
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=head1 SEE ALSO |
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This class forms part of L<Paws>, describing an object used in L<Paws::EMR> |
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=head1 BUGS and CONTRIBUTIONS |
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The source code is located here: https://github.com/pplu/aws-sdk-perl |
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Please report bugs to: https://github.com/pplu/aws-sdk-perl/issues |
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=cut |
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