如何获取 Ruby SDK Cloudwatch 指标

Question

我正在尝试使用 Rails 中的 Ruby SDK v2 从 cloudwatch 获取 CPU 指标。

metric = Aws::CloudWatch::Metric.new( 'AWS/EC2', 'CPUUtilization', region: 'eu-west-1')


@stats = metric.get_statistics({
  dimensions: [{ :name => 'InstanceID', :value => 'i-14b21212' }],
  start_time: 2.days.ago.utc.iso8601,
  end_time: Time.now.utc.iso8601,
  period: 300,
  statistics: ["Average"]

})

这没有错误，但 return 没有任何数据点。我已经用一个启用了高级监控的实例和一个没有任何东西的实例进行了尝试。

以上returns:

[Aws::CloudWatch::Client 200 0.639127 0 retries] get_metric_statistics(dimensions:[{name:"InstanceID",value:"[FILTERED]"}],start_time:2016-12-13 17:17:53 UTC,end_time:2016-12-15 17:17:53 UTC,period:300,statistics:["Average"],namespace:"AWS/EC2",metric_name:"CPUUtilization")

=> #<struct Aws::CloudWatch::Types::GetMetricStatisticsOutput label="CPUUtilization", datapoints=[]>

我也试过了，还是一无所获：

metric = Aws::CloudWatch::Metric.new( 'AWS/EC2', 'CPUUtilization', region: 'eu-west-1')


@stats = metric.get_statistics({
  dimensions: [{ :name => 'InstanceID', :value => 'i-14b21212' }],
  start_time: 2.days.ago.utc.iso8601,
  end_time: Time.now.utc.iso8601,
  period: 300,
  extended_statistics: ["p10", "p20", "p30", "p40", "p50", "p60", "p70", "p80", "p90", "p100"]

})

任何对我做错的事情的帮助都会很棒！

Answer 1

根据documentation：

Metric filters are case sensitive.

所以这是正确的调用：

dimensions: [{ :name => 'InstanceId', :value => 'i-14b21212' }],

如何获取 Ruby SDK Cloudwatch 指标

How to get Ruby SDK Cloudwatch metics

ruby

ruby-on-rails

amazon-cloudwatch

aws-sdk-ruby