ruby - 使用 ruby​​ 在 simple_aws 中使用 get_metric_statistics

Question

我正在尝试探索 simple_aws gem。当我连接到 cloudwatch 以获取指标统计信息时，出现如下错误:

cw.get_metric_statistics(
 :metric_name => metric_name,
 :period => period,
 :start_time => start_time,
 :end_time => end_time,
 :statistics => "Average",
 :namespace => "AWS/EC2"
)

---

SimpleAWS::UnsuccessfulResponse: MissingParameter (400):

   The parameter Namespace is required.
   The parameter MetricName is required.  
   The parameter StartTime is required.  
   The parameter EndTime is required.  
   The parameter Period is required.  
   The parameter Statistics is required. 

后来，我尝试了这个:

cw.get_metric_statistics(
options => [
  {:metric_name=>"CPUUtilization",
   :period=>60,
   :start_time => Time.now()-86400,
   :end_time => Time.now()-3600,
   :statistics => "Average"
  }
]
)

但是出现如下错误:

URI::InvalidComponentError: bad component(expected query component): 

Action=GetMetricStatistics&{:metric_name=>"CPUUtilization"}.1.metric_name=CPUUtilization&{:metric_name=>"CPUUtilization"}.1.period=60&{:metric_name=>"CPUUtilization"}.1.start_time=2012-05-06%2014%3A25%3A28%20%2B0530&{:metric_name=>"CPUUtilization"}.1.end_time=2012-05-07%2013%3A25%3A28%20%2B0530&{:metric_name=>"CPUUtilization"}.1.statistics=Average&AWSAccessKeyId=AccessKey&SignatureMethod=HmacSHA256&SignatureVersion=2&Timestamp=2012-05-07T08%3A55%3A28Z&Version=2010-08-01&Signature=Signature

再试一次:

cw.get_metric_statistics(
namespace: 'AWS/EC2',
measure_name: 'CPUUtilization',
statistics: 'Average',
start_time: time-1000,
dimensions: "InstanceId=#{instance_id}"

)

ArgumentError:Array 与 Array 的比较失败

任何人都可以帮助找到发出此命令的正确语法。

Answer 1

result = cw.get_metric_statistics(step,
      start_time,
      end_time,
      metric,
      'AWS/RDS',
      'Average',
      dimensions={'DBInstanceIdentifier': [indentifier]})

这对我也有用