title: Query metrics for multiple instances from AWS Cloudwatch
body: <p>I'm trying to fetch CPUUtilization Statistics for multiple instances at once to avoid API rate quota errors.</p>
  
  <blockquote>
    <p>&amp;MetricName=CPUUtilization&amp;Namespace=AWS%2FEC2&amp;Statistics.member.1=Sum&amp;Statistics.member.2=SampleCount&amp;Statistics.member.3=Maximum&amp;Statistics.member.4=Minimum&amp;Period=60&amp;StartTime=2015-03-16T18%3A11%3A15&amp;EndTime=2015-03-16T19%3A11%3A15&amp;Dimensions.member.1.Name=InstanceId&amp;Dimensions.member.1.Value=ABC&amp;Dimensions.member.2.Name=InstanceId&amp;Dimensions.member.2.Value=CDE</p>
  </blockquote>
  
  <p>The response contains data only for CDE instance, and the first value for InstanceId Dimension appears to be ignored.</p>
  
  <p>Does anyone have a solution on how to build a request to query multiple Dimension values in one request? </p>