# MetricStreamStatisticsConfiguration


By default, a metric stream always sends the `MAX`, `MIN`, `SUM`, and `SAMPLECOUNT` statistics for each metric that is streamed. This structure contains information for one metric that includes additional statistics in the stream. For more information about statistics, see CloudWatch, listed in [ CloudWatch statistics definitions](https://docs.amazonaws.cn/AmazonCloudWatch/latest/monitoring/Statistics-definitions.html.html).

## Contents


 ** AdditionalStatistics **   <a name="ACW-Type-MetricStreamStatisticsConfiguration-AdditionalStatistics"></a>
The list of additional statistics that are to be streamed for the metrics listed in the `IncludeMetrics` array in this structure. This list can include as many as 20 statistics.  
If the `OutputFormat` for the stream is `opentelemetry1.0` or `opentelemetry0.7`, the only valid values are `p?? ` percentile statistics such as `p90`, `p99` and so on.  
If the `OutputFormat` for the stream is `json`, the valid values include the abbreviations for all of the statistics listed in [ CloudWatch statistics definitions](https://docs.amazonaws.cn/AmazonCloudWatch/latest/monitoring/Statistics-definitions.html.html). For example, this includes `tm98, ` `wm90`, `PR(:300)`, and so on.  
Type: Array of strings  
Required: Yes

 ** IncludeMetrics **   <a name="ACW-Type-MetricStreamStatisticsConfiguration-IncludeMetrics"></a>
An array of metric name and namespace pairs that stream the additional statistics listed in the value of the `AdditionalStatistics` parameter. There can be as many as 100 pairs in the array.  
All metrics that match the combination of metric name and namespace will be streamed with the additional statistics, no matter their dimensions.  
Type: Array of [MetricStreamStatisticsMetric](API_MetricStreamStatisticsMetric.md) objects  
Required: Yes

## See Also


For more information about using this API in one of the language-specific Amazon SDKs, see the following:
+  [Amazon SDK for C\$1\$1](https://docs.amazonaws.cn/goto/SdkForCpp/monitoring-2010-08-01/MetricStreamStatisticsConfiguration) 
+  [Amazon SDK for Java V2](https://docs.amazonaws.cn/goto/SdkForJavaV2/monitoring-2010-08-01/MetricStreamStatisticsConfiguration) 
+  [Amazon SDK for Ruby V3](https://docs.amazonaws.cn/goto/SdkForRubyV3/monitoring-2010-08-01/MetricStreamStatisticsConfiguration)