protected long GetConsumedCapacityUnits(string table_name, string index_name, string metric_name, int look_back_minutes)
{
List <Dimension> dimensions = new List <Dimension> {
new Dimension {
Name = "TableName", Value = table_name
}
};
if (!string.IsNullOrWhiteSpace(index_name))
{
dimensions.Add(new Dimension {
Name = "GlobalSecondaryIndexName", Value = index_name
});
}
DateTime end_time = DateTime.UtcNow.AddMinutes(-5);
DateTime start_time = end_time.AddMinutes(-look_back_minutes);
AmazonCloudWatchClient amazon_cloud_watch_client = AWS.GetAmazonCloudWatchClient();
GetMetricStatisticsRequest get_metric_statistics_request = new GetMetricStatisticsRequest
{
Namespace = "AWS/DynamoDB",
Dimensions = dimensions,
MetricName = metric_name,
StartTime = start_time,
EndTime = end_time,
Period = 300,
Statistics = new List <string> {
"Sum"
}
};
GetMetricStatisticsResponse get_metric_statistics_response = amazon_cloud_watch_client.GetMetricStatistics(get_metric_statistics_request);
long consumed_capacity_units = 0;
if (get_metric_statistics_response != null && get_metric_statistics_response.Datapoints.Any())
{
double total_seconds = (end_time - start_time).TotalSeconds;
double total_sum = get_metric_statistics_response.Datapoints.Sum(datapoint => datapoint.Sum);
consumed_capacity_units = (long)Math.Ceiling(total_sum / total_seconds);
}
return(consumed_capacity_units);
}
