CloudWatch Metrics
Metrics, which are quantitative measurements representing a specific aspect of a resource’s performance, behavior, or utilization, are automatically collected in Amazon CloudWatch from AWS services such as DynamoDB database instances and Lambda functions. As metrics are collected over time, you can quickly graph their values and then choose the timeframe (e.g., 3 hours, 1 day, or 1 month) that you would like to see them.
You can also create a custom metric. These metrics are relevant to your organization and can be made based on the values in your log files. Custom metrics can track any essential data in your company, infrastructure, or application. Examples could be the number of requests your application receives or how many errors a particular application returns.
In the next section, you will see how to create metric filters in CloudWatch from predefined and custom metrics.
Metric Filters in CloudWatch
In AWS CloudWatch, a metric filter provides...