CloudWatch Embedded Metric Format enables you to ingest complex high-cardinality application data in the form of logs and easily generate actionable metrics from them. It has traditionally been hard to generate actionable custom metrics from your ephemeral resources such as Lambda functions, and containers. With this launch, you do not have to rely on complex architecture or multiple third party tools to gain insights into these environments. By sending your logs in the new Embedded Metric Format, you can now easily create custom metrics without having to instrument or maintain separate code, while gaining powerful analytical capabilities on your log data.
Source:: Amazon AWS