Elasticsearch is used for a wide variety of data types — one of these is metrics. With the introduction of Metricbeat many years ago and later our APM Agents, the metric use case has become more popular. Over the years, Elasticsearch has made many improvements on how to handle things like metrics aggregations and sparse documents. At the same time, TSVB visualizations were introduced to make visualizing metrics easier.

Event-driven architecture is an efficient and effective way to process random, high-volume events in software. Real-time monitoring of event-driven system architecture has become increasingly important as more and more applications and services move toward this architecture.