Azure Event Hubs is a real-time data pipeline service in the Microsoft Azure cloud that stores events in sequence for a configurable retention time, allowing applications to stream or replay data as needed. The service has similarities with Kafka and AWS Kinesis services, and its capacity is constrained by throughput units provisioned for an Event Hub namespace. Monitoring all Event Hubs is crucial to confirm performance and avoid saturating provisioned capacity, which can result in throttling, dropped events, and exceptions. By integrating Datadog with Azure Event Hubs, users gain access to a full suite of metrics, including standard Azure metrics, custom metrics, and advanced monitoring functionality such as graphing, dashboards, and algorithmic alerting. This integration enables users to bring observability to their Azure infrastructure and monitor modern applications more effectively.