InfluxDB is a popular open-source time series database that can handle large amounts of data from various sources, including IoT devices. The challenge of aggregating telemetry and metrics from millions of embedded Linux devices in real-time has been addressed by combining InfluxDB with Pantavisor-powered devices using the Telegraf plugin. This integration allows for automatic onboarding of devices, streamlined device management, and centralized monitoring of device metrics. By following a step-by-step guide, users can set up their IoT fleets to stream data to InfluxDB, enabling real-time monitoring and analysis of device performance and behavior.