Build your own resource monitor with QuestDB and Grafana

QuestDB serves as an open-source time-series database tailored for demanding applications, providing ultra-low latency and high ingestion throughput, with native support for Parquet and SQL to ensure data portability. The tutorial guides users on creating a resource monitor that polls system resource usage, stores the information in QuestDB, and visualizes it using Grafana in real-time. Utilizing the Python library psutil, the tutorial illustrates how to monitor and manage system processes by collecting data on CPU, RAM, and other system metrics. The guide demonstrates correlating system resource data with application events using SQL queries and explains how to enhance data visualization and readability with Grafana's transformation features. By the end, users gain a foundational understanding of resource monitoring and event tracking, with the potential to build scalable monitoring systems leveraging QuestDB and Grafana.