Modern monitoring tools like Prometheus, Grafana, and the ELK Stack have revolutionized system observability. Prometheus excels in collecting and querying metrics, offering seamless alerting for dynamic infrastructures. Grafana transforms raw data into stunning, interactive visualizations, empowering real-time decision-making. The ELK Stack (Elasticsearch, Logstash, Kibana) is a powerhouse for log analysis, enabling quick insights into system performance and issues. Together, they form a robust toolkit for maintaining system health and ensuring peak performance in complex environments. What’s your favorite tool for monitoring?