Advanced Monitoring and Alerting

At a C2 level, simply knowing your database is up isn't enough. Advanced monitoring goes beyond basic checks to proactively identify and prevent performance bottlenecks before they impact users.

We'll explore how to set up sophisticated systems that offer deep insights and timely alerts, transforming reactive troubleshooting into proactive management.

PostgreSQL relies heavily on the underlying operating system. Monitoring key OS metrics is crucial for understanding database health:

• CPU Utilization: High CPU can indicate complex queries or insufficient resources.
• Memory Usage: Excessive memory use or swapping (using disk as RAM) severely degrades performance.
• Disk I/O: High read/write latency or IOPS (Input/Output Operations Per Second) can point to slow storage or inefficient query patterns.

Tools like node_exporter (for Prometheus) collect these.