Database Health Monitor Overview Monitor database server health across PostgreSQL, MySQL, and MongoDB by tracking key performance indicators including connection utilization, query throughput, replication lag, disk usage, cache hit ratios, vacuum activity, and lock contention. Prerequisites - Database credentials with access to system statistics views ( , , ) - , , or CLI tools for running health check queries - Permissions: role (PostgreSQL), privilege (MySQL) - Baseline metrics from a period of normal operation for threshold calibration - Alerting channel configured (email, Slack webhook, P…