New
- MySQL: slow-log status, buffer-pool hit rate, temp tables on disk, index-less joins, queries running right now and the top slow patterns. Redis: eviction policy, fragmentation, rejected clients, the slow log.
- PostgreSQL on the host, in a container or on a private RDS (read-only role): connections, idle-in-transaction, cache hit, pg_stat_statements top queries and table bloat.
- Literals are stripped before anything leaves the server, and the agent never reads an application .env.