Amazon RDS vs pgagroal

Amazon RDS has no write-up on Specifiction yet; its figures are above.

pgagroal is a free, self-hosted PostgreSQL connection pool for Linux and macOS. It supports per-user and per-database connection limits, pool prefill, idle connection removal, and connection validation. Administrators can enable or disable database access and choose graceful or fast shutdown. Remote management and command-line tools handle runtime administration and user management. Monitoring exports Prometheus metrics and includes a Grafana 12 dashboard. Authentication can use database-backed queries or a user vault for credentials. If a PostgreSQL server can no longer accept writes, pgagroal can trigger an external failover workflow. The project lists TLS v1.2+ and describes both server-only and mutual certificate authentication. It works with PostgreSQL-compliant drivers including pgjdbc, Npgsql, and pq. Tested systems listed include Fedora 38+, RHEL 9.x, Rocky Linux 9.x, FreeBSD, and OpenBSD; releases list packages through Fedora 42/43, RHEL 10, and Rocky Linux 10. The repository identifies a BSD-3-Clause license. GitHub is used for questions, issues, feature requests, and code contributions.