Pgpool-II

Input—per 1M tokens

Output—per 1M tokens

Context—tokens

WeightsClosed

About

Pgpool-II is ranked #10 of 30 in database proxy software on Inferse. It runs on Linux, Self-hosted. There is a free plan.

Compared on database proxy software

Free plan: Yespgpool.net
Deployment model: self-hostedpgpool.net
Connection pooling: Yespgpool.net
Query routing: Yespgpool.net
Load balancing: Yespgpool.net
Automatic failover: Yespgpool.net
Supported databases: PostgreSQLpgpool.net

Facts

Purpose: Pgpool-II is middleware between PostgreSQL servers and database clients that relays PostgreSQL protocol messages transparently.pgpool.net · 1 Oct 2026
High availability: It provides automatic failover, Watchdog for Pgpool-II high availability, quorum, and split-brain prevention.pgpool.net · 1 Oct 2026
Additional features: Additional features include in-memory query cache, online recovery, connection limiting, Watchdog, and replication.pgpool.net · 1 Oct 2026
License: The license permits use, copying, modification, and distribution of the software and documentation for any purpose without a fee.pgpool.net · 1 Oct 2026
Distribution: Pgpool-II is available as binary and source formats; the project provides RPM packages for Red Hat Enterprise Linux and compatible distributions.pgpool.net · 1 Oct 2026
APT packages: Users of Debian or Ubuntu are directed to packages provided by the PostgreSQL community.pgpool.net · 1 Oct 2026
Authentication: Supported authentication methods include trust, clear-text password, MD5, SCRAM-SHA-256, certificate, PAM, and LDAP; GSSAPI is not supported.pgpool.net · 1 Oct 2026
SSL: When enabled, SSL protects both frontend and backend communications, but it is off by default and requires OpenSSL support.pgpool.net · 1 Oct 2026
Support: Community support is provided through mailing lists and GitHub Issues, while SRA OSS K.K. offers commercial technical support, consulting, and system integration.pgpool.net · 1 Oct 2026
Security reporting: The community asks vulnerability reporters to email the project leader privately and does not offer bug bounties.pgpool.net · 1 Oct 2026
Release support: The project aims to fully support each major release for five years; unsupported releases receive only possible best-effort critical fixes and no formal binary packages.pgpool.net · 1 Oct 2026
Documentation: Official documentation is available in English and Japanese, with tutorials for basic configuration, Watchdog, AWS, and Aurora.pgpool.net · 1 Oct 2026