Prochaine Session :

PostgreSQL 9.0 et ses nouveautés

» 3 février 2011

» 9h30 - 17h30

» Paris

An introduction to pgPoolII version 3

pgpool-II is a middleware that works between PostgreSQL servers and a PostgreSQL database client. It provides Connection Pooling, Replication, Load Balancing, Parallel and Limiting Exceeding Connections

pgpool-II talks PostgreSQL's backend and frontend protocol, and relays a connection between them. Therefore, a database application (frontend) thinks that pgpool-II is the actual PostgreSQL server, and the server (backend) sees pgpool-II as one of its clients. Because pgpool-II is transparent to both the server and the client, an existing database application can be used with pgpool-II almost without a change to its sources.

More information at

Download this presentation : pgpool-ii-v3.pdf

About the speaker

Tatsuo Ishii is the creator and project leader of pgpool and has been involved in PostgreSQL since 1996.

He is a co-founder of Japan PostgreSQL User's Group (JPUG). He has written many PostgreSQL books and articles in Japan and is the director of SRA OSS, Inc. Japan, which provides various PostgreSQL related services.