Nikolay and Michael discuss Postgres connection poolers — when and why we need them, the king that is PgBouncer, and the many new pretenders to the throne.
 
Here are links to a few things they mentioned: 

• max_connections https://www.postgresql.org/docs/current/runtime-config-connection.html#GUC-MAX-CONNECTIONS 
• Improving Postgres Connection Scalability: Snapshots (blog post by Andres Freund) https://techcommunity.microsoft.com/t5/azure-database-for-postgresql/improving-postgres-connection-scalability-snapshots/ba-p/1806462 
• PgBouncer https://github.com/pgbouncer/pgbouncer
• Odyssey https://github.com/yandex/odyssey
• PgCat https://github.com/postgresml/pgcat 
• Adopting PgCat: A Nextgen Postgres Proxy https://www.instacart.com/company/how-its-made/adopting-pgcat-a-nextgen-postgres-proxy/ 
• Supavisor https://github.com/supabase/supavisor 
• pgagroal https://github.com/agroal/pgagroal
• PgBouncer is useful, important, and fraught with peril (blog post from JP Camara) https://jpcamara.com/2023/04/12/pgbouncer-is-useful.html 

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What did you like or not like? What should we discuss next time? Let us know via a YouTube comment, on social media, or by commenting on our Google doc!

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Postgres FM is brought to you by:

• Nikolay Samokhvalov, founder of Postgres.ai
• Michael Christofides, founder of pgMustard

With special thanks to:

• Jessie Draws for the amazing artwork