pgbouncer is one of the most widely used tool for connection pooling. At CYBERTEC, we’ve successfully deployed it in many different situations. It has proven to be reliable as well as useful. Before we dive into different pooling modes and their implications, why do we need a connection pooler in the first place? The reason […]

© Laurenz Albe 2022 It is known that high network latency is bad for database performance. PostgreSQL v14 has introduced “pipeline mode” for the libpq C API, which is particularly useful to get decent performance over high-latency network connections. If you are using a hosted database in “the cloud”, then this article might be interesting […]

Database performance is truly important. However, when looking at performance in general people only consider the speed of SQL statements and forget the big picture. The questions now are: What is this big picture I am talking about? What is it that can make a real difference? What if not the SQL statements? More often […]

© Laurenz Albe 2020 (Updated 2023-02-22) In my daily work, I see many databases with a bad setting for max_connections. There is little advice out there for setting this parameter correctly, even though it is vital for the health of a database. So I decided to write up something. What is max_connections? According to the […]

By Kaarel Moppel Version 12 of PostgreSQL is not exactly fresh out of the oven, as the first minor release was already announced. However, I think it’s fair to say that this version can be still considered fresh for most users, and surely only a small percentage of users has upgraded. So I think it […]