While sharding is often advertised as “THE solution to PostgreSQL scalability”, it is necessary to keep some technical aspects in consideration in terms of performance. The rule is: Sharding should not be used without a deeper awareness of what it is you are actually doing to the data. It’s important to keep in mind that […]

Citus is a capable sharding solution for PostgreSQL. It solves a ton of scalability issues: these can be addressed using a sharding approach. We at CYBERTEC have used Citus for some time and can wholeheartedly recommend it (check out our services to find out more). Since the need for PostgreSQL sharding is constantly growing, we […]

By Kaarel Moppel: So, you’re building the next unicorn startup and are thinking feverishly about a future-proof PostgreSQL architecture to house your bytes? My advice here, having seen dozens of hopelessly over-engineered / oversized solutions as a database consultant over the last 5 years, is short and blunt: Don’t overthink, and keep it simple on […]

By Kaarel Moppel: Some weeks ago I wrote about some common concepts / performance hacks related to how you can (relatively) easily scale to a terabyte cluster or more. Based on my experience visiting customers from various industries, 80% of them don’t even reach that threshold. However, I wanted to write another post showing that […]

By Kaarel Moppel: After a recent chat with a DBA who was taking his first steps towards migrating a big database away from Oracle to Postgres, I thought there are not enough articles on PostgreSQL features and “hacks” to achieve scalability. People want to know how to squeeze the last out of the hardware and […]

Scaling PostgreSQL: Modern servers provide people with more and more CPU cores. 16 cores or more are not uncommon these days. Unfortunately, PostgreSQL cannot scale a single query to more than one core. A lot of effort is going into this issue already. CYBERTEC experiments To address the issue, we’ve done some experiments to see […]