Percona Database Performance Blog

The common practice is to size the Galera Cache based on write volume measured during peak load, but often it is more of a guesswork. The writeset cache capacity planning is crucial to shorten the maintenance time and avoid long state transfers while the cluster runs with reduced compute power. Now, if you could understand what’s exactly inside the cache, wouldn’t the plannin...

Percona University is coming to Montevideo. On September 23rd, 2026, we’re getting together for a full day of technical talks on open source software, and you are invited!

If you work or study with open source software in Uruguay, this one is for you. It’s a whole day of learning, with the people who build and run these systems every day. No sales pitch, just go...

Our first post showed MySQL 9.7 with one change: mark a table ENGINE=DuckDB and its analytical queries run in DuckDB instead of InnoDB. The question we kept getting after that was about replication. Can you keep a normal InnoDB primary for the writes, and run a replica where the big tables are ENGINE=DuckDB? Then the heavy reports run on a column store, and ordinary MySQL rep...

We’re happy to announce that Percona Server for MongoDB (PSMDB) 8.0.28-12 extends platform support to RHEL 10 and its derivatives (Oracle Linux 10, Rocky Linux 10, AlmaLinux 10, and other RHEL-compatible distributions) for both x86_64 and ARM (aarch64) architectures. This release also adds support for Debian 13 “Trixie” on x86_64 and ARM64. We’ll continue...

Percona Search for MongoDB is Percona’s downstream distribution of mongot, the search engine that provides MongoDB’s full-text and vector search capabilities. With this addition, you can power your applications with AI and advanced search techniques – anywhere, and without vendor lock-in. It’s the same search engine that powers MongoDB Atlas Search. 

Percona Search for...