https://ivanluminaria.com/en/tags/galera/Recent content in Galera on Ivan LuminariaHugoenTue, 17 Feb 2026 08:03:00 +0100https://ivanluminaria.com/en/posts/mysql/galera-cluster-3-nodi/Tue, 17 Feb 2026 08:03:00 +0100https://ivanluminaria.com/en/posts/mysql/galera-cluster-3-nodi/<p>The ticket was laconic, as it often is when the problem is serious: &ldquo;The database went down again. The application is stopped. Third time in two months.&rdquo;</p> <p>The client had a MariaDB on a single Linux server — a business management application used by about two hundred internal users, with load spikes during end-of-month accounting closures. Every time the server had a problem — a disk slowing down, a system update requiring a reboot, a process consuming all the RAM — the database crashed and with it the entire business operations.</p>