DatabasesPercona Database Blog
Databases
When you’re running MongoDB in production, backups are non-negotiable. But not all backup strategies are equal. The gap between a good backup strategy and a bad one only becomes visible at the worst possible moment: when you actually need…
Upstream MySQL published an out-of-schedule release this week with two high-severity CVE fixes. If you’re running Percona Server for MySQL 5.7 or 8.0 under Extended Lifecycle Support (ELS), the program we previously called Post EOL…
After more than 20 years working with PostgreSQL, I keep seeing the same problems surface at the worst possible times - bloat that sneaks up on you, replication slots quietly holding back WAL, transaction ID wraparound that nobody caught…
One of our client’s PostgreSQL 16.8 production databases started logging what looked like a memory error: ERROR: invalid memory alloc request size The error immediately pointed toward two likely suspects: Memory exhaustion Memory…