DatenbankenPercona Database BlogEnglisch (hoher Informationsgehalt bei geringem lokalem Volumen)
Datenbanken
The Problem The application is slow, the Slack channel is on fire, and somebody asks the oldest question in our job: What is running on the database right now? Query Analytics (QAN) in PMM is great for the history. It shows which queries…
Grab migrated its high-volume Counter Service from a wide column database to Aerospike using storage abstraction, shadow traffic, data parity validation, and gradual traffic migration. The redesigned data model consolidated time buckets…
Google has made Spanner Omni generally available, running its distributed SQL database on-premises, across clouds or on a laptop. Doing so meant replacing Colossus with a Colossus-like abstraction layer and TrueTime with software-based…
PostgreSQL 18's new `num_os_semaphores` preset reports how many OS semaphores the server needs—a formula that drifted wrong for twelve years until the… (I consult on PostgreSQL through PGX Inc..)