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Open-source Citus delivers millions of queries per second more efficiently than Neki, the only other published data point at this scale Last month PlanetScale published a blog post on how they achieved 118 million queries per second on…
PostgreSQL and NUMA, Part 3 of 4 This series covers the specifics of running PostgreSQL on large systems with many processors. My experience is that people spend months often learning the basics when confronted with the problem. This…
We’ve recently been dealing with an interesting customer case where a PXC version upgrade from 5.7 to 8.0 seemed to trigger a completely unexpected problem. Even though the workload and MySQL settings did not change, all PXC members began…
Ingest fails suddenly, not gradually. Sample WAL volume, replica lag, and dead tuples every minute, and get one headroom percentage you can alert on.