Show Notes
Nik and Michael discuss disks in relation to Postgres — why they matter, how saturation can happen, some modern nuances, and how to prepare to avoid issues.
Here are some links to things they mentioned: Nik’s tweet demonstrating a NOTIFY hot spot https://x.com/samokhvalov/status/1959468091035009245 Postgres LISTEN/NOTIFY does not scale (blog post by Recall ai) https://www.recall.ai/blog/postgres-listen-notify-does-not-scale track_io_timing https://www.postgresql.org/docs/current/runtime-config-statistics.html#GUC-TRACK-IO-TIMING pg_test_timing https://www.postgresql.org/docs/current/pgtesttiming.html PlanetScale for Postgres https://planetscale.com/blog/planetscale-for-postgres Out of disk episode https://postgres.fm/episodes/out-of-disk 100TB episode https://postgres.fm/episodes/to-100tb-and-beyond Latency Numbers Every Programmer Should Know https://gist.github.com/jboner/2841832 Fio https://github.com/axboe/fio
~~~ What did you like or not like? What should we discuss next time? Let us know via a YouTube comment, on social media, or by commenting on our Google doc!
~~~ Postgres FM is produced by: Michael Christofides, founder of pgMustard Nikolay Samokhvalov, founder of Postgres.ai
With credit to: Jessie Draws for the elephant artwork
More from Postgres FM
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Nik and Michael are joined by Salma El-Sayed and Kirk Wolak to discuss their in-progress and very ambitious Google Summer of Code project around adding Btree Merge support to Postgres.
Nik and Michael are joined by Sai Srirampur to discuss ClickHouse's new managed Postgres service.
Nik and Michael discuss hot_standby_feedback — what it controls, whether and when read replicas should be changed to on, and other settings you can change to help too.
Nik and Michael are joined by Shaun Thomas to discuss estimating work_mem, memory management in general, and writing an extension to help.