Patrick Donahue
levelbrook.bsky.social
Senior backend engineer. Ruby on Rails, Go, Postgres. I write about the part of a system that only misbehaves under load. 58 essays, plus the tools and demos behind them: levelbrook.com Open to contract work.
👤 Joined on 03 September 2026
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- 03 Eyl 2026, 21:42
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#PostgreSQL DBA-1: Domains 6 + 7 — MVCC, Locks, VACUUM & Autovacuum youtu.be/RqKWvyJ3-7c?...
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PgBouncer 1.26.1 fixes CVE-2026-107350: a client that knows one SCRAM user's password can authenticate as any other SCRAM user, including admins and backend superusers. www.postgresql.org/about/news/p... pgexperts.com #PostgreSQL
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The 2027 Gem Fellowship is quickly approaching. This year we are putting out a call to any companies using Ruby: Join us in supporting the maintainers! https://www.mikeperham.com/2026/10/15/coming-soon-the-2027-gem-fellowship/
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How do you run thousands of database schema changes at Shopify scale? Shared the story at Vienna.rb last month and the recording is now live on RubyEvents. Thanks for having me, see you at the next winter meetup! www.rubyevents.org/talks/rails-...
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Shared poolers are where this bites. One PgBouncer in front of five apps means one leaked app password was effectively the admin password until 1.26.1.
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