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A major Postgres upgrade with zero downtime
We make you productive by giving your frontend a real-time database.
Sync servers also listen to Postgres’ write-ahead log; they take transactions, find affected queries, and send novelty back to browsers. Since launch we had folks sign up across the U.S, Europe and Asia; traffic ebbed and flowed, but there wasn’t a period where 15 minutes of downtime felt tolerable. Thanks to Nikita Prokopov, Joe Averbukh, Martin Raison, Irakli Safareli, Ian Sinnott for reviewing drafts of this essay
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