how do big tech companies carry out updates and upgrades with downtime?

Lets say for example i deployed my website on vps So whenever update a ui I have to take down the website then run npm run build then take the site back up It's all automated though My thoughts are i am very sure this isn't how big companies handle it because its international
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Brendonovich
Brendonovich2y ago
While one server is updating, run a second server with the old site, once the first server is done updating then fire it back up, send all traffic to it, and wind down the second server That's the basic premise but it can get wayyyyyy more complex than that And that's only accounting for stateless backends
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Unknown User2y ago
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Brendonovich
Brendonovich2y ago
Ahhhh thanks for that, ‘rolling deployment’ is the term I was looking for but forgot
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