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Do your routine backend code releases require downtime? (lemm.ee)

submitted 1 year ago by [email protected] to c/experienced_devs

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Curious to know how many people do zero-downtime deployment of backend code and how many people regularly take their service down, even if very briefly, to roll out new code.

Zero-downtime deployment is valuable in some applications and a complete waste of effort in others, of course, but that doesn't mean people do it when they should and skip it when it's not useful.

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[–] mrkite 0 points 1 year ago (1 children)

Our backend is written in Go... CI/CD compiles the binary, uploads it to the server under a temporary name, mv's it into place and -HUP's the process. So no downtime at all.

[–] austin 4 points 1 year ago (1 children)

what about after the HUP? The time between HUP and the new binary starting up would be considered downtime

[–] mrkite 1 points 1 year ago

We're talking milliseconds. The whole thing is run through an nginx proxy which would immediately retry if it failed.