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PSA: unattended-upgrades restarted nginx in the middle of my stream (lemmy.world)

submitted 1 week ago by ultimaluz@lemmy.world to c/selfhosted@lemmy.world

14 comments fedilink hide all child comments

Small thing but it got me last week. I relay my stream to twitch through nginx-rtmp on a cheap VPS, and one morning unattended-upgrades pulled a new systemd, needrestart restarted nginx (and postgres, and everything else) and the stream dropped. OBS reconnected fast but twitch counted it as two streams.

default timer is 06:00 UTC + up to 1h random, which is exactly when I stream lol. moved it with a drop-in:

# systemctl edit apt-daily-upgrade.timer
[Timer]
OnCalendar=
OnCalendar=*-*-* 13:45:00 UTC
RandomizedDelaySec=15m

the empty OnCalendar= matters, without it you just add a second time and keep the old one.

anyone else got bitten by this?

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[–] Chewy7324@discuss.tchncs.de 10 points 1 week ago (1 children)

There's few apps I can think of that fail when the service restarts. At worst Jellyfin and Home Asssistant take a minute or so to be available again. The former usually does not pose a problem because of client side caching while streaming. HA would be quite annoying, altough lights etc would keep their current state so it's unlikely I'd even notice.

That said I don't use unattended upgrades.

[–] Shimitar@downonthestreet.eu 4 points 1 week ago (1 children)

Yeah problem is when upgrades break stuff....

[–] ultimaluz@lemmy.world 1 points 1 week ago

it's a single cheap VPS that only I look after, so I'd rather get security patches the same day than remember to log in and do it, I guess that's the tradeoff. and yeah you're right about scheduling, that was the whole fix, the default timer runs around 6 UTC plus up to an hour of random delay and that happened to land on top of the stream. moved it to the afternoon and it's been quiet since