Ubuntu
update-notifier package

  1. Bug #1836475
  2. Comment #16

Comment 16 for bug 1836475

Revision history for this message
Haw Loeung (hloeung) wrote : Re: [Bug 1836475] Re: [SRU] update-notifier-common weekly cron job runs at the same time for all computers across the globe

On Mon, Jun 14, 2021 at 04:16:28PM -0000, Robie Basak wrote:
> > I'm keen to try and avoid handling any more complex (arbitrary)
> customisations
>
> I agree! I think I prefer adding a random sleep for the SRU for this
> reason, even if the appropriate fix for the development release that
> landed in Groovy was to switch to a systemd timer. However a long random
> sleep in cron.weekly will hold up other cron.weekly jobs, so given that
> /usr/lib/ubuntu-release-upgrader/release-upgrade-motd already gates with
> a timestamp, perhaps backgrounding a shorter random delay would be
> preferable if that would be acceptable to Canonical IS?
>

We could try with a shorter random delay and see if it helps spread
the load.

The 'update-notifier-common' cron.weekly job is usually last so
wouldn't really hold up that many other cron.weekly jobs. If a shoter
random delay/sleep doesn't help, we could consider renaming it to
something like 'zzupdate-notifier-common' and increasing the delay
then.