[Bug 1836475] Re: update-notifier-common weekly cron job runs at the same time for all computers across the globe

[Haw Loeung]

This just happened with conntrack metrics below:

| * 20200920-0647
|  629385 dst=91.189.95.15
|
| * 20200920-0648
| 1444902 dst=91.189.95.15
|
| * 20200920-0649
| 1044261 dst=91.189.95.15

With request logs showing a surge in this:

| xxx.xxx.xxx.xxx - - [20/Sep/2020:06:46:34 +0000] "GET /meta-release-lts HTTP/1.1" 304 129 "-"
"Python-urllib/3.5"

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https://bugs.launchpad.net/bugs/1836475

Title:
  update-notifier-common weekly cron job runs at the same time for all
  computers across the globe

Status in ubuntu-release-upgrader package in Ubuntu:
  Confirmed
Status in update-notifier package in Ubuntu:
  Confirmed

Bug description:
  Hi,

  /etc/cron.weekly/update-notifier-common is run at the same time on all
  machines across the globe. It's putting unnecessary stress on
  Canonical's infrastructure (changelogs.ubuntu.com, specifically).
  Could we please have this job spread out over 24h ?

  And could we please SRU this change ?

  Thanks

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