Hi CommRel,
We are planning a datacenter switchover for the week of September 18th (week 38) with the following schedule:
- Services: Tuesday, September 19th, 2023 13:00 UTC
- Traffic: Tuesday, September 19th, 2023 14:00 UTC
- MediaWiki: Wednesday, September 20th, 2023 14:00 UTC
The expected impact is 2-3 minutes of read-only on Wednesday, September 20th, 2023 14:00 UTC.
Note that we are implementing the changes described in Recurring, Equinox-based, Data Center Switchovers, in particular:
- there is no switchback - we are staying in the Texas DC until the next switchover
- future switchovers are predictable and happen every 6 months -- always on the week of an equinox
Let me know if you need more info on the changes.
Thank you!
Planning
As soon as the task is received by CRS
- Ask SRE if anything major changed since the last time (noticeable things that are worth being announced).
- If yes, update the process or the message.
- Confirm when the wikis will be in read-only
- Add the date to Asana, with a link to this task - done
Two weeks before (Sept 4 - week 36)
- Tech News message (initial warning)
- Update the message to communities
- Check on dates and links
- Have the message being translated by emailing both:
- Monitor the message's talk page
- Set the banner set for display on all wikis 30 minutes before it happens. - done
- The banner redirects to https://meta.wikimedia.org/wiki/Tech/Server_switch - checked
The week before (Sept 11 - week 37)
- Emailing mailing lists:
- Added to the news on the Meta front page - done
- Send the message to communities
- non-technical village pumps - queued 2023-09-15@09:23UTC
- bot coordination pages - queued 2023-09-15@09:30UTC
- Check on translations
- for the banner, they have been set from "proofreading" to "published" (direct link to translate) - all checked 2023-09-15@09:40UTC
- for the message (direct link to translate) - all checked 2023-09-15@09:20UTC
- Tech News (posting "it is happening this week" in the future issue) - done
The week it happens (Sept 18 - week 38)
- Emailing mailing lists:
- wikitech-ambassadors once again (reminder)
- wmfall (reminder, done by SRE)
- Emailing mailing lists:
- Check with SRE if it goes well.
The week after (Sept 25 - week 39)
- Debrief how it went, and document (comment on this task)