Due to hardware malfunction (T213664) on the primary s4 database master (Commonswiki) and given that that host is old and needs to be decommissioned (T217396) we have to do a database master failover.
We would need a 30 minutes read-only window for Commonswiki
Date: Wed 19th June
Time: 05:00 AM UTC - 05:30 AM UTC (we expect not to use the full 30 minutes window)
Impact: All Commonswiki will go read-only. No edits will be allowed. Reads will not be impacted.
| Status | Subtype | Assigned | Task | ||
|---|---|---|---|---|---|
| Resolved | RLazarus | T243314 FY2020-2021 Q1 DC switchover and switchback | |||
| Resolved | RLazarus | T243316 FY2020-2021 Q1 eqiad -> codfw switchover | |||
| Resolved | • Marostegui | T186188 Failover DB masters in row D | |||
| Resolved | aaron | T88445 MediaWiki active/active datacenter investigation and work (tracking) | |||
| Resolved | • Marostegui | T220170 Address Database hardware infrastructure blockers on datacenter switchover & multi-dc deployment | |||
| Resolved | • Marostegui | T217396 Decommission db1061-db1073 | |||
| Resolved | • Marostegui | T224852 Failover s4 primary master: db1068 to db1081 | |||
| Resolved | Johan | T224516 Database primary master failover on s4 (commonswiki) |
@Trizek-WMF What are our capabilities for a CentralNotice on Commons when it comes to how to serve the notice in different languages on one wiki? We can't use user settings for logged-in users, right?
Anyway, I'll ping the Commons community and ask them if they want to put up a sitenotice and decide the hows and whens of that.
I've posted on Commons:
https://commons.wikimedia.org/wiki/Commons:Village_pump#No_editing_for_up_to_30_minutes_on_June_19
It's included in Tech News #23 as an early warning:
https://meta.wikimedia.org/wiki/Tech/News/2019/23
Keegan also suggested we request a watchlist notice:
https://commons.wikimedia.org/w/index.php?title=Help:Watchlist_messages/Wizard&withJS=MediaWiki:WatchlistMessageCreator.js#step0
I've suggested a watchlist notice now:
https://commons.wikimedia.org/wiki/MediaWiki_talk:WatchlistNotice
No, only writes to commonswiki (and tesrcommons) will be affected. But reads won't be affected, they will work normally.
Should it be
No, only writes to commonswiki (and testcommons) will be affected. But reads won't be affected, they will work normally.
Yes, Commons and Testcommmons.
I'll include this in the issue of Tech News going out on Monday, too, as a reminder.
This happened successfully.
Read only times (UTC):
Start: 05:01:02
Stop: 05:03:20
Total read only time: 2:18 minutes
Thanks for handling the communication!