What is the problem?
Due to on-site maintenance (T226778) going on some of the racks that host our primary database servers, we need to switchover some of our current primary masters to other hosts, to ensure that there is not an unexpected downtime as result of this on-site maintenance.
This means we need read-only windows to perform this maintenance.
How can we help you?
Notifying the affected wikis (below) with the scheduled maintenance.
What does success look like?
Affected wiki users will get to know that there will be a period of read-only time (30 minutes requested, expected just a few minutes if everything goes fine)
Users will know that the impact is the that: writes will be blocked, and reads will remain unaffected
What is your deadline?
These are the windows, days, time and affected wikis:
- s8: 10th Sept from 05:00-05:30 UTC. The affected wiki is: wikidatawiki - tracking task: T230762: Switchover s8 (wikidata) primary database master db1104 -> db1109 - 10th Sept @05:00 UTC
- s2: 17th Sept from 05:00-05:30 UTC. The list of affected wikis is at: https://raw.githubusercontent.com/wikimedia/operations-mediawiki-config/master/dblists/s2.dblist - tracking task: T230785: Switchover s2 primary database master db1066 -> db1122 - 17th Sept @05:00 UTC
- s3: 24th Sept from 05:00-05:30 UTC. The list of affected wikis is at: https://raw.githubusercontent.com/wikimedia/operations-mediawiki-config/master/dblists/s3.dblist - tracking task: T230783: Switchover s3 primary database master db1075 -> db1123 - 24th Sept @05:00 UTC
- s4: 26th Sept from 05:00-05:30 UTC. The affected wiki is: commonswiki - tracking task: T230784: Switchover s4 (commonswiki) primary database master db1081 -> db1138 - 26th Sept @05:00 UTC