Hello,

s2 primary master switchover will start in 1h: https://phabricator.wikimedia.org/T230785

List of affected wikis:  https://raw.githubusercontent.com/wikimedia/operations-mediawiki-config/master/dblists/s2.dblist 

s2 switchover was done
read-only start: 05:00:44
read-only stop: 05:01:34

Total read-only time: 50 seconds.

Manuel.