If you are using wiki replicas to query the "wikidatawiki" database (section s8), please be aware that we are expecting replication lag to grow up to 10 days, because of some ongoing maintenance work [0].
Only section s8 is affected, which contains only the "wikidatawiki" database. [1] Queries against other databases should not see any lag.
This is going to impact tools using wiki replicas, as well as queries running on Quarry or PAWS.
You can check the current replication lag at https://replag.toolforge.org/
Thanks for your patience while we complete this maintenance work.
[0] https://phabricator.wikimedia.org/T367856 [1] https://noc.wikimedia.org/db.php#tabs-s8
-- Francesco Negri (he/him) -- IRC: dhinus Site Reliability Engineer, Cloud Services team Wikimedia Foundation