We'd like to request a 30 minutes read-only time window for the following wikis to perform maintenance on their primary database master:
Affected wikis:
altwiki apiportalwiki arbcom_ruwiki avkwiki bclwiktionary cebwiki dewiki diqwiktionary enwikivoyage eowikivoyage jawikivoyage lldwiki madwiki mgwiktionary mhwiktionary mniwiki mniwiktionary mnwwiktionary muswiki niawiki niawiktionary shwiki skrwiki skrwiktionary smnwiki srwiki taywiki thankyouwiki trvwiki trwikivoyage wawikisource
Impact: Those wikis will go read-only for around 30 minutes (hopefully a lot less). Reads will not be impacted
When: Tuesday 22nd June at 05:00 AM UTC