Jaime: I'm tagging DBA on this and assigning to you because I see this problem in the logs for the geowiki scripts:
OperationalError: (1290, 'The MariaDB server is running with the --read-only option so it cannot execute this statement')
The script is stat1003.eqiad.wmnet:/srv/geowiki/scripts/geowiki/mysql_config.py
What it's doing is running some sql / python on a lot of different dbs, and it uses s[1-7]-analytics-slave.eqiad.wmnet to connect.
The foundation-only part of geowiki used served at https://stats.wikimedia.org/geowiki-private seems to have stopped updating on December 18th. (Old version of the ticket said June 12th. but that was due to other reasons.)