ToolsDB will be undergoing maintenance and updates, Tuesday, June 5th at 1500 UTC to 1600 UTC.
Actual outage times should be fairly brief, but during this time the database will be taken offline and the system rebooted.  Due to the expected brief nature of the outage and the fact that some tables are not replicated (see, we are not planning on failing over to the replica at this time.

Brooke Storm
Operations Engineer
Wikimedia Cloud Services
IRC: bstorm_