[Toolserver-announce] Schema changes, now

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, We're currently applying schema changes from WMF for a MediaWiki upgrade. To reduce replication lag, we will first apply them to an inactive server for each cluster, then switch users to that server and apply them on the other one. The first part has started now, and we will be switching in an hour or two. During the second part, user databases will be unavailable until we finish the changes and switch back. This may take several hours to finish. The exception is s2/s5, which only has one server; these clusters will be lagged during the change. - river.