updateCollation.php script is awfully slow. It took over a week for
fr.wp (bug 54680), it'll probably take months if we ever decide to run
it on en.wp. That kinda sucks.
I'm not sure what can be done, or if it's just a problem on WMF configuration,
or what, so I'm just filing this and asking for comments. Please resolve
as INVALID if we in fact can't do anything about this.
* The workaround from bug 45970 which makes it use an index that's not
entirely perfect for the task (but likely good enough, no idea how
much slower that makes the script).
* Slave synchronisation, in which case maybe we can do something with
ops involvement? Don't ask me.
* There's just too much data being sent back-and-forth between PHP and
the database, in which case we can't do anything (unless we implement
collating entirely database-side, which I've been told is a bad idea).
I'm CC-ing competent people. Help?