The GlobalContributions extension seems to be outdated compared to the GlobalContribs extension (plus, GlobalContribs also has a special page for global editcount) - the former repository should probably be archived.
IRC conversation related to this (if you're interested):
[15:39:47] <SamanthaNguyen> oh and, here's another task if you wanna take a look: https://phabricator.wikimedia.org/T154852 [15:42:30] <ashley> no idea really, but tl,dr: at least Brickipedia's implementation, which is essentially based on the core special pages, doesn't really scale. it might work for a handful of wikis but definitely won't work for ShoutWiki, let alone for WMF wikis -- that's pretty much why WMF sites have to rely on external, third-party developed and hosted things on Tool Labs (formerly known as Toolserver);... [15:42:32] <ashley> ...public data from WMF wikis is replicated to Tool Labs so people can build tools which perform potentially insanely expensive queries without there being any kind of a performance hit on the real production sites (*.wikipedia.org etc.) [15:46:12] <SamanthaNguyen> Right, that makes sense - GlobalContribs from my understanding is quite a performance hit because it has to get all this data from multiple wikis [15:46:41] <SamanthaNguyen> ( so I adjusted and renamed the ticket :) ) [15:47:29] <ashley> yeah -- when you have, say, hundreds of wikis, it might work, but when you have, say, over 1k wikis, you can bet safely that it's not gonna work (unless you throw plain ol' [[uncyclopedia:Bat Fuck Insane]] amounts of memory and time at it, which is gonna have a negative impact on other things) [15:49:01] <SamanthaNguyen> It looks like ShoutWiki has their own version of a global contributions special page (according to Special:Version) called LookupContribs, I'm betting that it's restricted to staff because of this reason? [15:51:02] <ashley> well, yes and no; it was originally based on old (like, 2006 -- literally code from the ArmchairGM codebase) Wikia code which essentially ran a query or two against all DBs...it worked out only so well, so for a long time the special page was essentially out of order; last year I rewrote the logic so now it's actually usable and definitely more scalable :-)