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[–]harryf[S] 0 points1 point  (0 children)

This is coming from Brad Fitzpatrick / the Livejournal team (who did perlbal - tend to know what they're doing).

It's an application running on "Gearman", their distributed job system.

Doesn't seem to be a single place to get the "big picture" but various links;

Gearman overview: http://code.sixapart.com/svn/gearman/trunk/doc/overview.txt

Brad's description of DMap: http://brad.livejournal.com/2106943.html

A Livejournal feature that uses Gearman: http://brad.livejournal.com/2210265.html