https://en.wikipedia.org/wiki/Thundering_herd_problem http://www.catb.org/jargon/html/T/thundering-herd-problem.html https://instagram-engineering.com/thundering-herds-promises-82191c8af57d https://www.reddit.com/r/RedditEng/comments/obqtfm/solving_the_three_stooges_problem/