Actually it is feedback I have from the data guys at work, not HN. And you may be right about that configuration, but I cannot remember the exact details of th

Actually it is feedback I have from the data guys at work, not HN. And you may be right about that configuration, but I cannot remember the exact details of the discussion. Either way, don't get me wrong. I use MongoDB as well, and am quite fond of its aggregation framework. It's just not something that I catalog as "reliable and high performance" the way I do redis (which of course, also has limitations of its own).