> Is Facebook's use of the tools merely somewhat unreasonable, such that the tools should still hold? Or is it sufficiently past reasonability that they shouldn't have to hold any longer?
A fair question. The most reliable way to answer it is to see whether there are similar tools that hold up better under load. For example, are there rival version control systems that scale better than Git? Ditto for the other tools.
(Let's all watch out for the human tendency to interpret an affirmative answer as taking a side in e.g. a Git vs X competition. A more useful way to interpret it would be as a source of ideas on how to improve Git.)
A fair question. The most reliable way to answer it is to see whether there are similar tools that hold up better under load. For example, are there rival version control systems that scale better than Git? Ditto for the other tools.
(Let's all watch out for the human tendency to interpret an affirmative answer as taking a side in e.g. a Git vs X competition. A more useful way to interpret it would be as a source of ideas on how to improve Git.)