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by DrJ 4508 days ago
Feels like this list (and the original post) are problems caused by:

* lack of proper/default monitoring advocated for your tools (2), (4).

* Choosing poor (default/recommended) settings (1), (4).

* Keeping stateless server/instances when you don't need to (5), (6).

* Not tracking performance as part of monitoring (3), (4)

Albeit, I have made the same mistakes too.

edit: formatting