EVE Online. I designed and wrote most of the code for the hacking minigame in EVE. Sadly and unknown to us there was a small memory leak that happened once per

EVE Online. I designed and wrote most of the code for the hacking minigame in EVE. Sadly and unknown to us there was a small memory leak that happened once per game. This was basically unnoticeable until it hit production. Our little game was part of a bigger rework of Exploration in EVE and that plus the game being an entertaining way to make money meant there were upwards of 150k game instances being played a day. EVE does away with the Python GC as well so the memory leak caused us to have to restart nodes every three hours IIRC. My tech lead and I had to comb through and find it which he eventually did and sanity was restored very quickly. I don’t think it even cracks the top ten of production fuck ups at CCP though.