Code RoomCache grows without bound
MediumPrep Room Coding #2233

Cache grows without bound

Code reviewStorage & CDNMid–Senior~18 min

Review this Python on-disk-blob cache wrapper.

What a strong answer looks like

Separate real bugs from style. Rank issues by severity, point at the root cause rather than the symptom, and suggest a concrete fix, specific and kind.

0:00 of about 18 min
Mark a line and say what kind of problem it is.0 findings
1class ThumbnailCache:
2 def __init__(self):
3 self._cache = {} # image_id -> bytes
4 
5 def get(self, image_id, render):
6 if image_id in self._cache:
7 return self._cache[image_id]
8 data = render(image_id) # decodes + resizes, ~200KB-2MB each
9 self._cache[image_id] = data
10 return data
Which questions mattered is sealed until you submit. Telling you now would just be handing over the edge cases.