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Merge pull request #1874 from pretix/perf2020

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Raphael Michel
2020-12-14 17:02:01 +01:00
committed by GitHub
parent 04bfa63a5e 1f21d1420c
commit c47e41ac8a
8 changed files with 86 additions and 67 deletions
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7
src/pretix/base/services/quotas.py
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@@ -113,10 +113,11 @@ class QuotaAvailability:
raise e
def _write_cache(self, quotas, now_dt):
events = {q.event for q in quotas}
# We used to also delete item_quota_cache:* from the event cache here, but as the cache
# gets more complex, this does not seem worth it. The cache is only present for up to
# 5 seconds to prevent high peaks, and a 5-second delay in availability is usually
# tolerable
update = []
for e in events:
e.cache.delete('item_quota_cache')
for q in quotas:
rewrite_cache = self._count_waitinglist and (
not q.cache_is_hot(now_dt) or self.results[q][0] > q.cached_availability_state