Incident Library

Symptom

Cache hit ratio drop

캐시 적중률 하락 · cache-hit-ratio-drop

1 case · 2026

Root cause Software defect

Component Database Schema migration

Contributing factor Unverified assumption

Organisation Daangn

Cases

IL-0451 Setting indexes INVISIBLE on Aurora MySQL 3.10 spiked CPU and ReadIOPS on all three readers but not on the writerDaangn · 2026
Root cause Software defect

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