35 lines
835 B
Markdown
35 lines
835 B
Markdown
---
|
|
title: Runbook — CACHE_STAMPEDE_LOCK_TIMEOUT (캐시 스탬피드 락 타임아웃)
|
|
category: TRANSIENT_DEPENDENCY
|
|
error_codes: [CACHE_STAMPEDE_LOCK_TIMEOUT]
|
|
severity: P2
|
|
owner: oncall
|
|
last_updated: 2026-06-15
|
|
status: stub
|
|
---
|
|
|
|
# Runbook: CACHE_STAMPEDE_LOCK_TIMEOUT (`runbook://cache/stampede-lock-timeout`)
|
|
|
|
## Symptoms
|
|
|
|
- HTTP 503 with `error.code=CACHE_STAMPEDE_LOCK_TIMEOUT`
|
|
- Multiple concurrent cache misses on same key; lock contention
|
|
|
|
## Diagnosis
|
|
|
|
- Check cache hit ratio metrics
|
|
- Identify cache keys with high miss rates
|
|
|
|
## Action
|
|
|
|
- Verify stampede lock TTL is configured appropriately
|
|
- Pre-warm cache for high-traffic keys on startup
|
|
|
|
## Escalation
|
|
|
|
- Escalate if backend load spike accompanies stampede
|
|
|
|
---
|
|
|
|
> **Stub**: Phase D2 — author body after domain adoption. (feature-operational-runbook-contract D9)
|