tech-log-backend/docs/runbooks/dependency-timeout.md

title, category, error_codes, severity, owner, last_updated, status

title	category	error_codes	severity	owner	last_updated	status
Runbook — DEPENDENCY_TIMEOUT (외부 의존성 타임아웃)	TRANSIENT_DEPENDENCY	DEPENDENCY_TIMEOUT	P1	oncall	2026-06-15	stub

Runbook: DEPENDENCY_TIMEOUT (runbook://dependency/timeout)

Symptoms

• HTTP 504 with error.code=DEPENDENCY_TIMEOUT
• Upstream service did not respond within configured timeout (default: global 10s)

Diagnosis

• Check dependency_name in log for which upstream is timing out
• Review upstream service latency metrics

Action

• Check upstream service health
• Verify timeout settings match SLA expectations

Escalation

• P1 if critical upstream is timing out at scale

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Stub: Phase D2 — author body after domain adoption. (feature-operational-runbook-contract D9)