35 lines
891 B
Markdown
35 lines
891 B
Markdown
---
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title: Runbook — DEPENDENCY_CIRCUIT_OPEN (서킷 브레이커 개방)
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category: TRANSIENT_DEPENDENCY
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error_codes: [DEPENDENCY_CIRCUIT_OPEN]
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severity: P2
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owner: oncall
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last_updated: 2026-06-15
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status: stub
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---
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# Runbook: DEPENDENCY_CIRCUIT_OPEN (`runbook://dependency/circuit-open`)
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## Symptoms
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- HTTP 503 with `error.code=DEPENDENCY_CIRCUIT_OPEN`
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- Circuit breaker (Resilience4j) in OPEN state for a dependency
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## Diagnosis
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- Check Resilience4j circuit breaker metrics for the dependency
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- Check upstream health; circuit opens after failure threshold breached
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## Action
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- Wait for circuit half-open probe (automatic after wait duration)
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- Resolve upstream issue to allow circuit to close
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## Escalation
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- P1 if circuit remains open > 5 minutes on a critical dependency
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---
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> **Stub**: Phase D2 — author body after domain adoption. (feature-operational-runbook-contract D9)
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