35 lines
751 B
Markdown
35 lines
751 B
Markdown
---
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title: Runbook — DB_UNAVAILABLE (데이터베이스 연결 불가)
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category: TRANSIENT_DEPENDENCY
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error_codes: [DB_UNAVAILABLE]
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severity: P1
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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: DB_UNAVAILABLE (`runbook://db/unavailable`)
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## Symptoms
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- HTTP 503 with `error.code=DB_UNAVAILABLE`
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- SQLState 08* connection errors in logs
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## Diagnosis
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- Check DB server health and connection pool exhaustion
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- Review network connectivity from app pods to DB
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## Action
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- Check DB primary health; failover to replica if available
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- Drain connection pool and reconnect
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## Escalation
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- P1: immediate if DB primary is down
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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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