chore: initialize from backend template 0a6dd0e

2026-08-13 20:31:02 +09:00
commit e64e701fe5
3223 changed files with 388401 additions and 0 deletions
@@ -0,0 +1,34 @@
+---
+title: Runbook — DB_IDLE_IN_TX_TIMEOUT (트랜잭션 idle 타임아웃)
+category: TRANSIENT_DEPENDENCY
+error_codes: [DB_IDLE_IN_TX_TIMEOUT]
+severity: P2
+owner: oncall
+last_updated: 2026-06-15
+status: stub
+---
+
+# Runbook: DB_IDLE_IN_TX_TIMEOUT (`runbook://db/idle-in-tx-timeout`)
+
+## Symptoms
+
+- HTTP 503 with `error.code=DB_IDLE_IN_TX_TIMEOUT`
+- SQLState 25P03; transaction held open too long without activity
+
+## Diagnosis
+
+- Check `idle_in_transaction_session_timeout` Postgres setting
+- Look for application-level long-running transaction holders
+
+## Action
+
+- Reduce transaction scope in application code
+- Verify `spring.jpa.properties.hibernate.connection.timeout` is bounded
+
+## Escalation
+
+- Escalate to DBA if connection pool exhaustion results
+
+---
+
+> **Stub**: Phase D2 — author body after domain adoption. (feature-operational-runbook-contract D9)