===AUTH_SERVICE_INCIDENT===
META:
  TYPE::INCIDENT_REPORT
  DATE::"2024-03-15"
  SEVERITY::CRITICAL
  COMPRESSION::MODERATE
INCIDENT:
  SERVICE::AUTH_SERVICE
  TIMESTAMP::"2024-03-15T14:32Z"
  DURATION::"47min"
  IMPACT::"12000 _USERS"
ROOT_CAUSE:
  CHAIN::[DB_CONNECTION_POOL_EXHAUSTION→LOGIN_SPIKE→CLIENT_RETRY_LOOP_BUG]
  TRIGGER::iOS_APP_v2.4.1<retry_loop_bug_introduced>
RESPONSE:
  IMMEDIATE::[
    "SCALE_POOL<50→200_connections>",
    HOTFIX_DEPLOY<disable_retry_loop>
  ]
  PERMANENT::iOS_v2.4.2<shipped_T_plus_3days>
LESSONS:
  GAPS::[connection_pool_monitoring_alerts,client_side_retry_backoff_policy]
===END===
