{
  "id": "python/flask-sqlalchemy-commit-failure",
  "signature": "sqlalchemy.exc.OperationalError: (sqlite3.OperationalError) database is locked",
  "signature_zh": "SQLAlchemy 操作错误：数据库被锁定",
  "regex": "sqlalchemy\\.exc\\.OperationalError:\\ \\(sqlite3\\.OperationalError\\)\\ database\\ is\\ locked",
  "domain": "python",
  "category": "data_error",
  "subcategory": null,
  "root_cause": "Flask 应用尝试写入 SQLite 数据库时，数据库文件被其他进程锁定",
  "root_cause_type": "generic",
  "root_cause_zh": "Flask 应用尝试写入 SQLite 数据库时，数据库文件被其他进程锁定",
  "versions": [
    {
      "version": "3.9",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "3.10",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "使用并发写入而不加锁",
      "why_fails": "SQLite 不支持并发写入，会导致数据损坏",
      "fail_rate": 0.9,
      "condition": "",
      "sources": []
    },
    {
      "action": "删除数据库文件并重新创建",
      "why_fails": "数据丢失",
      "fail_rate": 0.8,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "使用连接池并设置超时",
      "success_rate": 0.9,
      "how": "app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///data.db?timeout=10'",
      "condition": "",
      "sources": []
    },
    {
      "action": "迁移到支持并发的数据库",
      "success_rate": 0.95,
      "how": "app.config['SQLALCHEMY_DATABASE_URI'] = 'postgresql://user:pass@localhost/db'",
      "condition": "",
      "sources": []
    }
  ],
  "workarounds_zh": [],
  "transition_graph": {
    "leads_to": [],
    "preceded_by": [],
    "frequently_confused_with": []
  },
  "official_doc_url": null,
  "official_doc_section": null,
  "error_code": null,
  "verification_tier": "ai_generated",
  "confidence": 0.85,
  "fix_success_rate": 0.8,
  "resolvable": "true",
  "first_seen": "2025-05-18",
  "last_confirmed": "2025-01-01",
  "last_updated": "2025-01-01",
  "evidence_count": 0,
  "tags": [],
  "locale": "en",
  "aliases": []
}