{"record":{"id":"e074e2831be45717","repo":"hsliuping/TradingAgents-CN","slug":"failed-to-get-data-from-alpha-vantage-after-max-r","errorCode":null,"errorMessage":"Failed to get data from Alpha Vantage after {max_retries} attempts","messagePattern":"Failed to get data from Alpha Vantage after (.+?) attempts","errorType":"error_code","errorClass":"AlphaVantageAPIError","httpStatus":null,"severity":"error","filePath":"tradingagents/dataflows/providers/us/alpha_vantage_common.py","lineNumber":267,"sourceCode":"                time.sleep(retry_delay)\n                continue\n            else:\n                raise AlphaVantageAPIError(\"Alpha Vantage API request timeout\")\n                \n        except requests.exceptions.RequestException as e:\n            logger.error(f\"❌ [Alpha Vantage] 请求失败: {e}\")\n            if attempt < max_retries - 1:\n                time.sleep(retry_delay)\n                continue\n            else:\n                raise AlphaVantageAPIError(f\"Alpha Vantage API request failed: {e}\")\n        \n        except json.JSONDecodeError as e:\n            logger.error(f\"❌ [Alpha Vantage] JSON 解析失败: {e}\")\n            raise AlphaVantageAPIError(f\"Failed to parse Alpha Vantage API response: {e}\")\n    \n    # 所有重试都失败\n    raise AlphaVantageAPIError(f\"Failed to get data from Alpha Vantage after {max_retries} attempts\")\n\n\ndef format_response_as_string(data: Dict[str, Any], title: str = \"Alpha Vantage Data\") -> str:\n    \"\"\"\n    将 API 响应格式化为字符串\n    \n    Args:\n        data: API 响应数据\n        title: 数据标题\n        \n    Returns:\n        格式化后的字符串\n    \"\"\"\n    try:\n        # 添加头部信息\n        header = f\"# {title}\\n\"\n        header += f\"# Data retrieved on: {datetime.now().strftime('%Y-%m-%d %H:%M:%S')}\\n\\n\"\n        ","sourceCodeStart":249,"sourceCodeEnd":285,"githubUrl":"https://github.com/hsliuping/TradingAgents-CN/blob/74783e8817d6cf6de29867880631cc555153f36b/tradingagents/dataflows/providers/us/alpha_vantage_common.py#L249-L285","documentation":"Raised as AlphaVantageAPIError after the retry loop finishes without returning data and without a more specific exception — the theoretical 'all retries exhausted' fallback at the end of _make_api_request. In practice it appears when every attempt hits a path that continues rather than raises (e.g. benign rate-limit Notes exhausted the budget).","triggerScenarios":"max_retries attempts all take the `continue` branch (rate-limit Note with wait then retry) and the loop ends, reaching the trailing raise instead of the dedicated rate-limit error.","commonSituations":"Tuning max_retries/retry_delay down so the loop drains on retryable conditions; concurrent callers sharing a quota so every attempt is throttled.","solutions":["Treat it like a rate-limit/connectivity failure: back off substantially and retry the whole request later","Increase retry_delay and max_retries so throttled attempts eventually succeed","Reduce concurrent Alpha Vantage usage or upgrade the key plan"],"exampleFix":"# before\nmax_retries, retry_delay = 1, 0\n# after\nmax_retries, retry_delay = 5, 12  # survive throttled windows","handlingStrategy":"retry","validationCode":null,"typeGuard":null,"tryCatchPattern":"from tradingagents.dataflows.providers.us.alpha_vantage_common import AlphaVantageAPIError\nfor delay in (60, 300, 900):\n    try:\n        data = _make_api_request(params); break\n    except AlphaVantageAPIError as e:\n        if 'after' in str(e) and 'attempts' in str(e):\n            time.sleep(delay)\n        else:\n            raise","preventionTips":["Use generous retry_delay when on a free key","Back off at the caller level too (exponential with cap)","Reduce concurrent AV consumers of the same key"],"tags":["python","alpha-vantage","retry","exhausted"],"backgroundTag":"retries-exhausted","analyzedSha":"74783e8817d6cf6de29867880631cc555153f36b","analyzedAt":"2026-08-28T11:39:07.729Z","schemaVersion":2},"datasetVersion":"2026-08-28T16:17:29.566Z"}