a

trading_system/binance_client.py

@@ -360,28 +360,63 @@ class BinanceClient:
             await self.client.close_connection()
             logger.info("币安客户端已断开连接")
     
-    async def get_all_usdt_pairs(self) -> List[str]:
+    async def get_all_usdt_pairs(self, max_retries: int = 3, timeout: int = 30) -> List[str]:
         """
         获取所有USDT交易对
+        添加超时处理和重试机制，避免推荐系统因网络超时中断
+        
+        Args:
+            max_retries: 最大重试次数（默认3次）
+            timeout: 单次请求超时时间（秒，默认30秒）
         
         Returns:
-            USDT交易对列表
+            USDT交易对列表（失败时返回空列表）
         """
-        try:
-            # 获取合约市场信息
-            exchange_info = await self.client.futures_exchange_info()
-            usdt_pairs = [
-                symbol['symbol'] 
-                for symbol in exchange_info['symbols']
-                if symbol['symbol'].endswith('USDT') 
-                and symbol['status'] == 'TRADING'
-                and symbol.get('contractType') == 'PERPETUAL'  # U本位永续合约
-            ]
-            logger.info(f"获取到 {len(usdt_pairs)} 个USDT永续合约交易对")
-            return usdt_pairs
-        except BinanceAPIException as e:
-            logger.error(f"获取交易对失败: {e}")
-            return []
+        for attempt in range(1, max_retries + 1):
+            try:
+                # 使用 _rate_limited_request 包装请求，添加速率限制
+                # 同时使用 asyncio.wait_for 添加超时处理
+                exchange_info = await asyncio.wait_for(
+                    self._rate_limited_request(
+                        'futures_exchange_info',
+                        self.client.futures_exchange_info()
+                    ),
+                    timeout=timeout
+                )
+                
+                usdt_pairs = [
+                    symbol['symbol'] 
+                    for symbol in exchange_info['symbols']
+                    if symbol['symbol'].endswith('USDT') 
+                    and symbol['status'] == 'TRADING'
+                    and symbol.get('contractType') == 'PERPETUAL'  # U本位永续合约
+                ]
+                logger.info(f"获取到 {len(usdt_pairs)} 个USDT永续合约交易对")
+                return usdt_pairs
+                
+            except asyncio.TimeoutError:
+                if attempt < max_retries:
+                    wait_time = attempt * 2  # 递增等待时间：2秒、4秒、6秒
+                    logger.warning(f"获取交易对超时（{timeout}秒），{wait_time}秒后重试 ({attempt}/{max_retries})")
+                    await asyncio.sleep(wait_time)
+                else:
+                    logger.error(f"获取交易对失败：{max_retries}次重试后仍然超时")
+                    return []
+                    
+            except BinanceAPIException as e:
+                logger.error(f"获取交易对失败（API错误）: {e}")
+                return []
+                
+            except Exception as e:
+                if attempt < max_retries:
+                    wait_time = attempt * 2
+                    logger.warning(f"获取交易对出错: {e}，{wait_time}秒后重试 ({attempt}/{max_retries})")
+                    await asyncio.sleep(wait_time)
+                else:
+                    logger.error(f"获取交易对失败（未知错误）: {e}")
+                    return []
+        
+        return []  # 所有重试都失败，返回空列表
     
     async def _rate_limited_request(self, endpoint: str, coro):
         """