xz2000
28bae35783
**版本**: 4.0 (最终版)
**核心思想**: 逻辑路径被转换为文件名的一部分，实现极致扁平化的文件存储。
---
## 一、 文件保存规则
### 1.1. 核心原则
所有元数据都被编码到文件名中。一个逻辑上的层级路径（例如 `product/P001_all/mlstm/v2`）应该被转换为一个用下划线连接的文件名前缀（`product_P001_all_mlstm_v2`）。
### 1.2. 文件存储位置
- **最终产物**: 所有最终模型、元数据文件、损失图等，统一存放在 `saved_models/` 根目录下。
- **过程文件**: 所有训练过程中的检查点文件，统一存放在 `saved_models/checkpoints/` 目录下。
### 1.3. 文件名生成规则
1. **构建逻辑路径**: 根据训练参数（模式、范围、类型、版本）确定逻辑路径。
- *示例*: `product/P001_all/mlstm/v2`
2. **生成文件名前缀**: 将逻辑路径中的所有 `/` 替换为 `_`。
- *示例*: `product_P001_all_mlstm_v2`
3. **拼接文件后缀**: 在前缀后加上描述文件类型的后缀。
- `_model.pth`
- `_metadata.json`
- `_loss_curve.png`
- `_checkpoint_best.pth`
- `_checkpoint_epoch_{N}.pth`
#### **完整示例:**
- **最终模型**: `saved_models/product_P001_all_mlstm_v2_model.pth`
- **元数据**: `saved_models/product_P001_all_mlstm_v2_metadata.json`
- **最佳检查点**: `saved_models/checkpoints/product_P001_all_mlstm_v2_checkpoint_best.pth`
- **Epoch 50 检查点**: `saved_models/checkpoints/product_P001_all_mlstm_v2_checkpoint_epoch_50.pth`
---
## 二、 文件读取规则
1. **确定模型元数据**: 根据需求确定要加载的模型的训练模式、范围、类型和版本。
2. **构建文件名前缀**: 按照与保存时相同的逻辑，将元数据拼接成文件名前缀（例如 `product_P001_all_mlstm_v2`）。
3. **定位文件**:
- 要加载最终模型，查找文件: `saved_models/{prefix}_model.pth`。
- 要加载最佳检查点，查找文件: `saved_models/checkpoints/{prefix}_checkpoint_best.pth`。
---
## 三、 数据库存储规则
数据库用于索引，应存储足以重构文件名前缀的关键元数据。
#### **`models` 表结构建议:**
| 字段名 | 类型 | 描述 | 示例 |
| :--- | :--- | :--- | :--- |
| `id` | INTEGER | 主键 | 1 |
| `filename_prefix` | TEXT | **完整文件名前缀，可作为唯一标识** | `product_P001_all_mlstm_v2` |
| `model_identifier`| TEXT | 用于版本控制的标识符 (不含版本) | `product_P001_all_mlstm` |
| `version` | INTEGER | 版本号 | `2` |
| `status` | TEXT | 模型状态 | `completed`, `training`, `failed` |
| `created_at` | TEXT | 创建时间 | `2025-07-21 02:29:00` |
| `metrics_summary`| TEXT | 关键性能指标的JSON字符串 | `{"rmse": 10.5, "r2": 0.89}` |
#### **保存逻辑:**
- 训练完成后，向表中插入一条记录。`filename_prefix` 字段是查找与该次训练相关的所有文件的关键。
---
## 四、 版本记录规则
版本管理依赖于根目录下的 `versions.json` 文件，以实现原子化、线程安全的版本号递增。
- **文件名**: `versions.json`
- **位置**: `saved_models/versions.json`
- **结构**: 一个JSON对象，`key` 是不包含版本号的标识符，`value` 是该标识符下最新的版本号（整数）。
- **Key**: `{prefix_core}_{model_type}` (例如: `product_P001_all_mlstm`)
- **Value**: `Integer`
#### **`versions.json` 示例:**
```json
{
"product_P001_all_mlstm": 2,
"store_S001_P002_transformer": 1
}
```
#### **版本管理流程:**
1. **获取新版本**: 开始训练前，构建 `key`。读取 `versions.json`，找到对应 `key` 的 `value`。新版本号为 `value + 1` (若key不存在，则为 `1`)。
2. **更新版本**: 训练成功后，将新的版本号写回到 `versions.json`。此过程**必须使用文件锁**以防止并发冲突。
调试完成药品预测和店铺预测
544 lines
24 KiB
Python
544 lines
24 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""
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独立训练进程管理器
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使用multiprocessing实现真正的并行训练，避免GIL限制
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"""
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import os
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import sys
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import uuid
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import time
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import json
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import queue
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import multiprocessing as mp
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from multiprocessing import Process, Queue, Manager
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from dataclasses import dataclass, asdict
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from typing import Dict, Any, Optional, Callable
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from threading import Thread, Lock
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from pathlib import Path
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# 添加当前目录到路径
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current_dir = os.path.dirname(os.path.abspath(__file__))
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server_dir = os.path.dirname(current_dir)
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sys.path.append(server_dir)
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from utils.logging_config import setup_api_logging, get_training_logger, log_training_progress
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from utils.file_save import ModelPathManager
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import numpy as np
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def convert_numpy_types(obj):
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"""递归地将字典/列表中的NumPy类型转换为Python原生类型"""
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if isinstance(obj, dict):
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return {k: convert_numpy_types(v) for k, v in obj.items()}
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elif isinstance(obj, list):
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return [convert_numpy_types(i) for i in obj]
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elif isinstance(obj, np.generic):
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return obj.item()
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return obj
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@dataclass
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class TrainingTask:
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"""训练任务数据结构"""
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task_id: str
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product_id: str
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model_type: str
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training_mode: str
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store_id: Optional[str] = None
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aggregation_method: Optional[str] = None # 新增：聚合方式
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product_scope: str = 'all'
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product_ids: Optional[list] = None
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epochs: int = 100
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status: str = "pending" # pending, running, completed, failed
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start_time: Optional[str] = None
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end_time: Optional[str] = None
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progress: float = 0.0
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message: str = ""
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error: Optional[str] = None
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metrics: Optional[Dict[str, Any]] = None
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process_id: Optional[int] = None
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path_info: Optional[Dict[str, Any]] = None # 新增字段
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version: Optional[int] = None # 新增版本字段
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class TrainingWorker:
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"""训练工作进程"""
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def __init__(self, task_queue: Queue, result_queue: Queue, progress_queue: Queue):
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self.task_queue = task_queue
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self.result_queue = result_queue
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self.progress_queue = progress_queue
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def run_training_task(self, task: TrainingTask):
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"""执行训练任务"""
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try:
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# 设置进程级别的日志
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logger = setup_api_logging(log_level="INFO")
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training_logger = get_training_logger(task.task_id, task.model_type, task.product_id)
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# 发送日志到主控制台
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self.progress_queue.put({
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'task_id': task.task_id,
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'log_type': 'info',
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'message': f"🚀 训练进程启动 - PID: {os.getpid()}"
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})
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self.progress_queue.put({
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'task_id': task.task_id,
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'log_type': 'info',
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'message': f"📋 任务参数: {task.model_type} | {task.product_id} | {task.epochs}轮次"
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})
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training_logger.info(f"🚀 训练进程启动 - PID: {os.getpid()}")
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training_logger.info(f"📋 任务参数: {task.model_type} | {task.product_id} | {task.epochs}轮次")
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# 更新任务状态
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task.status = "running"
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task.start_time = time.strftime('%Y-%m-%d %H:%M:%S')
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task.process_id = os.getpid()
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self.result_queue.put(('update', asdict(task)))
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# 模拟训练进度更新
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for epoch in range(1, task.epochs + 1):
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progress = (epoch / task.epochs) * 100
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# 发送进度更新
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self.progress_queue.put({
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'task_id': task.task_id,
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'progress': progress,
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'epoch': epoch,
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'total_epochs': task.epochs,
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'message': f"Epoch {epoch}/{task.epochs}"
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})
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training_logger.info(f"🔄 训练进度: Epoch {epoch}/{task.epochs} ({progress:.1f}%)")
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# 模拟训练时间
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time.sleep(1) # 实际训练中这里会是真正的训练代码
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# 导入真正的训练函数
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try:
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# 添加服务器目录到路径，确保能找到core模块
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server_dir = os.path.dirname(os.path.dirname(__file__))
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if server_dir not in sys.path:
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sys.path.append(server_dir)
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from core.predictor import PharmacyPredictor
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predictor = PharmacyPredictor()
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training_logger.info("🤖 开始调用实际训练器")
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# 发送训练开始日志到主控制台
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self.progress_queue.put({
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'task_id': task.task_id,
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'log_type': 'info',
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'message': f"🤖 开始执行 {task.model_type} 模型训练..."
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})
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# 创建子进程内的进度回调函数
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def progress_callback(progress_data):
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"""子进程内的进度回调，通过队列发送到主进程"""
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try:
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# 添加任务ID到进度数据
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progress_data['task_id'] = task.task_id
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self.progress_queue.put(progress_data)
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except Exception as e:
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training_logger.error(f"进度回调失败: {e}")
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# 执行真正的训练，传递进度回调和路径信息
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metrics = predictor.train_model(
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product_id=task.product_id,
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model_type=task.model_type,
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epochs=task.epochs,
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store_id=task.store_id,
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training_mode=task.training_mode,
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aggregation_method=task.aggregation_method, # 传递聚合方式
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product_scope=task.product_scope, # 传递药品范围
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product_ids=task.product_ids, # 传递药品ID列表
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socketio=None, # 子进程中不能直接使用socketio
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task_id=task.task_id,
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progress_callback=progress_callback, # 传递进度回调函数
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path_info=task.path_info # 传递路径信息
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)
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# 发送训练完成日志到主控制台
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self.progress_queue.put({
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'task_id': task.task_id,
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'log_type': 'success',
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'message': f"✅ {task.model_type} 模型训练完成！"
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})
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if metrics:
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self.progress_queue.put({
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'task_id': task.task_id,
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'log_type': 'info',
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'message': f"📊 训练指标: MSE={metrics.get('mse', 'N/A'):.4f}, RMSE={metrics.get('rmse', 'N/A'):.4f}"
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})
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except ImportError as e:
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training_logger.error(f"❌ 导入训练器失败: {e}")
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# 返回模拟的训练结果用于测试
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metrics = {
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"mse": 0.001,
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"rmse": 0.032,
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"mae": 0.025,
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"r2": 0.95,
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"mape": 2.5,
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"training_time": task.epochs * 2,
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"note": "模拟训练结果（导入失败时的备用方案）"
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}
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training_logger.warning("⚠️ 使用模拟训练结果")
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# 检查训练是否成功
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if metrics:
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# 训练成功
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task.status = "completed"
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task.end_time = time.strftime('%Y-%m-%d %H:%M:%S')
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task.progress = 100.0
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task.metrics = metrics
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task.message = "训练完成"
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training_logger.success(f"✅ 训练任务完成 - 耗时: {task.end_time}")
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training_logger.info(f"📊 训练指标: {metrics}")
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self.result_queue.put(('complete', asdict(task)))
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else:
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# 训练失败（性能不佳）
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# 即使性能不佳，也标记为完成，让用户决定是否使用
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task.status = "completed"
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task.end_time = time.strftime('%Y-%m-%d %H:%M:%S')
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task.metrics = metrics if metrics else {}
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task.message = "训练完成（性能可能不佳）"
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training_logger.warning(f"⚠️ 训练完成，但性能可能不佳 (metrics: {metrics})")
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self.result_queue.put(('complete', asdict(task)))
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except Exception as e:
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error_msg = str(e)
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task.status = "failed"
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task.end_time = time.strftime('%Y-%m-%d %H:%M:%S')
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task.error = error_msg
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task.message = f"训练失败: {error_msg}"
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training_logger.error(f"❌ 训练任务失败: {error_msg}")
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self.result_queue.put(('error', asdict(task)))
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def start(self):
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"""启动工作进程"""
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while True:
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try:
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# 从队列获取任务（超时5秒）
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task_data = self.task_queue.get(timeout=5)
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if task_data is None: # 毒丸，退出信号
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break
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task = TrainingTask(**task_data)
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self.run_training_task(task)
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except queue.Empty:
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continue
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except Exception as e:
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print(f"工作进程错误: {e}")
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continue
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class TrainingProcessManager:
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"""训练进程管理器"""
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def __init__(self, max_workers: int = 2):
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self.max_workers = max_workers
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self.tasks: Dict[str, TrainingTask] = {}
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self.processes: Dict[str, Process] = {}
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self.task_queue = Queue()
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self.result_queue = Queue()
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self.progress_queue = Queue()
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self.running = False
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self.lock = Lock()
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# WebSocket回调
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self.websocket_callback: Optional[Callable] = None
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# 设置日志
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self.logger = setup_api_logging()
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self.path_manager = ModelPathManager() # 实例化
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def start(self):
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"""启动进程管理器"""
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if self.running:
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return
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self.running = True
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self.logger.info(f"🚀 训练进程管理器启动 - 最大工作进程数: {self.max_workers}")
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# 启动工作进程
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for i in range(self.max_workers):
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worker = TrainingWorker(self.task_queue, self.result_queue, self.progress_queue)
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process = Process(target=worker.start, name=f"TrainingWorker-{i}")
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process.start()
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self.processes[f"worker-{i}"] = process
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self.logger.info(f"🔧 工作进程 {i} 启动 - PID: {process.pid}")
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# 启动结果监听线程
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self.result_thread = Thread(target=self._monitor_results, daemon=True)
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self.result_thread.start()
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# 启动进度监听线程
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self.progress_thread = Thread(target=self._monitor_progress, daemon=True)
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self.progress_thread.start()
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def stop(self):
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"""停止进程管理器"""
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if not self.running:
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return
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self.logger.info("🛑 正在停止训练进程管理器...")
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self.running = False
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# 发送停止信号给所有工作进程
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for _ in range(self.max_workers):
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self.task_queue.put(None)
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# 等待所有进程结束
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for name, process in self.processes.items():
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process.join(timeout=10)
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if process.is_alive():
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self.logger.warning(f"⚠️ 强制终止进程: {name}")
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process.terminate()
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self.logger.info("✅ 训练进程管理器已停止")
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def submit_task(self, training_params: Dict[str, Any], path_info: Dict[str, Any]) -> str:
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"""
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提交训练任务
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Args:
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training_params (Dict[str, Any]): 来自API请求的原始参数
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path_info (Dict[str, Any]): 由ModelPathManager生成的路径和版本信息
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"""
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task_id = str(uuid.uuid4())
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task = TrainingTask(
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task_id=task_id,
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product_id=training_params.get('product_id'),
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model_type=training_params.get('model_type'),
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training_mode=training_params.get('training_mode', 'product'),
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store_id=training_params.get('store_id'),
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epochs=training_params.get('epochs', 100),
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aggregation_method=training_params.get('aggregation_method'), # 新增
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product_scope=training_params.get('product_scope', 'all'),
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product_ids=training_params.get('product_ids'),
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path_info=path_info # 存储路径信息
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)
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with self.lock:
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self.tasks[task_id] = task
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# 将任务放入队列
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self.task_queue.put(asdict(task))
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self.logger.info(f"📋 训练任务已提交: {task_id[:8]} | {task.model_type} | {task.product_id}")
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return task_id
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def get_task_status(self, task_id: str) -> Optional[Dict[str, Any]]:
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"""获取任务状态"""
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with self.lock:
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task = self.tasks.get(task_id)
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if task:
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return asdict(task)
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return None
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def get_all_tasks(self) -> Dict[str, Dict[str, Any]]:
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"""获取所有任务状态"""
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with self.lock:
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return {task_id: asdict(task) for task_id, task in self.tasks.items()}
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def cancel_task(self, task_id: str) -> bool:
|
||
"""取消任务（仅对未开始的任务有效）"""
|
||
with self.lock:
|
||
task = self.tasks.get(task_id)
|
||
if task and task.status == "pending":
|
||
task.status = "cancelled"
|
||
task.message = "任务已取消"
|
||
return True
|
||
return False
|
||
|
||
def _monitor_results(self):
|
||
"""监听训练结果"""
|
||
while self.running:
|
||
try:
|
||
result = self.result_queue.get(timeout=1)
|
||
action, task_data = result
|
||
|
||
task_id = task_data['task_id']
|
||
|
||
# 立即对从队列中取出的数据进行类型转换
|
||
serializable_task_data = convert_numpy_types(task_data)
|
||
|
||
with self.lock:
|
||
if task_id in self.tasks:
|
||
task = self.tasks[task_id]
|
||
# 使用转换后的数据更新任务状态
|
||
for key, value in serializable_task_data.items():
|
||
if hasattr(task, key):
|
||
setattr(task, key, value)
|
||
|
||
# 如果任务成功完成，则更新版本文件和任务对象中的版本号
|
||
if action == 'complete':
|
||
# 只有在训练成功（metrics有效）时才保存版本信息
|
||
if task.metrics and task.metrics.get('r2', -1) >= 0:
|
||
if task.path_info:
|
||
identifier = task.path_info.get('identifier')
|
||
version = task.path_info.get('version')
|
||
if identifier and version:
|
||
try:
|
||
self.path_manager.save_version_info(identifier, version)
|
||
self.logger.info(f"✅ 版本信息已更新: identifier={identifier}, version={version}")
|
||
task.version = version # 关键修复：将版本号保存到任务对象中
|
||
except Exception as e:
|
||
self.logger.error(f"❌ 更新版本文件失败: {e}")
|
||
else:
|
||
self.logger.warning(f"⚠️ 任务 {task_id} 训练性能不佳或失败，不保存版本信息。")
|
||
|
||
# WebSocket通知 - 使用已转换的数据
|
||
if self.websocket_callback:
|
||
try:
|
||
if action == 'complete':
|
||
# 从任务信息中获取版本号
|
||
version = None
|
||
with self.lock:
|
||
task = self.tasks.get(task_id)
|
||
if task and task.path_info:
|
||
version = task.path_info.get('version')
|
||
|
||
# 训练完成 - 发送完成状态
|
||
self.websocket_callback('training_update', {
|
||
'task_id': task_id,
|
||
'action': 'completed',
|
||
'status': 'completed',
|
||
'progress': 100,
|
||
'message': serializable_task_data.get('message', '训练完成'),
|
||
'metrics': serializable_task_data.get('metrics'),
|
||
'end_time': serializable_task_data.get('end_time'),
|
||
'product_id': serializable_task_data.get('product_id'),
|
||
'model_type': serializable_task_data.get('model_type'),
|
||
'version': version, # 添加版本号
|
||
'product_scope': serializable_task_data.get('product_scope'),
|
||
'product_ids': serializable_task_data.get('product_ids')
|
||
})
|
||
# 额外发送一个完成事件，确保前端能收到
|
||
self.websocket_callback('training_completed', {
|
||
'task_id': task_id,
|
||
'status': 'completed',
|
||
'progress': 100,
|
||
'message': serializable_task_data.get('message', '训练完成'),
|
||
'metrics': serializable_task_data.get('metrics'),
|
||
'product_id': serializable_task_data.get('product_id'),
|
||
'model_type': serializable_task_data.get('model_type'),
|
||
'version': version, # 添加版本号
|
||
'product_scope': serializable_task_data.get('product_scope'),
|
||
'product_ids': serializable_task_data.get('product_ids')
|
||
})
|
||
elif action == 'error':
|
||
# 训练失败
|
||
self.websocket_callback('training_update', {
|
||
'task_id': task_id,
|
||
'action': 'failed',
|
||
'status': 'failed',
|
||
'progress': 0,
|
||
'message': serializable_task_data.get('message', '训练失败'),
|
||
'error': serializable_task_data.get('error'),
|
||
'product_id': serializable_task_data.get('product_id'),
|
||
'model_type': serializable_task_data.get('model_type'),
|
||
'product_scope': serializable_task_data.get('product_scope'),
|
||
'product_ids': serializable_task_data.get('product_ids')
|
||
})
|
||
else:
|
||
# 状态更新
|
||
self.websocket_callback('training_update', {
|
||
'task_id': task_id,
|
||
'action': action,
|
||
'status': serializable_task_data.get('status'),
|
||
'progress': serializable_task_data.get('progress', 0),
|
||
'message': serializable_task_data.get('message', ''),
|
||
'metrics': serializable_task_data.get('metrics'),
|
||
'product_id': serializable_task_data.get('product_id'),
|
||
'model_type': serializable_task_data.get('model_type'),
|
||
'product_scope': serializable_task_data.get('product_scope'),
|
||
'product_ids': serializable_task_data.get('product_ids')
|
||
})
|
||
except Exception as e:
|
||
self.logger.error(f"WebSocket通知失败: {e}")
|
||
|
||
except queue.Empty:
|
||
continue
|
||
except Exception as e:
|
||
self.logger.error(f"结果监听错误: {e}")
|
||
|
||
def _monitor_progress(self):
|
||
"""监听训练进度"""
|
||
while self.running:
|
||
try:
|
||
progress_data = self.progress_queue.get(timeout=1)
|
||
|
||
task_id = progress_data['task_id']
|
||
|
||
# 处理日志消息，显示到主控制台
|
||
if 'log_type' in progress_data:
|
||
log_type = progress_data['log_type']
|
||
message = progress_data['message']
|
||
task_short_id = task_id[:8]
|
||
|
||
if log_type == 'info':
|
||
print(f"[{task_short_id}] {message}", flush=True)
|
||
self.logger.info(f"[{task_short_id}] {message}")
|
||
elif log_type == 'success':
|
||
print(f"[{task_short_id}] {message}", flush=True)
|
||
self.logger.success(f"[{task_short_id}] {message}")
|
||
|
||
# 如果是训练完成的成功消息，发送WebSocket通知
|
||
if "训练完成" in message:
|
||
if self.websocket_callback:
|
||
try:
|
||
self.websocket_callback('training_progress', {
|
||
'task_id': task_id,
|
||
'progress': 100,
|
||
'message': message,
|
||
'log_type': 'success',
|
||
'timestamp': time.time()
|
||
})
|
||
except Exception as e:
|
||
self.logger.error(f"成功消息WebSocket通知失败: {e}")
|
||
|
||
elif log_type == 'error':
|
||
print(f"[{task_short_id}] {message}", flush=True)
|
||
self.logger.error(f"[{task_short_id}] {message}")
|
||
elif log_type == 'warning':
|
||
print(f"[{task_short_id}] {message}", flush=True)
|
||
self.logger.warning(f"[{task_short_id}] {message}")
|
||
|
||
# 更新任务进度（只处理包含progress的消息）
|
||
if 'progress' in progress_data:
|
||
with self.lock:
|
||
if task_id in self.tasks:
|
||
self.tasks[task_id].progress = progress_data['progress']
|
||
self.tasks[task_id].message = progress_data.get('message', '')
|
||
|
||
# WebSocket通知进度更新
|
||
if self.websocket_callback and 'progress' in progress_data:
|
||
try:
|
||
# 在发送前确保所有数据类型都是JSON可序列化的
|
||
serializable_data = convert_numpy_types(progress_data)
|
||
self.websocket_callback('training_progress', serializable_data)
|
||
except Exception as e:
|
||
self.logger.error(f"进度WebSocket通知失败: {e}")
|
||
|
||
except queue.Empty:
|
||
continue
|
||
except Exception as e:
|
||
self.logger.error(f"进度监听错误: {e}")
|
||
|
||
def set_websocket_callback(self, callback: Callable):
|
||
"""设置WebSocket回调函数"""
|
||
self.websocket_callback = callback
|
||
|
||
# 全局进程管理器实例
|
||
training_manager = TrainingProcessManager()
|
||
|
||
def get_training_manager() -> TrainingProcessManager:
|
||
"""获取训练进程管理器实例"""
|
||
return training_manager |