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fix: 性能优化、前端转写器配置、任务进度丢失及 MLX Whisper 回退问题修复
### 性能优化 - 后端任务执行从串行锁改为 ThreadPoolExecutor 并发执行(默认3线程) - 添加 GZipMiddleware 响应压缩 + Nginx gzip 配置 - 数据库连接池参数优化(pool_size=10, max_overflow=20) - 视频帧提取并行化(ThreadPoolExecutor) - LLM 重试配置缓存到实例,避免每次请求读 env var - 前端路由级代码拆分(React.lazy + Suspense) - Vite manualChunks 拆分 markdown/markmap/vendor - MarkdownViewer 用 React.memo + useMemo 减少不必要渲染 - NoteHistory Fuse.js 实例 useMemo 缓存 - useTaskPolling 无待处理任务时跳过轮询 - 移除 antd 依赖(NoteForm Alert、modelForm Tag),改用 shadcn/ui ### 前端转写器配置(新功能) - 新增 TranscriberConfigManager(JSON 文件存储,替代环境变量) - 新增 GET/POST /transcriber_config API 端点 - 新增 GET /transcriber_models_status 模型下载状态查询 - 新增 POST /transcriber_download 后台模型下载触发 - 前端转写器设置页面:引擎选择、模型大小选择、模型下载管理 - deploy_status 端点同步从配置文件读取 ### Bug 修复 - 修复任务进行中切换页面后进度丢失:Home.tsx status 派生逻辑补全中间状态 - 修复 MLX Whisper 静默回退 fast-whisper:移除环境变量门控,macOS 下自动尝试导入 - MLX Whisper 不可用时抛出 RuntimeError 而非静默回退 - 前端展示 MLX Whisper 可用性状态,不可用时禁用保存 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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@@ -1,14 +1,23 @@
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import threading
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import os
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from concurrent.futures import ThreadPoolExecutor, Future
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from typing import Any, Callable
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class SerialTaskExecutor:
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def __init__(self):
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self._lock = threading.Lock()
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class ConcurrentTaskExecutor:
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"""使用线程池并发执行任务,替代原来的串行锁。"""
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def __init__(self, max_workers: int | None = None):
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self._max_workers = max_workers or int(os.getenv("TASK_MAX_WORKERS", "3"))
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self._pool = ThreadPoolExecutor(max_workers=self._max_workers)
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def run(self, fn: Callable[..., Any], *args: Any, **kwargs: Any) -> Any:
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with self._lock:
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return fn(*args, **kwargs)
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future: Future = self._pool.submit(fn, *args, **kwargs)
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return future.result()
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def shutdown(self, wait: bool = True):
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self._pool.shutdown(wait=wait)
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task_serial_executor = SerialTaskExecutor()
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# 保持向后兼容的导出名
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SerialTaskExecutor = ConcurrentTaskExecutor
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task_serial_executor = ConcurrentTaskExecutor()
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