835f0786b2
- 新增 disabled graph service，统一图服务不可用时的行为 - 调整知识模块初始化与管理器，支持降级运行 - 更新图相关路由与工具调用逻辑，避免连接失败中断 - 同步部署文档与环境模板说明
49 lines
1.5 KiB
Python
49 lines
1.5 KiB
Python
from contextlib import asynccontextmanager
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from fastapi import FastAPI
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from src.services.task_service import tasker
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from src.services.mcp_service import init_mcp_servers
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from src.services.run_queue_service import close_queue_clients, get_redis_client
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from src.storage.postgres.manager import pg_manager
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from src.knowledge import knowledge_base
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from src.utils import logger
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@asynccontextmanager
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async def lifespan(app: FastAPI):
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"""FastAPI lifespan事件管理器"""
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# 初始化数据库连接
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try:
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pg_manager.initialize()
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await pg_manager.create_business_tables()
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await pg_manager.ensure_business_schema()
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await pg_manager.ensure_knowledge_schema()
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except Exception as e:
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logger.error(f"Failed to initialize database during startup: {e}")
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# 初始化 MCP 服务器配置
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try:
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await init_mcp_servers()
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except Exception as e:
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logger.error(f"Failed to initialize MCP servers during startup: {e}")
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# 初始化知识库管理器
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try:
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await knowledge_base.initialize()
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except Exception as e:
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logger.error(f"Failed to initialize knowledge base manager: {e}")
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# 预热 Redis（run 队列）
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try:
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redis = await get_redis_client()
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await redis.ping()
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except Exception as e:
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logger.warning(f"Run queue redis unavailable on startup: {e}")
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await tasker.start()
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yield
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await tasker.shutdown()
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await close_queue_clients()
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await pg_manager.close()
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