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AIEC-server/docs/connection-reset-fix.md
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AIEC-server/docs/connection-reset-fix.md
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# 连接重置问题解决方案
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## 问题描述
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- OPTIONS 请求成功(200 OK)
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- POST 请求失败(ERR_CONNECTION_RESET)
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这表明 CORS 配置已经生效,但是实际处理请求时服务崩溃了。
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## 可能的原因和解决方案
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### 1. 检查 Neo4j 数据库
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graph-rag-agent 需要 Neo4j 数据库运行:
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```bash
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# 检查 Neo4j 是否运行
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sudo systemctl status neo4j
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# 如果未运行,启动它
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sudo systemctl start neo4j
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# 或使用 Docker
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docker ps | grep neo4j
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```
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### 2. 检查 graph-rag-agent 的配置
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确保配置文件存在:
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```bash
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cd ~/graph-rag-agent
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ls -la config/
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# 应该有 settings.py 或类似的配置文件
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```
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### 3. 查看 graph-rag-agent 的错误日志
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在运行 graph-rag-agent 的终端中查看错误信息。常见错误:
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- **Neo4j 连接失败**:
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```
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neo4j.exceptions.ServiceUnavailable: Unable to connect to localhost:7687
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```
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解决:启动 Neo4j 数据库
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- **缺少 embedding 模型**:
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```
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FileNotFoundError: [Errno 2] No such file or directory: 'path/to/embeddings'
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```
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解决:确保已下载并配置了 embedding 模型
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- **Agent 初始化失败**:
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```
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KeyError: 'naive_rag_agent'
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```
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解决:检查 agent 配置和初始化
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### 4. 简化测试
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创建一个最小测试来确认服务基本功能:
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```bash
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# 测试根路径
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curl http://localhost:8000/
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# 测试文档
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curl http://localhost:8000/docs
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```
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### 5. 环境变量检查
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graph-rag-agent 可能需要某些环境变量:
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```bash
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# 检查是否需要 OpenAI API Key
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export OPENAI_API_KEY="your-key-here"
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# 检查 Neo4j 连接配置
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export NEO4J_URI="bolt://localhost:7687"
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export NEO4J_USER="neo4j"
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export NEO4J_PASSWORD="your-password"
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```
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### 6. 依赖检查
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确保所有依赖都已安装:
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```bash
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cd ~/graph-rag-agent
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pip install -r requirements.txt
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```
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### 7. 使用调试模式启动
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```bash
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cd ~/graph-rag-agent
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python -m uvicorn server.main:app --reload --log-level debug
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```
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## 临时解决方案
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如果上述方法都不能解决问题,可以:
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1. **使用模拟响应**:在前端创建一个模拟的响应来测试前端功能
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2. **检查 graph-rag-agent 的 README**:查看是否有特殊的启动要求
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3. **查看 graph-rag-agent 的测试代码**:了解正确的使用方式
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## 测试命令
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使用提供的测试脚本:
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```bash
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cd ~/yundage-backserver-test
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./test-curl.sh
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```
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观察输出,特别是错误信息。
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