350 lines
7.5 KiB
Plaintext
350 lines
7.5 KiB
Plaintext
# PromptForge 服务器稳定性优化方案
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## 📊 当前服务器资源分析
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### 硬件配置
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- **CPU**: 2 核心
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- **内存**: 3.6GB 总内存，1.9GB 可用
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- **磁盘**: 89GB 总容量，62GB 可用 (28% 使用率)
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- **负载**: 0.24 (低负载，运行良好)
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### 当前应用资源使用
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- **Next.js 服务**: 323MB 内存 (8.5%)
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- **总内存使用**: 1.4GB (38.9%)
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- **可用内存**: 1.9GB (充足)
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## 🎯 稳定性优化方案
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### 方案一：PM2 进程管理 (推荐)
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#### 1. 安装和配置 PM2
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```bash
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# 安装 PM2
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npm install -g pm2
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# 创建 PM2 配置文件
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cat > ecosystem.config.js << 'EOF'
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module.exports = {
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apps: [{
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name: 'promptforge',
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script: 'npx',
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args: 'next@14.0.4 dev -H 0.0.0.0 -p 3000',
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cwd: '/home/renjianbo/aiapply',
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instances: 1, // 单实例，适合小服务器
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autorestart: true,
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watch: false,
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max_memory_restart: '800M', // 内存超过800MB自动重启
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min_uptime: '10s',
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max_restarts: 10,
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restart_delay: 4000,
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env: {
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NODE_ENV: 'production',
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PORT: 3000
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},
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error_file: '/home/renjianbo/aiapply/logs/err.log',
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out_file: '/home/renjianbo/aiapply/logs/out.log',
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log_file: '/home/renjianbo/aiapply/logs/combined.log',
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time: true
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}]
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}
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EOF
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# 创建日志目录
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mkdir -p logs
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# 启动服务
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pm2 start ecosystem.config.js
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# 设置开机自启动
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pm2 startup
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pm2 save
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```
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#### 2. PM2 监控和管理
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```bash
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# 查看服务状态
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pm2 status
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# 查看实时日志
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pm2 logs promptforge
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# 重启服务
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pm2 restart promptforge
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# 停止服务
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pm2 stop promptforge
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# 监控资源使用
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pm2 monit
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```
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### 方案二：系统级优化
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#### 1. 系统资源限制
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```bash
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# 创建系统限制配置
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sudo tee /etc/security/limits.d/promptforge.conf << 'EOF'
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# PromptForge 用户资源限制
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renjianbo soft nofile 65536
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renjianbo hard nofile 65536
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renjianbo soft nproc 32768
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renjianbo hard nproc 32768
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EOF
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# 应用限制
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ulimit -n 65536
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ulimit -u 32768
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```
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#### 2. 内存优化
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```bash
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# 调整系统内存参数
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sudo tee -a /etc/sysctl.conf << 'EOF'
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# 内存优化
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vm.swappiness = 10
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vm.dirty_ratio = 15
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vm.dirty_background_ratio = 5
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vm.overcommit_memory = 1
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EOF
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# 应用配置
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sudo sysctl -p
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```
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### 方案三：Nginx 反向代理优化
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#### 1. 创建优化的 Nginx 配置
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```bash
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# 创建 Nginx 配置文件
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sudo tee /etc/nginx/conf.d/promptforge.conf << 'EOF'
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upstream promptforge_backend {
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server 127.0.0.1:3000;
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keepalive 32;
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}
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server {
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listen 80;
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server_name 101.43.95.130;
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# 重定向到 HTTPS
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return 301 https://$server_name$request_uri;
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}
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server {
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listen 443 ssl http2;
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server_name 101.43.95.130;
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# SSL 配置
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ssl_certificate /path/to/your/cert.pem;
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ssl_certificate_key /path/to/your/key.pem;
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ssl_protocols TLSv1.2 TLSv1.3;
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ssl_ciphers ECDHE-RSA-AES256-GCM-SHA512:DHE-RSA-AES256-GCM-SHA512;
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# 性能优化
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client_max_body_size 10M;
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client_body_timeout 60s;
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client_header_timeout 60s;
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keepalive_timeout 65s;
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send_timeout 60s;
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# 压缩配置
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gzip on;
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gzip_vary on;
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gzip_min_length 1024;
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gzip_types text/plain text/css text/xml text/javascript application/javascript application/xml+rss application/json;
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# 缓存配置
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location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg)$ {
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expires 1y;
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add_header Cache-Control "public, immutable";
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}
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# 反向代理
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location / {
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proxy_pass http://promptforge_backend;
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proxy_http_version 1.1;
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proxy_set_header Upgrade $http_upgrade;
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proxy_set_header Connection 'upgrade';
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proxy_set_header Host $host;
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proxy_set_header X-Real-IP $remote_addr;
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proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
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proxy_set_header X-Forwarded-Proto $scheme;
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proxy_cache_bypass $http_upgrade;
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# 超时设置
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proxy_connect_timeout 60s;
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proxy_send_timeout 60s;
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proxy_read_timeout 60s;
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# 缓冲设置
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proxy_buffering on;
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proxy_buffer_size 4k;
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proxy_buffers 8 4k;
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}
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}
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EOF
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```
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### 方案四：监控和告警
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#### 1. 创建监控脚本
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```bash
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# 创建监控脚本
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cat > monitor.sh << 'EOF'
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#!/bin/bash
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# 监控脚本
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LOG_FILE="/home/renjianbo/aiapply/logs/monitor.log"
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DATE=$(date '+%Y-%m-%d %H:%M:%S')
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# 检查服务状态
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if ! netstat -tlnp | grep -q :3000; then
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echo "[$DATE] 服务未运行，尝试重启..." >> $LOG_FILE
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cd /home/renjianbo/aiapply
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pm2 restart promptforge
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fi
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# 检查内存使用
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MEMORY_USAGE=$(free | grep Mem | awk '{printf "%.1f", $3/$2 * 100.0}')
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if (( $(echo "$MEMORY_USAGE > 80" | bc -l) )); then
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echo "[$DATE] 内存使用率过高: ${MEMORY_USAGE}%" >> $LOG_FILE
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fi
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# 检查磁盘空间
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DISK_USAGE=$(df / | tail -1 | awk '{print $5}' | sed 's/%//')
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if [ $DISK_USAGE -gt 80 ]; then
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echo "[$DATE] 磁盘使用率过高: ${DISK_USAGE}%" >> $LOG_FILE
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fi
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echo "[$DATE] 监控检查完成" >> $LOG_FILE
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EOF
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chmod +x monitor.sh
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# 添加到 crontab (每5分钟检查一次)
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(crontab -l 2>/dev/null; echo "*/5 * * * * /home/renjianbo/aiapply/monitor.sh") | crontab -
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```
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### 方案五：并发访问优化
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#### 1. 连接池配置
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```bash
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# 创建环境变量配置
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cat >> .env.local << 'EOF'
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# 数据库连接池
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DATABASE_POOL_SIZE=5
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DATABASE_POOL_TIMEOUT=20000
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# 应用配置
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NEXT_PUBLIC_MAX_CONCURRENT_REQUESTS=10
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NEXT_PUBLIC_REQUEST_TIMEOUT=30000
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EOF
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```
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#### 2. 系统连接优化
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```bash
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# 调整系统连接参数
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sudo tee -a /etc/sysctl.conf << 'EOF'
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# 网络连接优化
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net.core.somaxconn = 65535
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net.core.netdev_max_backlog = 5000
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net.ipv4.tcp_max_syn_backlog = 65535
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net.ipv4.tcp_keepalive_time = 600
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net.ipv4.tcp_keepalive_intvl = 60
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net.ipv4.tcp_keepalive_probes = 3
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EOF
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sudo sysctl -p
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```
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## 📈 预期性能提升
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### 并发访问能力
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- **当前**: 5-10 并发用户
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- **优化后**: 15-25 并发用户
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- **响应时间**: 减少 30-50%
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### 稳定性提升
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- **自动重启**: 进程异常时自动恢复
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- **内存监控**: 防止内存泄漏
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- **负载均衡**: Nginx 反向代理
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- **监控告警**: 实时状态监控
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## 🚀 实施步骤
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### 第一步：PM2 部署 (立即实施)
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```bash
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# 停止当前服务
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pkill -f "next dev"
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# 安装 PM2
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npm install -g pm2
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# 启动 PM2 服务
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pm2 start ecosystem.config.js
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pm2 startup
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pm2 save
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```
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### 第二步：系统优化 (可选)
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```bash
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# 应用系统限制
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sudo tee /etc/security/limits.d/promptforge.conf << 'EOF'
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renjianbo soft nofile 65536
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renjianbo hard nofile 65536
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EOF
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# 调整内存参数
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sudo tee -a /etc/sysctl.conf << 'EOF'
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vm.swappiness = 10
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net.core.somaxconn = 65535
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EOF
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sudo sysctl -p
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```
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### 第三步：监控部署 (推荐)
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```bash
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# 创建监控脚本
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./monitor.sh
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# 设置定时监控
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(crontab -l 2>/dev/null; echo "*/5 * * * * /home/renjianbo/aiapply/monitor.sh") | crontab -
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```
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## ⚠️ 注意事项
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1. **内存限制**: 当前服务器内存有限，避免过度优化
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2. **CPU 核心**: 2核心服务器，建议单实例运行
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3. **磁盘空间**: 定期清理日志文件
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4. **网络带宽**: 监控带宽使用情况
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5. **备份策略**: 定期备份重要数据
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## 📊 监控指标
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### 关键指标
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- **内存使用率**: < 80%
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- **CPU 使用率**: < 70%
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- **响应时间**: < 2秒
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- **并发连接**: < 25
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- **错误率**: < 1%
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### 监控命令
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```bash
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# 实时监控
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pm2 monit
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# 查看日志
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pm2 logs promptforge --lines 100
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# 系统资源
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htop
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iostat -x 1
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```
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---
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**创建时间**: $(date)
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**服务器配置**: 2核3.6GB内存
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**预期并发**: 15-25用户
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**优化目标**: 稳定性 + 性能
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