222 lines
6.1 KiB
Python
222 lines
6.1 KiB
Python
# -*- coding: utf-8 -*-
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"""
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Gunicorn 配置文件 - Eventlet 极限高并发配置（110.42.32.207 专用）
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服务器配置: 48核心 128GB 内存
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目标并发: 160,000+ 并发连接
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使用方式:
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# 设置环境变量后启动
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export REDIS_HOST=127.0.0.1
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gunicorn -c gunicorn_eventlet_config.py app:app
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# 或者一行命令
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REDIS_HOST=127.0.0.1 gunicorn -c gunicorn_eventlet_config.py app:app
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架构说明:
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- 16 个 Eventlet Worker（每个占用 1 核心，预留 32 核给系统/Redis/MySQL）
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- 每个 Worker 处理 10000+ 并发连接（协程异步 I/O）
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- Redis 消息队列同步跨 Worker 的 WebSocket 消息
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- 总并发能力: 16 × 10000 = 160,000+ 连接
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"""
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import os
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# ==================== 环境变量设置 ====================
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# 解决 eventlet greendns 无法解析 localhost 的问题
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os.environ.setdefault('REDIS_HOST', '127.0.0.1')
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# ==================== 基础配置 ====================
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# 绑定地址和端口
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bind = '0.0.0.0:5001'
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# Worker 进程数
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# 48 核心机器: 16 Workers（预留资源给 Redis/MySQL/系统）
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# 每个 Eventlet Worker 是单线程但支持协程并发
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workers = 16
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# Worker 类型 - eventlet 异步模式
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worker_class = 'eventlet'
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# 每个 worker 的最大并发连接数
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# 16 Workers × 10000 = 160,000 并发连接能力
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worker_connections = 10000
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# 每个 worker 处理的最大请求数（防止内存泄漏）
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# 128GB 内存充足，可以设置较大值
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max_requests = 100000
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max_requests_jitter = 10000
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# ==================== 超时配置 ====================
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# Worker 超时时间（秒）
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# WebSocket 长连接需要较长超时
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timeout = 600
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# 优雅关闭超时时间（秒）
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# 16 个 Worker 需要更长的优雅关闭时间
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graceful_timeout = 120
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# 保持连接超时时间（秒）
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keepalive = 120
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# ==================== 内存优化 ====================
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# 128GB 内存，可以适当增加缓冲区
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# 限制请求行大小（防止恶意请求）
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limit_request_line = 8190
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# 限制请求头数量
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limit_request_fields = 200
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# 限制请求头大小
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limit_request_field_size = 8190
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# ==================== 日志配置 ====================
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accesslog = '-'
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errorlog = '-'
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loglevel = 'info'
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capture_output = True
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access_log_format = '%(h)s %(l)s %(u)s %(t)s "%(r)s" %(s)s %(b)s "%(f)s" "%(a)s" %(D)sμs'
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# ==================== 进程管理 ====================
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daemon = False
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pidfile = '/tmp/gunicorn_eventlet.pid'
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proc_name = 'vf_react_eventlet'
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# 不预加载应用
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preload_app = False
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# ==================== Hook 函数 ====================
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def on_starting(server):
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"""服务器启动时调用"""
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workers = server.app.cfg.workers
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connections = server.app.cfg.worker_connections
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total = workers * connections
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print("=" * 70)
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print("🚀 Gunicorn + Eventlet 极限高并发服务器正在启动...")
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print("=" * 70)
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print(f" 服务器配置: 48核心 128GB 内存")
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print(f" Workers: {workers} 个 Eventlet 协程进程")
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print(f" 每 Worker 连接数: {connections:,}")
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print(f" 总并发能力: {total:,} 连接")
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print("-" * 70)
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print(f" Bind: {server.app.cfg.bind}")
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print(f" Max Requests: {server.app.cfg.max_requests:,}")
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print(f" Timeout: {server.app.cfg.timeout}s")
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print("-" * 70)
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print(" 多进程架构:")
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print(" - Redis db=0: 微信登录状态（跨 Worker 共享）")
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print(" - Redis db=1: Flask Session（跨 Worker 共享）")
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print(" - Redis db=2: SocketIO 消息队列（跨 Worker 同步）")
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print("=" * 70)
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def when_ready(server):
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"""服务准备就绪时调用"""
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workers = server.app.cfg.workers
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connections = server.app.cfg.worker_connections
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total = workers * connections
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print("=" * 70)
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print(f"✅ Gunicorn + Eventlet 服务准备就绪!")
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print(f" {workers} 个 Worker 已启动")
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print(f" 总并发能力: {total:,} 连接")
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print(f" WebSocket + HTTP API 混合高并发已启用")
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print("=" * 70)
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def post_worker_init(worker):
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"""Worker 初始化完成后调用"""
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print(f"✅ Eventlet Worker {worker.pid} 已初始化 (10,000 并发连接就绪)")
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def worker_abort(worker):
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"""Worker 收到 SIGABRT 信号时调用（超时）"""
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print(f"⚠️ Worker {worker.pid} 超时被终止，正在重启...")
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def on_exit(server):
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"""服务器退出时调用"""
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print("🛑 Gunicorn + Eventlet 服务器已关闭")
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# ==================== systemd 服务配置示例 ====================
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"""
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保存为 /etc/systemd/system/vf_eventlet.service:
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[Unit]
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Description=VF React Flask (Eventlet 160K Concurrent) - 48 Core 128GB
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After=network.target redis.service mysql.service
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[Service]
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User=root
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Group=root
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WorkingDirectory=/path/to/vf_react
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Environment="PATH=/path/to/venv/bin"
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Environment="REDIS_HOST=127.0.0.1"
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# 系统资源限制（48核128GB专用服务器）
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LimitNOFILE=200000
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LimitNPROC=65535
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ExecStart=/path/to/venv/bin/gunicorn -c gunicorn_eventlet_config.py app:app
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ExecReload=/bin/kill -s HUP $MAINPID
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Restart=always
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RestartSec=5
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TimeoutStopSec=120
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[Install]
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WantedBy=multi-user.target
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启用服务:
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sudo systemctl daemon-reload
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sudo systemctl enable vf_eventlet
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sudo systemctl start vf_eventlet
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sudo systemctl status vf_eventlet
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查看日志:
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sudo journalctl -u vf_eventlet -f
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============================================================
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系统优化（在 110.42.32.207 上执行）:
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# 1. 增加文件描述符限制
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echo "* soft nofile 200000" >> /etc/security/limits.conf
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echo "* hard nofile 200000" >> /etc/security/limits.conf
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# 2. 内核参数优化（/etc/sysctl.conf）
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cat >> /etc/sysctl.conf << 'EOF'
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# TCP 连接优化
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net.core.somaxconn = 65535
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net.core.netdev_max_backlog = 65535
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net.ipv4.tcp_max_syn_backlog = 65535
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# 端口范围
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net.ipv4.ip_local_port_range = 1024 65535
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# TIME_WAIT 优化
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net.ipv4.tcp_tw_reuse = 1
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net.ipv4.tcp_fin_timeout = 15
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# 内存优化（128GB 内存）
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net.core.rmem_max = 16777216
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net.core.wmem_max = 16777216
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net.ipv4.tcp_rmem = 4096 87380 16777216
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net.ipv4.tcp_wmem = 4096 65536 16777216
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# 连接跟踪（防火墙）
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net.netfilter.nf_conntrack_max = 1000000
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EOF
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# 3. 应用内核参数
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sysctl -p
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============================================================
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"""
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