Node.js

node.js上线部署

ssh 用户名@地址（免密登陆）

scp course-map.json root@IP地址:/路径

scp -r advance / root@101.200.185.250:/opt/node-publish/www/static

npm install --production 只管上线环境

Unix domain Socket 走IPC

服务器集群

• Nginx -> PM2 -> Varnish -> Java -> DB(read/wirte) -> BACK
• PM 2 -> CDN
• Nagios监测
• Keepalived heartbeat心跳检测: Varnish -> Java

经典代码：

• 职责链模式：router.get(/^(\d+)_(\d+)/, cModel.A, cModel.B, cModel.C)

• var shaObj = new jsSHA(string, 'TEXT'); var hash = shaObj.getHash('SHA-1', 'HEX');

• var forPound = req.headers['x-forwarded-for-pound'];

• 回调：callback(new Error('Fail to parse http response to json, url:' + reqOptions.url), res.body);

• 中间件：require('./middleware')(app);

源码

• git clone git@github.com:nodejs/node.git
• cd ./node
• ./configure && make
• make install
• make test

node.js启动:

• src/node.h
• src/node.cc Start()
• lib/internal/bootstrap_node.js

node.js测试文件

• test/parallel/test-*.js

pr规范：

• branch name: fix/gh-{number: issue id}

• commit message: "module name: description"

• 开启debug模式 node --debug app.js

• node-inspector (opens new window)

PM2 (opens new window)

# 进程管理
pm2 start server.js --name my-server
pm2 list # pm2 ls
pm2 restart my-server
pm2 stop my-server
pm2 delete my-server
# 负载均衡
pm2 start server.js -i 0
pm2 start server.js -i max
# 日志管理
pm2 logs
pm2 logs my-server
# 性能监控
pm2 monit