Socket.IO集群部署时HTTP运行正常、HTTPS无法生效问题咨询

数据老陈

2026-9-23

问题根因

Worker进程重复创建HTTPS服务实例是核心错误。@socket.io/sticky的工作逻辑为：主进程负责监听端口、完成TLS握手、执行 sticky 会话转发，Worker进程仅需挂载Socket.IO实例即可，无需再独立创建HTTPS服务、也不需要监听端口。

修复后代码

const cluster = require("cluster");
const https = require("https");
var fs = require("fs");
const { Server } = require("socket.io");
const numCPUs = require("os").cpus().length;
const { setupMaster, setupWorker } = require("@socket.io/sticky");
const { createAdapter, setupPrimary } = require("@socket.io/cluster-adapter");
const sslOptions = {
  key: fs.readFileSync("security/cert.key"),
  cert: fs.readFileSync("security/cert.pem")
};
const options = { cors: true, origins: "*" };
if (cluster.isMaster) {
  console.log(`Master ${process.pid} is running`);

  const httpServer = https.createServer(sslOptions);

  // setup sticky sessions
  setupMaster(httpServer, {
    loadBalancingMethod: "least-connection"
  });

  setupPrimary();

  cluster.setupPrimary({
    serialization: "advanced"
  });

  httpServer.listen(8000);

  for (let i = 0; i < numCPUs; i++) {
    cluster.fork();
  }

  cluster.on("exit", (worker) => {
    console.log(`Worker ${worker.process.pid} died`);
    cluster.fork();
  });
} else {
  console.log(`Worker ${process.pid} started`);

  // 移除Worker进程里的HTTPS服务创建逻辑
  const io = new Server(options);

  // use the cluster adapter
  io.adapter(createAdapter());

  // setup connection with the primary process
  setupWorker(io);

  io.on("connection", (socket) => {
    console.log("connected" + process.pid);
    io.emit("data", "connected to worker: " + cluster.worker.id);
  });
}