提问人:Louise Yousre 提问时间:5/15/2023 最后编辑:Louise Yousre 更新时间:5/15/2023 访问量:19
集群模块 Worker “error” Event 的作用是什么?
What's the function of Cluster module Worker "error" Event?
问:
我正在尝试更深入地研究 NodeJS,所以我正在发现它的 API,我现在正在使用 Cluster 模块!但我没有得到 Worker 的“错误”事件的功能。
import http from "node:http";
import cluster from "node:cluster";
import os from "node:os";
const numCPUs = os.cpus().length;
if (cluster.isPrimary) {
for (let i = 0; i < numCPUs; i++) {
const worker = cluster.fork();
worker.on("error", (error) => {
console.log(`Worker ${i} crashed!`);
});
}
} else {
const server = http.createServer((req, res) => {
if (req.url === "/error") {
throw new Error("Crash Route Opened");
}
res.writeHead(200);
res.end("Hello, world!");
});
server.listen(8000);
}
我预计当我点击路由时会打印消息,但打印了以下内容Worker ${i} crashed!
/error
file:///C:/Users/Louise%20Yousre/Desktop/clusters-learning/index.js:19
throw new Error("Crash Route Opened");
^
Error: Crash Route Opened
at Server.<anonymous> (file:///C:/Users/Louise%20Yousre/Desktop/clusters-learning/index.js:19:13)
at Server.emit (node:events:511:28)
at parserOnIncoming (node:_http_server:1109:12)
at HTTPParser.parserOnHeadersComplete (node:_http_common:119:17)
Node.js v20.1.0
答: 暂无答案
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