Graceful exit has not taken effect

[anson09]

Version:
system: macOS 14.4.1
node: 20.12.2
"egg": "^3.17.5",
"egg-cluster": "^2.2.1",

Minimal Code Example:

npx egg-init --type simple

// router.js
module.exports = app => {
  const { router, controller } = app;
  router.get('/', controller.home.index);

// add a router has a 3 seconds aysnc job
  router.get("/test", async (ctx) => {
    await new Promise((resolve) => {
      setTimeout(() => {
        resolve(1);
      }, 3000);
  });
  ctx.body = "test";
})

};

// index.js
const startCluster = require('egg-cluster').startCluster;

startCluster({
  baseDir: __dirname,
  workers: 2,
  port: 7001,
});

1. start command: node index.js
2. find node index.js pid in htop
3. curl -v http://127.0.0.1:7001/api/v1/test
4. send SIGTERM signal to pid filter in step 2

Expected: The request in step 3 has a successful response, EGG server closes after handling in transit connection.

Actually: the connection is closed immediately after the SIGTERM signal send.