Cluster can not kill worker if work's event loop is blocked

[killagu]

• Version: *
• Platform: *
• Subsystem: cluster

When worker event loop is blocked, it can not disconnect from the master. So the proc.kill will not be executed.

The SIGTERM can not work is good for me. I wish SIGKILL will work in this scenario as the doc.

'SIGKILL' cannot have a listener installed, it will unconditionally terminate Node.js on all platforms.

And here is the code.

'use strict';

const cluster = require('cluster');
const assert = require('assert');
const isMaster = cluster.isMaster;

if (isMaster) {
  const worker = cluster.fork();
  setTimeout(() => {
    worker.kill('SIGKILL'); // worker.process.kill('SIGKILL');
  }, 1000);
  worker.on('exit', () => {
    console.log('worker exit');
  })
} else {
  let i = 2;
  while(true) {
    i = i % 2;
  }
}

worker.process.kill works, but looks like odd.