This appears to be a timers bug in Node core. On my machine (macOS), Node 11.1.0 and latest Node master branch (Node 10 is not impacted), the following command just hangs:

$ node node_modules/.bin/lab -i 113

The setTimeout() inside this call to Hoek.wait() never calls its callback.

I've been able to reproduce this without lab and hoek, but haven't put together a reproduction without hapi+nes.

Details

'use strict';
const Hapi = require('hapi');
const Nes = require('./');

async function main() {
  const server = Hapi.server();
  await server.register({
    plugin: Nes,
    options: {
      auth: false,
      heartbeat: { interval: 50, timeout: 45 }
    }
  });

  server.route({
    method: 'GET',
    path: '/',
    handler: async () => {
      await wait(110);
      return 'hello';
    }
  });

  await server.start();
  const client = new Nes.Client('http://localhost:' + server.info.port);

  await client.connect();
  await client.request('/');
  client.disconnect();
  await server.stop();
}

setTimeout(() => {}, 1000);
main();


function wait(timeout) {
  return new Promise((resolve) => {
      setTimeout(resolve, timeout);
  });
};

EDIT: Potential reproduction using only Node core:

Details

'use strict';
let client = null;

function serverBeat() {
  setTimeout(() => {}, 45);
  setTimeout(serverBeat, 50);
  clientBeat();
}

function clientBeat() {
  clearTimeout(client);
  client = setTimeout(clientBeat, 95);
}

setTimeout(() => {}, 10000);
setTimeout(serverBeat, 50);
setTimeout(() => {}, 120000);
clientBeat();

setTimeout(() => {
  console.log('finished!');
  process.exit();
}, 110);

Breaks on node 11 #257

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