我有个tls的服务器，代码如下

'use strict'
var tls = require('tls');
var fs = require('fs');

var options = {
    //options
}

var clients = [];

var server = tls.createServer(options);

server.on('secureConnection', function (tlsSocket) {
    console.log('new connection,authorized:', tlsSocket.authorized);
    tlsSocket.write('welcome,there is ' + clients.length + ' guests.\n');
});

const tlsSessionStore = {};
server.on('newSession', (id, data, cb) => {
    console.log('newSession');
    tlsSessionStore[id.toString('hex')] = data;
    cb();
});
server.on('resumeSession', (id, cb) => {
    console.log('resumeSession');
    cb(null, tlsSessionStore[id.toString('hex')] || null);
});

server.listen(6666, function () {
    console.log('TLS listened on port 6666');
});

客户端的代码是：

'use strict'
var tls = require('tls');
var fs = require('fs');

//使用客户端私钥和证书创建服务器
var options = {
    //options
    }
};

process.stdin.resume();
var tlsSocket = tls.connect(options, function () {
    console.log('连接成功');
    process.stdin.pipe(tlsSocket, { end: false });
    tlsSocket.pipe(process.stdout);
});


//接收服务器数据
tlsSocket.on('data', function (data) {
    console.log('收到服务器数据：%s', data);
});

每次客户端连接服务器，newSession和resumeSession的事件都不会被触发，但是用openssl s_client -reconnect -port 6666 2>&1 -no_ticket 来测试，就能触发服务器的newSession和resumeSession事件（不加-no_ticket参数也不会触发），我想能尽量复用连接会话提高连接效率，请问该怎么做才能复用会话呢？