错误：此套接字已关闭

Question

我目前是Node.js的新手。我遇到以下异常的问题。知道究竟是什么，这个例外意味着需要什么解决方案.. ????

Error: This socket is closed. 
    at WriteStream.Socket._write (net.js:635:19) 
    at doWrite (_stream_writable.js:219:10) 
    at writeOrBuffer (_stream_writable.js:209:5) 
    at WriteStream.Writable.write (_stream_writable.js:180:11) 
    at WriteStream.Socket.write (net.js:613:40)       
    at Console.log (/home/ubuntu/svnrepo/FoodiptoBackend/TransactionManagement/node_modules/winston/lib/winston/transports/console.js:78:20) 
    at emit (/home/ubuntu/svnrepo/FoodiptoBackend/TransactionManagement/node_modules/winston/lib/winston/logger.js:174:17) 
    at /home/ubuntu/svnrepo/FoodiptoBackend/TransactionManagement/node_modules/async/lib/async.js:108:13 
    at Array.forEach (native) 
    at _each (/home/ubuntu/svnrepo/FoodiptoBackend/TransactionManagement/node_modules/async/lib/async.js:32:24) 
    at Object.async.each (/home/ubuntu/svnrepo/FoodiptoBackend/TransactionManagement/node_modules/async/lib/async.js:107:9) 
    at Logger.log (/home/ubuntu/svnrepo/FoodiptoBackend/TransactionManagement/node_modules/winston/lib/winston/logger.js:202:9)

以下是我的应用程序中使用的记录器代码。

var winston = require("winston");
var moment = require("moment");

//Note : create directory for logs manually
var logFileName = process.cwd() + '/logs/' + moment().utc().format("YYYYMMDD") +   '.log';

var logger = new (winston.Logger)({
    transports: [
        new (winston.transports.Console)(),
        new (winston.transports.File)({
            filename: logFileName,
            handleExceptions: true, //same file shall be used for handling info as well as  exception logs
            json: true,
            maxsize: 5242880,
            timestamp: true
        })
    ],
    exitOnError: false //prevent exit if an uncaught exception occurs
});

//
// Handle errors
//
logger.on('error', function (err) {
    //console.log("Error occured while logging");
});

module.exports = logger;