使用websocket和nodejs时，文件描述符的编号会增加

我正在使用Websocket库ws npm在5001和nodejs为80端口通信。

我的问题是在一段时间内文件描述符的数量增加，导致更多的内存消耗。

以下是我的代码。

var SOCKETS = []; //Used for publish URL var app = https.createServer(options, function(req, response){ log.debug("connection:"+ req.url); var path = url.parse(req.url,true).pathname; log.debug('path:'+path); //response.writeHead(200,{ 'Content-Type': 'text/html' }); switch(path){ case '/push': client.send(user_message); response.writeHead(200,{ 'Content-Type': 'text/json' }); response.write(JSON.stringify({ 'userids': valid_users})); break; } // Send HTML headers and message response.end(''); }); app.listen(config.websocket_port); var WebSocketServer = require('ws').Server , wss = new WebSocketServer({ server: app } ); wss.on('connection', function(ws) { ws.on('message', function(userid) { ws.userid = userid; if(SOCKETS[userid]){ delete SOCKETS[userid]; } SOCKETS[userid] = ws; log.debug("Userid: " + userid.toString() + " connected"); }); ws.on('close', function(){ log.debug(" Socket with userid closed ", ws.userid); var userid = ws.userid; if(SOCKETS[userid] == ws){ SOCKETS[userid] = null; } delete SOCKETS[userid]; }); ws.on('error', function(){ log.debug(" Socket error "); }); }); 

有人可以帮忙吗？