How can i deal with node.js/socket.io memory leak? -

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what part of code cause memory leak?

i make process listener.it can listen memory's change.so know memory usage growing , never fall.sometimes can growing 800,000k , make computer crash.

the number of concurrent connections accepted 100-300.

code this:

var http = require('http').createserver(), socketio = require('socket.io').listen(http); var fs = require("fs"); var util = require('util');  http.listen(3000); var connectcount = 0; socketio.on("connection",function(socket){    connectcount++;    socket.on('chatmessage',function(msg){             delete res;             delete res2;           //json string return client              var res = {                 channel:msg.channel,                 clubname:msg.name,                 dn:msg.dn,  .                 mescontent:msg.messagecontent,                 dn1:"",                 dn2:""             }              var res2 = {                 channel:msg.channel,                 clubname:msg.name,                 dn:"",                   mescontent:msg.messagecontent,                 dn1:"",                 dn2:"" ,                 curchannel:msg.curchannel             }              if(msg.channel == 0){   //public message                  socket.emit('pubmessage',res2,function(){                     console.log("ok");                 });                 socket.broadcast.emit('pubmessage',res,function(){                     console.log("ok");                 });             }else if(msg.channel == 7){ //private message                  socket.emit('primessage',res,function(){                     console.log("ok");                 });                 socket.broadcast.emit('primessage',res,function(){                     console.log("ok");                 });             }         });         //cache data geter         socket.on('getchatcache',function(type){             var ind = 0;             socket.emit("getchatcache",type==7 ? chatcache_20.where("channel",type) : chatcache_20);         });         //chat server init method         socket.on('init',function(){             socket.emit('init',{chatchache:chatcache_20});         });         })


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