多客户端连接时C＃服务器程序挂起

Question

Greetings!

I have ac# console application which is installed as windows service in live machine. This application acts as server and uses http and https services. To commuunicate with client URLS's Tiny HTTP server open source is used. There are 90 clients using accessing the data from server using a client program which is developed using flex. This flex application connect to server as below,

Login url

try
{
   if(!Request.Uri.AbsoluteUri.Contains("https"))
        System.Threading.Monitor.Enter(Lock);
   if (Request.Method == Method.Post)
   {
      SiteSession siteSession = _login( Request.Form["SiteName"].Value.Trim(),
                                        Request.Form["UserName"].Value.Trim(),
                                        Request.Form["Password"].Value.Trim());
      if (siteSession != null)
      {
           if (siteSession.authenticated)
           {
              User currentUser = siteSession.thingzDatabase.currentUser;
              _database = siteSession.thingzDatabase;

                             --------

item/detail urls like http:\\domainname:port\\item\\detail\\temid one client calls nearly 70 url's and get data from server database.So totaly 90+ clients

when item/list is called below code is performed.

if (Id == "")
{
   //System.Threading.Monitor.Enter(_locker);
   System.Threading.Monitor.Enter(Lock);
   try
   {
     if (Request.AcceptTypes == null)
     {

        TypeController.session_id = Request.QueryString["sessionid"].Value;

        //queue.   
        Enqueue(Request.QueryString["sessionid"].Value);

        //string que = "";

        ////do
        ////{
        //que = queue.Dequeue();
        //TypeController.session_id = que;

        langStr = SessionDatabase.Language;
        filter = new AllThingzFilter(SessionDatabase, parameters, langStr);

        TypeController.session_id = null;

        filter.Execute();
                                 --------

There is one administrator who updates/ writes the data to the server database using secure https service with different port number. same login url calls and other post and get methods will be called in admin login.

Database used in server is sqlite. Now let me explain my problem, I have received complaint from client saying server gets hanged and administrator cannot be able to login . Or if login not able to upload any images as soon any update to database is performed the server hangs. So need to restart the windows service again.

When admin perform the CRUD operations to the server db. At the same time client application( flex) application try to get the data from server as well.This url calls from client applicatuon every 5 mins once.

What could be the issue and how can i solve this server hand. Is it a read or write issue to sqlite db. Please help me with valuable suggessions.

Regards Sangeetha

Answer 1

解决方案是将ASP.NET Web角色/成员功能与该DB CRUD操作分开：后者应实现自己的自治安全模型，或使用角色/成员类的输入。