I am developing web application using (C#) and (ASP.NET Web API) and MS SQL 2008 R2 and hosting on IIS7 in Windows Server 2008, All APIs return data in JSON
When i call any API from any web browser and refresh the page to call again before the first call finishes it give me warning in the event viewer and after 0 to 5 minutes the worker process in the II7 stopped for about 2 minutes(hang) and all APIs calls from all users at the period of those 2 minutes don't work and event viewer give me an error:
The Warning in the event viewer
Event code: 3005
Event message: An unhandled exception has occurred.
Event time: 6/5/2012 3:29:10 PM
Event time (UTC): 6/5/2012 1:29:10 PM
Event ID: 63adcb812864465 cab58e9f870bcbb 92
Event sequence: 5
Event occurrence: 1
Event detail code: 0
Application information:
Application domain: /LM/W3SVC/2/ROOT/AAA-2-129833765408950 000
Trust level: Full
Application Virtual Path: /AAA
Application Path: C:\inetpub\wwwr oot\AAA\
Machine name: MyMachine
Process information:
Process ID: 9860
Process name: w3wp.exe
Account name: NT AUTHORITY\NETWO RK SERVICE
Exception information:
Exception type: HttpException
Exception message: The remote host closed the connection. The error code is 0x800704CD.
at System.Web.Http .WebHost.HttpCo ntrollerHandler .EndProcessRequ est(IAsyncResul t result)
at System.Web.Http .WebHost.HttpCo ntrollerHandler .System.Web.IHt tpAsyncHandler. EndProcessReque st(IAsyncResult result)
at System.Web.Http Application.Cal lHandlerExecuti onStep.System.W eb.HttpApplicat ion.IExecutionS tep.Execute()
at System.Web.Http Application.Exe cuteStep(IExecu tionStep step, Boolean& completedSynchr onously)
Request information:
Request URL: My API URL
Request path: API Path
User host address: My IP
User:
Is authenticated: False
Authentication Type:
Thread account name: NT AUTHORITY\NETWO RK SERVICE
Thread information:
Thread ID: 8
Thread account name: NT AUTHORITY\NETWO RK SERVICE
Is impersonating: False
Stack trace: at System.Web.Http .WebHost.HttpCo ntrollerHandler .EndProcessRequ est(IAsyncResul t result)
at System.Web.Http .WebHost.HttpCo ntrollerHandler .System.Web.IHt tpAsyncHandler. EndProcessReque st(IAsyncResult result)
at System.Web.Http Application.Cal lHandlerExecuti onStep.System.W eb.HttpApplicat ion.IExecutionS tep.Execute()
at System.Web.Http Application.Exe cuteStep(IExecu tionStep step, Boolean& completedSynchr onously)
The Error in the event viewer
An unhandled exception occurred and the process was terminated.
Application ID: /LM/W3SVC/2/ROOT/AAA
Process ID: 9860
Exception: System.Aggregat eException
Message: A Task's exception(s) were not observed either by Waiting on the Task or accessing its Exception property. As a result, the unobserved exception was rethrown by the finalizer thread.
StackTrace: at System.Threadin g.Tasks.TaskExc eptionHolder.Fi nalize()
InnerException: System.Web.Http Exception
Message: The remote host closed the connection. The error code is 0x800704CD.
StackTrace: at System.Web.Http .WebHost.HttpCo ntrollerHandler .EndProcessRequ est(IAsyncResul t result)
at System.Web.Http .WebHost.HttpCo ntrollerHandler .System.Web.IHt tpAsyncHandler. EndProcessReque st(IAsyncResult result)
at System.Web.Http Application.Cal lHandlerExecuti onStep.System.W eb.HttpApplicat ion.IExecutionS tep.Execute()
at System.Web.Http Application.Exe cuteStep(IExecu tionStep step, Boolean& completedSynchr onously)
code behind
When i call any API from any web browser and refresh the page to call again before the first call finishes it give me warning in the event viewer and after 0 to 5 minutes the worker process in the II7 stopped for about 2 minutes(hang) and all APIs calls from all users at the period of those 2 minutes don't work and event viewer give me an error:
The Warning in the event viewer
Event code: 3005
Event message: An unhandled exception has occurred.
Event time: 6/5/2012 3:29:10 PM
Event time (UTC): 6/5/2012 1:29:10 PM
Event ID: 63adcb812864465 cab58e9f870bcbb 92
Event sequence: 5
Event occurrence: 1
Event detail code: 0
Application information:
Application domain: /LM/W3SVC/2/ROOT/AAA-2-129833765408950 000
Trust level: Full
Application Virtual Path: /AAA
Application Path: C:\inetpub\wwwr oot\AAA\
Machine name: MyMachine
Process information:
Process ID: 9860
Process name: w3wp.exe
Account name: NT AUTHORITY\NETWO RK SERVICE
Exception information:
Exception type: HttpException
Exception message: The remote host closed the connection. The error code is 0x800704CD.
at System.Web.Http .WebHost.HttpCo ntrollerHandler .EndProcessRequ est(IAsyncResul t result)
at System.Web.Http .WebHost.HttpCo ntrollerHandler .System.Web.IHt tpAsyncHandler. EndProcessReque st(IAsyncResult result)
at System.Web.Http Application.Cal lHandlerExecuti onStep.System.W eb.HttpApplicat ion.IExecutionS tep.Execute()
at System.Web.Http Application.Exe cuteStep(IExecu tionStep step, Boolean& completedSynchr onously)
Request information:
Request URL: My API URL
Request path: API Path
User host address: My IP
User:
Is authenticated: False
Authentication Type:
Thread account name: NT AUTHORITY\NETWO RK SERVICE
Thread information:
Thread ID: 8
Thread account name: NT AUTHORITY\NETWO RK SERVICE
Is impersonating: False
Stack trace: at System.Web.Http .WebHost.HttpCo ntrollerHandler .EndProcessRequ est(IAsyncResul t result)
at System.Web.Http .WebHost.HttpCo ntrollerHandler .System.Web.IHt tpAsyncHandler. EndProcessReque st(IAsyncResult result)
at System.Web.Http Application.Cal lHandlerExecuti onStep.System.W eb.HttpApplicat ion.IExecutionS tep.Execute()
at System.Web.Http Application.Exe cuteStep(IExecu tionStep step, Boolean& completedSynchr onously)
The Error in the event viewer
An unhandled exception occurred and the process was terminated.
Application ID: /LM/W3SVC/2/ROOT/AAA
Process ID: 9860
Exception: System.Aggregat eException
Message: A Task's exception(s) were not observed either by Waiting on the Task or accessing its Exception property. As a result, the unobserved exception was rethrown by the finalizer thread.
StackTrace: at System.Threadin g.Tasks.TaskExc eptionHolder.Fi nalize()
InnerException: System.Web.Http Exception
Message: The remote host closed the connection. The error code is 0x800704CD.
StackTrace: at System.Web.Http .WebHost.HttpCo ntrollerHandler .EndProcessRequ est(IAsyncResul t result)
at System.Web.Http .WebHost.HttpCo ntrollerHandler .System.Web.IHt tpAsyncHandler. EndProcessReque st(IAsyncResult result)
at System.Web.Http Application.Cal lHandlerExecuti onStep.System.W eb.HttpApplicat ion.IExecutionS tep.Execute()
at System.Web.Http Application.Exe cuteStep(IExecu tionStep step, Boolean& completedSynchr onously)
code behind
Code:
// GET /api/v1/content
[HttpGet]
public IEnumerable<ME_API_V1.Models.Content> GetContent()
{
Request.Headers.Add("Accept", "application/json");
List<ZMSLibrary.ME.Models.Content> contentList = new List<ZMSLibrary.ME.Models.Content>() ;
try
{
//DateTime CurrentDateTime = DateTime.Now;
var querystring = this.Request.RequestUri.Query;
var parameters = HttpUtility.ParseQueryString(querystring);
string userID = parameters["userID"];
string countryCode = parameters["countryCode"];
string language = parameters["language"];
string categoryName = parameters["categoryName"];
string subcategoryID = parameters["subcategoryID"];
string count = parameters["count"];
string start = parameters["start"];
string platform = parameters["platform"];
string imageSize = parameters["imageSize"];
//Check IP Restiriction
Restriction restiriction = new Restriction(ConfigurationManager.ConnectionStrings["AppSQLConnection"].ToString());
bool allowedCheck = restiriction.IsUserAllowed(userID);
if (!allowedCheck)
{
dynamic json = new JsonObject();
json.message = "Authorized Only for Mobinil in Egypt";
var msg = new HttpResponseMessage(System.Net.HttpStatusCode.Forbidden);
msg.Content = new StringContent(json.ToString());
msg.Content.Headers.ContentType.MediaType = "application/json";
throw new HttpResponseException(msg);
}
else
{
//Validate input data
if (InputValidation.isValidUserid(userID) &&
InputValidation.isValidCountryCode(countryCode) &&
InputValidation.isValidLanguage(language) &&
InputValidation.isValidCategory(categoryName) &&
InputValidation.isValidUserid(subcategoryID) &&
InputValidation.isValidPlatform(platform)
)
{
if (!InputValidation.isValidImageSize(imageSize))
{
imageSize = "high";
}
if (!InputValidation.isValidUserid(count) || !InputValidation.isValidUserid(start))
{
start = WebConfigurationManager.AppSettings["DefaultStart"];
count = WebConfigurationManager.AppSettings["DefaultCount"];
}
ContentOperations contentOperations = new ContentOperations();
contentList = contentOperations.getContent(subcategoryID, categoryName, count, start, countryCode, userID, ConfigurationManager.ConnectionStrings["AppSQLConnection"].ToString(), WebConfigurationManager.AppSettings["FileFolderName"], imageSize, language, platform);
if (contentList != null)
{
List<ME_API_V1.Models.Content> contentOutputList = new List<ME_API_V1.Models.Content>();
foreach (ZMSLibrary.ME.Models.Content c in contentList)
{
File tempFile = new File();
ME_API_V1.Models.Content cTemp = new ME_API_V1.Models.Content();
cTemp.contentID = int.Parse(c.ContentID);
if (c.Rating == "1")
cTemp.userRating = "Like";
else if (c.Rating == "0")
cTemp.userRating = "Dislike";
cTemp.date = String.Format("{0:G}", c.ContentDate);
//if (c.Provider.ContentProviderName != "") //to make the value null instead of ""
cTemp.providerName = c.Provider.ContentProviderName;
//if (c.Provider.ContentProviderIcon != "")
cTemp.providerIconURL = c.Provider.ContentProviderIcon;
//if (c.Provider.ContentProviderImage != "")
cTemp.providerImageURL = c.Provider.ContentProviderImage;
if (language == "AR")
{
//if (c.ContentArabicTitle != "")
cTemp.title = c.ContentArabicTitle;
//if (c.ContentArabicSubTitle != "")
cTemp.subtitle = c.ContentArabicSubTitle;
//if (c.ContentArabicDescription != "")
cTemp.description = c.ContentArabicDescription;
}
else
{
//if (c.ContentEnglishTitle != "")
cTemp.title = c.ContentEnglishTitle;
//if (c.ContentEnglishSubTitle != "")
cTemp.subtitle = c.ContentEnglishSubTitle;
//if (c.ContentEnglishDescription != "")
cTemp.description = c.ContentEnglishDescription;
}
if (categoryName == "Music")
{
foreach (ContentFile cf in c.ContentFiles)
{
if (cf.FileType.FileTypeName == "Icon")
tempFile.iconURL = cf.ContentFileName;
else if (cf.FileType.FileTypeName == "Image")
tempFile.imageURL = cf.ContentFileName;
else if (cf.FileType.FileTypeName == "Clip_High")
tempFile.highVideoURL = cf.ContentFileName;
else if (cf.FileType.FileTypeName == "Clip_Low")
tempFile.lowVideoURL = cf.ContentFileName;
else if (cf.FileType.FileTypeName == "Tone")
tempFile.toneURL = cf.ContentFileName;
else if (cf.FileType.FileTypeName == "Song")
tempFile.songURL = cf.ContentFileName;
else if (cf.FileType.FileTypeName == "YouTube")
tempFile.youtubeID = cf.ContentFileName;
}
}
else if (categoryName == "News")
{
foreach (ContentFile cf in c.ContentFiles)
{
if (cf.FileType.FileTypeName == "Icon")
tempFile.iconURL = cf.ContentFileName;
else if (cf.FileType.FileTypeName == "Image")
tempFile.imageURL = cf.ContentFileName;
}
}
else if (categoryName == "Videos")
{
foreach (ContentFile cf in c.ContentFiles)
{
if (cf.FileType.FileTypeName == "Icon")
tempFile.iconURL = cf.ContentFileName;
else if (cf.FileType.FileTypeName == "Image")
tempFile.imageURL = cf.ContentFileName;
else if (cf.FileType.FileTypeName == "Video_High")
tempFile.highVideoURL = cf.ContentFileName;
else if (cf.FileType.FileTypeName == "Video_Low")
tempFile.lowVideoURL = cf.ContentFileName;
else if (cf.FileType.FileTypeName == "YouTube")
tempFile.youtubeID = cf.ContentFileName;
}
}
else if (categoryName == "Applications")
{
foreach (ContentFile cf in c.ContentFiles)
{
if (cf.FileType.FileTypeName == "Icon")
tempFile.iconURL = cf.ContentFileName;
else if (cf.FileType.FileTypeName == "Image")
tempFile.imageURL = cf.ContentFileName;
else if (cf.FileType.FileTypeName == "App_Android" || cf.FileType.FileTypeName == "App_Nokia" || cf.FileType.FileTypeName == "App_Blackberry" || cf.FileType.FileTypeName == "App_iPhone")
{
tempFile.appURL = cf.ContentFileName;
}
}
}
cTemp.files = tempFile;
contentOutputList.Add(cTemp);
}
return contentOutputList;
}
}
if (contentList == null)
throw new Exception();
else
{
json.message = "Wrong or missing data";
var msg = new HttpResponseMessage(System.Net.HttpStatusCode.BadRequest);
msg.Content = new StringContent(json.ToString());
msg.Content.Headers.ContentType.MediaType = "application/json";
throw new HttpResponseException(msg);
}
}
}
catch (Exception ex)
{
if (ex is HttpResponseException)
{
throw;
}
else
{
json.message = "Error in System";
var msg = new HttpResponseMessage(System.Net.HttpStatusCode.InternalServerError);
msg.Content = new StringContent(json.ToString());
msg.Content.Headers.ContentType.MediaType = "application/json";
throw new HttpResponseException(msg);
}
}
}
}
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