HI,
We are using Windows 2012 R2, and running IIS 8.5 web Server, and .Net Version 4.5.
More then 100 mobile users are connected with server and and posting their data in database using above web server.
Following are the application Server specifications:
-- DELL Server 64-GB RAM, 2 physical processors (2 x 16 =32 Cores).
Following are the Database Server specifications:
-- DELL Server 128-GB RAM, 2 physical processors (2 x 16 =32 Cores).
We are actually facing the issue with 100% CPU.
Here are the findings:
w2wp.exe process running and having multiple threads, during monitoring the some long running threads are observed.
Using Windows Process Explorer the thread stack values are following:
Please guide us what is the problem exactly?
================================================================================= Newtonsoft.Json.dll!Newtonsoft.Json.JsonReader.get_Depth+0x2b
Newtonsoft.Json.dll!Newtonsoft.Json.Serialization.JsonSerializerInternalReader.HandleError+0x67
Newtonsoft.Json.dll!Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateList+0x5c1
Newtonsoft.Json.dll!Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateList+0x134
Newtonsoft.Json.dll!Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal+0x102
Newtonsoft.Json.dll!Newtonsoft.Json.Serialization.JsonSerializerInternalReader.SetPropertyValue+0x1c4
Newtonsoft.Json.dll!Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateObject+0x54f
Newtonsoft.Json.dll!Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject+0x1c4
Newtonsoft.Json.dll!Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal+0xbc
Newtonsoft.Json.dll!Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateList+0x462
Newtonsoft.Json.dll!Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateList+0x134
Newtonsoft.Json.dll!Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal+0x102
Newtonsoft.Json.dll!Newtonsoft.Json.Serialization.JsonSerializerInternalReader.SetPropertyValue+0x1c4
Newtonsoft.Json.dll!Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateObject+0x54f
Newtonsoft.Json.dll!Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject+0x1c4
Newtonsoft.Json.dll!Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal+0xbc
Newtonsoft.Json.dll!Newtonsoft.Json.Serialization.JsonSerializerInternalReader.SetPropertyValue+0x1c4
Newtonsoft.Json.dll!Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateObject+0x54f
Newtonsoft.Json.dll!Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject+0x1c4
Newtonsoft.Json.dll!Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal+0xbc
Newtonsoft.Json.dll!Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize+0x208
Newtonsoft.Json.dll!Newtonsoft.Json.JsonSerializer.DeserializeInternal+0x201
System.Net.Http.Formatting.dll!<>c__DisplayClass8.<ReadFromStreamAsync>b__6+0x2e4
System.Net.Http.Formatting.dll!System.Threading.Tasks.TaskHelpers.RunSynchronously+0x78
System.Net.Http.Formatting.dll!System.Net.Http.Formatting.JsonMediaTypeFormatter.ReadFromStreamAsync+0xc1
System.Net.Http.Formatting.dll!<>c__DisplayClass1`1.<ReadAsAsync>b__0+0x34
System.Net.Http.Formatting.dll!<>c__DisplayClass41`2.<Then>b__40+0x46
System.Net.Http.Formatting.dll!System.Threading.Tasks.TaskHelpersExtensions.ThenImpl+0x114
System.Net.Http.Formatting.dll!System.Net.Http.HttpContentExtensions.ReadAsAsync+0x2da
System.Net.Http.Formatting.dll!System.Net.Http.HttpContentExtensions.ReadAsAsync+0x1e
System.Web.Http.dll!System.Web.Http.ModelBinding.FormatterParameterBinding.ExecuteBindingAsync+0xe6
System.Web.Http.dll!<>c__DisplayClass1.<ExecuteBindingAsync>b__0+0x25
System.Core.dll!WhereSelectArrayIterator`2.MoveNext+0x52
System.Web.Http.dll!System.Threading.Tasks.TaskHelpers.IterateImpl+0x87
System.Web.Http.dll!System.Threading.Tasks.TaskHelpers.Iterate+0x5a
System.Web.Http.dll!System.Web.Http.Controllers.HttpActionBinding.ExecuteBindingAsync+0x1bc
System.Web.Http.dll!<>c__DisplayClass3.<ExecuteAsync>b__0+0x2f
System.Web.Http.dll!System.Web.Http.ApiController.ExecuteAsync+0x1cf
System.Web.Http.dll!System.Web.Http.Dispatcher.HttpControllerDispatcher.SendAsync+0x76
System.Net.Http.dll!System.Net.Http.HttpMessageInvoker.SendAsync+0x4f
System.Web.Http.dll!System.Web.Http.Dispatcher.HttpRoutingDispatcher.SendAsync+0x15d
System.Web.Http.dll!System.Web.Http.HttpServer.SendAsync+0xff
System.Net.Http.dll!System.Net.Http.HttpMessageInvoker.SendAsync+0x4f
System.Web.Http.WebHost.dll!System.Web.Http.WebHost.HttpControllerHandler.BeginProcessRequest+0x11f
System.Web.dll!CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute+0x1e2
System.Web.dll!System.Web.HttpApplication.ExecuteStep+0x120
System.Web.dll!PipelineStepManager.ResumeSteps+0x92a
System.Web.dll!System.Web.HttpApplication.BeginProcessRequestNotification+0x83
System.Web.dll!System.Web.HttpRuntime.ProcessRequestNotificationPrivate+0x28e
System.Web.dll!System.Web.Hosting.PipelineRuntime.ProcessRequestNotificationHelper+0x5c1
System.Web.dll!System.Web.Hosting.PipelineRuntime.ProcessRequestNotification+0x22
[Unmanaged to Managed Transition]
[Native Frame: IL Method without Metadata]
clr.dll!GetMetaDataInternalInterface+0x20183
clr.dll!CreateApplicationContext+0xe11a
[Managed to Unmanaged Transition]
[AppDomain Transition]
[Unmanaged to Managed Transition]
clr.dll!CreateApplicationContext+0xdfd4
clr.dll!CreateApplicationContext+0xe09d
clr.dll!GetMetaDataInternalInterface+0x2012d
webengine4.dll!MgdGetCurrentNotificationInfo+0x272
webengine4.dll!MgdGetServerVariableW+0x1aa
clr.dll!CreateApplicationContext+0xd3ae
clr.dll!CreateApplicationContext+0xc871
clr.dll!CreateApplicationContext+0xc6f2
clr.dll!StrongNameSignatureVerification+0x14cfe
KERNEL32.DLL!BaseThreadInitThunk+0x22
ntdll.dll!RtlUserThreadStart+0x34
=================================================================================
Please guide us what is the problem exactly?
Thank
