Dears,

We tried to load test K2 blackpearl server (start a process instance only!) with ONLY load of “constant count user” = 2] but unfortunately it fails with the following exception

at System.String.wstrcpy(Char* dmem, Char* smem, Int32 charCount)

   at System.String.CtorCharPtrStartLength(Char* ptr, Int32 startIndex, Int32 length)

   at SourceCode.Workflow.Runtime.ArchiveX.GetString()

   at SourceCode.Workflow.Client.User.Load(ArchiveX ar)

   at SourceCode.Workflow.Client.Connection.Open(ConnectionSetup Setup)

   at WFWrapper.Manager.WFManager.InternetConnect() in E:ProjectsCSPDWFWrapperWFWrapperWFWrapperManagerWFManager.cs:line 156

 --- End of inner exception stack trace ---

    at WFWrapper.Manager.WFManager.InternetConnect() in E:ProjectsCSPDWFWrapperWFWrapperWFWrapperManagerWFManager.cs:line 164

   at WFWrapper.Manager.WFManager.Connect() in E:ProjectsCSPDWFWrapperWFWrapperWFWrapperManagerWFManager.cs:line 127

   at WFWrapper.Manager.WFManager.Start(WFInformation oInfo) in E:ProjectsCSPDWFWrapperWFWrapperWFWrapperManagerWFManager.cs:line 392

 --- End of inner exception stack trace ---

    at WFWrapper.Manager.WFManager.Start(WFInformation oInfo) in E:ProjectsCSPDWFWrapperWFWrapperWFWrapperManagerWFManager.cs:line 405

   at CSPD.Workflow.Testing.WFManagerTestHelper.StartTest(String processName, String folio, WFFields fields) in E:ProjectsCSPDWFWrapperWFWrapperCSPD.Workflow.TestingCommonWFManagerTestHelper.cs:line 267

   at CSPD.Workflow.Testing.InternetRenewPassport.StartInternetAdmissionPassportNoArchiveNotPaidTest() in E:ProjectsCSPDWFWrapperWFWrapperCSPD.Workflow.TestingIteration1InternetPassportsInternetRenewPassport.cs:line 759

Kindly note that the same load test is working properly incase t“constant count user” = 1].

However;

We tried to simulate this test using multithreading, as below code.

Console.WriteLine("......................Thread 1................");

Thread thrd = new Thread(new ParameterizedThreadStart(Starting));

Console.WriteLine(thrd.Name + ":" +thrd.ManagedThreadId);

thrd.Start(1);

Console.WriteLine("......................Thread 2................");

Thread thrd2 = new Thread(new ParameterizedThreadStart(Starting));

Console.WriteLine(thrd2.Name + ":" +thrd2.ManagedThreadId);

thrd2.Start(2);

thrd2.Suspend();           

Console.WriteLine("......................Thread 3................");

Thread thrd3 = new Thread(new ParameterizedThreadStart(Starting));           

thrd3.Start(3);

thrd3.Suspend();

System.Threading.Thread.Sleep(1000); //when removing this sleep we face the same problem, otherwise working properly

thrd2.Resume();

System.Threading.Thread.Sleep(1000); // when removing this sleep we face the same problem, otherwise working properly

thrd3.Resume();

Please check the following errors we faced when removing 1 second sleep…

1.       First exception on connection ...

  at SourceCode.Workflow.Runtime.ArchiveX.GetString()

   at SourceCode.Workflow.Client.User.Load(ArchiveX ar)

   at SourceCode.Workflow.Client.Connection.Open(ConnectionSetup Setup)

   at WFWrapper.Manager.WFManager.InternetConnect() in E:ProjectsCSPDWFWrapperWFWrapperWFWrapperManagerWFManager.cs:line 156

2.       Second exception on connection using threading and third exception the same...

   at SourceCode.Workflow.Client.InternalConnection.AuthenticateWindows()

   at SourceCode.Workflow.Client.InternalConnection.Authenticate()

   at SourceCode.Workflow.Client.Connection.Open(ConnectionSetup Setup)

   at WFWrapper.Manager.WFManager.InternetConnect() in E:ProjectsCSPDWFWrapperWFWrapperWFWrapperManagerWFManager.cs:line 156

Kindly note when trying to execute one thread! Or multiple threads with one second delay (sleep) everything is working properly.