RE: Load Testing Errors

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• In reply to: Shabam: "Load Testing Errors"
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Date: Tue, 30 Nov 2004 02:45:06 -0800

Hi...

Which tool you are using? Also make sure that you have required data in DB
while doing stress test etc,,,

Let me know if you have any specific questions

With Best REgards
Naveen K S

"Shabam" wrote:

> A web application of mine developed using C# + MS SQL runs fine normally.
> However when I stress test it with a load testing software (using about 60
> simultaneous users) some instances start erroring out. I see two different
> errors. One is a "Object reference not set to an instance of an object."
> error, which appears to always contain the same information, and the other
> is a "There is no row at position X.", where X is a number.
>
> Is this an indication of bad coding or is this just a normal consequence of
> overloading a web application? How can the above two errors happen when the
> server is being overloaded when normally the application works fine?
>
>
> ERROR #1:
>
> Server Error in '/' Application.
> ----------------------------------------------------------------------------
> ----
>
> Object reference not set to an instance of an object.
> Description: An unhandled exception occurred during the execution of the
> current web request. Please review the stack trace for more information
> about the error and where it originated in the code.
>
> Exception Details: System.NullReferenceException: Object reference not set
> to an instance of an object.
>
> Source Error:
>
> An unhandled exception was generated during the execution of the current web
> request. Information regarding the origin and location of the exception can
> be identified using the exception stack trace below.
>
> Stack Trace:
>
>
> [NullReferenceException: Object reference not set to an instance of an
> object.]
> System.Data.DataView.GetRecord(Int32 recordIndex) +22
> System.Data.DataView.IsOriginalVersion(Int32 index) +9
> System.Data.DataRowView.GetColumnValue(DataColumn column) +23
> System.Data.DataColumnPropertyDescriptor.GetValue(Object component) +25
> System.Web.UI.DataBinder.GetPropertyValue(Object container, String
> propName) +72
> System.Web.UI.DataBinder.GetPropertyValue(Object container, String
> propName, String format) +11
> System.Web.UI.WebControls.ListControl.OnDataBinding(EventArgs e) +403
> System.Web.UI.Control.DataBind() +26
> FN.advancedsearch.populateListcontrols()
> FN.advancedsearch.Page_Load(Object sender, EventArgs e)
> System.Web.UI.Control.OnLoad(EventArgs e) +67
> System.Web.UI.Control.LoadRecursive() +35
> System.Web.UI.Page.ProcessRequestMain() +750
>
>
> ERROR #2:
>
> Server Error in '/' Application.
> ----------------------------------------------------------------------------
> ----
>
> There is no row at position 5.
> Description: An unhandled exception occurred during the execution of the
> current web request. Please review the stack trace for more information
> about the error and where it originated in the code.
>
> Exception Details: System.IndexOutOfRangeException: There is no row at
> position 5.
>
> Source Error:
>
> An unhandled exception was generated during the execution of the current web
> request. Information regarding the origin and location of the exception can
> be identified using the exception stack trace below.
>
> Stack Trace:
>
>
> [IndexOutOfRangeException: There is no row at position 5.]
> System.Data.DataView.GetRecord(Int32 recordIndex) +60
> System.Data.DataView.IsOriginalVersion(Int32 index) +9
> System.Data.DataRowView.GetColumnValue(DataColumn column) +23
> System.Data.DataColumnPropertyDescriptor.GetValue(Object component) +25
> System.Web.UI.DataBinder.GetPropertyValue(Object container, String
> propName) +72
> System.Web.UI.DataBinder.GetPropertyValue(Object container, String
> propName, String format) +11
> System.Web.UI.WebControls.ListControl.OnDataBinding(EventArgs e) +403
> System.Web.UI.Control.DataBind() +26
> FN.advancedsearch.populateListcontrols()
> FN.advancedsearch.Page_Load(Object sender, EventArgs e)
> System.Web.UI.Control.OnLoad(EventArgs e) +67
> System.Web.UI.Control.LoadRecursive() +35
> System.Web.UI.Page.ProcessRequestMain() +750
>
>
>

• Previous message: William Stacey [MVP]: "Re: Is Strong Naming is Tamper-Proof?"
• In reply to: Shabam: "Load Testing Errors"
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