Errors on Stress Test

From: Shabam (chalupa_at_yomama-nospam.com)
Date: 03/13/05


Date: Sun, 13 Mar 2005 04:03:20 -0800

I'm getting the following 2 errors randomly when doing a load test on a web
application's search engine. As far as I know, there isn't writing to the
DB involved when doing searches, so I'm at a loss of why this occurs under
load. I'm not the programmer, but this doesn't seem right. Can someone
help me figure out what is causing this, and what should be done to solve
it?

ERROR 1:

Server Error in '/' Application.
----------------------------------------------------------------------------

----
There is no row at position 8.
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 8.
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 8.]
   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
ERROR 2:
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.]
   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


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