Object reference not set to an instance of an object.

[Ganesan selvaraj]

Hi
We are using .net 1.1 on windows 2003 server. This is we are facing in our
production server.

When we are doing the load testing we are getting the bellow error. While
the load testing this error is not coming frequently. When we run 20 threads
for 3 mins we are getting this error message 2 or 3 times. But this line of
code is executed by all the threads.
Please any one face this problem earlier kindly tell me how you could solve
the problem.


==============
Event Type: Error
Event Source: Application
Event Category: None
Event ID: 22
Date: 5/21/2007
Time: 3:43:10 PM
User: N/A
Computer: SGMS-DEV2
Description:
The description for Event ID ( 22 ) in Source ( Application ) cannot be
found. The local computer may not have the necessary registry information or
message DLL files to display messages from a remote computer. You may be able
to use the /AUXSOURCE= flag to retrieve this description; see Help and
Support for details. The following information is part of the event:
,Message:System.DataTesting String:facet ::CREATOR : at
System.Data.DataView.GetRecord(Int32 recordIndex)
at System.Data.DataView.get_RowViewCache()
at System.Data.DataView.GetElement(Int32 index)
at System.Data.DataView.get_Item(Int32 recordIndex)
at SUI.UIs.Index.constTabs()Object reference not set to an instance of an
object.,DateTime :21/05/2007 15:43:10SessionID :j4ychj3uhjohsa452qkdg055.
============

 

[Rob ^_^]

Hi Ganesan,

Apart from the obvious question "What has this to do with Internet
Explorer?" you may do better in finding a solution from your local MS
Business Partner.

This is a Public NG for Internet Explorer.

An answer to your question would just be subjecture. What is your server
configuration etc. At a quick guess though I would suggest upgrading to .net
2 (at least)

 

[Jim Rodgers]

Ganesan selvaraj,

Perhaps you have TWO problems. One issue is exactly what
you were looking for when you do load testing: you have a
problem scaling up to the load. (So, by design, what happens
when you run out of threads ...or whatever?)

However, is not the second problem related to getting the error
message you need to debug the first problem? At least that's
my impression from reading the BEGINNING of the Event Log
entry you quoted.

Nevertheless, I see at the BOTTOM of the log entry the following:

...at SUI.UIs.Index.constTabs()
Object reference not set to an instance of an object.

Of course, you say this code runs well at low load levels, but at
higher loads you experience this error. If you cannot infer the
cause from this information, then you might want to post again
to the ASP.NET discussion group.

You are reading my reply from the ASP Classic discussion group.
The ASP.NET discussion group is here:

http://www.microsoft.com/communitie...x?dg=microsoft.public.dotnet.framework.aspnet

Cheers,

Jim Rodgers