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Error During Load Testing for 50 Users

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DK
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DK asked on 19 Jul 2010, 06:33 AM
Hi
I am getting the following exception during load testing width 50 users.
What may be the problrm.
Please help me to over come from this problem.

Timestamp: 7/17/2010 10:44:23 AM Message:
Error Message : Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.
Stack Trace :    at System.Web.UI.ViewStateException.ThrowError(Exception inner, String persistedState, String errorPageMessage, Boolean macValidationError)
   at System.Web.UI.ViewStateException.ThrowMacValidationError(Exception inner, String persistedState)
   at System.Web.UI.ObjectStateFormatter.Deserialize(String inputString)
   at System.Web.UI.ObjectStateFormatter.System.Web.UI.IStateFormatter.Deserialize(String serializedState)
   at System.Web.UI.Util.DeserializeWithAssert(IStateFormatter formatter, String serializedState)
   at System.Web.UI.HiddenFieldPageStatePersister.Load()
   at Telerik.Web.UI.RadHiddenFieldPageStatePersister.Load()
   at System.Web.UI.Page.LoadPageStateFromPersistenceMedium()
   at System.Web.UI.Page.LoadAllState()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
   at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
   at System.Web.UI.Page.ProcessRequest()
   at System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context)
   at System.Web.UI.Page.ProcessRequest(HttpContext context)
   at ASP.app_pages_transfersummary_aspx.ProcessRequest(HttpContext context)
   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
 Category: errors Severity: Information Machine: MLISINVWTOAWEB4 Application Domain: /LM/W3SVC/1/ROOT-1-129238370435562304 Process Id: 5096 Process Name: c:\windows\system32\inetsrv\w3wp.exe Win32 Thread Id: 3776 Thread Name:




Thanks in advance

Dharmendra Kumar

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Telerik team
answered on 21 Jul 2010, 11:25 AM
Hello Dharmendra,

I'm afraid that I'm unable to recreate such behavior locally. Therefore can you please provide some details about the page under test, the actual test and the tested environment. Also is there change in the beahvior if you remove the RadHiddenFieldPageStatePersister?

All the best,
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the Telerik team
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