SPRequest allocation callstack logging in SharePoint 2010 and WSS 4.0

As discussed in an earlier article SPRequest allocation callstack logging in WSS 3.0 and MOSS 2007 could be enabled by adding a registry key. The caveat with the registry key was that it required a restart of the process to take effect.

In WSS 4.0 / SP2010 the design has been changed to a more dynamic approach. To enable or disable logging of SPRequest allocation callstack in the new version requires to use the SharePoint object model to change the value of a property of the SharePoint ContentService. Thanks to Powershell this can be easily achieved without a compiler.

Just copy the following code into a file with the extension .ps1 (e.g. EnableSPRequestCallstacks.ps1 for the first script and DisableSPRequestCallstacks.ps1)

[System.Reflection.Assembly]::LoadWithPartialName(“Microsoft.SharePoint”) > $null

$contentSvc = [Microsoft.SharePoint.Administration.SPWebService]::ContentService
$contentSvc.CollectSPRequestAllocationCallStacks = $true

To disable SPRequest allcoation callstack logging after you completed testing just replace $true with $false:

[System.Reflection.Assembly]::LoadWithPartialName(“Microsoft.SharePoint”) > $null

$contentSvc = [Microsoft.SharePoint.Administration.SPWebService]::ContentService
$contentSvc.CollectSPRequestAllocationCallStacks = $false

To start the powershell scripts please open the SharePoint 2010 Management Shell, switch to the directory where you stored the ps1 files and start them using the following syntax:

PS> .\EnableSPRequestCallstacks.ps1

The changes done by the above listed scripts will be active asap without a need to recycle the process that should be monitored.


  1. It does not work, I enabled this in runtime and the errors are still showing me an Allocation ID and not a site or site collection.


  2. Hi,

    the article does not talk about showing a site or a site collection.

    It talks about enabling a callstack which shows the exact location in your code which allocates the memory.




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