Concurrency Error with PSConfig

Patching SharePoint servers, you’ve probably run into the situation where you try to run PSConfig to upgrade a server and it fails on step three. Looking at the error logs, you’ll may see SPUpdatedConcurrencyException is the error that was thrown.

An exception of type Microsoft.SharePoint.Administration.SPUpdatedConcurrencyExc
eption was thrown.  Additional exception information: An update conflict has occ
urred, and you must re-try this action. The object SPUpgradeSession Name=Upgrade
-20120917-101200-949 was updated by MYDOMAINspinstall, in the PSCONFIG (3540) pr
ocess, on machine SERVER1.  View the tracing log for more information about the

Total number of configuration settings run: 3
Total number of successful configuration settings: 2
Total number of unsuccessful configuration settings: 1
Successfully stopped the configuration of SharePoint Products.
Configuration of SharePoint Products failed.  Configuration must be performed be
fore you use SharePoint Products.  For further details, see the diagnostic log l
ocated at C:Program FilesCommon FilesMicrosoft SharedWeb Server Extensions14LOGSPSCDiagnostics_9_17_2012_10_11_55_375_12483735.log

..and the application
event log.

There are a lot of entries on the web about this – lots of information about clearing out the SharePoint object cache; but that may not always work. What I’ve found that seems to correct the problem every time is to run this command on the offending server:

1. Open Administrative Command Prompt
2. Go to

c:Program FilesCommonMicrosoft SharedWeb Server Extensions14BIN

3. Execute the following:

stsadm –o setproperty –propertyname command-line-upgrade-running –propertyvalue no

This should clear the “an upgrade is in process” flag on the server. You should now be able to run your PSConfig as expected.

Microsoft SharePoint, psconfig, upgrade concurrency, Windows PowerShell

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