TFS Date & Time field

by XDK 3. February 2013 19:09


TFS store date & time as the UTC time in DB to work across the regions. Visual Studio will translate the date to the time zone of the client but Web Access follows the server time zone setting by default



Azure DevOps on-premises

TFS Service account permissions on Database

by XDK 2. February 2013 13:15


TFS Service account requires the follwoing permissions on TFS - Share Point DBs

APP Database  Roles & Permissions
SQL Server System Master Public and TFSExecRole
TFS Configuration Public and TFSExecRole
TFS Collection Public, db_datareader, db_datawriter, db_owner and TFSExecRole
TFS Warehouse Public, TFSExecRole and TfsWarehouseDataReader
SharePoint Configuration Public and  db_owner

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Azure DevOps on-premises | TFS 2010 | TFS 2012

TF26179 – Field Type 'TreePath' can be used only with System.AreaPath & System.IterationPath – not with custom fields

by XDK 25. January 2013 14:20

The treepath field type supports only system.areapath and system.iterationpath and cannot be used for the custom fields. It’s a limitation


Azure DevOps on-premises | TFS 2010 | TFS 2012

TF10152: The item $/ must remain locked because its file type prevents multiple check-outs.

by XDK 24. January 2013 10:34


Any time a pending change is made to an item, the file types list is checked to see if the extension requires automatic locking at checkout. The idea behind automatic locking is that some file types (images, for example) are hard to merge, and that it may be beneficial to keep two people from working on the same item at the same time.


The list of file extensions is configurable through the Team Explorer by right-clicking the root (server) node and selecting Team Foundation Server Settings → Source Control File Types.




To disable automatic locking by file type, you can find the file extension you're interested in, click Edit... and check the box for "Enable file merging and multiple checkout."

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Azure DevOps on-premises | TFS 2010

The performance counter category ‘Memory’ cannot be accessed on computer ‘COMPUTER1’ (Timed out trying to read performance counter category ‘Memory’ on computer ‘COMPUTER01’); check that the category and computer names are correct.

by XDK 15. January 2013 11:59


Performance Monitor Security settings

The test controller account must be in the Performance Monitor Users group of all machines performance data will be read from. User who is trying to access performance data (locally/remotely) should be part of  ”Performance Monitor Users” and “Performance Log Users”. If there are not much security concerns make the user part of Local “Administrators” group which will ensure full access on the machine.

Load test timeout settings
If permission levels are all fine. But still you are still running into the same issue. That means you have to set load test’s performance counter initialization time out settings. But where to do that? as there is no provision to do it though VS IDE. For that you have to do some manual configurations in load test’s hosting process’s configuration file. Now this configuration file is different for VS 2008 and VS 2010. Following are the details on that.
For Visual Studio 2008, open the file VSTestHost.exe.config in the folder C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE
For Visual Studio 2010, open the file Devenv.exe.config in the folder C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE
AND then add following entries to it. That will solve the timout issue.
      <add key=”LoadTestCounterCategoryReadTimeout” value=”60000″/>
      <add key=”LoadTestCounterCategoryExistsTimeout” value=”60000″/>


Web Performance & Load Tests

About the author

My name is Xavier Dilip Kumar Jayaraj having 13+ years of IT experience which includes solid experience and depth Knowledge in Application Life Cycle Management, Configuration Management, Implementation and Support using TFS on-premises and Azure DevOps. I have invested in gaining DevOps knowledege to expertise with Cloud Computing providers namely Microsoft Azure and Amazon Web Services in recent years. I am very positive to learn and adapt emerging technologies to client’s environment.

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The information provided here is based on my expreriences, troubleshooting and online/offline findings. It can be used as is on your own risk without any warranties and I impose no rights.