High CPU/High Memory in WSUS following Update Tuesdays RRS feed

  • Question

  • https://blogs.technet.microsoft.com/configurationmgr/2017/08/18/high-cpuhigh-memory-in-wsus-following-update-tuesdays/

    Windows Server 2012 R2 (KB4039871) <- not required/compatible to our W2012 R2 server, but I still see w3wp.exe eating all CPU and WSUS service stops responding after each server restart. Also, the wsus server became very slow. Last time it worked at start of september. 

    Please remember to mark my post as an answer, if I really helped you out, or vote if usefull. Thank you!

    Friday, September 29, 2017 3:18 PM

All replies

  • Have a peek at my Adamj Clean-WSUS script. It is the last WSUS Script you will ever need!


    What it does:

    1. Add WSUS Index Optimization to the database to increase the speed of many database operations in WSUS by approximately 1000-1500 times faster.
    2. Remove all Drivers from the WSUS Database (Default; Optional).
    3. Shrink your WSUSContent folder's size by declining multiple types of updates including by default any superseded updates, preview updates, expired updates, Itanium updates, and beta updates. Optional extras: Language Packs, IE7, IE8, IE9, IE10, Embedded, NonEnglishUpdates, ComputerUpdates32bit, WinXP.
    4. Remove declined updates from the WSUS Database.
    5. Clean out all the synchronization logs that have built up over time (configurable, with the default keeping the last 14 days of logs).
    6. Compress Update Revisions.
    7. Remove Obsolete Updates.
    8. Computer Object Cleanup (configurable, with the default of deleting computer objects that have not synced within 30 days).
    9. Application Pool Memory Configuration to display the current private memory limit and easily set it to any configurable amount including 0 for unlimited. This is a manual execution only.
    10. Checks to see if you have a dirty database, and if you do, fixes it. This is primarily for Server 2012 WSUS, and is a manual execution only.
    11. Run the Recommended SQL database Maintenance script on the actual SQL database.
    12. Run the Server Cleanup Wizard.

    It will email the report out to you or save it to a file, or both.

    Although the script is lengthy, it has been made to be super easy to setup and use so don't over think it. There are some prerequisites and instructions at the top of the script. After installing the prerequisites and configuring the variables for your environment (email settings only if you are accepting all the defaults), simply run:

    .\Clean-WSUS.ps1 -FirstRun

    If you wish to view or increase the Application Pool Memory Configuration, or run the Dirty Database Check, you must run it with the required switch. See Get-Help .\Clean-WSUS.ps1 -Examples

    If you're having trouble, there's also a -HelpMe option that will create a log so you can send it to me for support.

    Adam Marshall, MCSE: Security

    Saturday, September 30, 2017 2:26 PM
  • Hello,

    It looks like that KB4039871 only applies to Windows Server 2012 Standard.

    You should install KB4034681 patch or above.

    Additionally, are there Windows 10 PCs in your environment? If you need to manage updates for Windows 10 with WSUS running on Windows 2012 R2, you must install the KB3095113 and KB3159706 patches for WSUS server.

    Best regards,

    Andy Liu

    Please remember to mark the replies as answers if they help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    Monday, October 2, 2017 1:44 AM
  • Thanks. None of above KBs were suitable for the wsus server. The CPU load stopped by itself by after reboots. I will continue to monitor the situation. 

    Please remember to mark my post as an answer, if I really helped you out, or vote if usefull. Thank you!

    Monday, October 2, 2017 5:14 AM