ISAAS utilizing high CPU on domain controller

irfan 1 Reputation point
2021-07-06T12:12:58.233+00:00

ISAAS is consuming high CPU utilization how to troubleshoot,

Active Directory
Active Directory
A set of directory-based technologies included in Windows Server.
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  1. irfan 1 Reputation point
    2021-07-08T12:12:25.87+00:00

    Yes exactly your right ISAAS is Local Security Authority Subsystem Service this service in one of my DC consuming high CPU.....

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  2. Daisy Zhou 18,701 Reputation points Microsoft Vendor
    2021-07-12T09:01:33.17+00:00

    Hello @irfan ,

    I am sorry for the late reply. Thank you for your confirmation.

    Local Security Authority Subsystem Service (LSASS) is a process in Microsoft Windows operating systems that is responsible for enforcing the security policy on the system. It verifies users logging on to a Windows computer or server, handles password changes, and creates access tokens.

    It (ISASS utilizing high CPU) means many users and machines launch authenticate to this DC during one period of time.

    For troubleshooting this issue, you can refer to link below.

    How to troubleshoot high Lsass.exe CPU utilization on Active Directory Domain Controllers
    https://learn.microsoft.com/en-us/troubleshoot/windows-server/identity/troubleshoot-high-lsass.exe-cpu-utilization

    Hope the information above is helpful.

    Should you have any question or concern, please feel free to let us know.

    Best Regards,
    Daisy Zhou

    ============================================

    If the Answer is helpful, please click "Accept Answer" and upvote it.

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  3. MicroJB 0 Reputation points
    2023-03-28T11:03:58.4466667+00:00

    Hi Team

    ISASS utilizing high CPU in Domain Controllers

    Is this issue resolved?

    If yes, Could you please update the solution here.

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