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irfanahmedquraishi avatar image
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irfanahmedquraishi asked AnshulKumarMINDTREELIMITED-5501 published

ISAAS utilizing high CPU on domain controller

ISAAS is consuming high CPU utilization how to troubleshoot,

windows-active-directory
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Hello @irfanahmedquraishi,

Thank you for posting here.

Would you please tell us what ISAAS is?

Did you mean ISAAS as Local Security Authority Subsystem Service (LSASS)?

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


Best Regards,
Daisy Zhou

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Hello @irfanahmedquraishi,
How are things going on your end? Please keep me posted on this issue.
If you have any further questions or concerns about this question, please let us know.
I appreciate your time and efforts.

Best Regards,
Daisy Zhou


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Hello @irfanahmedquraishi,
I just want to confirm the current situations.
Please feel free to let us know if you need further assistance.


Best Regards,
Daisy Zhou

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Hi, if the posted answer resolves your question, please mark it as the answer by clicking the check mark. Doing so helps others find answers to their questions.

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irfanahmedquraishi avatar image
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irfanahmedquraishi answered

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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DaisyZhou-MSFT answered DaisyZhou-MSFT edited

Hello @irfanahmedquraishi,

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://docs.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

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

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