Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.
Solved
IMAP causing high CPU utilization on Exchange 2013
Posted on 2016-09-29
With Microsoft Exchange IMAP and Microsoft Exchange IMAP Backend services started the CPU utilization runs 99-100% full-time. If these services are stopped, the CPU utilization runs 8-45%. This issue seems to have begun when CU 11 was installed and .NET 4.6.1 was installed in error. .NET 4.6.1 was removed and .NET 4.5.2 was repaired and server restarted. Same issue. Installed CU 14 and .NET 4.5.2 is still the latest .NET installed. If the ServerComponentState for component ImapProxy state is Inactive the CPU % drops back to "normal" range. Once the ImapProxy state is Active the CPU goes back to 99-100%. The Exchange server is a VMware VM with (2) vCPU and 32GB memory running Windows Server 2012 R2 with the latest Windows updates. My voicemail system requires IMAP to integrate with Exchange. Any ideas were the bottleneck might be?
Exchange-Snapshot.pdf
Exchange-Snapshot.pdf
[X]
Welcome to Experts Exchange
Add your voice to the tech community where 5M+ people just like you are talking about what matters.
- Help others & share knowledge
- Earn cash & points
- Learn & ask questions
2
4 Comments
Active 2 days ago
Try running ExPerfWiz...
https://experfwiz.codeplex.com/
.\experfwiz.ps1 -duration 01:00:00 -threads -interval 5 -filepath D:\Logs
Then take that file and run it through PAL.
https://pal.codeplex.com/
Once that has been processed, see what the report says.
https://experfwiz.codeplex.com/
.\experfwiz.ps1 -duration 01:00:00 -threads -interval 5 -filepath D:\Logs
Then take that file and run it through PAL.
https://pal.codeplex.com/
Once that has been processed, see what the report says.
Active 2 days ago
Pretty much the default. You kind have to develop a feel for what is best for your environment and the machine you are running it on.
No comment has been added to this question in more than 21 days, so it is now classified as abandoned.
I have recommended this question be closed as follows:
Accept: ScottCha (https:#a41822274)
If you feel this question should be closed differently, post an objection and the moderators will review all objections and close it as they feel fit. If no one objects, this question will be closed automatically the way described above.
exchangepro
Experts-Exchange Cleanup Volunteer
I have recommended this question be closed as follows:
Accept: ScottCha (https:#a41822274)
If you feel this question should be closed differently, post an objection and the moderators will review all objections and close it as they feel fit. If no one objects, this question will be closed automatically the way described above.
exchangepro
Experts-Exchange Cleanup Volunteer
Featured Post
Question has a verified solution.
If you are experiencing a similar issue, please ask a related question
This article will help to fix the below error for MS Exchange server 2010
I. Out Of office not working
II. Certificate error "name on the security certificate is invalid or does not match the name of the site"
III. Make Internal URLs and External…
With so many activities to perform, Exchange administrators are always busy in organizations. If everything, including Exchange Servers, Outlook clients, and Office 365 accounts work without any issues, they can sit and relax. But unfortunately, it…
To show how to generate a certificate request in Exchange 2013. We show this process by using the Exchange Admin Center.
Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center.
Navigate to the Servers >> Certificates…
how to add IIS SMTP to handle application/Scanner relays into office 365.
Suggested Courses
Course of the Month9 days, 9 hours left to enroll
609 members asked questions and received personalized solutions in the past 7 days.
Join the community of 500,000 technology professionals and ask your questions.