Exchange 2016 Performance Issues, Event Viewer referencing "MSExchangeServicesAppPool"
After our most recent round of updates, our 2016 Exchange server has had a spiking CPU and a reoccurring event in Event Viewer and we are having a difficult time tracking down the cause.
Event ID 5011
A process serving application pool 'MSExchangeServicesAppPool
We've recycled the app pool, upgraded to the most recent CU13 and patched the server completely to no avail. All my research points to EWS Managed API 2.2, but that's nowhere to be found on our Exchange.
Outlook client symptoms include slow to update shared calendars, and slow to open Out of Office assistants. In both cases, one would believe Outlook has crashed but waiting will eventually populate the calendars or open OOO. This makes sense with the high CPU utlization, but figured it was worth mentioning.
We are running Exchange 2016 CU13 on Server 2016. Fully patched.
I was hoping someone could point us in the right direction before we got MS support involved.
Thanks!
Event ID 5011
A process serving application pool 'MSExchangeServicesAppPool
We've recycled the app pool, upgraded to the most recent CU13 and patched the server completely to no avail. All my research points to EWS Managed API 2.2, but that's nowhere to be found on our Exchange.
Outlook client symptoms include slow to update shared calendars, and slow to open Out of Office assistants. In both cases, one would believe Outlook has crashed but waiting will eventually populate the calendars or open OOO. This makes sense with the high CPU utlization, but figured it was worth mentioning.
We are running Exchange 2016 CU13 on Server 2016. Fully patched.
I was hoping someone could point us in the right direction before we got MS support involved.
Thanks!
ASKER
Hi Michael,
Thanks for the response. The task is one of many "w3wp.exe" processes that's taking anywhere between 15% up to 30% of CPU utilization but as I'm typing this it's gone up to 60%.
We've recycled all the app pools but that doesn't make a dent in the CPU. Rebooting exchange resolves the issue for about 20 minutes then it's more of the same.
We tried opening a ticket with MSFT but they're being difficult. We've used our two support cases already so we're met with the below link when.
https://support.microsoft.com/en-us/help/4490370/professional-support-pay-per-incident-not-available-for-aad-accounts
So, I created an Outlook.com account specifically for this case. When I got to the point of payment, I get a generic "unable to complete payment, please try again later".
I'm going to keep at it with trying to open a ticket with MSFT while also combing the internet on this.
Thanks for the response. The task is one of many "w3wp.exe" processes that's taking anywhere between 15% up to 30% of CPU utilization but as I'm typing this it's gone up to 60%.
We've recycled all the app pools but that doesn't make a dent in the CPU. Rebooting exchange resolves the issue for about 20 minutes then it's more of the same.
We tried opening a ticket with MSFT but they're being difficult. We've used our two support cases already so we're met with the below link when.
https://support.microsoft.com/en-us/help/4490370/professional-support-pay-per-incident-not-available-for-aad-accounts
So, I created an Outlook.com account specifically for this case. When I got to the point of payment, I get a generic "unable to complete payment, please try again later".
I'm going to keep at it with trying to open a ticket with MSFT while also combing the internet on this.
Do you have large logfile growth as well? If so, taking a look at those logs with LogParser might help.
ASKER
Seems to be fairly significant log growth.
Never used LogParser but I just downloaded and installed. I'll give that a go and see what i find.
Thanks again Michael.
Bill
Never used LogParser but I just downloaded and installed. I'll give that a go and see what i find.
Thanks again Michael.
Bill
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TL;DR: I'm not aware of an issue like this. I can think of some diagnostics I might run, but calling MSFT is your best bet for a quick resolution.