topic Re: High cpu usage on connection servers in Horizon Desktops and Apps

High cpu usage on connection servers

vivekrishna — Fri, 19 Nov 2021 04:29:24 GMT

Hi team,

We are getting high cpu usage in connection servers.

Ws_tomcatservice is consuming the memory and I have disable saml in connection server as per some VMware article

Still cpu usage is high. The version of horizon is 7.13

Please help

Re: High cpu usage on connection servers

fabio1975 — Mon, 22 Nov 2021 16:02:28 GMT

Ciao

I guess you have isolated the process or processes that make you increase CPU usage what are they? (if you haven't, this might be a good place to start)
Does the problem occur at particular times of the day?

Re: High cpu usage on connection servers

sjesse — Mon, 22 Nov 2021 18:47:55 GMT

Have you restarted them and they still have high cpu?

Re: High cpu usage on connection servers

vivekrishna — Wed, 24 Nov 2021 08:29:53 GMT

When restarted the consumption goes low and after 8 hours the same issue reoccurs.

Re: High cpu usage on connection servers

vivekrishna — Wed, 24 Nov 2021 08:30:18 GMT

Yes, its the ws_tomcatservice taking the CPU /memory

Re: High cpu usage on connection servers

JohnTwilley — Wed, 29 Dec 2021 20:03:19 GMT

Did you determine Root Cause on you Connection Servers? Looks like I'm having the same type of issue on mine.

Re: High cpu usage on connection servers

JohnTwilley — Wed, 12 Jan 2022 14:20:01 GMT

Our High CPU load issue was due to a bug in ControlUP. There are two bugs at this time: (as of Jan 2022)

1) Monitor nVidia API bug with the specific nVidia Drivers we are running in production (Hosts & VMs).

2) LDAP delays for user specific metrics for large AD environments.

Re: High cpu usage on connection servers

ymagalif — Sat, 15 Jan 2022 06:19:11 GMT

All,

A common cause of high CPU on Connection servers in my experience is not having proper antivirus exclusions for the Connection servers. If you have multiple security products, make sure you do exclusions in all of them:

https://kb.vmware.com/s/article/2082045

Sincerely,

Yury Magalif

Re: High cpu usage on connection servers

Julien_Nury — Sat, 02 Apr 2022 14:14:41 GMT

Hi @JohnTwilley ,

We have the same problem (high CPU usage) and use ControlUP. Do you know if these issues have been solved by ControlUP ? Have you any reference on these ControlUP bugs ?