topic Re: Hivemanager NG 19.5.1.7 high cpu usage in Aerohive Migrated Content

Hivemanager NG 19.5.1.7 high cpu usage

mat_do — Thu, 05 Sep 2019 15:15:32 GMT

we have a hivemanager NG 19.5.1.7 with 127 AP130, we have for some times high cpu usage (10Ghz) all the time. is it normal behavior? how can we lower that? we plan to add 30 more APs, how will this impact performance? will we have even higher CPU usage?

Re: Hivemanager NG 19.5.1.7 high cpu usage

samantha_lynn — Thu, 05 Sep 2019 19:56:39 GMT

The APs are designed to use all of their CPU, so higher CPU isn't necessarily an issue. Are you noticing and issues with your client connections?

This will also depend on what the APs are doing, for instance if you have WIPS enabled, or are running Bonjour services, or have band steering enabled, etc.

You can run the command "show system process state" to see the top processes on an AP and how much of the APs CPU percentage those processes are taking up, to get a better idea of what the AP is doing.

Re: Hivemanager NG 19.5.1.7 high cpu usage

mat_do — Thu, 05 Sep 2019 21:24:17 GMT

i was talking about high CPU usage on HMNG, not the APs. 10ghz seems a bit too much

Re: Hivemanager NG 19.5.1.7 high cpu usage

samantha_lynn — Thu, 05 Sep 2019 22:29:34 GMT

My apologies, I misunderstood your question. Would you be able to send a screen shot of your :3000 page, specifically the resources tab? Also, how many APs are you using currently?

Could you also confirm your deployment meets all the recommendations listed here: http://docs.aerohive.com/330000/docs/help/english/ng/Content/reference/guides/qsg-virtual-appliance.htm

Finally, do you know if you're using a SAN deployment?

Re: Hivemanager NG 19.5.1.7 high cpu usage

mat_do — Thu, 05 Sep 2019 22:53:11 GMT

No problem!

127APs, we meet the requirements except no SSD : E5-2620 , 8 cpu thread, 24Go RAM

I had 24 cpu thread and 10Ghz cpu usage, when i switched to 8 thread, cpu usage lowered to 7Ghz

no san deployment.

Re: Hivemanager NG 19.5.1.7 high cpu usage

samantha_lynn — Fri, 06 Sep 2019 19:58:38 GMT

Thank you for that screen shot. That CPU is actually a bit lower than I would have expected for 127 devices, and 30 more devices shouldn't be an issue. We do recommend SSD though, if possible.