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Datapath CPU 21 - Utilization above threshold

Good afternoon,

 

Looking for some insight here. I already have a TAC case opened, but was hoping someone on here might have experienced something like this before and could provide some information. We are seeing numerous CPU spikes on a daily basis all coming from the fpapps process. I know fpapps is used for L2/L3 connectivity to the controller, but don't know what could be causing these constant spikes. They happen at random intervals, but are always exactly 60 seconds, up until recently we had a few that were 180 seconds. I'm hoping someone can help, below are the most recent logs:

 

May 25 12:33:55 :399838: <WARN> |fpapps| Resource 'Datapath CPU 21' has dropped below 70% threshold (actual:12%).
May 25 13:11:58 :399838: <WARN> |fpapps| Resource 'Datapath CPU 21' has exceeded 70% threshold (actual:97%).
May 25 13:12:58 :399838: <WARN> |fpapps| Resource 'Datapath CPU 21' has dropped below 70% threshold (actual:17%).
May 25 13:16:58 :399838: <WARN> |fpapps| Resource 'Datapath CPU 21' has exceeded 70% threshold (actual:96%).
May 25 13:17:58 :399838: <WARN> |fpapps| Resource 'Datapath CPU 21' has dropped below 70% threshold (actual:14%).
May 25 13:18:59 :399838: <WARN> |fpapps| Resource 'Datapath CPU 21' has exceeded 70% threshold (actual:92%).
May 25 13:19:59 :399838: <WARN> |fpapps| Resource 'Datapath CPU 21' has dropped below 70% threshold (actual:9%).
May 25 13:21:59 :399838: <WARN> |fpapps| Resource 'Datapath CPU 21' has exceeded 70% threshold (actual:99%).
May 25 13:24:59 :399838: <WARN> |fpapps| Resource 'Datapath CPU 21' has dropped below 70% threshold (actual:13%).
May 25 13:26:59 :399838: <WARN> |fpapps| Resource 'Datapath CPU 21' has exceeded 70% threshold (actual:99%).
May 25 13:29:59 :399838: <WARN> |fpapps| Resource 'Datapath CPU 21' has dropped below 70% threshold (actual:9%).
May 25 13:34:00 :399838: <WARN> |fpapps| Resource 'Datapath CPU 21' has exceeded 70% threshold (actual:99%).
May 25 13:35:00 :399838: <WARN> |fpapps| Resource 'Datapath CPU 21' has dropped below 70% threshold (actual:9%).

 

 

Controller is 7220 with AOS 6.3.1.16. Handling about 512 APs and around 3700 clients. This appears to have been happening for at least a month before it was noticed, not currently affecting client or APs, but don't want to get to that point.

 

Thanks.


Michael Haring
ACMP, ACCP, BCNE, CCENT, Palo Alto ACE 7.0
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