Controller Based WLANs

Resource 'Controlpath CPU' has exceeded 30% threshold (actual: X%)

by on ‎07-02-2014 03:47 PM
Question   What are the following logs “ Resource 'Controlpath CPU' has exceeded 30% threshold (actual: X%) mean on controller running 6.2.x code?
Does it mean controller running into High cpu usage?

 

This article applies to ArubaOS 6.2.x

 
process monitor log
 

Aug 21 12:09:40 129.82.110.252 fpapps[1823]: <399838> <WARN> <CSU-Aruba-3 10.100.201.8>  Resource 'Datapath CPU 9' has exceeded  30%  threshold (actual:49%).
Aug 21 12:10:42 129.82.110.252 fpapps[1823]: <399838> <WARN> <CSU-Aruba-3 10.100.201.8>  Resource 'Datapath CPU 9' has dropped below  30%  threshold (actual:0%).
Aug 21 12:17:53 129.82.110.252 nanny[1753]: <399838> <WARN> <CSU-Aruba-3 10.100.201.8>  Resource 'Controlpath CPU' has exceeded  30%  threshold (actual:32%).
Aug 21 12:18:53 129.82.110.252 nanny[1753]: <399838> <WARN> <CSU-Aruba-3 10.100.201.8>  Resource 'Controlpath CPU' has dropped below  30%  threshold (actual:11%).
Aug 21 12:22:53 129.82.110.252 nanny[1753]: <399838> <WARN> <CSU-Aruba-3 10.100.201.8>  Resource 'Controlpath CPU' has exceeded  30%  threshold (actual:34%).
 
 
The log messages were introduced on 6.2.x code stream this is in order to bring visibility into controller thresholds, and the threshold message indicates the high CPU utilization  however having high CPU utilization at times is acceptable during peak hours
 
Let’s say during Morning, when lot of users come online,  conference rooms  high CPU utilization  is expected .
 
Only if we are having the CPU utilization high for longer duration of time, we might  need to look at which processes are taking CPU cycles by collecting CPU related outputs,
 
#show cpuload
#show cpuload current
#show processes sort-by CPU
#show process monitor statistics
#show memory
#show storage

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