topic How to write a search query for CPU in Alerting

How to write a search query for CPU

jackin — Tue, 01 Mar 2022 08:49:20 GMT

Hi,

I am trying to create a alert for cpu usage by using below query,

index=os host=cbtsv 
| stats latest(*) as * by host
| table _time cpu_load_percent cpu_user_percent 
| eval CPU=cpu_load_percent+cpu_user_percent|stats avg(CPU) as percent by host

here Ii am trying to add 2 fields (CPU=CPU load + cpu user)
but it is not giving results as expected
I want an alert to be triggered when Avg value of CPU=(cpu_load + cpu user) exceeds 90%.
How do I set the alert to meet the conditions above?

Final output like

Timestamp	Hostname	CPU	Status
28/02/2022 21:58:00	cbtsv	90%	Critical

Re: How to write a search query for CPU

gcusello — Tue, 01 Mar 2022 08:53:07 GMT

Hi @jackin,

I suppose that you're taking logs using the Splunk_TA-nix.

Anyway, please try a search like this:

index=os host=cbtsv | stats avg(cpu_load_percent) as cpu_load_percent avg(cpu_user_percent) AS cpu_user_percent BY host | eval CPU=cpu_load_percent+cpu_user_percent | table host CPU

Ciao.

Giuseppe

Re: How to write a search query for CPU

somesoni2 — Tue, 01 Mar 2022 14:37:45 GMT

Give this a try

index=os host=cbtsv | table _time cpu_load_percent cpu_user_percent | stats max(_time) as _time avg(cpu_load_percent) as cpu_load_percent avg(cpu_user_percent) AS cpu_user_percent by host | eval CPU=cpu_load_percent+cpu_user_percent | where CPU>90 | eval Status="Critical" | eval CPU=CPU."%" rename host as Hostname | table _time Hostname CPU Status