Monitoring Splunk

Why check log file was not updated for more than 5 mins?

jenniferhao
Explorer

I have a log file which should be updated in every min, but some time service hung, so the file cannot get update. Need to send an alert: if the file wasn't updated more than 5mins.
But tried with the following different ways, the results seems not accurate. Any idea? Thanks.

I did:

index=abcapp source=abc.log"
| sort _time
|streamstats window=2 range(_time) as timediff
|table timediff _time
|eval alert=if(timediff>=5,1,0)
|where alert=1

OR
index=abcapp source="abc.log"
| sort _time
| delta _time as timediff
| eval alert = if(timediff>5,1,0)
|where alert =1

OR
index=abcapp source="abc.log" earliest=-5m latest=now
|stats count as num
| eval alert = if(num=0,1,0)
|where alert =1

Labels (2)
Tags (2)
0 Karma

PickleRick
SplunkTrust
SplunkTrust
| tstats max(_time) as _time where index=abcapp earliest=-20m
|where _time<now()-300

 

You can adjust the windows (earliest= parameter). Might not return proper values if you have some invalid timestamps from the future in your undex (didn't test for it though).

jenniferhao
Explorer

Thanks for helping, this works. 

0 Karma
Get Updates on the Splunk Community!

Observability protocols to know about

Observability protocols define the specifications or formats for collecting, encoding, transporting, and ...

Take Your Breath Away with Splunk Risk-Based Alerting (RBA)

WATCH NOW!The Splunk Guide to Risk-Based Alerting is here to empower your SOC like never before. Join Haylee ...

Industry Solutions for Supply Chain and OT, Amazon Use Cases, Plus More New Articles ...

Splunk Lantern is a Splunk customer success center that provides advice from Splunk experts on valuable data ...