Alerting

cron schedule on past 7 days search

kokanne
Communicator

Hello,

I applied a scheduled search to one of my reports that counts the MB usage of the past 7 days, and compares it to the 7 days prior to that.

It was indicating around 6000 with a trendline of +120%
After applying the schedule, it is indicating 413 with a decrease of -83%

Now this is weird, how is it possible that the cron schedule altered the outcome?

It is schedule to refresh every 30 minutes

0 Karma

ypeng_splunk
Splunk Employee
Splunk Employee

Pls post the savedsearches.conf

0 Karma

damiensurat
Contributor

Could you please share the cron expression and time range for the scheduled search?

0 Karma

kokanne
Communicator

Dont have access to this

0 Karma

ypeng_splunk
Splunk Employee
Splunk Employee

then post the search.

0 Karma

somesoni2
Revered Legend

Along with time range used.

0 Karma

kokanne
Communicator

search:

index="network" sourcetype="network:proxy" 
| timechart span=1h eval(sum(bytes)/1024/1024) as totMBs

Time range 7 days
Visual is single value compared to 7 days before

0 Karma

Richfez
SplunkTrust
SplunkTrust

I think those settings might make a single-value visualization (lol, which has two values on it!) compare the most recent hour with the previous hour? Your results would seem to sort of possibly fit with that.

So try this:

index="network" sourcetype="network:proxy" earliest=-2w@w 
| timechart span=1w eval(sum(bytes)/1024/1024) as totMBs

Keep in mind that compares the last full week's data to this week so far, which could be only the first days's worth of data from this week.

Better, perhaps, may be to press timewrap into service? The Usage and Basic Example section is pretty close to what you need, just that you have a slightly different base search.

0 Karma
Get Updates on the Splunk Community!

Stay Connected: Your Guide to May Tech Talks, Office Hours, and Webinars!

Take a look below to explore our upcoming Community Office Hours, Tech Talks, and Webinars this month. This ...

They're back! Join the SplunkTrust and MVP at .conf24

With our highly anticipated annual conference, .conf, comes the fez-wearers you can trust! The SplunkTrust, as ...

Enterprise Security Content Update (ESCU) | New Releases

Last month, the Splunk Threat Research Team had two releases of new security content via the Enterprise ...