Splunk Search

Set Field=Value when Field not present in some logs

bcarr12
Path Finder

Hi all,

I am running a search that in some cases has:
Field=Values

In other cases, Field is completely missing from logs (this is expected).

What would be the best way to set Field equal to the Value when one is present, but if the Field does not exist in a given log line, Field should be set to the word "none"?

I've tried the coalesce command, but it doesn't seem to be working - maybe it is just being used incorrectly?
eval NewField=coalesce(Field,"none")

In the above example, NewField is always equal to "none" - even when Field includes a value.

Tags (1)
0 Karma
1 Solution

alemarzu
Motivator

Heya, or try this.

... | fillnull value=none field1,field2,field3

View solution in original post

0 Karma

bcarr12
Path Finder

Thank you both for your suggestions! alemarzu, fillnull worked great for this!

0 Karma

alemarzu
Motivator

Heya, or try this.

... | fillnull value=none field1,field2,field3
0 Karma

cmerriman
Super Champion

try this:

|eval Field=if(isnull(Field),"none",Field)
0 Karma
Got questions? Get answers!

Join the Splunk Community Slack to learn, troubleshoot, and make connections with fellow Splunk practitioners in real time!

Meet up IRL or virtually!

Join Splunk User Groups to connect and learn in-person by region or remotely by topic or industry.

Get Updates on the Splunk Community!

Thanks for the Memories: .conf26 Took Learning to New Heights

Thank you, Splunk Community, for making .conf26 in Denver one for the books. From packed Splunk University ...

Best Practices: Splunk auto adjust pipeline queue

When you enable autoAdjustQueue in Splunk, maxSize should be understood as the queue size Splunk starts with ...

Splunk Auto Ingestion Parallel Pipeline Scaling

Why this feature matters Many Splunk environments experience ingestion pressure long before the host is fully ...