Splunk Search

Lookup file question

yooitsgreg
New Member

I am wanting to use a lookup file to drive search for an alert.  This seems a bit unique as I am not wanting to use event data from results to drive the lookup, but rather have all the lookup entries dynamically added to the search itself. Below is the example use-case:

CSV file example:
Index, ErrorKey
"index1","Error string 1"
"index1","Error string 2"
"index2","Error string 3"

Looking to use it to scale a search like this:

index=index1 OR index=index 2 ("Error string 1" OR "Error string 2" OR "Error string 3")

Basically the index/error string combo could be managed in the csv file as opposed to the alert search itself. Making it easier to add/scale/maintain the search criteria. Is this possible?

Labels (1)
0 Karma

ITWhisperer
SplunkTrust
SplunkTrust

It is not clear what your requirement is - from 

Index, ErrorKey
"index1","Error string 1"
"index1","Error string 2"
"index2","Error string 3"

do you want

(index=index1 AND ErrorKey="Error string 1") OR (index=index1 AND ErrorKey="Error string 2") OR (index=index2 AND ErrorKey="Error string 3") - three combinations

Or

(index=index1 AND ErrorKey="Error string 1") OR (index=index1 AND ErrorKey="Error string 2") OR (index=index1 AND ErrorKey="Error string 3") OR (index=index2 AND ErrorKey="Error string 1") OR (index=index2 AND ErrorKey="Error string 2") OR (index=index2 AND ErrorKey="Error string 3") - six combinations

The first version maintains the combinations from the csv file, whereas the second version is closer to your "expanded" search

Also, instead of searching for the ErrorKey field in your events being equal to the string from the csv file, do you want to search for the string anywhere in the raw event (as your expanded search seems to suggest)?

0 Karma

yooitsgreg
New Member

Sorry for the confusion. Option 1 I believe is what I am looking for with the 3 combinations:

(index=index1 AND ErrorKey="Error string 1") OR (index=index1 AND ErrorKey="Error string 2") OR (index=index2 AND ErrorKey="Error string 3")

I am wanting to search for the string anywhere in the raw event. ErrorKey is not a field value in the events and not possible to create this field as the error string in the result data is not standardized.

Thank you for your reply

 
 





Tags (1)
0 Karma

ITWhisperer
SplunkTrust
SplunkTrust

Try something like this

[|inputlookup file.csv
| rename Index as index
| rename ErrorKey as query
| fields index query
| format]

You may need to remove some double quotes

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!

Deep Dive: Accelerate threat investigation with Splunk’s AI Assistant in Security

AI is one of the biggest topics in the market today, and for security teams, its value goes far beyond the ...

Announcing Modern Navigation: A New Era of Splunk User Experience

We are excited to introduce the Modern Navigation feature in the Splunk Platform, available to both cloud and ...

Detection Engineering Office Hours: Real-World Troubleshooting & Q&A

[REGISTER HERE] This thread is for the Community Office Hours session on Detection Engineering Office Hours: ...