Knowledge Management

Field Extractraction problem ??

rakesh_498115
Motivator

Hi .

I have written the following regex in my query , then it is working fine but when i am trying to create this regex expression in the field extractor it is not coming in the query.

My regex expression ::

(?(?im)"(Request|Response)")

Query Used after creating field extractor ::

Sourcetype="mydata" | top Test

but this is not workin ..Please help ..

Tags (1)
0 Karma
1 Solution

lguinn2
Legend

First, the names of fields are case-sensitive. You created a field named "test" but then your top command used a field called "Test". That's never going to work.

Second, although your regular expression may be legal, I would have written it:

(?im)(?<test>"(?:Request|Response)") 

I have noticed that Splunk is sometimes finicky about non-capturing parenthesis; this regular expression is a bit clearer. And are the quotation marks actually in the data? Do you really need them for the regular expression?

View solution in original post

lguinn2
Legend

First, the names of fields are case-sensitive. You created a field named "test" but then your top command used a field called "Test". That's never going to work.

Second, although your regular expression may be legal, I would have written it:

(?im)(?<test>"(?:Request|Response)") 

I have noticed that Splunk is sometimes finicky about non-capturing parenthesis; this regular expression is a bit clearer. And are the quotation marks actually in the data? Do you really need them for the regular expression?

rakesh_498115
Motivator

No quotation marks are not need lginn .. thnx for the regular expression .this worked for me..:)

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!

[Puzzles] Solve, Learn, Repeat: Tiling

This puzzle (first published here) is based on finding groups of tessellated tiles (inspired by floor tiles I ...

SOK it to Me: Top 3 Benefits of Using Splunk Operator on Kubernetes that’ll Make ...

    Thursday, July 9, 2026  |  11:00AM–12:00PM PDT Duration: 1 hour (includes Q&A) Managing can feel like a ...

Upgrade Prep for 10.4, Network Observability Deep Dives, and More from Splunk Lantern

Splunk Lantern is Splunk’s customer success center that provides practical guidance from Splunk experts on key ...