Splunk Search

Field Extraction problem

bfernandez
Communicator

I am trying to extract some data from a script output.
Sample:
SERVICE_NAME: WebTrends - Data Retention Service
DISPLAY_NAME: WebTrends - Data Retention Service
TYPE : 10 WIN32_OWN_PROCESS

STATE : 1 STOPPED
WIN32_EXIT_CODE : 0 (0x0)
SERVICE_EXIT_CODE : 0 (0x0)
CHECKPOINT : 0x0
WAIT_HINT : 0x0
I have checked successfully the Generated pattern (regex) with the Interactive Field Extractor and also using a query.
index=main sourcetype="services_monitoring_status" | head 10000 | rex "(?i)SERVICE_NAME: (?P.+)"
But curiously if I save this regex as a Field extraction doesn’t work…because not only take the name. It takes all the rest of the event, not break at the end of the line.
Expected behavior:
Namefield = WebTrends - Data Retention Service
Incorrect behavior:
Namefield= WebTrends - Data Retention Service DISPLAY_NAME: WebTrends - Data Retention Service TYPE : 10 WIN32_OWN_PROCESS STATE : 1 STOPPED WIN32_EXIT_CODE : 0 (0x0) SERVICE_EXIT_CODE : 0 (0x0) CHECKPOINT : 0x0 WAIT_HINT : 0x0
So How is possible this differents behavior doing the same?

Tags (3)
0 Karma

hjwang
Contributor

try this

rex "(?i)SERVICE_NAME:\s+(?P<fieldname>.+)([\r\n\s]+)"
0 Karma

bfernandez
Communicator

This regex in a query works as well

index=main sourcetype="services_monitoring_status" | head 10000 | rex "(?i)SERVICE_NAME:\s+(?P.+)([\r\n\s]+)"

But If I save it as a field extraction in the console, it returns the same wrong values…as mine

(?i)SERVICE_NAME:\s+(?P.+)([\r\n\s]+)

Is strange that could returns different results depending on how you apply the regex.

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!

Cisco Data Fabric from Architecture to Investigation, Better SOC Visibility, and More ...

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

The Trust Gap: Why a Data Foundation is Fundamental to an Agentic Enterprise

The Trust Gap: Why a data foundation is fundamental to an  Agentic Enterprise.   Agentic AI is transforming ...

Data Management Digest – September 2026

    Welcome to the September 2026 edition of Data Management Digest! September brought a fresh wave of ...