Splunk Search

How do I extract a field from another field?

rohinisb91
Observer

I have an event in the following format

2018-12-10 15:15:40 [Thread-34-TestBolt-executor[4 4]] INFO  com.learn.code.StringQ.execute:67 - Bolt=StringQBolt | source=XYZ | dom=xyz| groupId=21239 | npid=ABC

These are already part of the "message" field. How do I extract npid, groupId, dom, source as different fields? These should be extracted as fields going forward.

Any pointers are appreciated!

Tags (2)
0 Karma

saurabhkharkar
Path Finder
| makeresults 
| eval message="2018-12-10 15:15:40 [Thread-34-TestBolt-executor[4 4]] INFO  com.learn.code.StringQ.execute:67 - Bolt=StringQBolt | source=XYZ | dom=xyz| groupId=21239 | npid=ABC"
|rex field=message ".*Bolt\=(?<Bolt>[^\|]+)"
|rex field=message ".*source\=(?<source>[^\|]+)" 
|rex field=message ".*dom\=(?<dom>[^\|]+)" 
|rex field=message ".*groupId\=(?<groupId>[^\|]+)" 
|rex field=message ".*npid\=(?<npid>[^\|]+)" 
|table message Bolt source dom groupId npid
0 Karma

adonio
Ultra Champion

hello there:

runt this search anywhere:

| makeresults count=1
| eval _raw = "2018-12-10 15:15:40 [Thread-34-TestBolt-executor[4 4]] INFO  com.learn.code.StringQ.execute:67 - Bolt=StringQBolt | source=XYZ | dom=xyz| groupId=21239 | npid=ABC"
| rex field=_raw "(?<time>\d{4}\-\d{2}\-\d{2}\s\d{2}\:\d{2}\:\d{2})\s+\[(?<something>[^\[]+)\[(?<some_digits>[^\]]+)\]\]\s+(?<log_level>[^\s]+)\s+(?<some_fqdn_maybe>[^\:]+)\:(?<maybe_port>\d+)\s\-\s(?<everything_elde>.+)"
| extract pairdelim="|", kvdelim="=:"

to make it permanent use props.conf
you can also use the interactive field extractor

hope it helps

ddrillic
Ultra Champion

Something in the spirit of .*source=(?<source>\w*).*dom=(?<dom>\w*)...

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!

A Four-Part Event Series: Full Stack Observability For the AI Era

As AI reshapes applications, infrastructure, and the way teams operate, the traditional boundaries of ...

SOC4Kafka - New Kafka Connector Powered by OpenTelemetry

The new SOC4Kafka connector, built on OpenTelemetry, enables the collection of Kafka messages and forwards ...

Event Series: Level up your SOC: Advancing with Splunk Enterprise Security

AI has fundamentally raised the stakes for security operations, and this three-part series is your guide to ...