Knowledge Management

How to extract field using rex command

philgopaul
New Member

Hi,

I have this sample log and I want to extract the request ID value after the period. Each of those numbers are unique in my log file.

Timeout sending message for request ID.140445678

I've tried various ways but cannot come up with working rex command that would extract those values as a field.

... | rex field=_raw "request <(?w+)>"

Any assistance would be awesome, thanks so much.

Tags (1)
0 Karma

woodcock
Esteemed Legend

Try this:

... | rex "(?<request>\d+)[\r\n\s]*$"
0 Karma

vinod94
Contributor

You can try this,

| makeresults 
| eval data="Timeout sending message for request ID.140445678" 
| rename data as _raw 
| rex "request\sID\.(?P<request_id>.*)"
0 Karma

renjith_nair
Legend

@philgopaul ,

Try

|rex field=_raw "request ID\.(?<request_id>\d+)"
---
What goes around comes around. If it helps, hit it with Karma 🙂
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!

Best Practices: Splunk auto adjust pipeline queue

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

Laser Bananas and Edge Hubs: Exploring Operational Technology (OT) Data Through a ...

  OT is a different environment to traditional IT and can have interesting challenges when interfacing the ...

Event Series: Mastering AI Tokenomics and Splunk Agent Observability

Beyond the Black Box: Correlating AI Performance and Tokenomics with Splunk Agent Observability   As ...