Splunk Search

Rex to filter To remove multiline log entry

Tijil480
Observer

Please find the below single Log entry with multiple lines:

>Validation results 

   Message 1) sucess: true 

   Message 2) sucess: false 

   Reason : All is an invalid log event type 

   Message 3) sucess: true 

......

Need rex to fetch only false with reason lines.

Remaining needs to be ignored.

Tried below rex not getting proper results.

|Rex field=_raw "(?ms)(?<result>(.*)(?:true)"|table result

 

Labels (1)
0 Karma

richgalloway
SplunkTrust
SplunkTrust

Try this

| rex "(?<result>false[\s\S]*)Message"
| table result
---
If this reply helps you, Karma would be appreciated.
0 Karma

Tijil480
Observer

Still it fetches sucess: true 

 

0 Karma

richgalloway
SplunkTrust
SplunkTrust

regex101.com disagrees. https://regex101.com/r/deZogv/1

---
If this reply helps you, Karma would be appreciated.
0 Karma

ITWhisperer
SplunkTrust
SplunkTrust

To just get the reason:

| rex "(?ms)sucess: false[^\n]\n(?<field>[^\n]+)"

To get both lines:

| rex "(?ms)(?<field>[^\n]+sucess: false[^\n]+\n[^\n]+)"

 

0 Karma

Tijil480
Observer

Both queries are not returning any reaults

0 Karma

ITWhisperer
SplunkTrust
SplunkTrust

Perhaps if you could share some more realistic log data (anonymised of course) it might help us work out what may be going wrong

0 Karma

ITWhisperer
SplunkTrust
SplunkTrust

Did you try this?

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!

Meet Splunk Observability Studio: AI-Assisted OpenTelemetry Instrumentation Without ...

Instrumentation is usually the last step or even an afterthought when building out a project. The feature ...

Federated Search for Cisco Security and Analytics Logging (SAL) is now GA on Splunk ...

Federated Search for Cisco  Security Analytics and Logging (SAL) is now generally available as part of the ...

Your Path to AgenticOps: AI Experiences for Every Splunk Practitioner

Your Path to AgenticOps: AI Experiences for Every Splunk Practitioner   Join us for a demo-driven look at how ...