Splunk Search

How to Use IF or Case condition

alex5441
Explorer

Hi,

My logs are in following format:

{[-]

logger: .......

message: ..........

severity: Error

}

{[-]

exception: .........

logger: .......

message: ..........

severity: Error

}

my query is :

........| rex "\"exception\":\"(<ErrorMsg>.*?)\"" | table Application, ErrorMsg

 

The issue:

As some app logs have key "message" and some logs have both "exception" and "message".

How can I change my query that first it checks if there is key exception, if it does get the value of that key. If there is no Key exception check if there is key "message", if it does get the value of that.

My current query is able to get the value of exception (if I change exception to message, it gets the value of message. But trying to implement IF or CASE condition here) 

Labels (2)
0 Karma

ITWhisperer
SplunkTrust
SplunkTrust

Try something like:

| rex "(\"exception\":\"(?<ErrorMsg>.*?)\"|\"message\":\"(?<Message>.*?)\")"
0 Karma

alex5441
Explorer

Thank you ITWhisperer,

But I am getting error in compile:

error.PNG

 

0 Karma

ITWhisperer
SplunkTrust
SplunkTrust

Try with different names as in my example

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 ...