Splunk Search

How replace host using a field

tamakg
Path Finder

Hi,

I'm trying to replace the host value using a field in the data. I tried to find any previous similar solution but it's not working.

A sample of the data is here:

'##REC##;WWWDBDW;3221912927;wwwdbdw1;x52wwwdb01.domain.com;11.2.0.4.0;Linux x86 64-bit;00008481;25-Aug-16 12:00:01;25.40;0.00;0.00;0.00;964278.51;0.00;2.55;4.06;1.59'

props.conf
[www_general_stats]
TRANSFORMS-host = www_host

transforms.conf
[www_host]
SOURCE_KEY = _raw
DEST_KEY = Metadata::Host
FORMAT = host::$1
REGEX = ^(?:[^;\n]*;){4}(?P[^;]+)

Can anyone help me here, please?

Tags (1)
0 Karma
1 Solution

cpetterborg
SplunkTrust
SplunkTrust

I don't know what is "not working" (could be that it isn't finding the host properly and thus assigning something else in the field, or not assigning the host at all - you didn't really specify that). I do see two problems, one which was answered by rjthibod already and the other is the DEST_KEY. One colon instead of two:

DEST_KEY = MetaData:Host

View solution in original post

0 Karma

cpetterborg
SplunkTrust
SplunkTrust

I don't know what is "not working" (could be that it isn't finding the host properly and thus assigning something else in the field, or not assigning the host at all - you didn't really specify that). I do see two problems, one which was answered by rjthibod already and the other is the DEST_KEY. One colon instead of two:

DEST_KEY = MetaData:Host
0 Karma

tamakg
Path Finder

The issue seems to be the upper case D of MetaData. Worked fine!

Thank you!

0 Karma

tamakg
Path Finder

AND the single colon...

0 Karma

rjthibod
Champion

You don't need the ?P part in your regex.

Use this instead: REGEX = ^(?:[^;\n]*;){4}([^;]+)

Get Updates on the Splunk Community!

Community Feedback

We Want to Hear from You! Share Your Feedback on the Splunk Community   The Splunk Community is built for you ...

Manual Instrumentation with Splunk Observability Cloud: Implementing the ...

In our observability journey so far, we've built comprehensive instrumentation for our Worms in Space ...

Celebrating Fast Lane: 2025 Authorized Learning Partner of the Year

At .conf25, Splunk proudly recognized Fast Lane as the 2025 Authorized Learning Partner of the Year. This ...