Splunk Search

How do I automatically run mvexpand on a field?

daniel333
Builder

All,

I run this search -

index=main  | makemv PCIDSS delim=","

I'd like to be automatically expanded instead. But I don't see how I would do this in props.conf

0 Karma
1 Solution

lguinn2
Legend

For a multi-valued field extraction, you must use transforms.conf in conjunction with props.conf.
Since you are not showing us how you got the PCIDSS field to begin with, I can't show exactly how this should be set up. But in addition to any other field extractions you may have, you should do this in props.conf

[yoursourcetypehere]
#other field extractions
REPORT-ep = extract-PCIDSS

in transforms.conf

[extract-PCIDSS]
REGEX = <regular expression>
MV_ADD = true
# and other settings...

You should look at the documentation for transforms.conf. Depending on your actual data, there could be many ways to accomplish what you want. For example there is a way to Configure multivalue fields with fields.conf - although I have not done it that way myself.

View solution in original post

0 Karma

lguinn2
Legend

For a multi-valued field extraction, you must use transforms.conf in conjunction with props.conf.
Since you are not showing us how you got the PCIDSS field to begin with, I can't show exactly how this should be set up. But in addition to any other field extractions you may have, you should do this in props.conf

[yoursourcetypehere]
#other field extractions
REPORT-ep = extract-PCIDSS

in transforms.conf

[extract-PCIDSS]
REGEX = <regular expression>
MV_ADD = true
# and other settings...

You should look at the documentation for transforms.conf. Depending on your actual data, there could be many ways to accomplish what you want. For example there is a way to Configure multivalue fields with fields.conf - although I have not done it that way myself.

0 Karma

daniel333
Builder

Thanks @Anonymous

I guess I am not understanding why I would need to do a regex. I don't see how I specify the delimited here.

So it's probably worth mentioning that the field PCIDSS is just appended at search time for documentation purposes.

props.conf

EVAL-PCIDSS = "11.1.a,11.1.b,11.1.c,11.1.d,11.1.1,11.1.2.a,11.1.2.b"

I tried this a few ways

[extract-PCIDSS]
SOURCE_KEY = PCIDSS
MV_ADD = true

[extract-PCIDSS]
SOURCE_KEY = PCIDSS
MV_ADD = true
regex = .*

[extract-PCIDSS]
SOURCE_KEY = PCIDSS
MV_ADD = true
regex= PCIDSS=(?

0 Karma

daniel333
Builder

Good call on the fields.conf method, worked like a charm

[PCIDSS]
TOKENIZER = ([^\,]+)

0 Karma
Get Updates on the Splunk Community!

Splunk Observability Cloud's AI Assistant in Action Series: Auditing Compliance and ...

This is the third post in the Splunk Observability Cloud’s AI Assistant in Action series that digs into how to ...

Splunk Community Badges!

  Hey everyone! Ready to earn some serious bragging rights in the community? Along with our existing badges ...

What You Read The Most: Splunk Lantern’s Most Popular Articles!

Splunk Lantern is a Splunk customer success center that provides advice from Splunk experts on valuable data ...