Getting Data In

Why is eval in props.conf not performing in a particular order?

atulpatel
Explorer

Below is my props.conf stanza please check I'm getting all fields except uid, even the url field which has similar extraction mechanism.

[my_sourcetype]
....
EVAL-message_id = mid
EVAL-url = substr(xurl, 0, 15)
EVAL-uid = substr(message_id, 0, 5)

0 Karma
1 Solution

VatsalJagani
SplunkTrust
SplunkTrust

Hello @atulpatel
Try this:

[my_sourcetype]
....
EVAL-message_id = mid
EVAL-url = substr(xurl, 0, 15)
EVAL-uid = substr(mid, 0, 5)

In your case it is not working because in props.conf all EVALs in a stanza execute parallel.

Hope this helps!!!

View solution in original post

VatsalJagani
SplunkTrust
SplunkTrust

Hello @atulpatel
Try this:

[my_sourcetype]
....
EVAL-message_id = mid
EVAL-url = substr(xurl, 0, 15)
EVAL-uid = substr(mid, 0, 5)

In your case it is not working because in props.conf all EVALs in a stanza execute parallel.

Hope this helps!!!

atulpatel
Explorer

Yeah I got it.

0 Karma

FrankVl
Ultra Champion

Evals are not performed in any particular order. You cannot do an eval that depends on another eval.

You will need do EVAL-uid = substr(mid, 0, 5).

Or replace EVAL-message_id = mid by FIELDALIAS-mid_as_message_id = mid AS message_id. Field aliasing is performed after field extraction, but before calculated fields (EVAL-* statements), so you can use the message_id alias in your EVAL-uid.

atulpatel
Explorer

I understand that all EVALs don't have any order.

0 Karma
Get Updates on the Splunk Community!

SOC4Kafka - New Kafka Connector Powered by OpenTelemetry

The new SOC4Kafka connector, built on OpenTelemetry, enables the collection of Kafka messages and forwards ...

Your Voice Matters! Help Us Shape the New Splunk Lantern Experience

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

Building Momentum: Splunk Developer Program at .conf25

At Splunk, developers are at the heart of innovation. That’s why this year at .conf25, we officially launched ...