Splunk Search

TRUCANTE Logs

andgarciaa
Explorer

Hello,

I am using Splunk Cloud, for some our sourcetypes we have defined specific TRUNCATE values. I have a couple of questions.

If `TRUNCATE` value is not defined for a sourcetype, what is the default limit of chars?

Is there any guideline document or rules on how to define TRUNCATE? Especially if it is recommended to set something higher than 50k or 80k chars as a limit.

0 Karma
1 Solution

gcusello
SplunkTrust
SplunkTrust

Hi @andgarciaa ,

you can find more infos at https://docs.splunk.com/Documentation/Splunk/9.2.1/Admin/Propsconf

and answering to your question:

TRUNCATE = <non-negative integer>
* The default maximum line length, in bytes.
* Although this is in bytes, line length is rounded down when this would
  otherwise land mid-character for multi-byte characters.
* Set to 0 if you never want truncation (very long lines are, however, often
  a sign of garbage data).
* Default: 10000

There isn't a general guideline: usually the TRUNCATE value is defined by the specific Add-On you're using and it's related to the technology you're using.

If you are ingesting a custom log, you have to choose the correct one by yourself.

Ciao.

Giuseppe

View solution in original post

gcusello
SplunkTrust
SplunkTrust

Hi @andgarciaa ,

you can find more infos at https://docs.splunk.com/Documentation/Splunk/9.2.1/Admin/Propsconf

and answering to your question:

TRUNCATE = <non-negative integer>
* The default maximum line length, in bytes.
* Although this is in bytes, line length is rounded down when this would
  otherwise land mid-character for multi-byte characters.
* Set to 0 if you never want truncation (very long lines are, however, often
  a sign of garbage data).
* Default: 10000

There isn't a general guideline: usually the TRUNCATE value is defined by the specific Add-On you're using and it's related to the technology you're using.

If you are ingesting a custom log, you have to choose the correct one by yourself.

Ciao.

Giuseppe

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!

Automated Threat Analysis: Available in ES Premier

Automated Threat Analysis: Centralize and Accelerate Phishing Investigations in Splunk Enterprise ...

What’s New in Splunk AI: Volume 02

Welcome to the second edition of “What’s New in Splunk AI” where we look at the latest and greatest updates, ...

Best Practices: Splunk auto adjust pipeline queue

When you enable autoAdjustQueue in Splunk, maxSize should be understood as the queue size Splunk starts with ...