Knowledge Management

Knowledge bundle size issues

Path Finder

Hi All,

I have this error message on the SH in Splunk:

Knowledge bundle size=3525MB exceeds max limit=2048MB. Distributed searches are running against an outdated knowledge bundle. Please remove/disable files from knowledge bundle or increase maxBundleSize in distsearch.conf.


What I did is increase the maxBundleSize in distsearch.conf :
I did this command on the server:
/opt/splunk/bin/splunk btool distsearch list --debug | grep maxBundleSize
and the result is:
/opt/splunk/etc/system/default/distsearch.conf                  maxBundleSize = 2048
So inside the /opt/splunk/etc/system/local/distsearch.conf I added the:

maxBundleSize = 4000

Restarted Splunk, and noticed that the first error message is gone, but a new Yellow warning appeared:

The current bundle directory contains a large lookup file that might cause bundle replication fail. The path to the directory is /opt/splunk/var/run/



So I went to this path to check what is going on there:
cd /opt/splunk/var/run


I have found 2 large files and one medium.
Can someone please advise me on what to do past this point? 

I have found someone posted to check the below search:
index =_internal sourcetype=splunkd component=Archiver Archiving large_file=*
| stats count latest(size_in_bytes) by large_file


I don't know if this has any relation to the subject.

Please note that my Splunk environment is not a cluster.


Labels (1)
Tags (2)
0 Karma


Look inside the large bundle files (they're just tarballs) to see what's making them so large.  It's probably one or more huge lookup files.  Make sure the lookups are expected to be that big as it's possible a bad search is appending rather than replacing data in the lookup.

If the lookup needs to be that large then remove it from the replication bundle ([repicationDenyList] in distsearch.conf) and distribute it to the indexers via another method.

If this reply helps you, Karma would be appreciated.
Get Updates on the Splunk Community!

Routing logs with Splunk OTel Collector for Kubernetes

The Splunk Distribution of the OpenTelemetry (OTel) Collector is a product that provides a way to ingest ...

Welcome to the Splunk Community!

(view in My Videos) We're so glad you're here! The Splunk Community is place to connect, learn, give back, and ...

Tech Talk | Elevating Digital Service Excellence: The Synergy of Splunk RUM & APM

Elevating Digital Service Excellence: The Synergy of Real User Monitoring and Application Performance ...