Deployment Architecture

How does Field discovery work on Search heads?

richnavis
Contributor

I have a Splunk Search head that gets data from a Splunk Server that is indexing IIS logs. When I Query on the Indexing Server, SPlunk Autodiscovers the IIS headers which allows me to query using those headers.

Example: index=iis sc_status="404".

However, the fields aren't autodiscovered on the search head, so the same query doesn't return any results. Does anyone know how to populate the autodiscovered IIS fields on a search head?

Tags (2)
0 Karma

hazekamp
Builder

rnavis,

By default Splunk applies a property called "KV_MODE = auto" which will extract keys and values separated by an equal (=) sign. In this case it should extract "sc_status". This would occur when searches are executed from the search head and distributed to the indexers, or the search is executed directly on the indexer.

There are a few things that would disable this:

  1. Setting "KV_MODE = none" on host/source/sourcetype
  2. Field discovery switch is set to off in search view (flashtimeline)
0 Karma
Get Updates on the Splunk Community!

Technical Workshop Series: Splunk Data Management and SPL2 | Register here!

Hey, Splunk Community! Ready to take your data management skills to the next level? Join us for a 3-part ...

Spotting Financial Fraud in the Haystack: A Guide to Behavioral Analytics with Splunk

In today's digital financial ecosystem, security teams face an unprecedented challenge. The sheer volume of ...

Solve Problems Faster with New, Smarter AI and Integrations in Splunk Observability

Solve Problems Faster with New, Smarter AI and Integrations in Splunk Observability As businesses scale ...