Getting Data In

Does data indexed and forwarded from a heavy forwarder count against the Splunk data license?

mookiie2005
Communicator

We have a Heavy forwarder load balancing data feeds from a TCP/UDP feeds to the two indexers we are using. My question is does the data indexed and then forwarded from the heavy forwarder to either indexer count against the Splunk license? This would basically charge the customer twice to index the same data. Once at the heavy forwarder and than again at the indexers. Would this change if the IndexandForward attribute was set to false?

1 Solution

kristian_kolb
Ultra Champion

Yes. A heavy forwarder is essentially an indexer, where indexing has been turned off. Turning it back on, like with indexAndForward, will require a license in order to make the events searchable on that machine.

As for charging for indexing the same data twice, that used to be one of the ways to make a Splunk installation more HA/DR-like, and I believe that you could get some sort of license discount for those types of scenarios. Since version 5, there is index replication to cater for that need (which lets your indexers make copies already indexed data at no extra cost, apart from the extra storage required).

Setting indexAndForward=false would let your Heavy Forwarder act as just that.

Hope this clarifies things a bit,

K

View solution in original post

kristian_kolb
Ultra Champion

Yes. A heavy forwarder is essentially an indexer, where indexing has been turned off. Turning it back on, like with indexAndForward, will require a license in order to make the events searchable on that machine.

As for charging for indexing the same data twice, that used to be one of the ways to make a Splunk installation more HA/DR-like, and I believe that you could get some sort of license discount for those types of scenarios. Since version 5, there is index replication to cater for that need (which lets your indexers make copies already indexed data at no extra cost, apart from the extra storage required).

Setting indexAndForward=false would let your Heavy Forwarder act as just that.

Hope this clarifies things a bit,

K

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!

Agentic SOC Triage: Investigating Splunk ES Notables with MCP Server and a Local LLM

The Problem: Too Many Alerts, Too Little Context Security operations teams running Splunk Enterprise Security ...

All Work and No Play? Not at .conf26! Unwind at These Evening Events

Between hands-on technical sessions, keynote reveals, and diving into live architectures, .conf26 is packed ...

Join the Hackathon at .conf26 and build a No-Code AI agent

Join us for the AI Agent Buildathon, an in-person, three-hour hands-on Hackathon where you’ll use Splunk Agent ...