Getting Data In

Loadbalancer or intermediate forwarder?

melonman
Motivator

Hi

I have many of universal forwarders that send (autoLB) events to multiple indexers in distributed search mode.
Now I am thinking to put 2 intermediate forwarders OR 2 load-balancers between universal forwarders and indexers.

Question:
Is it safe to use load-balancers between universal forwarders and indexers?
What is the best practice for this?

Thank you in advance..

0 Karma
1 Solution

esix_splunk
Splunk Employee
Splunk Employee

While you can use a load balancer between the UF and Indexers, why? The UF's have load balancing functionality built in via the outputs. Unless you are trying to redirect traffic to different indexers from specific ip/host ranges. That would be the only benefit.

Intermediate Forwarders are in best practices. They'll buffer if indexers or connections are down, and allow parsing / routing offloads in case of loads on indexers.

View solution in original post

esix_splunk
Splunk Employee
Splunk Employee

While you can use a load balancer between the UF and Indexers, why? The UF's have load balancing functionality built in via the outputs. Unless you are trying to redirect traffic to different indexers from specific ip/host ranges. That would be the only benefit.

Intermediate Forwarders are in best practices. They'll buffer if indexers or connections are down, and allow parsing / routing offloads in case of loads on indexers.

melonman
Motivator

Thank you!

0 Karma
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!

Make Your Machine Data AI-Ready in Splunk

Every team is getting ready for AI agents.   Thursday, November 12, 2026  |  11AM  PST / 2PM EST   ...

Splunk Asynchronous Forwarding Explained

Splunk asynchronous forwarding is often misunderstood as simply setting autoLBVolume. That is not quite right. ...

How to Monitor AI Agents with Splunk Agent Observability

Let’s say I’m running a travel planning AI app in production. A user asks for three concise hotel options in ...