All Apps and Add-ons

Kafka Messaging Modular Input: How to set up multiple heavy forwarder agents on the same server to pull from the same Kafka topic?

pcressy
Engager

I tried to set up multiple heavy forwarder agents on the same server pulling from a Kafka topic, but it appeared as if only one agent would take any load (I was monitoring agent via top cmd, java cpu load, maybe there is a better method, say via index=_internal?). I've done a similar thing with jms with success, but I wasn't able to get past 300 tps. I haven't tried the same thing over multiple servers yet, but I'm wondering if there is a obvious setting, maybe in the inputs.conf that I need to modify.

0 Karma

Damien_Dallimor
Ultra Champion

What does your Kafka configuration (from inputs.conf) look like ?

Also, try the latest release of the Kafka Mod Input.It should perform better with the new HEC output option.

http://blogs.splunk.com/2015/09/22/turbo-charging-modular-inputs-with-the-hec-http-event-collector-i...

0 Karma

pcressy
Engager

Thanks for the reply I'll try 8.1
here is the inputs.conf I'm currently using
[kafka://tsys_kafka_10.xxxx]
group_id = splunk
index = tsys
sourcetype = tsys_kafka
topic_name = splunk_auth_stream
zookeeper_connect_host = 10.xxxx
zookeeper_connect_port = 2181

[kafka://tsys_kafka_10.xxxx]
group_id = splunk
index = tsys
sourcetype = tsys_kafka
topic_name = splunk_auth_stream
zookeeper_connect_host = 10.xxx
zookeeper_connect_port = 2181

[kafka://tsys_kafka_10.xxxxx]
group_id = splunk
index = tsys
sourcetype = tsys_kafka
topic_name = splunk_auth_stream
zookeeper_connect_host = 10.xxxx
zookeeper_connect_port = 2181

0 Karma

pcressy
Engager

Thanks for the reply I'll try 8.1.
Here is the inputs.conf I'm currently using:

[kafka://tsys_kafka_10.xxxx]
group_id = splunk
index = tsys
sourcetype = tsys_kafka
topic_name = splunk_auth_stream
zookeeper_connect_host = 10.xxxx
zookeeper_connect_port = 2181

[kafka://tsys_kafka_10.xxxx]
group_id = splunk
index = tsys
sourcetype = tsys_kafka
topic_name = splunk_auth_stream
zookeeper_connect_host = 10.xxx
zookeeper_connect_port = 2181

[kafka://tsys_kafka_10.xxxxx]
group_id = splunk
index = tsys
sourcetype = tsys_kafka
topic_name = splunk_auth_stream
zookeeper_connect_host = 10.xxxx
zookeeper_connect_port = 2181
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!

Event Series May & June: From Network Visibility to Service Intelligence

Unifying the Network: Moving from Alert Noise to Service Intelligence with Splunk ITSI In today’s hybrid ...

Global Splunk User Group Events: May + June 2026

Your Splunk Community Awaits: Discover Upcoming User Group Events Worldwide    Staying ahead in the fast-paced ...

Why Splunk Customers Should Attend Cisco Live 2026 Las Vegas

Why Splunk Customers Should Attend Cisco Live 2026 Las Vegas     Cisco Live 2026 is almost here, and this ...