Getting Data In

forwarder not compressing despite being told to do so

summitcove
New Member

Hi There. I have 2 matching forwarders pointed to an indexer. One compresses, one doesn't. Any ideas why?

Machine that works

cat /opt/splunk/etc/system/local/outputs.conf 
[tcpout]
defaultGroup = my_indexers
indexAndForward = true

[tcpout:my_indexers]
compressed = true
server = splunklog:29000

[tcpout-server://splunklog:29000]
compressed = true

Machine that doesn't work

cat /opt/splunk/etc/system/local/outputs.conf 
[tcpout]
defaultGroup = my_indexers
indexAndForward = true

[tcpout:my_indexers]
compressed = true
server = splunklog:29001

[tcpout-server://splunklog:29001]
compressed = true

Indexer (machine that receives)

cat /opt/splunk/etc/system/local/inputs.conf 
[default]
host = splunk.***********.com

[splunktcp://29000]
compressed = true
enableS2SHeartbeat = true

[splunktcp://29001]
compressed = true
enableS2SHeartbeat = true

Log that proves it (10...101 is the machine that doesn't send compressed)

tail /opt/splunk/var/logs/splunk/splunkd.log
10-04-2010 19:55:16.756 ERROR TcpInputProc - Received unrecognized signature --splunk-cooked-mode-v2--! from hostname=10.***.****.101, ip=10.***.****.101, port=41119
10-04-2010 19:55:16.756 INFO  TcpInputProc - Hostname=10.***.****.101 closed connection
10-04-2010 19:55:47.771 INFO  TcpInputProc - Connection in cooked mode from 10.***.****.101
10-04-2010 19:56:18.756 ERROR PipelineDataInput - Mismatch in configuration between forwarder and indexer. Expecting compressed data, but forwarder configured to send without compression
10-04-2010 19:56:18.756 ERROR TcpInputProc - Received unrecognized signature --splunk-cooked-mode-v2--! from hostname=10.***.****.101, ip=10.***.****.101, port=41120
10-04-2010 19:56:18.756 INFO  TcpInputProc - Hostname=10.***.****.101 closed connection
Tags (1)
0 Karma

rodman
New Member

I am also seeing the same behavior. My compression settings are also set the same as yours. Were you able to find an answer?

0 Karma

davidbrai
New Member

I'm having the same problem. Did you manage to fix it?

0 Karma
Get Updates on the Splunk Community!

Application management with Targeted Application Install for Victoria Experience

  Experience a new era of flexibility in managing your Splunk Cloud Platform apps! With Targeted Application ...

Index This | What goes up and never comes down?

January 2026 Edition  Hayyy Splunk Education Enthusiasts and the Eternally Curious!   We’re back with this ...

Splunkers, Pack Your Bags: Why Cisco Live EMEA is Your Next Big Destination

The Power of Two: Splunk + Cisco at "Ludicrous Scale"   You know Splunk. You know Cisco. But have you seen ...