Enable light forwarding stopping forwarding

[LCM]

Following situation (Version 4.2.3) :
- Universal Forwarder (no GUI) sends data to Heavy Forwarder
- Heavy Forwarder (GUI) sends data to Indexer (GUI)

This all works just perfect (here status Universal Forwarder & Heavy Forwarder)

Universal Forwarder connected to Heavy Forwarder

09-22-2011 17:03:44.293 +0200 INFO  TcpOutputProc - Connected to idx=xxx.xxx.xxx.xxx:25000

Commands Heavy Forwarder

$ splunk display app SplunkLightForwarder
SplunkLightForwarder          UNCONFIGURED        DISABLED            INVISIBLE           
$ splunk display app SplunkForwarder
SplunkForwarder               UNCONFIGURED        ENABLED             INVISIBLE 

Now the problem: If I enable light forwarding via GUI on the Heavy Forwarder, somehow my Universal Forwarder cannot connect to the ex-Heavy Forwarder anymore!

Commands again on Heavy Forwarder (now Light Forwarder -> no GUI)

$ splunk display app SplunkLightForwarder
SplunkLightForwarder          UNCONFIGURED        ENABLED             INVISIBLE           
$ splunk display app SplunkForwarder
SplunkForwarder               UNCONFIGURED        ENABLED             INVISIBLE

Universal Forwarder not connected anymore

09-22-2011 17:18:44.330 +0200 ERROR TcpOutputFd - Connection to host=xxx.xxx.xxx.xxx:25000 failed

Is this a bug/feature not using the GUI to make a light forwarder out of a heavy forwarder?

[LCM · Accepted solution]

I basically disabled all apps: splunk disable app <appname> (even SplunkForwarder & SplunkLightForwarder) Note: Somehow, I couldn't disable eg. the search app!

With command splunk btool [inputs|outputs] list --debug, I could see paramaters Splunk's using while running. I noticed the search app's beeing used with a no-good inputs.conf file for me - so I removed that inputs.conf, since I couldn't disable the app itself.

Furher, in $SPLUNK_HOME/etc/system/local, I edited inputs.conf & outputs.confas followed:

inputs.conf

[splunktcp://:25000]

outputs.conf

[tcpout]
defaultGroup = indexserver.com_25000
disabled = false
indexAndForward = 0

[tcpout:indexserver.com_25000]
autoLB = true
server = indexserver.com:25000

[vlapeintuit]

You should be able to convert a heavy forwarder to a light forwarder. I personally have several light forwarders forwarding to forwarders who then send to indexers. In a couple instances i have light forwarders sending to universal forwarders who then send to indexers.

On the light forwarder, are you listening splunktcp on the port configured for forwarding?