Getting Data In

Why only one indexer out of the 3 overall, is receiving reasonable amount of data and the others aren't?

Path Finder

Hi Splunkers,
I have a very mind-rattling situation here. I have a distributed environment (non-clustered) with 2 SHs and 3 indexers. My first SH act as the primary, while the second act as a slave. on a normal day I see all three of my indexers receiving equal amounts of data inputs. about three days ago I noticed that my third indexer has been carrying most of the load while the others were bare getting any data. It has since gotten worse. Today inder3 is showing 62%, indexer2-11% and indexer1-11%. I have also noticed the my /etc/system/local directory on the slave SH has not outputs.conf file while the master SH does have an outputs.conf in the same directory (is this normal?). I don't how to resolve this. Please help. Thanks

0 Karma


For your first question related to equal distribution,you will need to configure load balancer with autolbvolume to equally distribute data. Fortunately Splunk has its own loadbalancer.


It is best practice to send search head data to indexer (as it maintains all instance data in Indexer) It is upto you whether data needs to forward to Indexer or not from Search Head.Since one of your search head is sending data why cant you configure SH2 also to send data to Indexer.

NB:- You can use Splunk LB from SH to IDX also.

0 Karma

Ultra Champion

Your concern should be about the outputs.conf on the indexers, not the SHs.

0 Karma


outputs.conf on the indexer? where would the indexer send his data too?

1) outputs.conf difference on the SH's : could be normal, just depends in what way they are configured.
try splunk btool --debug outputs list Maybe te outputs.conf in a deffirent place

2) your Index load distribution.
If 1 index is getting more data it could be a couple of things

  • your outputs are not all the same in your enviroment. Are all your forwarders configured to send data too the 3 machines?
  • you are receiving a VERY big file from 1 machine. Your forwarder will only change too an other indexer if it hits EOF. When you reading a file of serval GB's it will all go to 1 indexer.
0 Karma
.conf21 CFS Extended through 5/20!

Don't miss your chance
to share your Splunk
wisdom in-person or
virtually at .conf21!

Call for Speakers has
been extended through
Thursday, 5/20!