Splunk Dev

REST API Modular Input: After creating a custom search command as a Python script, why am I getting the following "parse transport header" error message?

kiril123
Path Finder

Hello,

I have created a custom search command in Splunk as a Python script. When I run the command in Splunk SPL, I get the following error message:

ERROR ChunkedExternProcessor - Failed attempting to parse transport header

Does anyone has any suggestions?

This is the output of commands.conf:

[sankey]
chunked = true
enableheader = false
filename = system_python.path
command.arg.1 = sankey.py

jpass
Contributor

Did you ever figure this out? I'm having the same problem.

Career Survey
First 500 qualified respondents will receive a $20 gift card! Tell us about your professional Splunk journey.
Get Updates on the Splunk Community!

.conf25 Global Broadcast: Don’t Miss a Moment

Hello Splunkers, .conf25 is only a click away.  Not able to make it to .conf25 in person? No worries, you can ...

Observe and Secure All Apps with Splunk

 Join Us for Our Next Tech Talk: Observe and Secure All Apps with SplunkAs organizations continue to innovate ...

What's New in Splunk Observability - August 2025

What's New We are excited to announce the latest enhancements to Splunk Observability Cloud as well as what is ...