topic Re: Unable to run python script in Splunk Dev

Unable to run python script

jayakumar19 — Tue, 29 Sep 2020 23:47:39 GMT

Unable to run python script with inputs.conf, getting below errors

03-21-2019 10:11:03.474 -0400 ERROR ExecProcessor - message from "python $Splunk_home/etc/apps/XX/bin/X.py" File "$Splunk_home/etc/apps/XX/bin/X.py", line 100, in
03-21-2019 10:11:03.474 -0400 ERROR ExecProcessor - message from "python $Splunk_home/etc/apps/XX/bin/X.py" fileIo = open(logFile,'w')
03-21-2019 10:11:03.474 -0400 ERROR ExecProcessor - message from "python $Splunk_home/etc/apps/XX/bin/X.py" IOError: [Errno 13] Permission denied: u'.//21_03_2019-10_11_02-datafeed.json'

But I can run script manually. $Splunk_home/bin/splunk cmd python $Splunk_home/etc/apps/XX/bin/X.py

Re: Unable to run python script

harsmarvania57 — Thu, 21 Mar 2019 15:33:41 GMT

Hi,

Are you running script manually with same user as splunk process is running ?

Re: Unable to run python script

jayakumar19 — Thu, 21 Mar 2019 16:15:34 GMT

Thanks Harsmarvania for looking into it. Yes I am running it as splunk user.

Re: Unable to run python script

harsmarvania57 — Thu, 21 Mar 2019 18:35:23 GMT

Based on logs which you have provided it is saying that splunk process which is running as splunk user doesn't have permission to read 21_03_2019-10_11_02-datafeed.json file.

Re: Unable to run python script

jayakumar19 — Thu, 21 Mar 2019 18:42:09 GMT

Actually script is trying to create that file. Manual run is able to create new file.

Re: Unable to run python script

harsmarvania57 — Thu, 21 Mar 2019 18:47:49 GMT

That's strange, in which directory splunk tries to create file using that script ?

Re: Unable to run python script

MuS — Thu, 21 Mar 2019 18:56:50 GMT

Hi jayakumar19,

Usually I do this to test/troubleshoot scripts in Splunk:

 $SPLUNK_HOME/bin/splunk cmd /bin/bash

This will start a shell session with all Splunk environment settings. Then I start the script like this:

$SPLUNK_HOME/bin/splunk cmd $SPLUNK_HOME/etc/apps/XX/bin/X.py

This helps a lot to understand where and/or why scripts fail to run.

In addition I add logging lines into the script that will tell me variables being used and which step is being processed. You can add them like this:

logging.debug('what ever you want to show in the logfile')

Hope that helps ...

cheers, MuS