Splunk Search

How come this doesn't work given indexers.csv is a list of Splunk servers with role indexer?

albledsoe
Engager

How come this doesn't work given indexers.csv is a list of Splunk servers with role Indexer?

| inputlookup indexers.csv| rename splunk_server as Indxr| foreach Indxr [search index=_introspection sourcetype=splunk_resource_usage component=IOStats host=Indxr | eval reads_ps = 'data.reads_ps'| eval writes_ps = 'data.writes_ps' | eval writes_ps=avg(write_ps) | eval reads_ps=avg(reads_ps)]

Labels (1)
0 Karma
1 Solution

bowesmana
SplunkTrust
SplunkTrust

That is not what foreach is designed for. It looks like you want to run a search using the value of each splunk_server in your lookup, so use a subsearch like this

index=_introspection sourcetype=splunk_resource_usage component=IOStats [
  | inputlookup indexers.csv 
  | rename splunk_server as host 
]
| eval reads_ps = 'data.reads_ps' 
| eval writes_ps = 'data.writes_ps' 

I have left out the last two avg() statements as that is not how eval works - eval is to perform an action on a single event. If you want to create averages, use some form of stats command, e.g.

| stats avg(write_ps) as writes_ps avg(reads_ps) as reads_ps by host

View solution in original post

0 Karma

bowesmana
SplunkTrust
SplunkTrust

That is not what foreach is designed for. It looks like you want to run a search using the value of each splunk_server in your lookup, so use a subsearch like this

index=_introspection sourcetype=splunk_resource_usage component=IOStats [
  | inputlookup indexers.csv 
  | rename splunk_server as host 
]
| eval reads_ps = 'data.reads_ps' 
| eval writes_ps = 'data.writes_ps' 

I have left out the last two avg() statements as that is not how eval works - eval is to perform an action on a single event. If you want to create averages, use some form of stats command, e.g.

| stats avg(write_ps) as writes_ps avg(reads_ps) as reads_ps by host
0 Karma

albledsoe
Engager

Yep, that's it. It's been sometime since I wrote SPL.  I had been using the REST API in Bash and Javascript. But many don't want to run my scripts. So I am trying to convert to copy/paste SPL. Thanks for the quick tutorial.

0 Karma
Career Survey
First 500 qualified respondents will receive a $20 gift card! Tell us about your professional Splunk journey.

Can’t make it to .conf25? Join us online!

Get Updates on the Splunk Community!

Take Action Automatically on Splunk Alerts with Red Hat Ansible Automation Platform

 Are you ready to revolutionize your IT operations? As digital transformation accelerates, the demand for ...

Calling All Security Pros: Ready to Race Through Boston?

Hey Splunkers, .conf25 is heading to Boston and we’re kicking things off with something bold, competitive, and ...

Beyond Detection: How Splunk and Cisco Integrated Security Platforms Transform ...

Financial services organizations face an impossible equation: maintain 99.9% uptime for mission-critical ...