Splunk Search

Include literal dataset in search query / Ensure fixed number of rows in result set

trevorreed
Explorer

Anyone know how to accomplish the Splunk equivalent of the following SQL?

 

SELECT * FROM (SELECT 'dev' AS env, 0 as value UNION SELECT 'beta' as env, 0 as value UNION SELECT 'prod' as env, 0 as value)

 

I intend to combine this arbitrary, literal dataset with another query, but I want to ensure that there are rows for 'dev', 'beta', and 'prod' whether or not Splunk is able to find any records for these environments. The reason for this is, I'm trying to create an alert that will trigger if a particular metric is NOT published often enough in Splunk for each of these environments.

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1 Solution

richgalloway
SplunkTrust
SplunkTrust

Finding something that is not there is not Splunk's strong suit.  See this blog entry for a good write-up on it.

https://www.duanewaddle.com/proving-a-negative/

One way to produce the equivalent to that SQL is with makeresults.

<<your search for env (dev,beta, or prod) and count>>
| append [| makeresults format=csv data="env,count
dev,0
beta,0
prod,0"]
| stats sum(count) as count by env
---
If this reply helps you, Karma would be appreciated.

View solution in original post

trevorreed
Explorer

The makeresults command is exactly what I needed. Thank you!

richgalloway
SplunkTrust
SplunkTrust

Finding something that is not there is not Splunk's strong suit.  See this blog entry for a good write-up on it.

https://www.duanewaddle.com/proving-a-negative/

One way to produce the equivalent to that SQL is with makeresults.

<<your search for env (dev,beta, or prod) and count>>
| append [| makeresults format=csv data="env,count
dev,0
beta,0
prod,0"]
| stats sum(count) as count by env
---
If this reply helps you, Karma would be appreciated.
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