topic Re: How to use join command to keep events from subsearch that do not match with parent search? in Splunk Search

How to use join command to keep events from subsearch that do not match with parent search?

sloshburch — Wed, 23 Jul 2014 17:47:06 GMT

My understanding of the documentation (and my experiments) is that the inner keeps only events that match both searches, left keeps matches as well as items that were in the parent search but not in the child search, and outer keeps ONLY events that did not match from both searches. Unfortunately, I can't figure out how to keep items from the subsearch.

The search that I have set as the parent search returns more than 50k events and therefore can't be the subsearch.

Any ideas how to use the join command where the search keeps any events from the subsearch that do not have matches with the parent?

Re: How to use join command to keep events from subsearch that do not match with parent search?

somesoni2 — Wed, 23 Jul 2014 18:14:03 GMT

You might be able to do it without join (using stats). Could you provide your two searches?

Re: How to use join command to keep events from subsearch that do not match with parent search?

strive — Wed, 23 Jul 2014 18:16:30 GMT

Check this link.. how to join with out common fields

http://answers.splunk.com/answers/109964/join-a-subsearch-with-the-outer-search-without-a-common-field

Re: How to use join command to keep events from subsearch that do not match with parent search?

sloshburch — Thu, 24 Jul 2014 18:42:56 GMT

Yes! Stats! I think that's the way to go. Then I can use something simple like a | fields just the stuff to keep | stats latest(*) as * by unique1 unique2

Good idea!

I can't really share the actual search - they are derived from a massive amount of macros and I'm concerned they exposes a little more about the business than I'm comfortable with.

The stats is a great idea - exactly what I was looking for - a way to approach this from another direction. Thanks again.

Re: How to use join command to keep events from subsearch that do not match with parent search?

somesoni2 — Thu, 24 Jul 2014 18:49:08 GMT

Just for reference (see 2nd answer) http://answers.splunk.com/answers/81741/full-outer-join

Re: How to use join command to keep events from subsearch that do not match with parent search?

sloshburch — Thu, 24 Jul 2014 19:57:08 GMT

Thanks. That is exactly how I interpreted your tip. Ideally I get them on the same initial search but at the least I think I'll be all set using stats. Thanks again!