topic Re: Subsearch doesn't return anything in Splunk Search

Subsearch doesn't return anything

MidnightRun — Sat, 04 Dec 2021 02:07:16 GMT

I'm trying to write a search that will return a table where all average values of the field price grouped by Ids are lower then 1 month ago. This is my attempt:

This, however, always returns 0 results even though there are events in these time periods. I even tried subtituting the subsearched with a fixed number and that produces a table. Does anyone now why this isn't working and maybe how to fix it?

Re: Subsearch doesn't return anything

PickleRick — Sat, 04 Dec 2021 06:45:35 GMT

Firstly, try rephrasing your search to not use subsearch at all. (Eventstats with eval, perhaps?) Subsearches are good sometimes (that's why they are there) but have limits and can be tricky.

But if you really want a subsearch, yours prepares an aggregate by ID but returns only the first value. Are you sure that's what you want?

Re: Subsearch doesn't return anything

MidnightRun — Sat, 04 Dec 2021 09:56:36 GMT

I would like to use a subsearch yes, and returning the first value isn't what I want, any Idea how to fix it?

Re: Subsearch doesn't return anything

PickleRick — Sat, 04 Dec 2021 12:51:12 GMT

Well, it ain't that easy. Subsearch returns either a "table" of results or values only but as a whole "result". You can't easily compare single field value to a set of values. (your "| where " condition). Why do you want to use the subsearch?

Re: Subsearch doesn't return anything

MidnightRun — Sat, 04 Dec 2021 12:59:13 GMT

I don't see any other way of doing it but with subsearch. I need to compare average values from one timerange to average values of another time frame.

Re: Subsearch doesn't return anything

richgalloway — Sat, 04 Dec 2021 13:18:34 GMT

There are a couple of ways (and perhaps more) to do that.

index="myindex" sourcetype="mysourcetype" earliest=-1mon@mon latest=@mon ```Get the old average price``` | stats avg(Price) as avg by ID ```Get the new average price ``` | append [ search index="myindex" sourcetype="mysourcetype" earliest=@d | stats avg(Price) as new_avg by ID ] ```Regroup the results``` | stats values(*) as * by ID | where avg > new_avg | table *

Or, if Price is an indexed field:

| tstats avg(Price) as avg where index="myindex" sourcetype="mysourcetype" earliest=-1mon@mon latest=@mon by ID | tstats append=t avg(Price) as new_avg where index="myindex" sourcetype="mysourcetype" earliest=@d by ID | where avg > new_avg | table *

Re: Subsearch doesn't return anything

MidnightRun — Sat, 04 Dec 2021 13:24:36 GMT

This works, thank you very much.

Re: Subsearch doesn't return anything

richgalloway — Sat, 04 Dec 2021 17:49:37 GMT

If your problem is resolved, then please click the "Accept as Solution" button to help future readers.