Splunk Search

easier/better way to get a general field summary table

sideview
SplunkTrust
SplunkTrust

I have an interesting situation where I want to be able to display a little summary table, showing a few statistics about a small number of fields, as calculated from a restricted set of events.

Basically I want it to look like the below:

field avg min max
avg_age 0.000000 0.000000 0.000000
eps 0.935385 0.064514 2.836625
ev 34.869565 2 86
kb 6.600976 0.244141 16.830078



The closest I've gotten is this search:

foo | fields avg_age eps ev kb | fields - _* | stats values(*) as * | transpose | rename column as field "row 1" as value | eval value=split(value, " ") | stats avg(value) as avg min(value) as min max(value) as max by field

which looks like it works. However I think the use of multivalue fields here is going to lead to truncation and thus the statistics aren't going to be trustworthy.

Can anyone help? I have this feeling that there's something simple I'm missing? Like if there was a 'summary' command:

summary stats="min,max,avg" fields="avg_age eps ev kb"

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1 Solution

ziegfried
Influencer

Not that much easier, but here you go:

... | fields field1 field1 | stats min max avg | transpose | rex field=column "(?<stat>[^\(]+)\((?<field>[^\)]+)" | rename "row 1" as value | xyseries field stat value

Also, it's fairly easy to create a macro:

[summary_stats(2)]
args = fields,stats
definition = fields $fields$ | stats $stats$ | transpose | rex field=column "(?<stat>[^\(]+)\((?<field>[^\)]+)" | rename "row 1" as value | xyseries field stat value
iseval = 0

which makes the search easier to read:

 ... | `summary_stats(field1 field2 field3, min max avg)`

View solution in original post

ziegfried
Influencer

Not that much easier, but here you go:

... | fields field1 field1 | stats min max avg | transpose | rex field=column "(?<stat>[^\(]+)\((?<field>[^\)]+)" | rename "row 1" as value | xyseries field stat value

Also, it's fairly easy to create a macro:

[summary_stats(2)]
args = fields,stats
definition = fields $fields$ | stats $stats$ | transpose | rex field=column "(?<stat>[^\(]+)\((?<field>[^\)]+)" | rename "row 1" as value | xyseries field stat value
iseval = 0

which makes the search easier to read:

 ... | `summary_stats(field1 field2 field3, min max avg)`

sideview
SplunkTrust
SplunkTrust

Awesome answer. Since it doesn't use values() it wont get truncated. Thanks!

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