Knowledge Management

parallel reduce search processing - How do i know it is working? Do i have to use "Redistribute"?

robertlynch2020
Motivator

Hi

I have configured the below
http://docs.splunk.com/Documentation/Splunk/7.2.1/DistSearch/Parallelreduceoverview

Am i right to say i have to use the command Redistribute in my search to use this or is this something extra for high-cardinality searches?

But i am not seeing an performance decrease, so how can i check it is working?
I have one search head and 2 indexers (non-Clustered)

I have set the following on the indexers

server.conf
[parallelreduce]
pass4SymmKey = $7$qkfkqE35XUbVp9oAqD2M+bBQVTufnczdRnyIcnuQrbXhAV/u+7QyBaXR

 limits.conf
    [parallelreduce]
    reducers=10.25.5.169:5089, 10.25.53.57:5089

I have added in both indexers here, i am assuming i need to add in it self?

My user can run the command
run_multi_phased_searches
http://docs.splunk.com/Documentation/Splunk/7.2.1/DistSearch/Setupparallelreduce

Then i run the command and add redistribute to the command (If i understand correctly this is what we are to do!!) - But below does not work.

    | tstats summariesonly=true      chunk_size=1000000000 max(MXTIMING.Elapsed) AS Elapsed  FROM datamodel=MXTIMING_V9 WHERE 
    host=Luas_TestCampaign_PI9_2 
GROUPBY _time MXTIMING.Machine_Name MXTIMING.Context+Command MXTIMING.NPID MXTIMING.Date MXTIMING.Time MXTIMING.MXTIMING_TYPE_DM source MXTIMING.UserName2 MXTIMING.source_path MXTIMING.Command3 MXTIMING.Context3 span=1s | redistribute by _time

So the errors i am getting is below - But i don't understand i have tried to put redistribute in multiple parts of the search

Redistribute Processor: Cannot redistribute events that have been aggregated at the search head. Place the redistribute command before transforming commands that do not have a 'by' clause.

http://docs.splunk.com/Documentation/Splunk/7.2.1/SearchReference/Redistribute

Any help would be great - or how can i check what log

0 Karma
Get Updates on the Splunk Community!

Testing out the OpenTelemetry Collector With raw Data

This blog post is part of an ongoing series on OpenTelemetry. The OpenTelemetry project is the second largest ...

New Cloud Intrusion Detection System Add-on for Splunk

In July 2022 Splunk released the Cloud IDS add-on which expanded Splunk capabilities in security and data ...

Happy CX Day to our Community Superheroes!

Happy 10th Birthday CX Day!What is CX Day? It’s a global celebration recognizing innovation and success in the ...