Splunk Search

Correlating two indexes data

abhayneilam
Contributor

Hi,

I have a correlation ID in one index

( index="AAA" | rex "XXXXXX\]\[(?.*?)\]" )  

which I want to match with the correlation ID of other index ,

( index="BBB" | rex "CCCCCCC\]\[(?.*?)\]" )

Once matched I want to get the total count of how many correlation ID mathces between these two Indexes.

Please help me to get the results.

Tags (2)
0 Karma
1 Solution

MuS
SplunkTrust
SplunkTrust

Hi abhayneilam,

based on the provided information, which is by the way very little, try something like this:

index="AAA" OR index="BBB"  
| rex "XXXXXX\]\[(?<myID>.*?)\]" 
| rex "CCCCCCC\]\[(?<myID>.*?)\]" 
| streamstats window=2 last(myID) AS last_myID 
| where myID=last_myID 
| stats count by myID

This should give you an idea or take a closer look at this answer
http://answers.splunk.com/answers/129424/how-to-compare-fields-over-multiple-sourcetypes-without-joi...

hope this helps ...

cheers, MuS

View solution in original post

MuS
SplunkTrust
SplunkTrust

Hi abhayneilam,

based on the provided information, which is by the way very little, try something like this:

index="AAA" OR index="BBB"  
| rex "XXXXXX\]\[(?<myID>.*?)\]" 
| rex "CCCCCCC\]\[(?<myID>.*?)\]" 
| streamstats window=2 last(myID) AS last_myID 
| where myID=last_myID 
| stats count by myID

This should give you an idea or take a closer look at this answer
http://answers.splunk.com/answers/129424/how-to-compare-fields-over-multiple-sourcetypes-without-joi...

hope this helps ...

cheers, MuS

abhayneilam
Contributor

Thanks a lot !! 🙂

0 Karma

abhayneilam
Contributor

so for both the Indexes , do we need to keep the same filed name as "Correlation_ID"

0 Karma

splunker12er
Motivator

index="AAA" | rex "XXXXXX][(?.?)]" | append [search index="BBB" | "CCCCCCC][(?.?)]" ] | stats count by correlaion_ID

tried this ?

0 Karma
Got questions? Get answers!

Join the Splunk Community Slack to learn, troubleshoot, and make connections with fellow Splunk practitioners in real time!

Meet up IRL or virtually!

Join Splunk User Groups to connect and learn in-person by region or remotely by topic or industry.

Get Updates on the Splunk Community!

Why Splunk Customers Should Attend Cisco Live 2026 Las Vegas

Why Splunk Customers Should Attend Cisco Live 2026 Las Vegas     Cisco Live 2026 is almost here, and this ...

What Is the Name of the USB Key Inserted by Bob Smith? (BOTS Hint, Not the Answer)

Hello Splunkers,   So you searched, “what is the name of the usb key inserted by bob smith?”  Not gonna lie… ...

Automating Threat Operations and Threat Hunting with Recorded Future

    Automating Threat Operations and Threat Hunting with Recorded Future June 29, 2026 | Register   Is your ...