Splunk Search

How to correlate two JSON objects via a key-value pair?

Leustad
Engager

Imagine there are thousands of JSON entries and I want to correlate object pairs via a key/value pair.

Entry #44

{
    speed: 55,
    distance: 18,
    time: 1481216486,
    color: red,
}

Entry #323

{
    speed: 75,
    distance: 38,
    time: 1481216486,
    color: blue,
}

Search:

sourcetype=test_drive (DO THE MAGIC) | eval first_distance=distance(#44) | eval second_distance=distance(#323) | table time first_distance(#323) second_distance(#44)

So basically I'm trying to find an entry pair via a key/value pair and use another key/value pair from the entry pair and create a table.

Sorry for the horrible formatting. Thank you

0 Karma
1 Solution

Leustad
Engager

I found the answer below at Stack Overflow: http://stackoverflow.com/a/41109872/5415084

You want to use the transaction filter here, http://docs.splunk.com/Documentation/Splunk/6.5.1/SearchReference/Transaction
This won't gracefully merge your json in _raw, but it will make the properties available to query/chart upon.

In this example, I assume you want to merge events by the time property, since that is the only matching field.

sourcetype=test_drive (DO THE MAGIC) | eval first_distance=distance(#44) | eval second_distance=distance(#323) | transaction time | table time first_distance(#323) second_distance(#44)

View solution in original post

0 Karma

Leustad
Engager

I found the answer below at Stack Overflow: http://stackoverflow.com/a/41109872/5415084

You want to use the transaction filter here, http://docs.splunk.com/Documentation/Splunk/6.5.1/SearchReference/Transaction
This won't gracefully merge your json in _raw, but it will make the properties available to query/chart upon.

In this example, I assume you want to merge events by the time property, since that is the only matching field.

sourcetype=test_drive (DO THE MAGIC) | eval first_distance=distance(#44) | eval second_distance=distance(#323) | transaction time | table time first_distance(#323) second_distance(#44)
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!

Deep Dive: Accelerate threat investigation with Splunk’s AI Assistant in Security

AI is one of the biggest topics in the market today, and for security teams, its value goes far beyond the ...

Announcing Modern Navigation: A New Era of Splunk User Experience

We are excited to introduce the Modern Navigation feature in the Splunk Platform, available to both cloud and ...

Detection Engineering Office Hours: Real-World Troubleshooting & Q&A

[REGISTER HERE] This thread is for the Community Office Hours session on Detection Engineering Office Hours: ...