Sumitk
Sumitk

Reputation: 1505

Splunk: Find events that don't have a certain attribute logged as different log lines

We have Splunk logs like:

ts=20:10:01 id=1 state=first foo=bar
ts=20:10:05 id=1 state=second foo=bar
ts=20:10:06 id=1 state=third foo=bar

ts=20:10:03 id=2 state=first foo=bar

ts=20:11:01 id=3 state=first foo=bar
ts=20:11:03 id=3 state=second foo=bar
ts=20:11:05 id=3 state=third foo=bar

I would like to find all id that does not have the other 2 states. In this example all id=2 that logged first state but not the other 2. I was reading on JOIN and found that it can only look at events that occur with both events but we can't exclude those events.

index=my-idx foo=bar 
| join id type=outer
  [search index=my-idx foo=bar NOT (state=second OR state=third) | table id]
| table id

The Query I am thinking of should return a list of ids that don't have the state=second or state=third which in the above example should return id=2

Upvotes: 1

Views: 1016

Answers (2)

Mads Hansen
Mads Hansen

Reputation: 66783

stats values(state) as all_states dc(state) as state_count by id
| search all_states="first" AND state_count=1
| table id

Upvotes: 1

RichG
RichG

Reputation: 9926

Here's a run-anywhere example query that should do it. Comments in the query explain what it does. It assumes the first state of any id is always "first".

| makeresults 
| eval data="ts=20:10:01 id=1 state=first foo=bar;
ts=20:10:05 id=1 state=second foo=bar;
ts=20:10:06 id=1 state=third foo=bar;
ts=20:10:03 id=2 state=first foo=bar;
ts=20:11:01 id=3 state=first foo=bar;
ts=20:11:03 id=3 state=second foo=bar;
ts=20:11:05 id=3 state=third foo=bar"
| eval data=split(data,";")
| mvexpand data
| eval _raw=data
| extract kvdelim=" ", pairdelim="="
| fields ts,id,state,foo
```Above just sets up test data```
```Count how many different states each id has```
| streamstats dc(state) as count by id
```Find the highest count for each id```
| eventstats max(count) as max by id
```Select only those with a single state```
| where max=1
| table ts id state foo

Upvotes: 1

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