Splunk Search

Visualize JSON array of array

faustf
Communicator

Hi guys,

I would like to convert the following event into a table:

{
   Id: 1505207351   
   Start: 1505207651    
   Resource: res    
   Nodes: [ 
            [ res1, 1 ] , [ res2, 3 ]   
       ]    
}

The output should be a table like this:

 Id        |    Start   | Nodes
1505207351 | 1505207651 | [res1,1] , [res2,3]

Or even better, display a subtable in the Nodes column:

 Id        |    Start   |    Nodes
           |            | Res | Rank
-------------------------------------
1505207351 | 1505207651 | res1 | 1 
                        | res2 | 3
------------------------------------
2305207351 | 2305207651 | res3 | 4 
                        | res4 | 3

The event sourcetype is _json
My actual query to search the events is this:

index="myindex" | spath | table Id, Start, Nodes

The result is a table but the Nodes column is empty

Thanks

0 Karma

somesoni2
Revered Legend

Give this a try

 index="myindex" | spath | table Id, Start, Nodes* | rename Nodes{}{} as Nodes | rex field=Nodes max_match=0 "(?<Nodes_Res>\S+)\s+(?<Nodes_Rank>\d+)" 
|  table Id, Start, Nodes_Res Nodes_Rank
0 Karma

somesoni2
Revered Legend

Try this

index="myindex" | spath | table Id, Start, Nodes* | rename Nodes{}{} as Nodes
0 Karma

faustf
Communicator

Great it worked.
Is it difficult (or is it possible) to implement the subtable?

0 Karma

somesoni2
Revered Legend

It will be difficult. Firstly, the dual level columns are not possible (SPlunk doesn't support merged columns like you see in excel), but you you would be able to do some workaround. How does the data looks in the columns Nodes after the queries? Can you post some actual sample values (mask anything that is sensitive)? Conversion of that to the subtable format (converting NOdes to multivalued field) will depend on it current format. May be run this and tell actual values on both Nodes and NodesCount column.

index="myindex" | spath | table Id, Start, Nodes* | rename Nodes{}{} as Nodes | eval NodesCount=mvcount(Nodes)
0 Karma

faustf
Communicator

This is my current result: link text

0 Karma
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