Hi! I have unstructured log in the following format, and I can't seem to figure out how I can count the number of occurrences for each key in "keys"
log: I, [2022-03-25T18:29:43.325002 #55] INFO -- : {:entry=>[{:op=>"operation1", :keys=>["key:my_key5, size:6309"]}]}
log: I, [2022-03-25T18:29:43.324043 #56] INFO -- : {:entry=>[{:op=>"operation2", :keys=>["key:my_key6, size:159", "key:my_key5, size:6309", "key:my_key7, size:151", "key:my_key8, size:132"]}]}
log: I, [2022-03-25T18:29:43.322759 #57] INFO -- : {:entry=>[{:op=>"operation3", :keys=>["key:smy_key9, size:4"]}]}
log: I, [2022-03-25T18:29:43.317421 #58] INFO -- : {:entry=>[{:op=>"operation3", :keys=>["key:my_key6, size:159"]}]}
log: I, [2022-03-25T18:29:43.311789 #55] INFO -- : {:entry=>[{:op=>"operation1", :keys=>["key:7, size:151"]}]}
What I'm trying to get is the count of each key in "keys[]". For example, the above would yield the following result:
my_key5 2
my_key6 2
my_key7 1
my_key8 1
my_key9 1
Ideally I can display the "size" of each key as well, like a table or something. But that might be too complicated.
What I have so far is only a query that can count the number of occurrences for each operation:
| rex field=log "op=>\"(?<operation>\w*)\"" | stats count by operation
but not sure how I can count the unique keys inside the array.
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