Hello,
Newbie here. I'm trying to add a field to hold the string length of another field in my input. I want to visualize the string lengths (to show average email message sizes by user for example).
I have tried the following but it puts "%{contents.length}" into the contentLength field.
mutate {
add_field => {"contentLength" => "%{contents.length}"}
}
Is there a way to do this? I could not find a way to do it in Kibana, so I figured I'd move down the stack. Any help would be greatly appreciated.
Thanks
Mark