Hi Guys ,
I apologize in advance if my question seems trivial but I am new on Nifi.
I'm studying Nifi for an integration with Flink that I'm used to.
Since flink I send events using Site-to-Site to Nifi.
the Flowfile have attribute "eventUuid":"
97f82c90-0782-4aab-8850-56ee60b0b73d"
I would like to do an aggregation on events based on the value of this
attribute,
so I look at the documentation of AttributeRollingWindow.
I understood by looking at the errors that this operator does not accept
strings and therefore can not track a value on String
*Value to Track : ${eventUuid} will throw NumberFormatExceptions.*
*Value to Track : ${eventUuid:toNumber()} will not work because UUID 128
bit can't be convert to an 32 bytes number;*
Is this a limitation or a bad approach on my part? I can not use an event
on the timestamp here because this UUID is generated at the beginning of
the workflow
Thank a lot for your help
Steve
