I have a custom processor, /SplitHl7v4Resources/, that splits out
individual FHIR resources (Patients, Observations, Encounters, etc.)
from great Bundle flowfiles. So, for a given flowfile, it's split into
hundreds of smaller ones.
When I do this, I leave the existing NiFi attributes as they were on the
original flowfile.
As I contemplate the uuid attribute, it occurs to me that I should find
out what its *significance is for provenance and other potential
debugging/tracing concerns*. I never really look at it, but, if there
were some kind of melt-down in a production environment, would I care
that it multiplied across hundreds of flowfiles besided the original one?
Also these two other NiFi attributes remain unchanged:
filename
path
I do garnish each flowfile with many pointed/significant new attributes
like resource.type that are my own. In my processing, I don't care about
NiFi's original attributes, but should I?
Thanks,
Russ
