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From James McMahon <>
Subject Process Groups and StandardClassificationService
Date Mon, 13 Mar 2017 11:00:52 GMT
Good morning. My co-worker and I have independent Process Groups, PGA and
PGB. Both exist at the workflow level immediately under NiFi Flow. Each
process group does indeed appear to have its own unique identifier. However
as we each run our workflows we find that we are periodically being told by
NiFi to refresh because the other has made updates. I noticed that we have
each defined instances of StandardClassificationService. Could that be the
reason we were getting these refresh messages?

In general how should StandardClassificationService,
StandardHttpContextMap, and StandardSSLContextService be instantiated for
process groups? Should there only be one of each service and mapfor NiFi
Flow, shared by all process groups and processors under NiFi flow? Or
should each process group have its own instance, and - if so - why are we
experiencing these refresh messages that appear to be driven by changes in
the other independent process group?

Thank you in advance for your help. -Jim

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