Aldrin Piri created NIFI-2514:
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Summary: Update documentation on handling of Controller Services
Key: NIFI-2514
URL: https://issues.apache.org/jira/browse/NIFI-2514
Project: Apache NiFi
Issue Type: Improvement
Components: Documentation & Website
Affects Versions: 1.0.0-Beta
Reporter: Aldrin Piri
Controller services work as anticipated but the way they are structured is a
bit of a departure from how they used to work. Would be helpful to have docs
that inform users of how each is structured.
It seems that Flow Controller level controller services are only there for
other controller services and/or reporting tasks.
These are separate from controller services that are for an associated process
group (or parent) which are nested.
{quote}
The access/visibility of controller services seems a bit confusing to me and
don't see any docs that clarify. It seems that for nested process groups, I can
view all controller services in parent process groups. The configuration on
the "Operate" palette seems to control these which seems to be completely
disjoint from the flow level controller settings, which are not listed in any
of the nested process groups. I would imagine the flow level controller
settings would also be present in each of the child PGs regardless of nesting
level but these do not seem to be visible to any of my components. Are these
just to support reporting tasks? Would reporting tasks also have a similar
hierarchy where they could also be contained within a given PG chain?
{quote}
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