Adam Debreceni created MINIFICPP-1270:
-----------------------------------------
Summary: Notify C2Agent of the cause of configuration update
failure
Key: MINIFICPP-1270
URL: https://issues.apache.org/jira/browse/MINIFICPP-1270
Project: Apache NiFi MiNiFi C++
Issue Type: Improvement
Reporter: Adam Debreceni
There is already a feedback on update failures in `C2Agent.cpp`
```
C2Payload response(Operation::ACKNOWLEDGE, state::UpdateState::SET_ERROR,
resp.ident, false, true);
response.setRawData("Error while applying flow. Likely missing processors");
```
but it is quite sparse, as `StateMonitor::applyUpdate` does not provide proper
feedback.
We should introduce a new `applyUpdateWithFeedback` (subject to change), which
also takes an `UpdateErrorReporter` and propagate this through so that the
eventual verification step can fill it properly.
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