Gabriel Orstadius-Bui created NIFI-12992:
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Summary: Processor referencing controller service shown as invalid
after switching to stateless execution engine
Key: NIFI-12992
URL: https://issues.apache.org/jira/browse/NIFI-12992
Project: Apache NiFi
Issue Type: Bug
Components: NiFi Stateless
Affects Versions: 2.0.0-M2
Reporter: Gabriel Orstadius-Bui
How to reproduce:
# A processor and a controller service referenced by the processor are both
within a process group using the standard execution engine. The controller
service is disabled and the processor is therefore displayed as invalid in the
diagram.
# Switch the process group's execution engine to Stateless.
# The processor is incorrectly still displayed as invalid in the diagram.
# Quickly opening the processor's configurations will still display the
processor as invalid within the pop-up dialog.
# Waiting for a few seconds and then (re-)opening the processor's
configurations will then correctly show the processor as valid (just stopped).
Going back to the diagram will then also display the processor as valid.
# (Switching back to standard will conversely incorrectly display the
processor as valid until waiting for a few seconds and opening its
configurations)
In other words, it seems as if there is a long window of time after switching
execution engine in which NiFi does not take the new execution engine into
consideration when validating processors.
Ideally, the validation should correctly validate the processors right after
switching the execution engine and display them as valid/invalid accordingly in
the diagram.
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