Mark Payne created NIFI-8300:
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Summary: Make non-source processors invalid if scheduled for
Primary Node only
Key: NIFI-8300
URL: https://issues.apache.org/jira/browse/NIFI-8300
Project: Apache NiFi
Issue Type: Improvement
Components: Core Framework
Reporter: Mark Payne
There is never a reason a to schedule a processor to run on Primary Node Only
unless the processor is a source processor. However, we see this misused fairly
frequently, and it can result in data not moving through the system. We should
update the processor validation logic so that a processor is made invalid if
has an Execution Node of Primary Node Only and has any incoming connections.
This includes self-looping connections. Otherwise, Node A can be primary node,
and then queue up data. Node B then becomes Primary Node, leaving data sitting
on Node A indefinitely.
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