David Koster created NIFI-5448:
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Summary: Failed EL date parsing live-locks processors without a
failure relationship
Key: NIFI-5448
URL: https://issues.apache.org/jira/browse/NIFI-5448
Project: Apache NiFi
Issue Type: Bug
Components: Core Framework
Reporter: David Koster
Processors that utilize the Expression Language need to always present a
failure relationship.
If a processor with only a success relationship, for example UpdateAttribute,
utilizes the expression language to perform type coercion to a date and fails,
the processor will be unable to dispose of the FlowFile and remain blocked
indefinitely.
Recreation flow:
GenerateFlowFile -> Update Attribute #1 -> Update Attribute #2 -> Anything
Update Attribute #1 - test = "Hello World"
Update Attribute #2 - test = ${test:toDate('yyyy-MM-dd')}
Generates an IllegalAttributeException on UpdateAttribute.
The behavior should match numerical type coercion and silently skip the
processing or offer failure relationships on processors supporting EL
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