Matt Burgess created NIFI-7378:
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Summary: Prometheus components give error when null labels are
provided
Key: NIFI-7378
URL: https://issues.apache.org/jira/browse/NIFI-7378
Project: Apache NiFi
Issue Type: Bug
Components: Extensions
Reporter: Matt Burgess
It is possible for some components that a field used as a label in the metrics
will have a null value. In that case the scraping fails and thus no metrics are
available.
The code should be defensive in the sense of setting a default value for all
null labels.
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