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Matt Burgess commented on NIFI-8272: ------------------------------------ Not sure this works on Summaries or Histograms, but we're not collecting those metrics at this point, just wanted to mention a possible limitation in the future > Deleted/renamed metrics are still being shown in the REST API Prometheus > endpoint > --------------------------------------------------------------------------------- > > Key: NIFI-8272 > URL: https://issues.apache.org/jira/browse/NIFI-8272 > Project: Apache NiFi > Issue Type: Bug > Affects Versions: 1.13.0, 1.12.1, 1.14.0 > Reporter: Noble Numbat > Assignee: Noble Numbat > Priority: Minor > Labels: REST_API, metrics, prometheus > Time Spent: 20m > Remaining Estimate: 0h > > Processors, connections, funnels, etc that have been deleted/renamed from a > flow are still being shown in the REST API Prometheus metrics endpoint at > their last reported value before they were deleted/renamed. > I checked the PrometheusReportingTask and deleted items are not displayed in > the metrics output as I would expect is the correct behaviour. > The bug can be replicated with a flow as simple as a single processor by > deleting the processor and observing the metrics still included on subsequent > calls to the endpoint. -- This message was sent by Atlassian Jira (v8.3.4#803005)