[jira] [Assigned] (NIFI-8272) Deleted/renamed metrics are still being shown in the REST API Prometheus endpoint

["Noble Numbat (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/NIFI-8272?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Noble Numbat reassigned NIFI-8272:
----------------------------------

    Assignee: Noble Numbat

> 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
>
> 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.



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