Hi Dev Community, Can you please throw some light please? On Sun, May 4, 2025, 11:26 PM Subrahmanya Oruganti < chakravarthi.oruga...@gmail.com> wrote:
> Dear DEV Community, > > The nifi-api/flow/metrics/prometheus api endpoint is generating prometheus > metrics from componentEventRepository field of RingBufferEventRepository. > This componentEventRepository uses SecondPrecisionEventContainer internally > and the events will be purged after 5 minutes. As a result, the metrics > provided by the api endpoint nifi-api/flow/metrics/prometheus are incorrect. > > Example: I have a GenerateFlowFile processor which generates 1 flowfile > per minute. I connected UpdateCounter processor and incrementing > "generated_flowfiles" by 1. (delta). > > When I monitor this metric in grafana, it never shows a value more than 5. > > > Reading from aggregateValues field of RingBufferEventRepository may give > correct value. > > Can you please help me whether my analysis is right? or I need to do some > other configuration to get the metrics right in grafana. > > Thanks in advance. > Subrahmanya >
