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https://issues.apache.org/jira/browse/NIFI-15644?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Handermann updated NIFI-15644:
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Affects Version/s: (was: 2.8.0)
> Record Kafka consumer lag as gauge metric in ConsumeKafka processor
> -------------------------------------------------------------------
>
> Key: NIFI-15644
> URL: https://issues.apache.org/jira/browse/NIFI-15644
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Extensions
> Reporter: Dariusz Seweryn
> Assignee: Dariusz Seweryn
> Priority: Major
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> As of [NIFI-15545|https://issues.apache.org/jira/browse/NIFI-15545], the
> KafkaConsumerService exposes a currentLag(TopicPartitionSummary) method that
> returns the current consumer lag (in records) for a given topic-partition.
> However, this information is not currently utilized by the ConsumeKafka
> processor.
> This ticket adds gauge metric recording to ConsumeKafka so that per-partition
> consumer lag is reported through the NiFi metrics framework via
> ProcessSession.recordGauge(). This enables operators to monitor consumer lag
> through any configured ComponentMetricReporter (e.g., OpenTelemetry).
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