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https://issues.apache.org/jira/browse/KAFKA-14672?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kirk True updated KAFKA-14672:
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Component/s: clients
metrics
producer
> Producer queue time does not reflect batches expired in the accumulator
> -----------------------------------------------------------------------
>
> Key: KAFKA-14672
> URL: https://issues.apache.org/jira/browse/KAFKA-14672
> Project: Kafka
> Issue Type: Bug
> Components: clients, metrics, producer
> Reporter: Jason Gustafson
> Assignee: Kirk True
> Priority: Major
>
> The producer exposes two metrics for the time a record has spent in the
> accumulator waiting to be drained:
> * {{record-queue-time-avg}}
> * {{record-queue-time-max}}
> The metric is only updated when a batch is ready to send to a broker. It is
> also possible for a batch to be expired before it can be sent, but in this
> case, the metric is not updated. This seems surprising and makes the queue
> time misleading. The only metric I could find that does reflect batch
> expirations in the accumulator is the generic {{{}record-error-rate{}}}. It
> would make sense to let the queue-time metrics record the time spent in the
> queue regardless of the outcome of the record send attempt.
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