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https://issues.apache.org/jira/browse/KAFKA-3868?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Liquan Pei reassigned KAFKA-3868:
---------------------------------
Assignee: Liquan Pei
> New producer metric record-size-avg does not provide average record size as
> advertised
> --------------------------------------------------------------------------------------
>
> Key: KAFKA-3868
> URL: https://issues.apache.org/jira/browse/KAFKA-3868
> Project: Kafka
> Issue Type: Bug
> Components: producer
> Affects Versions: 0.10.0.0
> Reporter: Ewen Cheslack-Postava
> Assignee: Liquan Pei
>
> The metrics for record size are setup as such:
> {code}
> this.maxRecordSizeSensor = metrics.sensor("record-size-max");
> m = metrics.metricName("record-size-max", metricGrpName, "The
> maximum record size");
> this.maxRecordSizeSensor.add(m, new Max());
> m = metrics.metricName("record-size-avg", metricGrpName, "The
> average record size");
> this.maxRecordSizeSensor.add(m, new Avg());
> {code}
> and then the values are recorded:
> {code}
> this.maxRecordSizeSensor.record(batch.maxRecordSize, now);
> {code}
> So the value provided by record-size-avg is the average maximum record size
> with the average computed by batch, not the average size of the records being
> sent as is suggested by "The average record size". We have all the necessary
> info needed to compute the metric, but it needs to be done separately from
> recording the batch.maxRecordSize values.
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