Edoardo Comar created KAFKA-15133:
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Summary: RequestMetrics MessageConversionsTimeMs count is ticked
even when no conversion occurs
Key: KAFKA-15133
URL: https://issues.apache.org/jira/browse/KAFKA-15133
Project: Kafka
Issue Type: Bug
Components: core
Affects Versions: 3.4.1, 3.5.0
Reporter: Edoardo Comar
Assignee: Edoardo Comar
The Histogram
{{{{{}{color:#000000}RequestChannel{color}.{}}}messageConversionsTimeHist}}
is ticked even when a Produce/Fetch request incurred no conversion,
because a new entry is added to the historgram distribution, with a 0ms value.
It's confusing comparing the Histogram
kafka.network RequestMetrics MessageConversionsTimeMs
with the Meter
kafka.server BrokerTopicMetrics ProduceMessageConversionsPerSec
because for the latter, the metric is ticked only if a conversion actually
occurred
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