Qichao Chu created KAFKA-16129:
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Summary: Add integration test for KIP-977
Key: KAFKA-16129
URL: https://issues.apache.org/jira/browse/KAFKA-16129
Project: Kafka
Issue Type: Task
Reporter: Qichao Chu
*{{metrics.verbosity}}* will be a new dynamic config introduced to control the
verbosity(fan-out rate) of the metrics. It's a config with JSON format
specifying the condition controlling fan-out of the metrics. If the value
*{{high}}* is set for the *{{level}}* key of the configured JSON(see below for
example values), high fan-out tags(e.g. {*}{{partition}}{*})will be added to
metrics specified by the {{*name*}} filter and will apply to all the topics
that meet the conditions in the {{*filters*}} section. In the *{{low}}*
settings, these tags will be assigned with an empty value. We elected to make
it central so that this implementation can be generalized in the future either
into a library, or allow other means for centralized control.
More details:
https://cwiki.apache.org/confluence/display/KAFKA/KIP-977%3A+Partition-Level+Throughput+Metrics
The following 3 tests will be done for common metrics collectors: JMX,
Prometheus, and OpenTelemetry.
# The partition tag can be observed from metrics if high verbosity is used
# The partition tag should result in an empty string or be filtered out by the
metrics collector if default verbosity is used
# Dynamically setting the verbosity can result in the behavior defined in the
above tests
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