[
https://issues.apache.org/jira/browse/KAFKA-17161?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Doug Hoard updated KAFKA-17161:
-------------------------------
Description:
*Summary*
When exporting JMX metrics from a server, REST Jersey metric names are
inconsistent, resulting in two metrics different metrics with the same value.
{code:java}
v3.topics-partitions-reassignment.list.request-total
v3.topics.partitions-reassignment.list.request-total{code}
Dash (-) versus period ({{{}.{}}}) between {{topics}} and {{partitions}}
This most likely affects older versions.
*Test scenario*
Install Kafka 3.6.2 with the Prometheus JMX Exporter v1.0.1 and collect
metrics. The exporter adds an "_objectname" for metrics that map to the same
Prometheus name.
*Example exporter output*
{noformat}
# HELP kafka_rest_jersey_metrics_v3_topics_partitions_reassignment_list_request
The request count using a cumulative counter
kafka.rest:name=null,type=jersey-metrics,attribute=v3.topics.partitions-reassignment.list.request-total
# TYPE kafka_rest_jersey_metrics_v3_topics_partitions_reassignment_list_request
untyped
kafka_rest_jersey_metrics_v3_topics_partitions_reassignment_list_request{_objectname="kafka.rest<type=jersey-metrics><>v3.topics-partitions-reassignment.list.request-total"}
0.0
kafka_rest_jersey_metrics_v3_topics_partitions_reassignment_list_request{_objectname="kafka.rest<type=jersey-metrics><>v3.topics.partitions-reassignment.list.request-total"}
0.0
{noformat}
was:
*Summary*
When exporting JMX metrics from a server, REST Jersey metric names are
inconsistent, resulting in two metrics different metrics with the same value.
{code:java}
v3.topics-partitions-reassignment.list.request-total
v3.topics.partitions-reassignment.list.request-total{code}
Dash (-) versus period ({{{}.{}}}) between {{topics}} and {{partitions}}
This most likely affects older versions.
*Test scenario*
Install Kafka 3.6.2 with the Prometheus JMX Exporter v1.0.1 and collect
metrics. The exporter adds an "_objectname" for metrics that map to the same
Prometheus name.
Example exporter output
{code:java}
# HELP kafka_rest_jersey_metrics_v3_topics_partitions_reassignment_list_request
The request count using a cumulative counter
kafka.rest:name=null,type=jersey-metrics,attribute=v3.topics.partitions-reassignment.list.request-total
# TYPE kafka_rest_jersey_metrics_v3_topics_partitions_reassignment_list_request
untyped
kafka_rest_jersey_metrics_v3_topics_partitions_reassignment_list_request{_objectname="kafka.rest<type=jersey-metrics><>v3.topics-partitions-reassignment.list.request-total"}
0.0
kafka_rest_jersey_metrics_v3_topics_partitions_reassignment_list_request{_objectname="kafka.rest<type=jersey-metrics><>v3.topics.partitions-reassignment.list.request-total"}
0.0 {code}
> REST Jersey metric names are inconsistent
> -----------------------------------------
>
> Key: KAFKA-17161
> URL: https://issues.apache.org/jira/browse/KAFKA-17161
> Project: Kafka
> Issue Type: Bug
> Components: core
> Affects Versions: 3.6.2
> Reporter: Doug Hoard
> Priority: Minor
>
> *Summary*
> When exporting JMX metrics from a server, REST Jersey metric names are
> inconsistent, resulting in two metrics different metrics with the same value.
> {code:java}
> v3.topics-partitions-reassignment.list.request-total
> v3.topics.partitions-reassignment.list.request-total{code}
> Dash (-) versus period ({{{}.{}}}) between {{topics}} and {{partitions}}
> This most likely affects older versions.
> *Test scenario*
> Install Kafka 3.6.2 with the Prometheus JMX Exporter v1.0.1 and collect
> metrics. The exporter adds an "_objectname" for metrics that map to the same
> Prometheus name.
> *Example exporter output*
> {noformat}
> # HELP
> kafka_rest_jersey_metrics_v3_topics_partitions_reassignment_list_request The
> request count using a cumulative counter
> kafka.rest:name=null,type=jersey-metrics,attribute=v3.topics.partitions-reassignment.list.request-total
> # TYPE
> kafka_rest_jersey_metrics_v3_topics_partitions_reassignment_list_request
> untyped
> kafka_rest_jersey_metrics_v3_topics_partitions_reassignment_list_request{_objectname="kafka.rest<type=jersey-metrics><>v3.topics-partitions-reassignment.list.request-total"}
> 0.0
> kafka_rest_jersey_metrics_v3_topics_partitions_reassignment_list_request{_objectname="kafka.rest<type=jersey-metrics><>v3.topics.partitions-reassignment.list.request-total"}
> 0.0
> {noformat}
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