Metrics not showing in broker's metrics tab #1716
Description
Issue submitter TODO list
- I've looked up my issue in FAQ
- I've searched for an already existing issues here
- I've tried running
main-labeled docker image and the issue still persists there - I'm running a supported version of the application which is listed here
Describe the bug (actual behavior)
I want to view the metrics under broker's metric tabs. the loader is stuck with white page. I used the dev tools to get the endpoint of the metrics URL and ran it manually I get the json response of the metric. Same for using curl.
I used jmx_prometheus_javaagent-1.0.1.jar for the metrics.
curl -s -H "Cookie: SESSION=XXX" \
http://localhost:8080/kafkaui/api/clusters/my_env/brokers/2/metrics | jq '.metrics | length'
6055
Expected behavior
Show all metrics in the UI
Your installation details
Version - v1.4.2
Kafka 4.0.0 (bitnami image)
Docker deployment with SSL and Auth login.
Client: Docker Engine - Community
Version: 29.2.1
API version: 1.53
Steps to reproduce
Deploy single broker as docker container with SSL in KRaft mode.
Deploy UI as docker container with SSL and connect broker to it.
All under the same network and using DNS.
Screenshots
No response
Logs
2026-03-09T17:57:17.372Z DEBUG 1 --- [ parallel-1] i.k.u.s.ClustersStatisticsScheduler : Start getting metrics for kafkaCluster: my_env
2026-03-09T17:57:17.525Z DEBUG 1 --- [ parallel-1] i.k.u.s.m.s.i.InferredMetricsScraper : 18 metric families inferred from cluster state
2026-03-09T17:57:17.528Z DEBUG 1 --- [ parallel-1] i.k.u.s.m.s.p.PrometheusMetricsRetriever : Retrieving metrics from prometheus endpoint: kfc-kafka:9991
2026-03-09T17:57:20.289Z DEBUG 1 --- [or-http-epoll-1] i.k.u.s.ClustersStatisticsScheduler : Metrics updated for cluster: my_env
Additional context
No response