Hi there, I just successfully upgraded our Flink cluster to 1.15.0 rc0 - also the corresponding job is running on this version. Looks great so far!
In the Web UI I noticed some metrics are missing, especially "Records Received", "Bytes Sent" and "Records Sent". Those were shown in v 1.14.4. See attached screenshot. Other than that I noticed, when using org.apache.flink.metrics.prometheus.PrometheusReporter , the taskmanager on which the job is running does not report the metrics on the configured port. Rather it returns: ➜ ~ curl http://flink-taskmanager-xxxxxx:xxxx/ curl: (52) Empty reply from server The other taskmanager reports metrics. The exporter is configured as followed: # Prometheus metrics metrics.reporters: prom metrics.reporter.prom.class: org.apache.flink.metrics.prometheus.PrometheusReporter metrics.reporter.prom.port: xxxxxx Is this a known issue with flink 1.15 rc0? Best, Peter [image: missingmetricsinui.png]
