Rune Skou Larsen created FLINK-9703:
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Summary: Mesos does not expose TM Prometheus port
Key: FLINK-9703
URL: https://issues.apache.org/jira/browse/FLINK-9703
Project: Flink
Issue Type: Bug
Components: Mesos
Reporter: Rune Skou Larsen
LaunchableMesosWorker makes Mesos expose these ports for a Task Manager:
{{private static final String[] TM_PORT_KEYS = {}}
{{ "taskmanager.rpc.port",}}
{{ "taskmanager.data.port"};}}
But when running Prometheus Exporter on a TM, another port needs to be exposed
to make Flink's Prometheos endpoint externally scrapable by the Prometheus
server. By default this is port 9249, but it is configurable according to:
[https://ci.apache.org/projects/flink/flink-docs-release-1.6/monitoring/metrics.html#prometheus-orgapacheflinkmetricsprometheusprometheusreporter]
My plan is to make a PR, that just adds another config option for mesos, to
enable custom ports to be exposed in the provisioned TMs.
I considered carrying parts of the Metrics config into the Mesos code to
automatically map metrics ports in mesos. But making such a "shortcut" between
Flink's metrics and mesos modules would probably need some sort of integration
testing, so I prefer the simple solution of just adding another Mesos config
option. But comments are welcome.
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