Kaibo Zhou created FLINK-13787:
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Summary: PrometheusPushGatewayReporter does not cleanup TM metrics
when run on kubernetes
Key: FLINK-13787
URL: https://issues.apache.org/jira/browse/FLINK-13787
Project: Flink
Issue Type: Bug
Components: Runtime / Metrics
Affects Versions: 1.8.1, 1.7.2, 1.9.0
Reporter: Kaibo Zhou
I have run a flink job on kubernetes and use PrometheusPushGatewayReporter, I
can see the metrics from the flink jobmanager and taskmanager from the push
gateway's UI.
When I cancel the job, I found the jobmanager's metrics disappear, but the
taskmanager's metrics still exist, even though I have set the
_deleteOnShutdown_ to true_._
The configuration is:
{code:java}
metrics.reporters: "prom"
metrics.reporter.prom.class:
"org.apache.flink.metrics.prometheus.PrometheusPushGatewayReporter"
metrics.reporter.prom.jobName: "WordCount"
metrics.reporter.prom.host: "localhost"
metrics.reporter.prom.port: "9091"
metrics.reporter.prom.randomJobNameSuffix: "true"
metrics.reporter.prom.filterLabelValueCharacters: "true"
metrics.reporter.prom.deleteOnShutdown: "true"
{code}
Other people have also encountered this problem:
[link|[https://stackoverflow.com/questions/54420498/flink-prometheus-push-gateway-reporter-delete-metrics-on-job-shutdown]].
And another similar issue:
[FLINK-11457|https://issues.apache.org/jira/browse/FLINK-11457].
As prometheus is a very import metrics system on kubernetes, if we can solve
this problem, it is beneficial for users to monitor their flink jobs.
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