Use the Flink UI to monitor Flink jobs

Use the kubectl port-forward command to forward a local port to the port on which the Flink Web Dashboard is running in the Flink application's TaskManager pods. By default, this port is 8081. Replace deployment-name with the name of the Flink application deployment from above.

kubectl get deployments -n namespace

Example output:

kubectl get deployments -n flink-namespace
NAME                        READY   UP-TO-DATE   AVAILABLE  AGE
basic-example               1/1       1            1           11m
flink-kubernetes-operator   1/1       1            1           21h

kubectl port-forward deployments/deployment-name 8081 -n namespace

If you want to use a different port locally, use the local-port:8081 parameter.

kubectl port-forward -n flink deployments/basic-example 8080:8081

In a web browser, navigate to http://localhost:8081 (or http://localhost:local-port if you used a custom local port) to access the Flink Web Dashboard. This dashboard shows information about the running Flink application, such as the status of the job, the number of TaskManagers, and the metrics and logs for the job.