On the job details page in the Exceptions → Root Exception tab, exceptions that cause the job to restart are not displayed.
This is already a problem since 1.9.0 if jobmanager.execution.failover-strategy: region is configured,
which we do in the default flink-conf.yaml.
Users that run into this problem can set jobmanager.scheduler: legacy and unset jobmanager.execution.failover-strategy in their flink-conf.yaml
How to reproduce
In flink-conf.yaml set restart-strategy: fixed-delay so enable job restarts.
Assert that no exception is displayed in the Web UI.
The stacktrace of the exception should be displayed. Whether the exception should be also shown if only a partial region of the job failed is up for discussion.