[jira] [Created] (FLINK-15917) Root Exception not shown in Web UI

["Gary Yao (Jira)" <ji...@apache.org>]

Gary Yao created FLINK-15917:
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             Summary: Root Exception not shown in Web UI
                 Key: FLINK-15917
                 URL: https://issues.apache.org/jira/browse/FLINK-15917
             Project: Flink
          Issue Type: Bug
          Components: Runtime / Coordination
    Affects Versions: 1.9.2, 1.10.0
            Reporter: Gary Yao
             Fix For: 1.11.0, 1.10.1


*Description*
 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.

*Workarounds*
 Users that run into this problem can set {{jobmanager.scheduler: legacy}} in their {{flink-conf.yaml}}

*How to reproduce*
 In {{flink-conf.yaml}} set {{restart-strategy: fixed-delay}} so enable job restarts.
{noformat}
$ bin/start-cluster.sh
$ bin/flink run -d examples/streaming/TopSpeedWindowing.jar
$ bin/taskmanager.sh stop
{noformat}
Assert that no exception is displayed in the Web UI.

*Expected behavior*
 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.



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