Github user zentol commented on the issue:
https://github.com/apache/flink/pull/3709
@WangTaoTheTonic I get that, but when the EG is garbage-collected it also
means the job was removed from the JM. Not just from the set of running jobs,
but also from the history of finished jobs. While that does mean it can still
be displayed in the web-ui until the GC happens, it doesn't explain that the
display of task states is outdated. Especially since you say the tasks were
actually running later on, which contradicts the idea that the EG was GC'd in
the first place.
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