Arvid Heise created FLINK-35796:
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Summary: Ensure that MailboxExecutor.submit is used correctly
Key: FLINK-35796
URL: https://issues.apache.org/jira/browse/FLINK-35796
Project: Flink
Issue Type: Bug
Components: Runtime / Task
Affects Versions: 2.0.0
Reporter: Arvid Heise
Assignee: Arvid Heise
https://issues.apache.org/jira/browse/FLINK-34470 showed that
MailboxExecutor.submit may result in unexpected exception handling: while
{{execute}} will bubble up the exception in the task thread and result in some
fault, {{submit}} can hide the exception because the API assumes that the
returned {{Future}} is checked for it explicitly or implicitly.
We can solve the situation by improving the doc of MailboxExecutor and
double-check the internal usages.
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