[jira] [Created] (FLINK-9776) Interrupt TaskThread only while in User/Operator code

[Shang Yuanchun (Jira)]

Stephan Ewen created FLINK-9776:
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             Summary: Interrupt TaskThread only while in User/Operator code
                 Key: FLINK-9776
                 URL: https://issues.apache.org/jira/browse/FLINK-9776
             Project: Flink
          Issue Type: Improvement
          Components: Local Runtime
            Reporter: Stephan Ewen
            Assignee: Stephan Ewen
             Fix For: 1.6.0


Upon cancellation, the task thread is periodically interrupted.
This helps to pull the thread out of blocking operations in the user code.

Once the thread leaves the user code, the repeated interrupts may interfere with the shutdown cleanup logic, causing confusing exceptions.

We should stop sending the periodic interrupts once the thread leaves the user code.



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