[jira] [Closed] (FLINK-24182) Tasks canceler should not immediately interrupt

["Piotr Nowojski (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-24182?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Piotr Nowojski closed FLINK-24182.
----------------------------------
    Resolution: Fixed

Merged to master as 53592f88d4b..026675a5cb8 with keeping interruptions in clean cancelation 

> Tasks canceler should not immediately interrupt
> -----------------------------------------------
>
>                 Key: FLINK-24182
>                 URL: https://issues.apache.org/jira/browse/FLINK-24182
>             Project: Flink
>          Issue Type: Improvement
>          Components: Runtime / Task
>            Reporter: Arvid Heise
>            Assignee: Piotr Nowojski
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.15.0
>
>
> While debugging resource leaks (FLINK-24131), I found that any connector is immediately interrupted on cancel. Hence, any attempts of using blocking calls in {{close}} to cleanup resources are immediately unreliable (e.g. aborting transactions).
> It would be nice if tasks get a grace period (e.g. task.cancellation.interval) where they can try to free resources in a proper, potentially blocking fashion before being interrupted.
> Nevertheless, connectors should always expect interruptions during shutdown, in particular when the user-configurable grace period is depleted. I'd add that to the connector documentation in a separate effort.



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