Arvid Heise created FLINK-24182: ----------------------------------- Summary: 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
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. -- This message was sent by Atlassian Jira (v8.3.4#803005)