dimberman opened a new issue #7925: Kill task instances that haven't been able to heartbeat for a while URL: https://github.com/apache/airflow/issues/7925 **Description** A task run by the LocalTaskJob periodically updates a timestamp to indicate that the task is still alive and running. If the task is unable to update this timestamp for a long time (for example, due to DB connection errors), the scheduler may reschedule the task to run again. In such a case, it's possible that two instances of the task are running. The task can monitor the time since last heartbeat and kill itself to prevent such cases. **Use case / motivation** **Related Issues** Moved here from https://issues.apache.org/jira/browse/AIRFLOW-374
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