Major Description
In RedundantScheduleTransition (inside TaskImpl), we try to find the oldest running attempt and use it as the causual attempt when doing "addAndScheduleAttempt".
However, the task may have completed at this moment, i.e., the task attempt that was considered running and long-tailed by speculator is now completed. In this case, we may not be able to find any unfinished attempt, which will lead to NPE in following logic (even without NPE, it still makes no sense to proceed with scheduling speculative attempt anyway)
Attachments
Attachments
Issue Links
- links to
