Github user sitalkedia commented on the issue:
https://github.com/apache/spark/pull/19048
To be clear there is no issue on EAM side. Consider the following situation
-
- 10 executors are running, each executor can run 4 tasks at max.
- 20 tasks are running so EAM sets the internal target to 5 and also asks
the CGSB to set its `requestedTotalExecutors` to 5. However, it can not kill
any executor yet because all of them have atleast one running tasks.
- 2 tasks on 2 executors succeeds, now the target is still 5 (18/4), but
the EAM asks the scheduler to kill 2 of them.
- The scheduler decieds to kill 2 of them and sets the new target as 3.
While the EAM has set the target as 5.
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