Github user wangyum commented on the issue:
https://github.com/apache/spark/pull/16819
@vanzin What do you think about current approach? I have tested on a same
Spark hive-thriftserver, the `spark.dynamicAllocation.maxExecutors` wiil
decrease if I kill 4 NodeManager:
```
17/02/27 15:58:08 DEBUG ExecutorAllocationManager: Not adding executors
because our current target total is already 94 (limit 94)
17/02/27 15:58:09 DEBUG ExecutorAllocationManager: Not adding executors
because our current target total is already 94 (limit 94)
17/02/27 16:05:49 DEBUG ExecutorAllocationManager: Not adding executors
because our current target total is already 85 (limit 85)
17/02/27 16:05:49 DEBUG ExecutorAllocationManager: Not adding executors
because our current target total is already 85 (limit 85)
```
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