In private class Tracker of org.apache.spark.scheduler.dynalloc.ExecutorMonitor, the method ` updateTimeout <https://github.com/apache/spark/blob/e1a5d9411733437b5a18045bbd18b48f7aa40f46/core/src/main/scala/org/apache/spark/scheduler/dynalloc/ExecutorMonitor.scala#L567>` will take the min of `_cacheTimeout` and `_shuffleTimeout`. I think is more reasonable to take the max of `_cacheTimeout` and `_shuffleTimeout`, since we need to wait both of cache and shuffle to be timeout if they all be set. Any one known about that?
