Github user srowen commented on the pull request:
https://github.com/apache/spark/pull/9523#issuecomment-154516259
This looks like the right fix (modulo the long line). Should the param be
something like a "current num executors" or a "default"? its default value is a
default value after all.
It sort of seems like `--num-executors` could be used to set the initial
num executors under dynamic allocation if not already set, but maybe that's
best left untouched.
CC @jerryshao
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