Github user sryza commented on the pull request:
https://github.com/apache/spark/pull/4051#issuecomment-70613708
I updated the patch to add a `spark.dynamicAllocation.initialExecutors`
property. I also removed the requirement to set min/maxExecutors, so the user
now only needs to configure any numbers if they want to tune for performance.
The min now defaults to 0 and the max to Integer.MAX_VALUE. I looked through
the code and it seems like this should be safe, but @andrewor14 let me know if
there are reasons I missed why these needed to be required.
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