Github user andrewor14 commented on the pull request:
https://github.com/apache/spark/pull/3861#issuecomment-69078887
Hi @tnachen thanks for your work. I will do a closer review within the next
few days. First I have a high level question. IIUC, the changes in this PR
basically enable the dynamic allocation feature to be used with Mesos
coarse-grained mode. However, in Mesos I believe we express the amount of
resources an application wants in terms of cores, not the number of executors.
Is the concern raised in
[SPARK-4751](https://issues.apache.org/jira/browse/SPARK-4751) for standalone
mode relevant here?
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