Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/7274#discussion_r34855500
--- Diff: core/src/main/scala/org/apache/spark/deploy/master/Master.scala
---
@@ -544,58 +544,82 @@ private[master] class Master(
* has enough cores and memory. Otherwise, each executor grabs all the
cores available on the
* worker by default, in which case only one executor may be launched on
each worker.
--- End diff --
can you add to this java doc what the new return type is? Also, it would be
good to add a short paragraph to explain the necessity to allocate N cores at a
time, and give an example of where allocating 1 core at a time fails.
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