Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/731#discussion_r27924903
--- Diff:
core/src/main/scala/org/apache/spark/deploy/SparkSubmitArguments.scala ---
@@ -480,10 +480,15 @@ private[deploy] class SparkSubmitArguments(args:
Seq[String], env: Map[String, S
| Spark standalone and Mesos only:
| --total-executor-cores NUM Total cores for all executors.
|
+ | Spark standalone and YARN only:
+ | --executor-cores NUM Number of cores to use on each
executor. Default:
+ | 1 in YARN mode; in standalone mode,
all cores in a worker
+ | allocated to an application will be
assigned to a single
+ | executor.
--- End diff --
I would rephrase this as:
Number of cores per executor. (Default: 1 in YARN mode, or all available
cores on the worker in standalone mode)
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