Github user jerryshao commented on a diff in the pull request:
https://github.com/apache/spark/pull/18322#discussion_r122927744
--- Diff: core/src/main/scala/org/apache/spark/SparkConf.scala ---
@@ -543,6 +543,30 @@ class SparkConf(loadDefaults: Boolean) extends
Cloneable with Logging with Seria
}
}
+ if (contains("spark.cores.max")) {
+ val totalCores = getInt("spark.cores.max", -1)
+ if (totalCores <= 0) {
+ throw new IllegalArgumentException(s"spark.cores.max (was
${get("spark.cores.max")})" +
+ s" can only be a positive number")
+ }
+ }
+ if (contains("spark.executor.cores")) {
+ val executorCores = getInt("spark.executor.cores", -1)
+ if (executorCores <= 0) {
+ throw new IllegalArgumentException(s"spark.executor.cores " +
+ s"(was ${get("spark.executor.cores")}) can only be a positive
number")
+ }
+ }
+ if (contains("spark.cores.max") && contains("spark.executor.cores")) {
--- End diff --
I think we could move the negative check to here to simplify the code.
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