Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/5574#discussion_r28916137
--- Diff: core/src/main/scala/org/apache/spark/SparkConf.scala ---
@@ -432,6 +505,21 @@ private[spark] object SparkConf extends Logging {
AlternateConfig("spark.yarn.applicationMaster.waitTries", "1.3",
// Translate old value to a duration, with 10s wait time per try.
translation = s => s"${s.toLong * 10}s")),
+ "spark.reducer.maxSizeInFlight" -> Seq(
+ AlternateConfig("spark.reducer.maxMbInFlight", "1.4")),
+ "spark.kryoserializer.buffer" ->
+ Seq(AlternateConfig("spark.kryoserializer.buffer.mb", "1.4",
+ translation = s => s"${s.toDouble * 1000}k")),
--- End diff --
I think since you're adding the new config, it's fine to not allow the old
config take the new style. If you really want to support that, you could try to
parse the config using the new API in an exception handler.
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