Github user squito commented on a diff in the pull request:

    https://github.com/apache/spark/pull/15237#discussion_r94501723
  
    --- Diff: 
core/src/main/scala/org/apache/spark/scheduler/SchedulableBuilder.scala ---
    @@ -102,38 +103,52 @@ private[spark] class FairSchedulableBuilder(val 
rootPool: Pool, conf: SparkConf)
         for (poolNode <- (xml \\ POOLS_PROPERTY)) {
     
           val poolName = (poolNode \ POOL_NAME_PROPERTY).text
    -      var schedulingMode = DEFAULT_SCHEDULING_MODE
    -      var minShare = DEFAULT_MINIMUM_SHARE
    -      var weight = DEFAULT_WEIGHT
    -
    -      val xmlSchedulingMode = (poolNode \ SCHEDULING_MODE_PROPERTY).text
    -      if (xmlSchedulingMode != "") {
    -        try {
    -          schedulingMode = SchedulingMode.withName(xmlSchedulingMode)
    -        } catch {
    -          case e: NoSuchElementException =>
    -            logWarning(s"Unsupported schedulingMode: $xmlSchedulingMode, " 
+
    -              s"using the default schedulingMode: $schedulingMode")
    -        }
    -      }
     
    -      val xmlMinShare = (poolNode \ MINIMUM_SHARES_PROPERTY).text
    -      if (xmlMinShare != "") {
    -        minShare = xmlMinShare.toInt
    -      }
    +      val xmlSchedulingMode = (poolNode \ 
SCHEDULING_MODE_PROPERTY).text.trim.toUpperCase
    +      val schedulingMode = getSchedulingModeValue(xmlSchedulingMode, 
DEFAULT_SCHEDULING_MODE)
    --- End diff --
    
    this is minor, but if you're going to have a helper method here, can you do 
*all* the parsing inside it?  include the one line above `(poolNode \ 
SCHEDULING_MODE_PROPERTY).text.trim.toUpperCase`.
    
    Same goes for `getIntValue`


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