Github user erenavsarogullari commented on a diff in the pull request:
https://github.com/apache/spark/pull/16813#discussion_r100409787
--- Diff:
core/src/main/scala/org/apache/spark/scheduler/SchedulableBuilder.scala ---
@@ -69,19 +70,31 @@ private[spark] class FairSchedulableBuilder(val
rootPool: Pool, conf: SparkConf)
val DEFAULT_WEIGHT = 1
override def buildPools() {
- var is: Option[InputStream] = None
+ var fileData: Option[(InputStream, String)] = None
try {
- is = Option {
- schedulerAllocFile.map { f =>
- new FileInputStream(f)
- }.getOrElse {
-
Utils.getSparkClassLoader.getResourceAsStream(DEFAULT_SCHEDULER_FILE)
+ fileData = schedulerAllocFile.map { f =>
+ val fis = new FileInputStream(f)
+ logInfo(s"Creating Fair Scheduler pools from $f")
+ Some((fis, f))
+ }.getOrElse {
+ val is =
Utils.getSparkClassLoader.getResourceAsStream(DEFAULT_SCHEDULER_FILE)
+ if (is != null) {
+ logInfo(s"Creating Fair Scheduler pools from default file:
$DEFAULT_SCHEDULER_FILE")
+ Some((is, DEFAULT_SCHEDULER_FILE))
+ } else {
+ logWarning("Fair Scheduler configuration file not found so jobs
will be scheduled " +
--- End diff --
Exactly, i totally agree for informing the user about how to fix the
problem. Addressing by adding information.
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