Github user kayousterhout commented on a diff in the pull request:
https://github.com/apache/spark/pull/16813#discussion_r99717574
--- Diff:
core/src/main/scala/org/apache/spark/scheduler/SchedulableBuilder.scala ---
@@ -69,19 +72,29 @@ private[spark] class FairSchedulableBuilder(val
rootPool: Pool, conf: SparkConf)
val DEFAULT_WEIGHT = 1
override def buildPools() {
- var is: Option[InputStream] = None
+ var fileData: Option[FileData] = None
try {
- is = Option {
- schedulerAllocFile.map { f =>
- new FileInputStream(f)
- }.getOrElse {
-
Utils.getSparkClassLoader.getResourceAsStream(DEFAULT_SCHEDULER_FILE)
+ fileData = schedulerAllocFile.map { f =>
+ Some(FileData(new FileInputStream(f), f))
+ }.getOrElse {
+ val is =
Utils.getSparkClassLoader.getResourceAsStream(DEFAULT_SCHEDULER_FILE)
+ if(is != null) Some(FileData(is, DEFAULT_SCHEDULER_FILE))
+ else {
+ logWarning(s"No Fair Scheduler file found.")
+ None
}
}
- is.foreach { i => buildFairSchedulerPool(i) }
+ fileData.foreach { data =>
+ logInfo(s"Fair Scheduler file: ${data.fileName} is found
successfully and will be parsed.")
+ buildFairSchedulerPool(data.inputStream)
+ }
+ } catch {
+ case NonFatal(t) =>
+ logError("Fair Scheduler can not be built.", t)
--- End diff --
How about "Error while building the fair scheduler pools: ", t
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