Github user erenavsarogullari commented on a diff in the pull request: https://github.com/apache/spark/pull/16813#discussion_r100398573 --- 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 -- This case happens when `spark.scheduler.allocation.file ` property is not set and default scheduler file does not exist in classpath so warning message is not specific for only default one. I think current generic message looks more suitable, WDYT?
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