cloud-fan commented on a change in pull request #26633: [SPARK-29994][CORE] Add
WILDCARD task location
URL: https://github.com/apache/spark/pull/26633#discussion_r351185771
##########
File path: core/src/main/scala/org/apache/spark/scheduler/TaskSetManager.scala
##########
@@ -218,28 +218,33 @@ private[spark] class TaskSetManager(
speculatable: Boolean = false): Unit = {
val pendingTaskSetToAddTo = if (speculatable) pendingSpeculatableTasks
else pendingTasks
for (loc <- tasks(index).preferredLocations) {
- loc match {
- case e: ExecutorCacheTaskLocation =>
- pendingTaskSetToAddTo.forExecutor.getOrElseUpdate(e.executorId, new
ArrayBuffer) += index
- case e: HDFSCacheTaskLocation =>
- val exe = sched.getExecutorsAliveOnHost(loc.host)
- exe match {
- case Some(set) =>
- for (e <- set) {
- pendingTaskSetToAddTo.forExecutor.getOrElseUpdate(e, new
ArrayBuffer) += index
- }
- logInfo(s"Pending task $index has a cached location at ${e.host}
" +
- ", where there are executors " + set.mkString(","))
- case None => logDebug(s"Pending task $index has a cached location
at ${e.host} " +
- ", but there are no executors alive there.")
- }
- case _ =>
- }
- pendingTaskSetToAddTo.forHost.getOrElseUpdate(loc.host, new ArrayBuffer)
+= index
+ if (loc == WildcardLocation) {
Review comment:
does `case WildcardLocation =>` work?
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