Github user srowen commented on a diff in the pull request:
https://github.com/apache/spark/pull/16250#discussion_r91857699
--- Diff: core/src/main/scala/org/apache/spark/scheduler/DAGScheduler.scala
---
@@ -333,16 +333,16 @@ class DAGScheduler(
// (so we don't unnecessarily re-compute that data).
val serLocs =
mapOutputTracker.getSerializedMapOutputStatuses(shuffleDep.shuffleId)
val locs = MapOutputTracker.deserializeMapStatuses(serLocs)
- (0 until locs.length).foreach { i =>
- if (locs(i) ne null) {
- // locs(i) will be null if missing
- stage.addOutputLoc(i, locs(i))
+ locs.zipWithIndex
+ .filter { case (status, _) => status != null } // null if missing
+ .foreach { case (ms, idx) =>
+ stage.addOutputLoc(idx, ms)
}
- }
} else {
// Kind of ugly: need to register RDDs with the cache and map output
tracker here
// since we can't do it in the RDD constructor because # of
partitions is unknown
- logInfo("Registering RDD " + rdd.id + " (" + rdd.getCreationSite +
")")
+ logInfo(s"Registering RDD ${rdd.id} (partitions:
${rdd.partitions.length}, " +
--- End diff --
No big deal but this is changing the log message too
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