Ngone51 commented on a change in pull request #28053: [SPARK-29153][CORE]Add
ability to merge resource profiles within a stage with Stage Level Scheduling
URL: https://github.com/apache/spark/pull/28053#discussion_r401370604
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File path: core/src/main/scala/org/apache/spark/scheduler/DAGScheduler.scala
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@@ -447,10 +449,28 @@ private[spark] class DAGScheduler(
stageResourceProfiles: HashSet[ResourceProfile]): ResourceProfile = {
logDebug(s"Merging stage rdd profiles: $stageResourceProfiles")
val resourceProfile = if (stageResourceProfiles.size > 1) {
- // add option later to actually merge profiles - SPARK-29153
- throw new IllegalArgumentException("Multiple ResourceProfile's specified
in the RDDs for " +
- "this stage, please resolve the conflicting ResourceProfile's as Spark
doesn't" +
- "currently support merging them.")
+ if (shouldMergeResourceProfiles) {
+ var mergedProfile: ResourceProfile = stageResourceProfiles.head
+ for (profile <- stageResourceProfiles.drop(1)) {
+ mergedProfile = mergeResourceProfiles(mergedProfile, profile)
+ }
+ // compared merged profile with existing ones so we we don't add it
over and over again
+ // if the user runs the same operation multiple times
+ val resProfile =
sc.resourceProfileManager.getEquivalentProfile(mergedProfile)
+ resProfile match {
+ case Some(existingRp) => existingRp
Review comment:
Yeah, I just want to make sure that my understanding is correct here by
asking the question. Thanks for your explanation.
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