Skip to content

[SPARK-3292][streaming]Fix:Shuffle Tasks run incessantly even though there's no inputs #2192

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Closed
guowei2 wants to merge 2 commits into from
Closed

[SPARK-3292][streaming]Fix:Shuffle Tasks run incessantly even though there's no inputs #2192

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
69580b4
SPARK-3292
guowei2 Aug 29, 2014
946b69a
SPARK-3292
guowei2 Sep 2, 2014
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
6 changes: 5 additions & 1 deletion streaming/src/main/scala/org/apache/spark/streaming/dstream/DStream.scala
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -302,7 +302,11 @@ abstract class DStream[T: ClassTag] (
" for checkpointing at time " + time)
}
generatedRDDs.put(time, newRDD)
Some(newRDD)
if (newRDD.partitions.size > 0) {
Some(newRDD)
} else {
None
}
case None =>
None
}
Expand Down
8 changes: 6 additions & 2 deletions streaming/src/main/scala/org/apache/spark/streaming/dstream/TransformedDStream.scala
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -37,7 +37,11 @@ class TransformedDStream[U: ClassTag] (
override def slideDuration: Duration = parents.head.slideDuration

override def compute(validTime: Time): Option[RDD[U]] = {
val parentRDDs = parents.map(_.getOrCompute(validTime).orNull).toSeq
Some(transformFunc(parentRDDs, validTime))
val parentRDDs = parents.map(_.getOrCompute(validTime).orNull).filter(_ != null).toSeq
if (parentRDDs.size > 0) {
Some(transformFunc(parentRDDs, validTime))
} else {
None
}
}
}
3 changes: 1 addition & 2 deletions streaming/src/main/scala/org/apache/spark/streaming/dstream/UnionDStream.scala
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -48,8 +48,7 @@ class UnionDStream[T: ClassTag](parents: Array[DStream[T]])
val rdds = new ArrayBuffer[RDD[T]]()
parents.map(_.getOrCompute(validTime)).foreach(_ match {
case Some(rdd) => rdds += rdd
case None => throw new Exception("Could not generate RDD from a parent for unifying at time "
+ validTime)
case None => rdds
})
if (rdds.size > 0) {
Some(new UnionRDD(ssc.sc, rdds))
Expand Down