viirya commented on a change in pull request #24531: [SPARK-27636][MLLIB]Remove
cached RDD blocks after PIC execution
URL: https://github.com/apache/spark/pull/24531#discussion_r281049991
##########
File path:
mllib/src/main/scala/org/apache/spark/mllib/clustering/PowerIterationClustering.scala
##########
@@ -296,12 +295,15 @@ object PowerIterationClustering extends Logging {
},
mergeMsg = _ + _,
TripletFields.EdgeOnly)
- Graph(vD, gA.edges)
- .mapTriplets(
- e => e.attr / math.max(e.srcAttr, MLUtils.EPSILON),
- new TripletFields(/* useSrc */ true,
- /* useDst */ false,
- /* useEdge */ true))
+ val graph = Graph(vD, gA.edges).mapTriplets(
+ e => e.attr / math.max(e.srcAttr, MLUtils.EPSILON),
+ new TripletFields(/* useSrc */ true,
+ /* useDst */ false,
+ /* useEdge */ true))
+ materialize(graph)
+ gA.unpersist()
Review comment:
Is `gA` persisted? I don't look into it very deeply inside
`Graph.fromEdges`, but seems it shouldn't persist it silently.
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
With regards,
Apache Git Services
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
