[jira] [Resolved] (SPARK-12655) GraphX does not unpersist RDDs

["Sean Owen (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-12655?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean Owen resolved SPARK-12655.
-------------------------------
       Resolution: Fixed
    Fix Version/s: 2.0.0

Issue resolved by pull request 10713
[https://github.com/apache/spark/pull/10713]

> GraphX does not unpersist RDDs
> ------------------------------
>
>                 Key: SPARK-12655
>                 URL: https://issues.apache.org/jira/browse/SPARK-12655
>             Project: Spark
>          Issue Type: Bug
>          Components: GraphX
>    Affects Versions: 1.5.2, 1.6.0
>            Reporter: Alexander Pivovarov
>            Priority: Minor
>             Fix For: 2.0.0
>
>
> Looks like Graph does not clean all RDDs from the cache on unpersist
> {code}
> // open spark-shell 1.5.2 or 1.6.0
> // run
> import org.apache.spark.graphx._
> val vert = sc.parallelize(List((1L, 1), (2L, 2), (3L, 3)), 1)
> val edges = sc.parallelize(List(Edge[Long](1L, 2L), Edge[Long](1L, 3L)), 1)
> val g0 = Graph(vert, edges)
> val g = g0.partitionBy(PartitionStrategy.EdgePartition2D, 2)
> val cc = g.connectedComponents()
> cc.unpersist()
> g.unpersist()
> g0.unpersist()
> vert.unpersist()
> edges.unpersist()
> {code}
> open http://localhost:4040/storage/
> Spark UI 4040 Storage page still shows 2 items
> {code}
> VertexRDD      Memory Deserialized 1x Replicated   1  100%    1688.0 B   0.0 B  0.0 B
> EdgeRDD        Memory Deserialized 1x Replicated   2  100%      4.7 KB   0.0 B  0.0 B
> {code}



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