[jira] [Created] (SPARK-17877) Can not checkpoint connectedComponents resulting graph

["Alexander Pivovarov (JIRA)" <ji...@apache.org>]

Alexander Pivovarov created SPARK-17877:
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             Summary: Can not checkpoint connectedComponents resulting graph
                 Key: SPARK-17877
                 URL: https://issues.apache.org/jira/browse/SPARK-17877
             Project: Spark
          Issue Type: Bug
          Components: GraphX
    Affects Versions: 2.0.1, 1.6.2, 1.5.2
            Reporter: Alexander Pivovarov
            Priority: Minor


The following code demonstrates an issue
{code}
import org.apache.spark.graphx._
val users = sc.parallelize(List((3L, ("lucas", "student")), (7L, ("john", "postdoc")), (5L, ("matt", "prof")), (2L, ("kelly", "prof"))))
val rel = sc.parallelize(List(Edge(3L, 7L, "collab"), Edge(5L, 3L, "advisor"), Edge(2L, 5L, "colleague"), Edge(5L, 7L, "pi")))
sc.setCheckpointDir("/tmp/check")

val g = Graph(users, rel)
g.checkpoint

val gg = g.connectedComponents()
gg.checkpoint

gg.vertices.collect
gg.edges.collect
gg.isCheckpointed
// res5: Boolean = false
```
I think the last line should return true instead of false



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