Undoing destroy

Author: Yves Raimond

graphx/src/main/scala/org/apache/spark/graphx/lib/PageRank.scala

@@ -232,16 +232,15 @@ object PageRank extends Logging {
       rankGraph.edges.foreachPartition(x => {}) // also materializes rankGraph.vertices
       prevRankGraph.vertices.unpersist(false)
       prevRankGraph.edges.unpersist(false)
-      sourcesInitMapBC.destroy(false)
 
       logInfo(s"Parallel Personalized PageRank finished iteration $i.")
 
       i += 1
     }
 
     rankGraph.mapVertices { (vid, attr) =>
-        Vectors.fromBreeze(attr)
-      }
+      Vectors.fromBreeze(attr)
+    }
   }
 
   /**