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Pregel example type fix

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Pregel example to express single source shortest path from https://spark.apache.org/docs/latest/graphx-programming-guide.html#pregel-api does not work due to incorrect type. The reason is that `GraphGenerators.logNormalGraph` returns the graph with `Long` vertices. Fixing `val graph: Graph[Int, Double]` to `val graph: Graph[Long, Double]`.

Author: Alexander Ulanov <nashb@yandex.ru>

Closes #7695 from avulanov/SPARK-9380-pregel-doc and squashes the following commits:

c269429 [Alexander Ulanov] Pregel example type fix
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Alexander Ulanov 2015-07-28 01:33:31 +09:00 committed by Kousuke Saruta
parent aa19c696e2
commit 90006f3c51
1 changed files with 1 additions and 1 deletions
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docs/graphx-programming-guide.md
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@ -800,7 +800,7 @@ import org.apache.spark.graphx._
// Import random graph generation library
import org.apache.spark.graphx.util.GraphGenerators
// A graph with edge attributes containing distances
val graph: Graph[Int, Double] =
val graph: Graph[Long, Double] =
GraphGenerators.logNormalGraph(sc, numVertices = 100).mapEdges(e => e.attr.toDouble)
val sourceId: VertexId = 42 // The ultimate source
// Initialize the graph such that all vertices except the root have distance infinity.