Bruce Chen created SPARK-8292:
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Summary: ShortestPaths run with error result
Key: SPARK-8292
URL: https://issues.apache.org/jira/browse/SPARK-8292
Project: Spark
Issue Type: Bug
Components: GraphX
Affects Versions: 1.3.1
Environment: Ubuntu 64bit
Reporter: Bruce Chen
Fix For: 1.3.1
In graphx/lib/ShortestPaths, i run an example with input data:
0\t2
0\t4
2\t3
3\t6
4\t2
4\t5
5\t3
5\t6
then i write a function and set point '0' as the source point, and calculate
the shortest path from point 0 to the others points, the code like this:
val source: Seq[VertexId] = Seq(0)
val ss = ShortestPaths.run(graph, source)
then, i get the run result of all the vertex's shortest path value:
(4,Map())
(0,Map(0 -> 0))
(6,Map())
(3,Map())
(5,Map())
(2,Map())
but the right result should be:
(4,Map(0 -> 1))
(0,Map(0 -> 0))
(6,Map(0 -> 3))
(3,Map(0 -> 2))
(5,Map(0 -> 2))
(2,Map(0 -> 1))
so, i check the source code of
spark/graphx/src/main/scala/org/apache/spark/graphx/lib/ShortestPaths.scala
and find a bug.
The patch list in the following.
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