GitHub user maropu opened a pull request:
https://github.com/apache/spark/pull/4136
[SPARK-5351][GraphX] Do not use Partitioner.defaultPartitioner as a
partitioner of EdgeRDDImp...
If the value of 'spark.default.parallelism' does not match the number of
partitoins in EdgePartition(EdgeRDDImpl),
the following error occurs in ReplicatedVertexView.scala:72;
object GraphTest extends Logging {
def run[VD: ClassTag, ED: ClassTag](graph: Graph[VD, ED]): VertexRDD[Int]
= {
graph.aggregateMessages[Int](
ctx => {
ctx.sendToSrc(1)
ctx.sendToDst(2)
},
_ + _)
}
}
val g = GraphLoader.edgeListFile(sc, "graph.txt")
val rdd = GraphTest.run(g)
java.lang.IllegalArgumentException: Can't zip RDDs with unequal numbers of
partitions
at
org.apache.spark.rdd.ZippedPartitionsBaseRDD.getPartitions(ZippedPartitionsRDD.scala:57)
at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:206)
at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:204)
at scala.Option.getOrElse(Option.scala:120)
at org.apache.spark.rdd.RDD.partitions(RDD.scala:204)
at
org.apache.spark.rdd.MapPartitionsRDD.getPartitions(MapPartitionsRDD.scala:32)
at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:206)
at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:204)
at scala.Option.getOrElse(Option.scala:120)
at org.apache.spark.rdd.RDD.partitions(RDD.scala:204)
at org.apache.spark.ShuffleDependency.<init>(Dependency.scala:82)
at
org.apache.spark.rdd.ShuffledRDD.getDependencies(ShuffledRDD.scala:80)
at org.apache.spark.rdd.RDD$$anonfun$dependencies$2.apply(RDD.scala:193)
at org.apache.spark.rdd.RDD$$anonfun$dependencies$2.apply(RDD.scala:191)
...
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/maropu/spark EdgePartitionBugFix
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/4136.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #4136
----
commit 0a2f32b0283b4fe319a23f7f4541d1531ddcbab2
Author: Takeshi Yamamuro <[email protected]>
Date: 2015-01-21T15:59:58Z
Do not use Partitioner.defaultPartitioner as a partitioner of EdgeRDDImpl
----
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