Cookies created SPARK-4249:
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Summary: A problem of EdgePartitionBuilder in Graphx
Key: SPARK-4249
URL: https://issues.apache.org/jira/browse/SPARK-4249
Project: Spark
Issue Type: Bug
Components: GraphX
Affects Versions: 1.1.0
Reporter: Cookies
Priority: Minor
https://github.com/apache/spark/blob/master/graphx/src/main/scala/org/apache/spark/graphx/impl/EdgePartitionBuilder.scala#L48
in function toEdgePartition, code snippet
index.update(srcIds(0), 0)
the elements in array srcIds are all not initialized and are all 0. The effect
is that if vertex ids don't contain 0, indexSize is equal to (realIndexSize +
1) and 0 is added to the `index`
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