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https://issues.apache.org/jira/browse/SPARK-34517?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17300573#comment-17300573
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Sean R. Owen commented on SPARK-34517:
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That's wild. I think this is a Breeze issue really. Are you saying Spark code
has this comparison or your code? Things like ```(zero :== vec).forall(x =>
x)``` "work" but is that really how to compare elements in a vector in Breeze?
> breeze.linalg.SparseVector.equals always return true may bring error.
> ---------------------------------------------------------------------
>
> Key: SPARK-34517
> URL: https://issues.apache.org/jira/browse/SPARK-34517
> Project: Spark
> Issue Type: Bug
> Components: GraphX
> Affects Versions: 3.0.2
> Environment: OpenJDK 1.8.0_275
> Scala 2.12.10
> Hadoop 3.3.0
> Spark 3.0.2
> Reporter: MiKou
> Priority: Major
>
> I implemented an iterative graph algorithm with 'breeze.linalg.SparseVector'
> just like 'Graph.staticParallelPersonalizedPageRank' does. However, the
> algorithm can not iterate correctly and I finally found that is because
> 'breeze.linalg.SparseVector.equals' will always return 'true' if two vectors
> have the same dimension.
>
> {code:java}
> scala> val zero = SparseVector.zeros[Double](10)
> zero: breeze.linalg.SparseVector[Double] = SparseVector(10)()
> scala> val vec = SparseVector(10)((0, 1.0))
> vec: breeze.linalg.SparseVector[Double] = SparseVector(10)((0,1.0))
> scala> zero == vec
> res2: Boolean = true
> {code}
>
> Does that bring the same error for 'Graph.staticParallelPersonalizedPageRank'
> ?
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