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https://issues.apache.org/jira/browse/SPARK-6713?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Reza Zadeh updated SPARK-6713:
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Description: We should use Iterators in columnSimilarities to allow
mapPartitionsWithIndex to spill to disk. This could happen in a dense and large
column - this way Spark can spill the pairs onto disk instead of building all
the pairs before handing them to Spark. (was: We should use Iterators in
columnSimilarities to allow flatMap to spill to disk. This could happen in a
dense and large column - this way Spark can spill the pairs onto disk instead
of building all the pairs before handing them to Spark.)
> Iterators in columnSimilarities to allow flatMap spill
> ------------------------------------------------------
>
> Key: SPARK-6713
> URL: https://issues.apache.org/jira/browse/SPARK-6713
> Project: Spark
> Issue Type: Improvement
> Components: MLlib
> Reporter: Reza Zadeh
>
> We should use Iterators in columnSimilarities to allow mapPartitionsWithIndex
> to spill to disk. This could happen in a dense and large column - this way
> Spark can spill the pairs onto disk instead of building all the pairs before
> handing them to Spark.
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