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https://issues.apache.org/jira/browse/SPARK-3142?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14103180#comment-14103180
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Apache Spark commented on SPARK-3142:
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User 'mengxr' has created a pull request for this issue:
https://github.com/apache/spark/pull/2049
> Reduce memory usage in Word2Vec
> -------------------------------
>
> Key: SPARK-3142
> URL: https://issues.apache.org/jira/browse/SPARK-3142
> Project: Spark
> Issue Type: Improvement
> Components: MLlib
> Reporter: Xiangrui Meng
> Assignee: Xiangrui Meng
>
> A temporary list is created to store shuffle data, which is not necessary. We
> can wrap it into an iterator.
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