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https://issues.apache.org/jira/browse/SPARK-3239?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matei Zaharia updated SPARK-3239:
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Summary: Choose disks for spilling randomly in PySpark (was: Choose disks
for spilling randomly)
> Choose disks for spilling randomly in PySpark
> ---------------------------------------------
>
> Key: SPARK-3239
> URL: https://issues.apache.org/jira/browse/SPARK-3239
> Project: Spark
> Issue Type: Improvement
> Components: PySpark
> Affects Versions: 1.1.0
> Reporter: Davies Liu
> Assignee: Davies Liu
> Fix For: 1.1.0
>
>
> Currently, ExternalHashMerger spill data into disks in the same order
> crossing processes in same node, it will have IO contention.
> It should choose the disks randomly.
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