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https://issues.apache.org/jira/browse/SPARK-1770?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Patrick Wendell resolved SPARK-1770.
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Resolution: Fixed
> repartition and coalesce(shuffle=true) put objects with the same key in the
> same bucket
> ---------------------------------------------------------------------------------------
>
> Key: SPARK-1770
> URL: https://issues.apache.org/jira/browse/SPARK-1770
> Project: Spark
> Issue Type: Bug
> Affects Versions: 0.9.0, 1.0.0, 0.9.1
> Reporter: Matei Zaharia
> Assignee: Patrick Wendell
> Priority: Blocker
> Labels: Starter
> Fix For: 1.0.0
>
>
> This is bad when you have many identical objects. We should assign each one a
> random key.
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