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https://issues.apache.org/jira/browse/SPARK-4264?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Patrick Wendell updated SPARK-4264:
-----------------------------------
    Fix Version/s: 1.2.0

> SQL HashJoin induces "refCnt = 0" error in ShuffleBlockFetcherIterator
> ----------------------------------------------------------------------
>
>                 Key: SPARK-4264
>                 URL: https://issues.apache.org/jira/browse/SPARK-4264
>             Project: Spark
>          Issue Type: Bug
>    Affects Versions: 1.2.0
>            Reporter: Aaron Davidson
>            Assignee: Aaron Davidson
>            Priority: Blocker
>             Fix For: 1.2.0
>
>
> This is because it calls hasNext twice, which invokes the completion iterator 
> twice, unintuitively.



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