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https://issues.apache.org/jira/browse/SPARK-5363?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14320986#comment-14320986
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Apache Spark commented on SPARK-5363:
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User 'davies' has created a pull request for this issue:
https://github.com/apache/spark/pull/4601
> Spark 1.2 freeze without error notification
> -------------------------------------------
>
> Key: SPARK-5363
> URL: https://issues.apache.org/jira/browse/SPARK-5363
> Project: Spark
> Issue Type: Bug
> Components: PySpark
> Affects Versions: 1.2.0
> Reporter: Tassilo Klein
> Assignee: Davies Liu
> Priority: Critical
>
> After a number of calls to a map().collect() statement Spark freezes without
> reporting any error. Within the map a large broadcast variable is used.
> The freezing can be avoided by setting 'spark.python.worker.reuse = false'
> (Spark 1.2) or using an earlier version, however, at the prize of low speed.
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